Re: [PATCH 2/4] drm/mediatek: add mt8195 hdmi TX support

From: Chunfeng Yun
Date: Wed Sep 22 2021 - 04:32:06 EST

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On Tue, 2021-09-07 at 10:37 +0200, Guillaume Ranquet wrote:
> Add basic hdmi TX support for the mediatek mt8195 SoCs
>
> Signed-off-by: Guillaume Ranquet <granquet@xxxxxxxxxxxx>
> ---
> drivers/gpu/drm/mediatek/Kconfig | 10 +
> drivers/gpu/drm/mediatek/Makefile | 4 +-
> drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c | 2413
> +++++++++++++++++
> drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.h | 147 +
> .../gpu/drm/mediatek/mtk_mt8195_hdmi_ddc.c | 541 ++++
> .../gpu/drm/mediatek/mtk_mt8195_hdmi_ddc.h | 20 +
> .../gpu/drm/mediatek/mtk_mt8195_hdmi_regs.h | 276 ++
> 7 files changed, 3410 insertions(+), 1 deletion(-)
> create mode 100644 drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> create mode 100644 drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.h
> create mode 100644 drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_ddc.c
> create mode 100644 drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_ddc.h
> create mode 100644 drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_regs.h
>
> diff --git a/drivers/gpu/drm/mediatek/Kconfig
> b/drivers/gpu/drm/mediatek/Kconfig
> index 2976d21e9a34..cda4672d29a7 100644
> --- a/drivers/gpu/drm/mediatek/Kconfig
> +++ b/drivers/gpu/drm/mediatek/Kconfig
> @@ -28,3 +28,13 @@ config DRM_MEDIATEK_HDMI
> select PHY_MTK_HDMI
> help
> DRM/KMS HDMI driver for Mediatek SoCs
> +
> +config DRM_MEDIATEK_HDMI_SUSPEND_LOW_POWER
> + tristate "DRM HDMI SUSPEND LOW POWER Support for Mediatek SoCs"
> + depends on DRM_MEDIATEK_HDMI
> + help
> + DRM/KMS HDMI SUSPEND_LOW_POWER for Mediatek SoCs.
> + Choose this option if you want to disable/enable
> + clock and power domain when platform enter suspend,
> + and this config depends on DRM_MEDIATEK_HDMI.
> +
> diff --git a/drivers/gpu/drm/mediatek/Makefile
> b/drivers/gpu/drm/mediatek/Makefile
> index 3abd27d7c91d..b86c860161ba 100644
> --- a/drivers/gpu/drm/mediatek/Makefile
> +++ b/drivers/gpu/drm/mediatek/Makefile
> @@ -22,6 +22,8 @@ obj-$(CONFIG_DRM_MEDIATEK) += mediatek-drm.o
>
> mediatek-drm-hdmi-objs := mtk_cec.o \
> mtk_hdmi.o \
> - mtk_hdmi_ddc.o
> + mtk_hdmi_ddc.o \
> + mtk_mt8195_hdmi.o \
> + mtk_mt8195_hdmi_ddc.o \
>
> obj-$(CONFIG_DRM_MEDIATEK_HDMI) += mediatek-drm-hdmi.o
> diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> new file mode 100644
> index 000000000000..0dc1b7670186
> --- /dev/null
> +++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> @@ -0,0 +1,2413 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2019 MediaTek Inc.
2021?
> + */
> +
> +#include <linux/arm-smccc.h>
> +#include <linux/delay.h>
> +#include <linux/clk.h>
> +#include <linux/clk-provider.h>
> +#include <linux/io.h>
> +#include <linux/kernel.h>
> +#include <linux/mfd/syscon.h>
> +#include <linux/of_platform.h>
> +#include <linux/of.h>
> +#include <linux/of_irq.h>
> +#include <linux/of_gpio.h>
> +#include <linux/of_graph.h>
> +#include <linux/phy/phy.h>
> +#include <linux/kthread.h>
> +#include <linux/timer.h>
> +#include <linux/pm_wakeup.h>
> +
> +#include <drm/drm_scdc_helper.h>
> +#include <drm/drm_displayid.h>
> +#include <drm/drm_probe_helper.h>
> +#include <drm/drm_edid.h>
> +
> +#include "mtk_drm_crtc.h"
> +#include "mtk_mt8195_hdmi_ddc.h"
> +#include "mtk_mt8195_hdmi.h"
> +#include "mtk_mt8195_hdmi_regs.h"
> +
> +#include <linux/debugfs.h>
> +
> +enum hdmi_aud_input_type {
> + HDMI_AUD_INPUT_I2S = 0,
> + HDMI_AUD_INPUT_SPDIF,
> +};
> +
> +enum hdmi_aud_i2s_fmt {
> + HDMI_I2S_MODE_RJT_24BIT = 0,
> + HDMI_I2S_MODE_RJT_16BIT,
> + HDMI_I2S_MODE_LJT_24BIT,
> + HDMI_I2S_MODE_LJT_16BIT,
> + HDMI_I2S_MODE_I2S_24BIT,
> + HDMI_I2S_MODE_I2S_16BIT
> +};
> +
> +enum hdmi_aud_mclk {
> + HDMI_AUD_MCLK_128FS,
> + HDMI_AUD_MCLK_192FS,
> + HDMI_AUD_MCLK_256FS,
> + HDMI_AUD_MCLK_384FS,
> + HDMI_AUD_MCLK_512FS,
> + HDMI_AUD_MCLK_768FS,
> + HDMI_AUD_MCLK_1152FS,
> +};
> +
> +enum hdmi_aud_channel_type {
> + HDMI_AUD_CHAN_TYPE_1_0 = 0,
> + HDMI_AUD_CHAN_TYPE_1_1,
> + HDMI_AUD_CHAN_TYPE_2_0,
> + HDMI_AUD_CHAN_TYPE_2_1,
> + HDMI_AUD_CHAN_TYPE_3_0,
> + HDMI_AUD_CHAN_TYPE_3_1,
> + HDMI_AUD_CHAN_TYPE_4_0,
> + HDMI_AUD_CHAN_TYPE_4_1,
> + HDMI_AUD_CHAN_TYPE_5_0,
> + HDMI_AUD_CHAN_TYPE_5_1,
> + HDMI_AUD_CHAN_TYPE_6_0,
> + HDMI_AUD_CHAN_TYPE_6_1,
> + HDMI_AUD_CHAN_TYPE_7_0,
> + HDMI_AUD_CHAN_TYPE_7_1,
> + HDMI_AUD_CHAN_TYPE_3_0_LRS,
> + HDMI_AUD_CHAN_TYPE_3_1_LRS,
> + HDMI_AUD_CHAN_TYPE_4_0_CLRS,
> + HDMI_AUD_CHAN_TYPE_4_1_CLRS,
> + HDMI_AUD_CHAN_TYPE_6_1_CS,
> + HDMI_AUD_CHAN_TYPE_6_1_CH,
> + HDMI_AUD_CHAN_TYPE_6_1_OH,
> + HDMI_AUD_CHAN_TYPE_6_1_CHR,
> + HDMI_AUD_CHAN_TYPE_7_1_LH_RH,
> + HDMI_AUD_CHAN_TYPE_7_1_LSR_RSR,
> + HDMI_AUD_CHAN_TYPE_7_1_LC_RC,
> + HDMI_AUD_CHAN_TYPE_7_1_LW_RW,
> + HDMI_AUD_CHAN_TYPE_7_1_LSD_RSD,
> + HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS,
> + HDMI_AUD_CHAN_TYPE_7_1_LHS_RHS,
> + HDMI_AUD_CHAN_TYPE_7_1_CS_CH,
> + HDMI_AUD_CHAN_TYPE_7_1_CS_OH,
> + HDMI_AUD_CHAN_TYPE_7_1_CS_CHR,
> + HDMI_AUD_CHAN_TYPE_7_1_CH_OH,
> + HDMI_AUD_CHAN_TYPE_7_1_CH_CHR,
> + HDMI_AUD_CHAN_TYPE_7_1_OH_CHR,
> + HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS_LSR_RSR,
> + HDMI_AUD_CHAN_TYPE_6_0_CS,
> + HDMI_AUD_CHAN_TYPE_6_0_CH,
> + HDMI_AUD_CHAN_TYPE_6_0_OH,
> + HDMI_AUD_CHAN_TYPE_6_0_CHR,
> + HDMI_AUD_CHAN_TYPE_7_0_LH_RH,
> + HDMI_AUD_CHAN_TYPE_7_0_LSR_RSR,
> + HDMI_AUD_CHAN_TYPE_7_0_LC_RC,
> + HDMI_AUD_CHAN_TYPE_7_0_LW_RW,
> + HDMI_AUD_CHAN_TYPE_7_0_LSD_RSD,
> + HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS,
> + HDMI_AUD_CHAN_TYPE_7_0_LHS_RHS,
> + HDMI_AUD_CHAN_TYPE_7_0_CS_CH,
> + HDMI_AUD_CHAN_TYPE_7_0_CS_OH,
> + HDMI_AUD_CHAN_TYPE_7_0_CS_CHR,
> + HDMI_AUD_CHAN_TYPE_7_0_CH_OH,
> + HDMI_AUD_CHAN_TYPE_7_0_CH_CHR,
> + HDMI_AUD_CHAN_TYPE_7_0_OH_CHR,
> + HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS_LSR_RSR,
> + HDMI_AUD_CHAN_TYPE_8_0_LH_RH_CS,
> + HDMI_AUD_CHAN_TYPE_UNKNOWN = 0xFF
> +};
> +
> +enum hdmi_aud_channel_swap_type {
> + HDMI_AUD_SWAP_LR,
> + HDMI_AUD_SWAP_LFE_CC,
> + HDMI_AUD_SWAP_LSRS,
> + HDMI_AUD_SWAP_RLS_RRS,
> + HDMI_AUD_SWAP_LR_STATUS,
> +};
> +
> +struct hdmi_audio_param {
> + enum hdmi_audio_coding_type aud_codec;
> + enum hdmi_audio_sample_size aud_sampe_size;
> + enum hdmi_aud_input_type aud_input_type;
> + enum hdmi_aud_i2s_fmt aud_i2s_fmt;
> + enum hdmi_aud_mclk aud_mclk;
> + enum hdmi_aud_channel_type aud_input_chan_type;
> + struct hdmi_codec_params codec_params;
> +};
> +
> +static const char *const mtk_hdmi_clk_names[MTK_HDMI_CLK_COUNT] = {
> + [MTK_HDMI_CLK_UNIVPLL_D6D4] = "univpll_d6_d4",
> + [MTK_HDMI_CLK_MSDCPLL_D2] = "msdcpll_d2",
> + [MTK_HDMI_CLK_HDMI_APB_SEL] = "hdmi_apb_sel",
> + [MTK_HDMI_UNIVPLL_D4D8] = "univpll_d4_d8",
> + [MTK_HDIM_HDCP_SEL] = "hdcp_sel",
> + [MTK_HDMI_HDCP_24M_SEL] = "hdcp24_sel",
> + [MTK_HDMI_VPP_SPLIT_HDMI] = "split_hdmi",
> +};
> +
> +static inline struct mtk_hdmi *hdmi_ctx_from_bridge(struct
> drm_bridge *b)
> +{
> + return container_of(b, struct mtk_hdmi, bridge);
> +}
> +
> +static inline struct mtk_hdmi *hdmi_ctx_from_conn(struct
> drm_connector *c)
> +{
> + return container_of(c, struct mtk_hdmi, conn);
> +}
> +
> +static struct mtk_hdmi_ddc *hdmi_ddc_ctx_from_mtk_hdmi(struct
> mtk_hdmi *hdmi)
> +{
> + return container_of(hdmi->ddc_adpt, struct mtk_hdmi_ddc, adap);
> +}
> +
> +static u32 mtk_hdmi_read(struct mtk_hdmi *hdmi, u32 offset)
> +{
> + return readl(hdmi->regs + offset);
> +}
> +
> +static void mtk_hdmi_write(struct mtk_hdmi *hdmi, u32 offset, u32
> val)
> +{
> + writel(val, hdmi->regs + offset);
> +}
> +
> +static inline void mtk_hdmi_clear_bits(struct mtk_hdmi *hdmi, u32
> offset,
> + u32 bits)
> +{
> + void __iomem *reg = hdmi->regs + offset;
> + u32 tmp;
> +
> + tmp = readl(reg);
> + tmp &= ~bits;
> + writel(tmp, reg);
> +}
> +
> +static inline void mtk_hdmi_set_bits(struct mtk_hdmi *hdmi, u32
> offset,
> + u32 bits)
> +{
> + void __iomem *reg = hdmi->regs + offset;
> + u32 tmp;
> +
> + tmp = readl(reg);
> + tmp |= bits;
> + writel(tmp, reg);
> +}
> +
> +static void mtk_hdmi_mask(struct mtk_hdmi *hdmi, u32 offset, u32
> val, u32 mask)
> +{
> + void __iomem *reg = hdmi->regs + offset;
> + u32 tmp;
> +
> + tmp = readl(reg);
> + tmp = (tmp & ~mask) | (val & mask);
> + writel(tmp, reg);
> +}
> +
> +static inline void mtk_hdmi_clr_all_int_status(struct mtk_hdmi
> *hdmi)
> +{
> + /*clear all tx irq*/
> + mtk_hdmi_write(hdmi, TOP_INT_CLR00, 0xffffffff);
> + mtk_hdmi_write(hdmi, TOP_INT_CLR00, 0x00000000);
> + mtk_hdmi_write(hdmi, TOP_INT_CLR01, 0xffffffff);
> + mtk_hdmi_write(hdmi, TOP_INT_CLR01, 0x00000000);
> +}
> +
> +static inline void mtk_hdmi_disable_all_int(struct mtk_hdmi *hdmi)
> +{
> + /*disable all tx irq*/
> + mtk_hdmi_write(hdmi, TOP_INT_MASK00, 0x00000000);
> + mtk_hdmi_write(hdmi, TOP_INT_MASK01, 0x00000000);
> +}
> +
> +static inline void mtk_hdmi_en_hdcp_reauth_int(struct mtk_hdmi
> *hdmi,
> + bool enable)
> +{
> + if (enable)
> + mtk_hdmi_mask(hdmi, TOP_INT_MASK00,
> + HDCP2X_RX_REAUTH_REQ_DDCM_INT_UNMASK,
> + HDCP2X_RX_REAUTH_REQ_DDCM_INT_UNMASK);
> + else
> + mtk_hdmi_mask(hdmi, TOP_INT_MASK00,
> + HDCP2X_RX_REAUTH_REQ_DDCM_INT_MASK,
> + HDCP2X_RX_REAUTH_REQ_DDCM_INT_UNMASK);
> +}
> +
> +static inline void mtk_hdmi_enable_hpd_pord_irq(struct mtk_hdmi
> *hdmi,
> + bool enable)
> +{
> + if (enable)
> + mtk_hdmi_mask(hdmi, TOP_INT_MASK00, 0x0000000f,
> 0x0000000f);
> + else
> + mtk_hdmi_mask(hdmi, TOP_INT_MASK00, 0x00000000,
> 0x0000000f);
> +}
> +
> +static inline void mtk_hdmi_clr_htplg_pord_irq(struct mtk_hdmi
> *hdmi)
> +{
> + mtk_hdmi_mask(hdmi, TOP_INT_CLR00, 0x0000000f, 0x0000000f);
> + mtk_hdmi_mask(hdmi, TOP_INT_CLR00, 0x00000000, 0x0000000f);
> +}
> +
> +static inline void mtk_hdmi_set_sw_hpd(struct mtk_hdmi *hdmi, bool
> high)
> +{
> + if (high)
> + mtk_hdmi_mask(hdmi, HDMITX_CONFIG, 0x1 <<
> HDMITX_SW_HPD_SHIFT,
> + HDMITX_SW_HPD);
> + else
> + mtk_hdmi_mask(hdmi, HDMITX_CONFIG, 0x0 <<
> HDMITX_SW_HPD_SHIFT,
> + HDMITX_SW_HPD);
> +}
> +
> +static inline void mtk_hdmi_force_hdcp_hpd(struct mtk_hdmi *hdmi)
> +{
> + /* force HDCP HPD to 1*/
> + mtk_hdmi_mask(hdmi, HDCP2X_CTRL_0, HDCP2X_HPD_OVR,
> HDCP2X_HPD_OVR);
> + mtk_hdmi_mask(hdmi, HDCP2X_CTRL_0, HDCP2X_HPD_SW,
> HDCP2X_HPD_SW);
> +}
> +
> +static void mtk_hdmi_disable_hdcp_encrypt(struct mtk_hdmi *hdmi)
> +{
> + mtk_hdmi_mask(hdmi, HDCP2X_CTRL_0, 0x0 <<
> HDCP2X_ENCRYPT_EN_SHIFT,
> + HDCP2X_ENCRYPT_EN);
> + mtk_hdmi_mask(hdmi, HDCP1X_CTRL, 0x0 << HDCP1X_ENC_EN_SHIFT,
> + HDCP1X_ENC_EN);
> +}
> +
> +static void mtk_hdmi_yuv420_downsample(struct mtk_hdmi *hdmi, bool
> enable)
> +{
> + if (enable) {
> + mtk_hdmi_mask(hdmi, HDMITX_CONFIG,
> + HDMI_YUV420_MODE | HDMITX_SW_HPD,
> + HDMI_YUV420_MODE | HDMITX_SW_HPD);
> + mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG,
> + C444_C422_CONFIG_ENABLE,
> C444_C422_CONFIG_ENABLE);
> + mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG,
> + C422_C420_CONFIG_ENABLE,
> C422_C420_CONFIG_ENABLE);
> + mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG, 0,
> + C422_C420_CONFIG_BYPASS);
> + mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG,
> + C422_C420_CONFIG_OUT_CB_OR_CR,
> + C422_C420_CONFIG_OUT_CB_OR_CR);
> + mtk_hdmi_mask(hdmi, VID_OUT_FORMAT,
> + OUTPUT_FORMAT_DEMUX_420_ENABLE,
> + OUTPUT_FORMAT_DEMUX_420_ENABLE);
> + } else {
> + mtk_hdmi_mask(hdmi, HDMITX_CONFIG, 0 | HDMITX_SW_HPD,
> + HDMI_YUV420_MODE | HDMITX_SW_HPD);
> + mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG, 0,
> + C444_C422_CONFIG_ENABLE);
> + mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG, 0,
> + C422_C420_CONFIG_ENABLE);
> + mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG,
> + C422_C420_CONFIG_BYPASS,
> C422_C420_CONFIG_BYPASS);
> + mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG, 0,
> + C422_C420_CONFIG_OUT_CB_OR_CR);
> + mtk_hdmi_mask(hdmi, VID_OUT_FORMAT, 0,
> + OUTPUT_FORMAT_DEMUX_420_ENABLE);
> + }
> +}
> +
> +static bool mtk_hdmi_tmds_over_340M(struct mtk_hdmi *hdmi)
> +{
> + unsigned long pixel_clk, tmds_clk;
> +
> + pixel_clk = hdmi->mode.clock * 1000; //in HZ
> +
> + /* TMDS clk frequency */
> + if (hdmi->color_depth == HDMI_8_BIT)
> + tmds_clk = pixel_clk;
> + else if (hdmi->color_depth == HDMI_10_BIT)
> + tmds_clk = pixel_clk * 5 / 4; // *1.25
> + else if (hdmi->color_depth == HDMI_12_BIT)
> + tmds_clk = pixel_clk * 3 / 2; // *1.5
> + else if (hdmi->color_depth == HDMI_16_BIT)
> + tmds_clk = pixel_clk * 2; // *2
> + else
> + return -EINVAL;
> +
> + if ((tmds_clk >= 340000000) && (hdmi->csp !=
> HDMI_COLORSPACE_YUV420))
> + return true;
> +
> + return false;
> +}
> +
> +static inline void mtk_hdmi_enable_scrambling(struct mtk_hdmi *hdmi,
> + bool enable)
> +{
> + udelay(100);
> +
> + if (enable)
> + mtk_hdmi_mask(hdmi, TOP_CFG00, SCR_ON | HDMI2_ON,
> + SCR_ON | HDMI2_ON);
> + else
> + mtk_hdmi_mask(hdmi, TOP_CFG00, SCR_OFF | HDMI2_OFF,
> + SCR_ON | HDMI2_ON);
> +}
> +
> +static inline void mtk_hdmi_high_tmds_clock_ratio(struct mtk_hdmi
> *hdmi,
> + bool enable)
> +{
> +}
> +
> +static void mtk_hdmi_480p_576p_setting(struct mtk_hdmi *hdmi)
> +{
> +}
> +
> +static void mtk_hdmi_hw_vid_black(struct mtk_hdmi *hdmi, bool black)
> +{
> + if (black)
> + mtk_hdmi_mask(hdmi, TOP_VMUTE_CFG1, REG_VMUTE_EN,
> REG_VMUTE_EN);
> + else
> + mtk_hdmi_mask(hdmi, TOP_VMUTE_CFG1, 0, REG_VMUTE_EN);
> +}
> +
> +static void mtk_hdmi_hw_aud_mute(struct mtk_hdmi *hdmi)
> +{
> + if (mtk_hdmi_read(hdmi, AIP_CTRL) & DSD_EN)
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL,
> + DSD_MUTE_DATA | AUD_MUTE_FIFO_EN,
> + DSD_MUTE_DATA | AUD_MUTE_FIFO_EN);
> + else
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, AUD_MUTE_FIFO_EN,
> + AUD_MUTE_FIFO_EN);
> +}
> +
> +static void mtk_hdmi_hw_aud_unmute(struct mtk_hdmi *hdmi)
> +{
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, AUD_MUTE_DIS,
> AUD_MUTE_FIFO_EN);
> +}
> +
> +static void mtk_hdmi_hw_reset(struct mtk_hdmi *hdmi)
> +{
> + mtk_hdmi_mask(hdmi, HDMITX_CONFIG, 0x0 << HDMITX_SW_RSTB_SHIFT,
> + HDMITX_SW_RSTB);
> + udelay(1);
> + mtk_hdmi_mask(hdmi, HDMITX_CONFIG, 0x1 << HDMITX_SW_RSTB_SHIFT,
> + HDMITX_SW_RSTB);
> +}
> +
> +static void mtk_hdmi_enable_hdmi_mode(struct mtk_hdmi *hdmi, bool
> enable)
> +{
> + if (enable)
> + mtk_hdmi_mask(hdmi, TOP_CFG00, HDMI_MODE_HDMI,
> HDMI_MODE_HDMI);
> + else
> + mtk_hdmi_mask(hdmi, TOP_CFG00, HDMI_MODE_DVI,
> HDMI_MODE_HDMI);
> +}
> +
> +static bool mtk_hdmi_sink_is_hdmi_device(struct mtk_hdmi *hdmi)
> +{
> + if (hdmi->dvi_mode)
> + return false;
> + else
> + return true;
> +}
> +
> +static void mtk_hdmi_set_deep_color(struct mtk_hdmi *hdmi, bool
> is_hdmi_sink)
> +{
> + unsigned int deep_color = 0;
> +
> + //ycbcr422 12bit not deep color
use /**/
> + if (hdmi->csp == HDMI_COLORSPACE_YUV422)
> + deep_color = DEEPCOLOR_MODE_8BIT;
> + else
add {}
> + if (hdmi->color_depth == HDMI_8_BIT)
> + deep_color = DEEPCOLOR_MODE_8BIT;
> + else if (hdmi->color_depth == HDMI_10_BIT)
> + deep_color = DEEPCOLOR_MODE_10BIT;
> + else if (hdmi->color_depth == HDMI_12_BIT)
> + deep_color = DEEPCOLOR_MODE_12BIT;
> + else if (hdmi->color_depth == HDMI_16_BIT)
> + deep_color = DEEPCOLOR_MODE_16BIT;
> + else
> + WARN_ON(1);
> +
> + mtk_hdmi_mask(hdmi, TOP_CFG00, deep_color,
> DEEPCOLOR_MODE_MASKBIT);
> +
> + /* GCP */
> + mtk_hdmi_mask(hdmi, TOP_CFG00, 0, DEEPCOLOR_PAT_EN);
> + if ((is_hdmi_sink) && (deep_color != DEEPCOLOR_MODE_8BIT))
> + mtk_hdmi_mask(hdmi, TOP_MISC_CTLR, DEEP_COLOR_ADD,
> + DEEP_COLOR_ADD);
> + else
> + mtk_hdmi_mask(hdmi, TOP_MISC_CTLR, 0, DEEP_COLOR_ADD);
> +}
> +
> +static void mtk_hdmi_hw_audio_infoframe(struct mtk_hdmi *hdmi, u8
> *buffer,
> + u8 len)
> +{
> + enum hdmi_infoframe_type frame_type;
> + u8 frame_ver;
> + u8 frame_len;
> + u8 checksum;
> +
> + frame_type = buffer[0];
> + frame_ver = buffer[1];
> + frame_len = buffer[2];
> + checksum = buffer[3];
> +
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, AUD_DIS_WR | AUD_DIS,
> + AUD_EN_WR | AUD_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, AUD_RPT_DIS, AUD_RPT_EN);
> +
> + mtk_hdmi_write(hdmi, TOP_AIF_HEADER,
> + (frame_len << 16) + (frame_ver << 8) +
> + (frame_type << 0));
How about using macro to convert bytes into an uint32 value?

> + mtk_hdmi_write(hdmi, TOP_AIF_PKT00,
> + (buffer[6] << 24) + (buffer[5] << 16) +
> + (buffer[4] << 8) + (buffer[3] << 0));
> + mtk_hdmi_write(hdmi, TOP_AIF_PKT01,
> + (buffer[8] << 8) + (buffer[7] << 0));
> + mtk_hdmi_write(hdmi, TOP_AIF_PKT02, 0);
> + mtk_hdmi_write(hdmi, TOP_AIF_PKT03, 0);
> +
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, AUD_RPT_EN, AUD_RPT_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, AUD_EN_WR | AUD_EN,
> + AUD_EN_WR | AUD_EN);
> +}
> +
> +static void mtk_hdmi_hw_avi_infoframe(struct mtk_hdmi *hdmi, u8
> *buffer, u8 len)
> +{
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, AVI_DIS_WR | AVI_DIS,
> + AVI_EN_WR | AVI_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, AVI_RPT_DIS, AVI_RPT_EN);
> +
> + mtk_hdmi_write(hdmi, TOP_AVI_HEADER,
> + (buffer[2] << 16) + (buffer[1] << 8) +
> (buffer[0] << 0));
> +
> + mtk_hdmi_write(hdmi, TOP_AVI_PKT00,
> + (buffer[6] << 24) + (buffer[5] << 16) +
> + (buffer[4] << 8) + (buffer[3] << 0));
> +
> + mtk_hdmi_write(hdmi, TOP_AVI_PKT01,
> + (buffer[9] << 16) + (buffer[8] << 8) +
> (buffer[7] << 0));
> +
> + mtk_hdmi_write(hdmi, TOP_AVI_PKT02,
> + (buffer[13] << 24) + (buffer[12] << 16) +
> + (buffer[11] << 8) + (buffer[10] << 0));
> +
> + mtk_hdmi_write(hdmi, TOP_AVI_PKT03,
> + (buffer[16] << 16) + (buffer[15] << 8) +
> + (buffer[14] << 0));
> +
> + mtk_hdmi_write(hdmi, TOP_AVI_PKT04, 0);
> + mtk_hdmi_write(hdmi, TOP_AVI_PKT05, 0);
> +
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, AVI_RPT_EN, AVI_RPT_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, AVI_EN_WR | AVI_EN,
> + AVI_EN_WR | AVI_EN);
> +}
> +
> +static void mtk_hdmi_hw_spd_infoframe(struct mtk_hdmi *hdmi, u8
> *buffer, u8 len)
> +{
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, SPD_DIS_WR | SPD_DIS,
> + SPD_EN_WR | SPD_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, SPD_RPT_DIS, SPD_RPT_EN);
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_HEADER,
> + (buffer[2] << 16) + (buffer[1] << 8) +
> (buffer[0] << 0));
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_PKT00,
> + (buffer[6] << 24) + (buffer[5] << 16) +
> + (buffer[4] << 8) + (buffer[3] << 0));
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_PKT01,
> + (buffer[9] << 16) + (buffer[8] << 8) +
> (buffer[7] << 0));
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_PKT02,
> + (buffer[13] << 24) + (buffer[12] << 16) +
> + (buffer[11] << 8) + (buffer[10] << 0));
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_PKT03,
> + (buffer[16] << 16) + (buffer[15] << 8) +
> + (buffer[14] << 0));
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_PKT04,
> + (buffer[20] << 24) + (buffer[19] << 16) +
> + (buffer[18] << 8) + (buffer[17] << 0));
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_PKT05,
> + (buffer[23] << 16) + (buffer[22] << 8) +
> + (buffer[21] << 0));
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_PKT06,
> + (buffer[27] << 24) + (buffer[26] << 16) +
> + (buffer[25] << 8) + (buffer[24] << 0));
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_PKT07,
> + (buffer[30] << 16) + (buffer[29] << 8) +
> + (buffer[28] << 0));
> +
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, SPD_RPT_EN, SPD_RPT_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, SPD_EN_WR | SPD_EN,
> + SPD_EN_WR | SPD_EN);
> +}
> +
> +static int mtk_hdmi_setup_audio_infoframe(struct mtk_hdmi *hdmi)
> +{
> + struct hdmi_codec_params *params = &hdmi->aud_param-
> >codec_params;
> + struct hdmi_audio_infoframe frame;
> + u8 buffer[14];
> + ssize_t err;
> +
use dev_dbg()?
> + pr_info("HDMI_CODEC_PARAMS: audio infoframe\n");
> + pr_info("type %d\n", params->cea.type);
> + pr_info("version %d\n", params->cea.version);
> + pr_info("length %d\n", params->cea.length);
> + pr_info("channels %d\n", params->cea.channels);
> + pr_info("coding_type %d\n", params->cea.coding_type);
> + pr_info("sample_size %d\n", params->cea.sample_size);
> + pr_info("sample_frequency %d\n", params->cea.sample_frequency);
> + pr_info("coding_type_ext %d\n", params->cea.coding_type_ext);
> + pr_info("channel_allocation %d\n", params-
> >cea.channel_allocation);
> +
> + memcpy(&frame, &params->cea, sizeof(struct
> hdmi_audio_infoframe));
> +
> + err = hdmi_audio_infoframe_pack(&frame, buffer,
> sizeof(buffer));
> + if (err < 0)
> + return err;
> +
> + mtk_hdmi_hw_audio_infoframe(hdmi, buffer, sizeof(buffer));
> + return 0;
> +}
> +
> +static void mtk_hdmi_hw_send_aud_packet(struct mtk_hdmi *hdmi, bool
> enable)
> +{
> + if (!enable)
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, AUD_PACKET_DROP,
> + AUD_PACKET_DROP);
> + else
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, 0, AUD_PACKET_DROP);
> +}
> +
> +static inline void mtk_hdmi_hw_send_av_mute(struct mtk_hdmi *hdmi)
> +{
> + /*GCP packet */
> + mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_CLR_MUTE_EN);
> + mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_SET_MUTE_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, 0, CP_RPT_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, 0, CP_EN | CP_EN_WR);
> +
> + mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_CLR_MUTE_EN);
> + mtk_hdmi_mask(hdmi, TOP_CFG01, CP_SET_MUTE_EN, CP_SET_MUTE_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, CP_RPT_EN, CP_RPT_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, CP_EN | CP_EN_WR, CP_EN |
> CP_EN_WR);
> +}
> +
> +static inline void mtk_hdmi_hw_send_av_unmute(struct mtk_hdmi *hdmi)
> +{
> + /*GCP packet */
> + mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_CLR_MUTE_EN);
> + mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_SET_MUTE_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, 0, CP_RPT_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, 0, CP_EN | CP_EN_WR);
> +
> + mtk_hdmi_mask(hdmi, TOP_CFG01, CP_CLR_MUTE_EN, CP_CLR_MUTE_EN);
> + mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_SET_MUTE_DIS);
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, CP_RPT_EN, CP_RPT_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, CP_EN | CP_EN_WR, CP_EN |
> CP_EN_WR);
> +}
> +
> +static void mtk_hdmi_hw_ncts_enable(struct mtk_hdmi *hdmi, bool
> enable)
> +{
> + unsigned int data;
> +
> + data = mtk_hdmi_read(hdmi, AIP_CTRL);
> +
> + if (enable)
> + data |= CTS_SW_SEL;
> + else
> + data &= ~CTS_SW_SEL;
> +
> + mtk_hdmi_write(hdmi, AIP_CTRL, data);
> +}
> +
> +static void mtk_hdmi_hw_aud_set_channel_status(struct mtk_hdmi
> *hdmi,
> + u8 *channel_status)
> +{
> + /* actually, only the first 5 or 7 bytes of Channel Status
> + * contain useful information
> + */
> + mtk_hdmi_write(hdmi, AIP_I2S_CHST0,
> + (channel_status[3] << 24) + (channel_status[2]
> << 16) +
> + (channel_status[1] << 8) +
> + (channel_status[0] << 0));
> + mtk_hdmi_write(hdmi, AIP_I2S_CHST1,
> + (channel_status[6] << 16) + (channel_status[5]
> << 8) +
> + (channel_status[4] << 0));
> +}
> +
> +struct hdmi_acr_n {
> + unsigned int clock;
> + unsigned int n[3];
> +};
> +
> +/* Recommended N values from HDMI specification, tables 7-1 to 7-3
> */
> +static const struct hdmi_acr_n hdmi_rec_n_table[] = {
> + /* Clock, N: 32kHz 44.1kHz 48kHz */
> + { 25175, { 4576, 7007, 6864 } },
> + { 74176, { 11648, 17836, 11648 } },
> + { 148352, { 11648, 8918, 5824 } },
> + { 296703, { 5824, 4459, 5824 } },
> + { 297000, { 3072, 4704, 5120 } },
> + { 0, { 4096, 6272, 6144 } }, /* all other TMDS clocks */
> +};
> +
> +/**
> + * hdmi_recommended_n() - Return N value recommended by HDMI
> specification
> + * @freq: audio sample rate in Hz
> + * @clock: rounded TMDS clock in kHz
> + */
> +static unsigned int hdmi_recommended_n(unsigned int freq, unsigned
> int clock)
> +{
> + const struct hdmi_acr_n *recommended;
> + unsigned int i;
> +
> + for (i = 0; i < ARRAY_SIZE(hdmi_rec_n_table) - 1; i++) {
> + if (clock == hdmi_rec_n_table[i].clock)
> + break;
> + }
> + recommended = hdmi_rec_n_table + i;
> +
> + switch (freq) {
> + case 32000:
> + return recommended->n[0];
> + case 44100:
> + return recommended->n[1];
> + case 48000:
> + return recommended->n[2];
> + case 88200:
> + return recommended->n[1] * 2;
> + case 96000:
> + return recommended->n[2] * 2;
> + case 176400:
> + return recommended->n[1] * 4;
> + case 192000:
> + return recommended->n[2] * 4;
> + default:
> + return (128 * freq) / 1000;
> + }
> +}
> +
> +static unsigned int hdmi_mode_clock_to_hz(unsigned int clock)
> +{
> + switch (clock) {
> + case 25175:
> + return 25174825; /* 25.2/1.001 MHz */
> + case 74176:
> + return 74175824; /* 74.25/1.001 MHz */
> + case 148352:
> + return 148351648; /* 148.5/1.001 MHz */
> + case 296703:
> + return 296703297; /* 297/1.001 MHz */
> + default:
> + return clock * 1000;
> + }
> +}
> +
> +static unsigned int hdmi_expected_cts(unsigned int
> audio_sample_rate,
> + unsigned int tmds_clock, unsigned
> int n)
> +{
> + return
> DIV_ROUND_CLOSEST_ULL((u64)hdmi_mode_clock_to_hz(tmds_clock) * n,
> + 128 * audio_sample_rate);
> +}
> +
> +static void mtk_hdmi_hw_aud_set_ncts(struct mtk_hdmi *hdmi,
> + unsigned int sample_rate,
> + unsigned int clock)
> +{
> + unsigned int n, ncts;
> +
> + n = hdmi_recommended_n(sample_rate, clock);
> + ncts = hdmi_expected_cts(sample_rate, clock, n);
> + mtk_hdmi_write(hdmi, AIP_N_VAL, n);
> + mtk_hdmi_write(hdmi, AIP_CTS_SVAL, ncts);
> +}
> +
> +static int mtk_hdmi_aud_enable_packet(struct mtk_hdmi *hdmi, bool
> enable)
> +{
> + mtk_hdmi_hw_send_aud_packet(hdmi, enable);
> + return 0;
> +}
> +
> +static int mtk_hdmi_aud_on_off_hw_ncts(struct mtk_hdmi *hdmi, bool
> on)
> +{
> + mtk_hdmi_hw_ncts_enable(hdmi, on);
> + return 0;
> +}
> +
> +static void mtk_hdmi_audio_dsd_config(struct mtk_hdmi *hdmi,
> + unsigned char chNum, bool
> dsd_bypass)
> +{
> + mtk_hdmi_mask(hdmi, AIP_CTRL, DSD_EN, SPDIF_EN | DSD_EN |
> HBRA_ON);
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, DSD_MUTE_DATA, DSD_MUTE_DATA);
> + if (dsd_bypass)
> + mtk_hdmi_write(hdmi, TOP_AUD_MAP, 0x75316420);
> + /* 0x13570246 */
> + else
> + mtk_hdmi_write(hdmi, TOP_AUD_MAP, 0x04230150);
> + /* 0 FL;1 SL;2 CENT;3 FR;4 SR;5 LFE 0x32400510 */
> +
> + /* rxtx bypass */
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, 0, I2S2DSD_EN);
> +}
> +
> +static inline void mtk_hdmi_hw_i2s_fifo_map(struct mtk_hdmi *hdmi,
> + unsigned int fifo_mapping)
> +{
> + mtk_hdmi_mask(hdmi, AIP_I2S_CTRL, fifo_mapping,
> + FIFO3_MAP | FIFO2_MAP | FIFO1_MAP | FIFO0_MAP);
> +}
> +
> +static inline void mtk_hdmi_hw_i2s_ch_number(struct mtk_hdmi *hdmi,
> + unsigned int chNum)
> +{
> + mtk_hdmi_mask(hdmi, AIP_CTRL, chNum << I2S_EN_SHIFT, I2S_EN);
> +}
> +
> +static void mtk_hdmi_hw_i2s_ch_mapping(struct mtk_hdmi *hdmi,
> + unsigned char chNum,
> + unsigned char mapping)
> +{
> + unsigned int bData, bData1, bData2, bData3;
Avoid camel case style if not defined in spec, check others

> +
> + if (chNum == 2) { /* I2S 2ch */
> + bData = 0x1; /* 2ch data */
> + bData1 = 0x50; /* data0 */
> +
> + } else if ((chNum == 3) || (chNum == 4)) { /* I2S 2ch */
> + if ((chNum == 4) && (mapping == 0x08))
> + bData = 0x3; /* 4ch data */
> + else
> + bData = 0x03; /* 4ch data */
they are the same value? if so, no need 'if selse'

> +
> + bData1 = 0x50; /* data0 */
> +
> + } else if ((chNum == 6) || (chNum == 5)) { /* I2S 5.1ch */
> + if ((chNum == 6) && (mapping == 0x0E)) {
> + bData = 0xf; /* 6.0 ch data */
> + bData1 = 0x50; /* data0 */
> + } else {
> + bData = 0x7; /* 5.1ch data, 5/0ch */
> + bData1 = 0x50; /* data0 */
> + }
> +
> + } else if (chNum == 8) { /* I2S 5.1ch */
> + bData = 0xf; /* 7.1ch data */
> + bData1 = 0x50; /* data0 */
> + } else if (chNum == 7) { /* I2S 6.1ch */
> + bData = 0xf; /* 6.1ch data */
> + bData1 = 0x50; /* data0 */
> + } else {
> + bData = 0x01; /* 2ch data */
> + bData1 = 0x50; /* data0 */
> + }
bData1 is always 0x50? do it like bData2?

> +
> + bData2 = 0xc6;
> + bData3 = 0xfa;
> +
> + mtk_hdmi_hw_i2s_fifo_map(hdmi, (MAP_SD3 << 6) | (MAP_SD2 << 4)
> |
> + (MAP_SD1 << 2) |
> (MAP_SD0 << 0));
> + mtk_hdmi_hw_i2s_ch_number(hdmi, bData);
> +
> + if (chNum == 2)
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, LAYOUT0, LAYOUT1);
> + else
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, LAYOUT1, LAYOUT1);
> +}
> +
> +static void mtk_hdmi_i2s_data_fmt(struct mtk_hdmi *hdmi, unsigned
> char fmt)
> +{
> + unsigned int u4Data;
> +
> + u4Data = mtk_hdmi_read(hdmi, AIP_I2S_CTRL);
> + u4Data &= ~(WS_HIGH | I2S_1ST_BIT_NOSHIFT | JUSTIFY_RIGHT);
> +
> + switch (fmt) {
> + case HDMI_I2S_MODE_RJT_24BIT:
> + u4Data |= (WS_HIGH | I2S_1ST_BIT_NOSHIFT |
> JUSTIFY_RIGHT);
> + break;
> +
> + case HDMI_I2S_MODE_RJT_16BIT:
> + u4Data |= (WS_HIGH | I2S_1ST_BIT_NOSHIFT |
> JUSTIFY_RIGHT);
> + break;
> +
> + case HDMI_I2S_MODE_LJT_24BIT:
> + u4Data |= (WS_HIGH | I2S_1ST_BIT_NOSHIFT);
> + break;
> +
> + case HDMI_I2S_MODE_LJT_16BIT:
> + u4Data |= (WS_HIGH | I2S_1ST_BIT_NOSHIFT);
> + break;
> +
> + case HDMI_I2S_MODE_I2S_24BIT:
> + break;
> +
> + case HDMI_I2S_MODE_I2S_16BIT:
> + break;
> +
> + default:
> + break;
> + }
> + mtk_hdmi_write(hdmi, AIP_I2S_CTRL, u4Data);
> +
> + u4Data = mtk_hdmi_read(hdmi, AIP_I2S_CTRL);
> +}
> +
> +static inline void mtk_hdmi_i2s_sck_edge(struct mtk_hdmi *hdmi,
> + unsigned int edge)
> +{
> + mtk_hdmi_mask(hdmi, AIP_I2S_CTRL, edge, SCK_EDGE_RISE);
> +}
> +
> +static inline void mtk_hdmi_i2s_cbit_order(struct mtk_hdmi *hdmi,
> + unsigned int cbit)
> +{
> + mtk_hdmi_mask(hdmi, AIP_I2S_CTRL, cbit, CBIT_ORDER_SAME);
> +}
> +
> +static inline void mtk_hdmi_i2s_vbit(struct mtk_hdmi *hdmi, unsigned
> int vbit)
> +{
> + mtk_hdmi_mask(hdmi, AIP_I2S_CTRL, vbit, VBIT_COM);
> +}
> +
> +static inline void mtk_hdmi_i2s_data_direction(struct mtk_hdmi
> *hdmi,
> + unsigned int data_dir)
> +{
> + mtk_hdmi_mask(hdmi, AIP_I2S_CTRL, data_dir, DATA_DIR_LSB);
> +}
> +
> +static inline void mtk_hdmi_hw_audio_type(struct mtk_hdmi *hdmi,
> + unsigned int spdif_i2s)
> +{
> + mtk_hdmi_mask(hdmi, AIP_CTRL, spdif_i2s << SPDIF_EN_SHIFT,
> SPDIF_EN);
> +}
> +
> +static unsigned char mtk_hdmi_get_i2s_ch_mapping(struct mtk_hdmi
> *hdmi,
> + unsigned char
> channel_type)
> +{
> + unsigned char FR, FL, FC, LFE, RR, RL, RRC, RLC, RC;
> + unsigned char ch_number = 0;
> + unsigned char ChannelMap = 0x00;
> +
> + switch (channel_type) {
> + case HDMI_AUD_CHAN_TYPE_1_0:
> + case HDMI_AUD_CHAN_TYPE_2_0:
> + FR = 1;
> + FL = 1;
FR/FL are always 1, no need put them here.
> + LFE = 0;
> + ch_number = 2;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_1_1:
> + case HDMI_AUD_CHAN_TYPE_2_1:
> + FR = 1;
> + FL = 1;
> + LFE = 1;
> + ch_number = 3;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_3_0:
> + FR = 1;
> + FL = 1;
> + FC = 1;
> + LFE = 0;
> + ch_number = 3;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_3_0_LRS:
> + FR = 1;
> + FL = 1;
> + RR = 1;
> + RL = 1;
> + LFE = 0;
> + ch_number = 4;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_3_1_LRS:
> + FR = 1;
> + FL = 1;
> + FC = 0;
> + LFE = 1;
> + RR = 1;
> + RL = 1;
> + ch_number = 5;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_4_0_CLRS:
> + FR = 1;
> + FL = 1;
> + FC = 1;
> + LFE = 0;
> + RR = 1;
> + RL = 1;
> + ch_number = 5;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_4_1_CLRS:
> + FR = 1;
> + FL = 1;
> + FC = 1;
> + LFE = 1;
> + RR = 1;
> + RL = 1;
> + ch_number = 6;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_3_1:
> + FR = 1;
> + FL = 1;
> + FC = 1;
> + LFE = 1;
> + ch_number = 4;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_4_0:
> + FR = 1;
> + FL = 1;
> + RR = 1;
> + RL = 1;
> + LFE = 0;
> + ch_number = 4;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_4_1:
> + FR = 1;
> + FL = 1;
> + RR = 1;
> + RL = 1;
> + LFE = 1;
> + ch_number = 5;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_5_0:
> + FR = 1;
> + FL = 1;
> + FC = 1;
> + LFE = 0;
> + RR = 1;
> + RL = 1;
> + ch_number = 5;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_5_1:
> + FR = 1;
> + FL = 1;
> + FC = 1;
> + LFE = 1;
> + RR = 1;
> + RL = 1;
> + ch_number = 6;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_6_0:
> + case HDMI_AUD_CHAN_TYPE_6_0_CS:
> + case HDMI_AUD_CHAN_TYPE_6_0_CH:
> + case HDMI_AUD_CHAN_TYPE_6_0_OH:
> + case HDMI_AUD_CHAN_TYPE_6_0_CHR:
> + FR = 1;
> + FL = 1;
> + FC = 1;
> + LFE = 0;
> + RR = 1;
> + RL = 1;
> + RC = 1;
> + ch_number = 6;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_6_1:
> + case HDMI_AUD_CHAN_TYPE_6_1_CS:
> + case HDMI_AUD_CHAN_TYPE_6_1_CH:
> + case HDMI_AUD_CHAN_TYPE_6_1_OH:
> + case HDMI_AUD_CHAN_TYPE_6_1_CHR:
> + FR = 1;
> + FL = 1;
> + FC = 1;
> + LFE = 1;
> + RR = 1;
> + RL = 1;
> + RC = 1;
> + ch_number = 7;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_7_0:
> + case HDMI_AUD_CHAN_TYPE_7_0_LH_RH:
> + case HDMI_AUD_CHAN_TYPE_7_0_LSR_RSR:
> + case HDMI_AUD_CHAN_TYPE_7_0_LC_RC:
> + case HDMI_AUD_CHAN_TYPE_7_0_LW_RW:
> + case HDMI_AUD_CHAN_TYPE_7_0_LSD_RSD:
> + case HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS:
> + case HDMI_AUD_CHAN_TYPE_7_0_LHS_RHS:
> + case HDMI_AUD_CHAN_TYPE_7_0_CS_CH:
> + case HDMI_AUD_CHAN_TYPE_7_0_CS_OH:
> + case HDMI_AUD_CHAN_TYPE_7_0_CS_CHR:
> + case HDMI_AUD_CHAN_TYPE_7_0_CH_OH:
> + case HDMI_AUD_CHAN_TYPE_7_0_CH_CHR:
> + case HDMI_AUD_CHAN_TYPE_7_0_OH_CHR:
> + case HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS_LSR_RSR:
> + case HDMI_AUD_CHAN_TYPE_8_0_LH_RH_CS:
> + FR = 1;
> + FL = 1;
> + FC = 1;
> + LFE = 0;
> + RR = 1;
> + RL = 1;
> + RRC = 1;
> + RLC = 1;
> + ch_number = 7;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_7_1:
> + case HDMI_AUD_CHAN_TYPE_7_1_LH_RH:
> + case HDMI_AUD_CHAN_TYPE_7_1_LSR_RSR:
> + case HDMI_AUD_CHAN_TYPE_7_1_LC_RC:
> + case HDMI_AUD_CHAN_TYPE_7_1_LW_RW:
> + case HDMI_AUD_CHAN_TYPE_7_1_LSD_RSD:
> + case HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS:
> + case HDMI_AUD_CHAN_TYPE_7_1_LHS_RHS:
> + case HDMI_AUD_CHAN_TYPE_7_1_CS_CH:
> + case HDMI_AUD_CHAN_TYPE_7_1_CS_OH:
> + case HDMI_AUD_CHAN_TYPE_7_1_CS_CHR:
> + case HDMI_AUD_CHAN_TYPE_7_1_CH_OH:
> + case HDMI_AUD_CHAN_TYPE_7_1_CH_CHR:
> + case HDMI_AUD_CHAN_TYPE_7_1_OH_CHR:
> + case HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS_LSR_RSR:
> + FR = 1;
> + FL = 1;
> + FC = 1;
> + LFE = 1;
> + RR = 1;
> + RL = 1;
> + RRC = 1;
> + RLC = 1;
> + ch_number = 8;
> + break;
> +
> + default:
> + FR = 1;
> + FL = 1;
> + ch_number = 2;
> + break;
> + }
> +
> + switch (ch_number) {
> + case 8:
> + break;
> +
> + case 7:
> + break;
> +
> + case 6:
> + if ((FR == 1) && (FL == 1) && (FC == 1) && (RR == 1) &&
> + (RL == 1) && (RC == 1) && (LFE == 0)) {
> + /* 6.0 */
> + ChannelMap = 0x0E;
> + } else if ((FR == 1) && (FL == 1) && (FC == 1) && (RR
> == 1) &&
> + (RL == 1) && (RC == 0) && (LFE == 1)) {
> + /* 5.1 */
> + ChannelMap = 0x0B;
> + }
> + break;
> +
> + case 5:
> + break;
> +
> + case 4:
> + if ((FR == 1) && (FL == 1) && (RR == 1) && (RL == 1) &&
> + (LFE == 0))
> + ChannelMap = 0x08;
> + else if ((FR == 1) && (FL == 1) && (FC == 1) && (LFE ==
> 1))
> + ChannelMap = 0x03;
> + break;
> +
> + case 3:
> + if ((FR == 1) && (FL == 1) && (FC == 1))
> + ChannelMap = 0x02;
> + else if ((FR == 1) && (FL == 1) && (LFE == 1))
> + ChannelMap = 0x01;
> + break;
> +
> + case 2:
> + if ((FR == 1) && (FL == 1))
> + ChannelMap = 0x00;
> + break;
> +
> + default:
> + break;
> + }
> +
> + return ChannelMap;
> +}
> +
> +static inline void mtk_hdmi_hw_i2s_ch_swap(struct mtk_hdmi *hdmi,
> + unsigned char SwapBit)
> +{
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, SwapBit << 20, 0x0F << 20);
> +}
> +
> +static void mtk_hdmi_hbr_config(struct mtk_hdmi *hdmi, bool
> dsd_bypass)
> +{
> + if (dsd_bypass) {
> + mtk_hdmi_mask(hdmi, AIP_CTRL, HBRA_ON,
> + SPDIF_EN | DSD_EN | HBRA_ON);
> + mtk_hdmi_mask(hdmi, AIP_CTRL, I2S_EN, I2S_EN);
> + } else {
> + mtk_hdmi_mask(hdmi, AIP_CTRL, SPDIF_EN,
> + SPDIF_EN | DSD_EN | HBRA_ON);
> + mtk_hdmi_mask(hdmi, AIP_CTRL, SPDIF_INTERNAL_MODULE,
> + SPDIF_INTERNAL_MODULE);
> + mtk_hdmi_mask(hdmi, AIP_CTRL, HBR_FROM_SPDIF,
> HBR_FROM_SPDIF);
> + mtk_hdmi_mask(hdmi, AIP_CTRL, CTS_CAL_N4, CTS_CAL_N4);
> + }
> +}
> +
> +static inline void mtk_hdmi_hw_spdif_config(struct mtk_hdmi *hdmi)
> +{
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, WR_1UI_UNLOCK,
> WR_1UI_LOCK);
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, FS_UNOVERRIDE,
> FS_OVERRIDE_WRITE);
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, WR_2UI_UNLOCK,
> WR_2UI_LOCK);
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, 0x4 << MAX_1UI_WRITE_SHIFT,
> + MAX_1UI_WRITE);
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, 0x9 << MAX_2UI_WRITE_SHIFT,
> + MAX_2UI_WRITE);
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, 0x4 <<
> AUD_ERR_THRESH_SHIFT,
> + AUD_ERR_THRESH);
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, I2S2DSD_EN, I2S2DSD_EN);
> +}
> +
> +static int mtk_hdmi_aud_set_input(struct mtk_hdmi *hdmi)
> +{
> + unsigned char ChMapping;
> +
> + mtk_hdmi_write(hdmi, TOP_AUD_MAP,
> + C_SD7 + C_SD6 + C_SD5 + C_SD4 + C_SD3 + C_SD2 +
> C_SD1 +
> + C_SD0);
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, 0, 0x0F << 20);
> + mtk_hdmi_mask(hdmi, AIP_CTRL, 0,
> + SPDIF_EN | DSD_EN | HBRA_ON | CTS_CAL_N4 |
> + HBR_FROM_SPDIF | SPDIF_INTERNAL_MODULE);
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, 0, DSD_MUTE_DATA | LAYOUT1);
> +
> + if (hdmi->aud_param->aud_input_type == HDMI_AUD_INPUT_I2S) {
> + if (hdmi->aud_param->aud_codec ==
> HDMI_AUDIO_CODING_TYPE_DSD) {
> + mtk_hdmi_audio_dsd_config(
> + hdmi, hdmi->aud_param-
> >codec_params.channels,
> + 0);
> + mtk_hdmi_hw_i2s_ch_mapping(
> + hdmi, hdmi->aud_param-
> >codec_params.channels,
> + 1);
> + } else {
> + mtk_hdmi_i2s_data_fmt(hdmi,
> + hdmi->aud_param-
> >aud_i2s_fmt);
> + mtk_hdmi_i2s_sck_edge(hdmi, SCK_EDGE_RISE);
> + mtk_hdmi_i2s_cbit_order(hdmi, CBIT_ORDER_SAME);
> + mtk_hdmi_i2s_vbit(hdmi, VBIT_PCM);
> + mtk_hdmi_i2s_data_direction(hdmi,
> DATA_DIR_MSB);
> + mtk_hdmi_hw_audio_type(hdmi,
> HDMI_AUD_INPUT_I2S);
> + ChMapping = mtk_hdmi_get_i2s_ch_mapping(
> + hdmi, hdmi->aud_param-
> >aud_input_chan_type);
> + mtk_hdmi_hw_i2s_ch_mapping(
> + hdmi, hdmi->aud_param-
> >codec_params.channels,
> + ChMapping);
> + mtk_hdmi_hw_i2s_ch_swap(hdmi, LFE_CC_SWAP);
> + }
> + } else {
> + if ((hdmi->aud_param->aud_input_type ==
> HDMI_AUD_INPUT_SPDIF) &&
> + ((hdmi->aud_param->aud_codec ==
> + HDMI_AUDIO_CODING_TYPE_DTS_HD) ||
> + (hdmi->aud_param->aud_codec ==
> + HDMI_AUDIO_CODING_TYPE_MLP)) &&
> + (hdmi->aud_param->codec_params.sample_rate ==
> 768000)) {
> + mtk_hdmi_hbr_config(hdmi, false);
> + } else {
> + mtk_hdmi_hw_spdif_config(hdmi);
> + mtk_hdmi_hw_i2s_ch_mapping(hdmi, 2, 0);
> + }
> + }
> +
> + return 0;
> +}
> +
> +static int mtk_hdmi_aud_set_sw_ncts(struct mtk_hdmi *hdmi,
> + struct drm_display_mode
> *display_mode)
> +{
> + unsigned int sample_rate = hdmi->aud_param-
> >codec_params.sample_rate;
> +
> + mtk_hdmi_aud_on_off_hw_ncts(hdmi, false);
> +
> + mtk_hdmi_hw_aud_set_ncts(hdmi, sample_rate, display_mode-
> >clock);
> +
> + return 0;
> +}
> +
> +static inline void mtk_hdmi_hw_audio_input_enable(struct mtk_hdmi
> *hdmi,
> + unsigned int enable)
> +{
> + if (enable)
> + mtk_hdmi_mask(hdmi, AIP_CTRL, AUD_IN_EN, AUD_IN_EN);
> + else
> + mtk_hdmi_mask(hdmi, AIP_CTRL, 0x0 << AUD_IN_EN_SHIFT,
> + AUD_IN_EN);
> +}
> +
> +static void mtk_hdmi_aip_ctrl_init(struct mtk_hdmi *hdmi)
> +{
> + mtk_hdmi_mask(hdmi, AIP_CTRL,
> + AUD_SEL_OWRT | NO_MCLK_CTSGEN_SEL | CTS_REQ_EN,
> + AUD_SEL_OWRT | NO_MCLK_CTSGEN_SEL | MCLK_EN |
> CTS_REQ_EN);
> + mtk_hdmi_mask(hdmi, AIP_TPI_CTRL, TPI_AUDIO_LOOKUP_DIS,
> + TPI_AUDIO_LOOKUP_EN);
> +}
> +
> +static void mtk_hdmi_audio_reset(struct mtk_hdmi *hdmi, bool rst)
> +{
> + if (rst)
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL,
> + RST4AUDIO | RST4AUDIO_FIFO |
> RST4AUDIO_ACR,
> + RST4AUDIO | RST4AUDIO_FIFO |
> RST4AUDIO_ACR);
> + else
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, 0,
> + RST4AUDIO | RST4AUDIO_FIFO |
> RST4AUDIO_ACR);
> +}
> +
> +static int mtk_hdmi_aud_output_config(struct mtk_hdmi *hdmi,
> + struct drm_display_mode
> *display_mode)
> +{
> + mtk_hdmi_hw_aud_mute(hdmi);
> + mtk_hdmi_aud_enable_packet(hdmi, false);
> + mtk_hdmi_audio_reset(hdmi, true);
> + mtk_hdmi_aip_ctrl_init(hdmi);
> +
> + mtk_hdmi_aud_set_input(hdmi);
> +
> + mtk_hdmi_hw_aud_set_channel_status(
> + hdmi, hdmi->aud_param->codec_params.iec.status);
> +
> + mtk_hdmi_setup_audio_infoframe(hdmi);
> +
> + mtk_hdmi_hw_audio_input_enable(hdmi, true);
> +
> + mtk_hdmi_audio_reset(hdmi, false);
> +
> + mtk_hdmi_aud_set_sw_ncts(hdmi, display_mode);
> +
> + udelay(25);
> + mtk_hdmi_aud_on_off_hw_ncts(hdmi, true);
> +
> + mtk_hdmi_aud_enable_packet(hdmi, true);
> + mtk_hdmi_hw_aud_unmute(hdmi);
> + return 0;
> +}
> +
> +static int mtk_hdmi_setup_avi_infoframe(struct mtk_hdmi *hdmi,
> + struct drm_display_mode *mode)
> +{
> + struct hdmi_avi_infoframe frame;
> + u8 buffer[17];
> + ssize_t err;
> + bool is_hdmi2x_sink = false;
> +
> + if (hdmi->conn.display_info.hdmi.scdc.supported)
> + is_hdmi2x_sink =
> + true; //if support scdc, then the sink support
> HDMI2.0
> +
> + err = drm_hdmi_avi_infoframe_from_display_mode(&frame, &hdmi-
> >conn,
> + mode);
> +
> + if (err < 0) {
> + dev_err(hdmi->dev,
> + "Failed to get AVI infoframe from mode: %zd\n",
> err);
> + return err;
> + }
> +
> + frame.colorimetry = hdmi->colorimtery;
> + //no need, since we cannot support other extended colorimetry?
> + if (frame.colorimetry == HDMI_COLORIMETRY_EXTENDED)
> + frame.extended_colorimetry = hdmi-
> >extended_colorimetry;
> +
> + /* quantiation range:limited or full */
> + if (frame.colorspace == HDMI_COLORSPACE_RGB)
> + frame.quantization_range = hdmi->quantization_range;
> + else
> + frame.ycc_quantization_range = hdmi-
> >ycc_quantization_range;
> + err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer));
> +
> + if (err < 0) {
> + dev_err(hdmi->dev, "Failed to pack AVI infoframe:
> %zd\n", err);
> + return err;
> + }
> +
> + mtk_hdmi_hw_avi_infoframe(hdmi, buffer, sizeof(buffer));
> + return 0;
> +}
> +
> +static int mtk_hdmi_setup_spd_infoframe(struct mtk_hdmi *hdmi,
> + const char *vendor, const char
> *product)
> +{
> + struct hdmi_spd_infoframe frame;
> + u8 buffer[29];
> + ssize_t err;
> +
> + err = hdmi_spd_infoframe_init(&frame, vendor, product);
> + if (err < 0) {
> + dev_err(hdmi->dev, "Failed to initialize SPD infoframe:
> %zd\n",
> + err);
> + return err;
> + }
> +
> + err = hdmi_spd_infoframe_pack(&frame, buffer, sizeof(buffer));
> + if (err < 0) {
> + dev_err(hdmi->dev, "Failed to pack SDP infoframe:
> %zd\n", err);
> + return err;
> + }
> +
> + mtk_hdmi_hw_spd_infoframe(hdmi, buffer, sizeof(buffer));
> + return 0;
> +}
> +
> +static int mtk_hdmi_output_init(struct mtk_hdmi *hdmi)
> +{
> + struct hdmi_audio_param *aud_param = hdmi->aud_param;
> +
> + aud_param->aud_codec = HDMI_AUDIO_CODING_TYPE_PCM;
> + aud_param->aud_sampe_size = HDMI_AUDIO_SAMPLE_SIZE_16;
> + aud_param->aud_input_type = HDMI_AUD_INPUT_I2S;
> + aud_param->aud_i2s_fmt = HDMI_I2S_MODE_I2S_24BIT;
> + aud_param->aud_mclk = HDMI_AUD_MCLK_128FS;
> + aud_param->aud_input_chan_type = HDMI_AUD_CHAN_TYPE_2_0;
> +
> + hdmi->hpd = HDMI_PLUG_OUT;
> + hdmi->set_csp_depth = RGB444_8bit;
> + hdmi->csp = HDMI_COLORSPACE_RGB;
> + hdmi->color_depth = HDMI_8_BIT;
> + hdmi->colorimtery = HDMI_COLORIMETRY_NONE;
> + hdmi->extended_colorimetry =
> HDMI_EXTENDED_COLORIMETRY_RESERVED;
> + hdmi->quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
> + hdmi->ycc_quantization_range =
> HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
> +
> + return 0;
> +}
> +
> +static int mtk_hdmi_reset_colorspace_setting(struct mtk_hdmi *hdmi)
> +{
> + hdmi->set_csp_depth = RGB444_8bit;
> + hdmi->csp = HDMI_COLORSPACE_RGB;
> + hdmi->color_depth = HDMI_8_BIT;
> + hdmi->colorimtery = HDMI_COLORIMETRY_NONE;
> + hdmi->extended_colorimetry =
> HDMI_EXTENDED_COLORIMETRY_RESERVED;
> + hdmi->quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
> + hdmi->ycc_quantization_range =
> HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
> +
> + return 0;
> +}
> +
> +static void mtk_hdmi_audio_enable(struct mtk_hdmi *hdmi)
> +{
> + mtk_hdmi_aud_enable_packet(hdmi, true);
> + hdmi->audio_enable = true;
> +}
> +
> +static void mtk_hdmi_audio_disable(struct mtk_hdmi *hdmi)
> +{
> + mtk_hdmi_aud_enable_packet(hdmi, false);
> + hdmi->audio_enable = false;
> +}
> +
> +static int mtk_hdmi_audio_set_param(struct mtk_hdmi *hdmi,
> + struct hdmi_audio_param *param)
> +{
> + if (!hdmi->audio_enable)
> + return -EINVAL;
> +
> + memcpy(hdmi->aud_param, param, sizeof(*param));
> + return mtk_hdmi_aud_output_config(hdmi, &hdmi->mode);
> +}
> +
> +static void mtk_hdmi_change_video_resolution(struct mtk_hdmi *hdmi)
> +{
> + bool is_over_340M = false;
> + bool is_hdmi_sink = false;
> +
> + mtk_hdmi_hw_reset(hdmi);
> + mtk_hdmi_set_sw_hpd(hdmi, true);
> + udelay(2);
> +
> + mtk_hdmi_write(hdmi, HDCP_TOP_CTRL, 0x0);
> + mtk_hdmi_en_hdcp_reauth_int(hdmi, true);
> + mtk_hdmi_enable_hpd_pord_irq(hdmi, true);
> + mtk_hdmi_force_hdcp_hpd(hdmi);
> +
> + is_hdmi_sink = mtk_hdmi_sink_is_hdmi_device(hdmi);
> + mtk_hdmi_set_deep_color(hdmi, is_hdmi_sink);
> + mtk_hdmi_enable_hdmi_mode(hdmi, is_hdmi_sink);
> +
> + udelay(5);
> + mtk_hdmi_hw_vid_black(hdmi, true);
> + mtk_hdmi_hw_aud_mute(hdmi);
> + mtk_hdmi_hw_send_av_unmute(hdmi);
> +
> + mtk_hdmi_mask(hdmi, TOP_CFG01, NULL_PKT_VSYNC_HIGH_EN,
> + NULL_PKT_VSYNC_HIGH_EN | NULL_PKT_EN);
> +
> + is_over_340M = mtk_hdmi_tmds_over_340M(hdmi);
> + mtk_hdmi_enable_scrambling(hdmi, is_over_340M);
> + mtk_hdmi_high_tmds_clock_ratio(hdmi, is_over_340M);
> +
> + if (hdmi->csp == HDMI_COLORSPACE_YUV420)
> + mtk_hdmi_yuv420_downsample(hdmi, true);
> + else
> + mtk_hdmi_yuv420_downsample(hdmi, false);
> +
> + mtk_hdmi_480p_576p_setting(hdmi);
> +}
> +
> +static int mtk_hdmi_output_set_display_mode(struct mtk_hdmi *hdmi,
> + struct drm_display_mode
> *mode)
> +{
> + mtk_hdmi_change_video_resolution(hdmi);
> + mtk_hdmi_aud_output_config(hdmi, mode);
> +
> + return 0;
> +}
> +
> +static int mtk_hdmi_get_all_clk(struct mtk_hdmi *hdmi, struct
> device_node *np)
> +{
> + int i;
> +
> + for (i = 0; i < ARRAY_SIZE(mtk_hdmi_clk_names); i++) {
> + hdmi->clk[i] =
> + of_clk_get_by_name(np, mtk_hdmi_clk_names[i]);
> +
> + if (IS_ERR(hdmi->clk[i]))
> + return PTR_ERR(hdmi->clk[i]);
> + }
> +
> + return 0;
> +}
> +
> +static void mtk_hdmi_clk_enable(struct mtk_hdmi *hdmi)
> +{
> + int i;
> +
> + clk_set_parent(hdmi->clk[MTK_HDIM_HDCP_SEL],
> + hdmi->clk[MTK_HDMI_UNIVPLL_D4D8]);
> +
> + for (i = 0; i < ARRAY_SIZE(mtk_hdmi_clk_names); i++) {
> + if ((i == MTK_HDMI_UNIVPLL_D4D8) ||
> + (i == MTK_HDMI_CLK_UNIVPLL_D6D4) ||
> + (i == MTK_HDMI_CLK_MSDCPLL_D2) ||
> + (i == MTK_HDMI_CLK_HDMI_APB_SEL))
> + continue;
> + else
> + clk_prepare_enable(hdmi->clk[i]);
> + }
> +}
> +
> +static void mtk_hdmi_clk_disable(struct mtk_hdmi *hdmi)
> +{
> + int i;
> +
> + for (i = 0; i < ARRAY_SIZE(mtk_hdmi_clk_names); i++) {
> + if ((i == MTK_HDMI_UNIVPLL_D4D8) ||
> + (i == MTK_HDMI_CLK_UNIVPLL_D6D4) ||
> + (i == MTK_HDMI_CLK_MSDCPLL_D2) ||
> + (i == MTK_HDMI_CLK_HDMI_APB_SEL))
> + continue;
> + else
> + clk_disable_unprepare(hdmi->clk[i]);
> + }
> +}
> +
> +static void mtk_hdmi_hpd_event(enum HDMI_HPD_STATE hpd, struct
> device *dev)
> +{
> + struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
> +
> + if (hdmi && hdmi->bridge.encoder && hdmi->bridge.encoder->dev)
> + drm_helper_hpd_irq_event(hdmi->bridge.encoder->dev);
> +}
> +
> +enum HDMI_HPD_STATE mtk_hdmi_hpd_pord_status(struct mtk_hdmi *hdmi)
> +{
> + unsigned int hpd_status;
> + enum HDMI_HPD_STATE hpd;
> +
> + hpd_status = mtk_hdmi_read(hdmi, HPD_DDC_STATUS);
> + if ((hpd_status & (HPD_PIN_STA | PORD_PIN_STA)) ==
> + (HPD_PIN_STA | PORD_PIN_STA))
> + hpd = HDMI_PLUG_IN_AND_SINK_POWER_ON;
> + else if ((hpd_status & (HPD_PIN_STA | PORD_PIN_STA)) ==
> PORD_PIN_STA)
> + hpd = HDMI_PLUG_IN_ONLY;
> + else
> + hpd = HDMI_PLUG_OUT;
> +
> + return hpd;
> +}
> +
> +static irqreturn_t mtk_hdmi_isr(int irq, void *arg)
> +{
> + struct mtk_hdmi *hdmi = arg;
> + unsigned int int_status;
> +
> + int_status = mtk_hdmi_read(hdmi, TOP_INT_STA00);
> +
> + /* handle hpd interrupt */
> + if (int_status & (PORD_F_INT_STA | PORD_R_INT_STA |
> HTPLG_F_INT_STA |
> + HTPLG_R_INT_STA)) {
> + queue_delayed_work(hdmi->hdmi_wq, &hdmi->hpd_work,
> + msecs_to_jiffies(40));
> + mtk_hdmi_enable_hpd_pord_irq(hdmi, false);
> + mtk_hdmi_clr_htplg_pord_irq(hdmi);
> + }
> +
> + /*clear all tx irq*/
> + mtk_hdmi_clr_all_int_status(hdmi);
> +
> + return IRQ_HANDLED;
> +}
> +
> +void mtk_hdmi_hpd_work_handle(struct work_struct *data)
> +{
> + struct mtk_hdmi *hdmi =
> + container_of(data, struct mtk_hdmi, hpd_work.work);
> + enum HDMI_HPD_STATE hpd;
> +
> + hpd = mtk_hdmi_hpd_pord_status(hdmi);
> + if (hpd != hdmi->hpd) {
> + hdmi->hpd = hpd;
> + mtk_hdmi_hpd_event(hpd, hdmi->dev);
> + }
> +
> + mtk_hdmi_enable_hpd_pord_irq(hdmi, true);
> +}
> +
> +static int mtk_hdmi_init_workqueue(struct mtk_hdmi *hdmi)
> +{
> + hdmi->hdmi_wq = create_singlethread_workqueue("hdmitx_wq");
> + if (!hdmi->hdmi_wq)
> + return -ENOMEM;
> +
> + INIT_DELAYED_WORK(&hdmi->hpd_work, mtk_hdmi_hpd_work_handle);
> + return 0;
> +}
> +
> +static enum drm_connector_status hdmi_conn_detect(struct
> drm_connector *conn,
> + bool force)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_conn(conn);
> +
> + if (hdmi->hpd != HDMI_PLUG_IN_AND_SINK_POWER_ON &&
> + hdmi->hpd != HDMI_PLUG_IN_ONLY) {
> + hdmi->support_csp_depth = RGB444_8bit;
> + hdmi->set_csp_depth = RGB444_8bit;
> + hdmi->csp = HDMI_COLORSPACE_RGB;
> + hdmi->color_depth = HDMI_8_BIT;
> + hdmi->colorimtery = HDMI_COLORIMETRY_NONE;
> + hdmi->extended_colorimetry =
> HDMI_EXTENDED_COLORIMETRY_RESERVED;
> + hdmi->quantization_range =
> HDMI_QUANTIZATION_RANGE_DEFAULT;
> + hdmi->ycc_quantization_range =
> + HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
> + }
> +
> + return (hdmi->hpd != HDMI_PLUG_OUT) ?
> connector_status_connected :
> + connector_status_di
> sconnected;
> +}
> +
> +static void hdmi_conn_destroy(struct drm_connector *conn)
> +{
> + drm_connector_cleanup(conn);
> +}
> +
> +static int hdmi_conn_atomic_set_property(struct drm_connector *conn,
> + struct drm_connector_state
> *state,
> + struct drm_property *property,
> + uint64_t val)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_conn(conn);
> +
> + spin_lock(&hdmi->property_lock);
> +
> + if (property == hdmi->csp_depth_prop) {
> + if (val & (hdmi->support_csp_depth))
> + hdmi->set_csp_depth = val;
> + else {
> + spin_unlock(&hdmi->property_lock);
> + return -EINVAL;
> + }
> + } else {
> + spin_unlock(&hdmi->property_lock);
> + return -EINVAL;
> + }
> +
> + spin_unlock(&hdmi->property_lock);
> + return 0;
> +}
> +
> +static int
> +hdmi_conn_atomic_get_property(struct drm_connector *conn,
> + const struct drm_connector_state *state,
> + struct drm_property *property, uint64_t
> *val)
> +{
> + int ret = -EINVAL;
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_conn(conn);
> +
> + spin_lock(&hdmi->property_lock);
> +
> + if (property == hdmi->csp_depth_prop) {
> + *val = hdmi->support_csp_depth;
> + ret = 0;
> + }
> +
> + spin_unlock(&hdmi->property_lock);
> + return ret;
> +}
> +
> +unsigned int get_hdmi_colorspace_colorimetry(
> + struct drm_bridge *bridge, enum hdmi_colorspace *colorspace,
> + enum hdmi_colorimetry *colorimtery,
> + enum hdmi_extended_colorimetry *extended_colorimetry,
> + enum hdmi_quantization_range *quantization_range,
> + enum hdmi_ycc_quantization_range *ycc_quantization_range)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
> +
> + *colorspace = hdmi->csp;
> + *colorimtery = hdmi->colorimtery;
> + *extended_colorimetry = hdmi->extended_colorimetry;
> + *quantization_range = hdmi->quantization_range;
> + *ycc_quantization_range = hdmi->ycc_quantization_range;
> + //DPI cannot support BT2020 conversion, so no need
> extended_colorimetry information
> + return 0;
> +}
> +EXPORT_SYMBOL(get_hdmi_colorspace_colorimetry);
> +
> +static int mtk_hdmi_enable_disable(struct mtk_hdmi *hdmi, bool
> enable)
> +{
> + int ret;
> +
> + if (enable && !hdmi->hdmi_enabled) {
> + if (!hdmi->power_clk_enabled) {
> + /* power domain on */
> + ret = pm_runtime_get_sync(hdmi->dev);
> +
> + /* clk on */
> + mtk_hdmi_clk_enable(hdmi);
> + hdmi->power_clk_enabled = true;
> + }
> +
> + if (!hdmi->irq_registered) {
> + /* disable all tx interrupts */
> + mtk_hdmi_disable_all_int(hdmi);
> + /* request irq */
> + hdmi->hdmi_irq =
> + irq_of_parse_and_map(hdmi->dev-
> >of_node, 0);
> + ret = request_irq(hdmi->hdmi_irq, mtk_hdmi_isr,
> + IRQF_TRIGGER_HIGH, "hdmiirq",
> hdmi);
> + hdmi->irq_registered = true;
> + /* enable hpd interrupt */
> + mtk_hdmi_set_sw_hpd(hdmi, true);
> + mtk_hdmi_enable_hpd_pord_irq(hdmi, true);
> + }
> +
> + } else if (!enable && hdmi->hdmi_enabled) {
> + if (hdmi->irq_registered) {
> + /* free irq */
> + free_irq(hdmi->hdmi_irq, NULL);
> + hdmi->irq_registered = false;
> + }
> +
> + if (hdmi->power_clk_enabled) {
> + /* clk disable */
> + mtk_hdmi_clk_disable(hdmi);
> + /* power domain off */
> + ret = pm_runtime_put_sync(hdmi->dev);
> + hdmi->power_clk_enabled = false;
> + }
> + }
> +
> + hdmi->hdmi_enabled = enable;
> +
> + return 0;
> +}
> +
> +static const struct drm_prop_enum_list csp_depth_props[] = {
> + { __builtin_ffs(RGB444_8bit), "RGB444_8bit" },
> + { __builtin_ffs(RGB444_10bit), "RGB444_10bit" },
> + { __builtin_ffs(RGB444_12bit), "RGB444_10bit" },
> + { __builtin_ffs(RGB444_16bit), "RGB444_16bit" },
> + { __builtin_ffs(YCBCR444_8bit), "YCBCR444_8bit" },
> + { __builtin_ffs(YCBCR444_10bit), "YCBCR444_10bit" },
> + { __builtin_ffs(YCBCR444_12bit), "YCBCR444_12bit" },
> + { __builtin_ffs(YCBCR444_16bit), "YCBCR444_16bit" },
> + { __builtin_ffs(YCBCR422_8bit_NO_SUPPORT),
> "YCBCR422_8bit_NO_SUPPORT" },
> + { __builtin_ffs(YCBCR422_10bit_NO_SUPPORT),
> + "YCBCR422_10bit_NO_SUPPORT" },
> + { __builtin_ffs(YCBCR422_12bit), "YCBCR422_12bit" },
> + { __builtin_ffs(YCBCR422_16bit_NO_SUPPORT),
> + "YCBCR422_16bit_NO_SUPPORT" },
> + { __builtin_ffs(YCBCR420_8bit), "YCBCR420_8bit" },
> + { __builtin_ffs(YCBCR420_10bit), "YCBCR420_10bit" },
> + { __builtin_ffs(YCBCR420_12bit), "YCBCR420_12bit" },
> + { __builtin_ffs(YCBCR420_16bit), "YCBCR420_16bit" },
> +};
> +
> +static void mtk_hdmi_connetor_init_property(struct drm_device
> *drm_dev,
> + struct drm_connector *conn)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_conn(conn);
> + struct drm_property *prop;
> + /* ycbcr422 cannot support 8,10,16bit */
> + unsigned int supported_csp_depth_mask =
> + RGB444_8bit | RGB444_10bit | RGB444_12bit |
> RGB444_16bit |
> + YCBCR444_8bit | YCBCR444_10bit | YCBCR444_12bit |
> + YCBCR444_16bit | YCBCR422_12bit | YCBCR420_8bit |
> + YCBCR420_10bit | YCBCR420_12bit | YCBCR420_16bit;
> +
> + spin_lock_init(&hdmi->property_lock);
> +
> + /* create colorspace_depth bitmask property */
> + prop = drm_property_create_bitmask(
> + conn->dev, 0, "hdmi_colorspace_depth", csp_depth_props,
> + ARRAY_SIZE(csp_depth_props), supported_csp_depth_mask);
> +
> + if (!prop)
> + return;
> +
> + hdmi->csp_depth_prop = prop;
> + drm_object_attach_property(&conn->base, prop, 0);
> +
> + /* create mtk_hdmi_blob property, include EDID parser info,
> + * such as max_tmds_clock_rate, max_tmds_character_rate,
> support dolby vision
> + */
> + prop = drm_property_create(conn->dev,
> + DRM_MODE_PROP_BLOB |
> DRM_MODE_PROP_IMMUTABLE,
> + "HDMI_INFO", 0);
> + if (!prop)
> + return;
> +
> + hdmi->hdmi_info_blob = prop;
> + hdmi->hdmi_info_blob_ptr = NULL;
> + drm_object_attach_property(&conn->base, prop, 0);
> +}
> +
> +static void mtk_hdmi_convert_colorspace_depth(struct mtk_hdmi *hdmi)
> +{
> + switch (hdmi->set_csp_depth) {
> + case RGB444_8bit:
> + hdmi->csp = HDMI_COLORSPACE_RGB;
> + hdmi->color_depth = HDMI_8_BIT;
> + break;
> + case RGB444_10bit:
> + hdmi->csp = HDMI_COLORSPACE_RGB;
> + hdmi->color_depth = HDMI_10_BIT;
> + break;
> + case RGB444_12bit:
> + hdmi->csp = HDMI_COLORSPACE_RGB;
> + hdmi->color_depth = HDMI_12_BIT;
> + break;
> + case RGB444_16bit:
> + hdmi->csp = HDMI_COLORSPACE_RGB;
> + hdmi->color_depth = HDMI_16_BIT;
> + break;
> + case YCBCR444_8bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV444;
> + hdmi->color_depth = HDMI_8_BIT;
> + break;
> + case YCBCR444_10bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV444;
> + hdmi->color_depth = HDMI_10_BIT;
> + break;
> + case YCBCR444_12bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV444;
> + hdmi->color_depth = HDMI_12_BIT;
> + break;
> + case YCBCR444_16bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV444;
> + hdmi->color_depth = HDMI_16_BIT;
> + break;
> + case YCBCR422_12bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV422;
> + hdmi->color_depth = HDMI_12_BIT;
> + break;
> + case YCBCR420_8bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV420;
> + hdmi->color_depth = HDMI_8_BIT;
> + break;
> + case YCBCR420_10bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV420;
> + hdmi->color_depth = HDMI_10_BIT;
> + break;
> + case YCBCR420_12bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV420;
> + hdmi->color_depth = HDMI_12_BIT;
> + break;
> + case YCBCR420_16bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV420;
> + hdmi->color_depth = HDMI_16_BIT;
> + break;
> + default:
> +
> + hdmi->csp = HDMI_COLORSPACE_RGB;
> + hdmi->color_depth = HDMI_8_BIT;
> + }
> +}
> +
> +static int mtk_hdmi_conn_get_modes(struct drm_connector *conn)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_conn(conn);
> + struct edid *edid;
> + int ret;
> +
> + if (!hdmi->ddc_adpt)
> + return -ENODEV;
> +
> + edid = drm_get_edid(conn, hdmi->ddc_adpt);
> + if (!edid)
> + return -ENODEV;
> +
> + hdmi->dvi_mode = !drm_detect_hdmi_monitor(edid);
> +
> + drm_connector_update_edid_property(conn, edid);
> +
> + ret = drm_add_edid_modes(conn, edid);
> +
> + kfree(edid);
> +
> + return ret;
> +}
> +
> +static int mtk_hdmi_conn_mode_valid(struct drm_connector *conn,
> + struct drm_display_mode *mode)
> +{
> + if (mode->clock < 27000)
> + return MODE_CLOCK_LOW;
> + if (mode->clock > 594000)
> + return MODE_CLOCK_HIGH;
> +
> + return drm_mode_validate_size(mode, 0x1fff, 0x1fff);
> +}
> +
> +static struct drm_encoder *mtk_hdmi_conn_best_enc(struct
> drm_connector *conn)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_conn(conn);
> +
> + return hdmi->bridge.encoder;
> +}
> +
> +static const struct drm_connector_funcs mtk_hdmi_connector_funcs = {
> + .detect = hdmi_conn_detect,
> + .fill_modes = drm_helper_probe_single_connector_modes,
> + .destroy = hdmi_conn_destroy,
> + .reset = drm_atomic_helper_connector_reset,
> + .atomic_duplicate_state =
> drm_atomic_helper_connector_duplicate_state,
> + .atomic_destroy_state =
> drm_atomic_helper_connector_destroy_state,
> + .atomic_set_property = hdmi_conn_atomic_set_property,
> + .atomic_get_property = hdmi_conn_atomic_get_property,
> +};
> +
> +static const struct drm_connector_helper_funcs
> mtk_hdmi_connector_helper_funcs = {
> + .get_modes = mtk_hdmi_conn_get_modes,
> + .mode_valid = mtk_hdmi_conn_mode_valid,
> + .best_encoder = mtk_hdmi_conn_best_enc,
> +};
> +
> +/*
> + * Bridge callbacks
> + */
> +
> +static int mtk_hdmi_bridge_attach(struct drm_bridge *bridge,
> + enum drm_bridge_attach_flags flags)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
> + int ret;
> +
> + ret = drm_connector_init(bridge->encoder->dev, &hdmi->conn,
> + &mtk_hdmi_connector_funcs,
> + DRM_MODE_CONNECTOR_HDMIA);
> + if (ret)
> + return ret;
> +
> + drm_connector_helper_add(&hdmi->conn,
> &mtk_hdmi_connector_helper_funcs);
> +
> + hdmi->conn.polled = DRM_CONNECTOR_POLL_HPD;
> + hdmi->conn.interlace_allowed = false;
> + hdmi->conn.doublescan_allowed = false;
> + hdmi->conn.ycbcr_420_allowed = true;
> +
> + ret = drm_connector_attach_encoder(&hdmi->conn, bridge-
> >encoder);
> + if (ret)
> + return ret;
> +
> + mtk_hdmi_connetor_init_property(bridge->dev, &hdmi->conn);
> +
> + pm_runtime_enable(hdmi->dev);
> + mtk_hdmi_enable_disable(hdmi, true);
> +
> + return 0;
> +}
> +
> +static struct edid *mtk_hdmi_bridge_get_edid(struct drm_bridge
> *bridge,
> + struct drm_connector
> *connector)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
> + struct edid *edid;
> +
> + if (!hdmi->ddc_adpt)
> + return NULL;
> + edid = drm_get_edid(connector, hdmi->ddc_adpt);
> + if (!edid)
> + return NULL;
> + hdmi->dvi_mode = !drm_detect_monitor_audio(edid);
> + return edid;
> +}
> +
> +static bool mtk_hdmi_bridge_mode_fixup(struct drm_bridge *bridge,
> + const struct drm_display_mode
> *mode,
> + struct drm_display_mode
> *adjusted_mode)
> +{
> + return true;
> +}
> +
> +static void mtk_hdmi_bridge_disable(struct drm_bridge *bridge,
> + struct drm_bridge_state
> *old_bridge_state)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
> +
> + if (!hdmi->enabled)
> + return;
> +
> + mtk_hdmi_hw_send_av_mute(hdmi);
> + usleep_range(50000, 50050);
> + mtk_hdmi_hw_vid_black(hdmi, true);
> + mtk_hdmi_hw_aud_mute(hdmi);
> + mtk_hdmi_disable_hdcp_encrypt(hdmi);
> + usleep_range(50000, 50050);
> +
> + hdmi->enabled = false;
> +}
> +
> +static void mtk_hdmi_handle_plugged_change(struct mtk_hdmi *hdmi,
> bool plugged)
> +{
> + if (hdmi->plugged_cb && hdmi->codec_dev)
> + hdmi->plugged_cb(hdmi->codec_dev, plugged);
> +}
> +
> +static void mtk_hdmi_bridge_post_disable(struct drm_bridge *bridge,
> + struct drm_bridge_state
> *old_state)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
> +
> + if (!hdmi->powered)
> + return;
> +
> + phy_power_off(hdmi->phy);
> +
> + hdmi->powered = false;
> +
> + mtk_hdmi_reset_colorspace_setting(hdmi);
> +
> + /* signal the disconnect event to audio codec */
> + mtk_hdmi_handle_plugged_change(hdmi, false);
> +}
> +
> +static void
> +mtk_hdmi_bridge_mode_set(struct drm_bridge *bridge,
> + const struct drm_display_mode *mode,
> + const struct drm_display_mode *adjusted_mode)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
> +
> + drm_mode_copy(&hdmi->mode, adjusted_mode);
> +}
> +
> +static void mtk_hdmi_send_infoframe(struct mtk_hdmi *hdmi,
> + struct drm_display_mode *mode)
> +{
> + mtk_hdmi_setup_avi_infoframe(hdmi, mode);
> + mtk_hdmi_setup_spd_infoframe(hdmi, "mediatek", "On-chip HDMI");
> +}
> +
> +static void mtk_hdmi_bridge_pre_enable(struct drm_bridge *bridge,
> + struct drm_bridge_state
> *old_state)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
> +
> + mtk_hdmi_convert_colorspace_depth(hdmi);
> + mtk_hdmi_output_set_display_mode(hdmi, &hdmi->mode);
> + mtk_hdmi_send_infoframe(hdmi, &hdmi->mode);
> +
> + hdmi->powered = true;
> +}
> +
> +static void mtk_hdmi_bridge_enable(struct drm_bridge *bridge,
> + struct drm_bridge_state
> *old_state)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
> +
> + phy_power_on(hdmi->phy);
> +
> + mtk_hdmi_hw_vid_black(hdmi, false);
> + mtk_hdmi_hw_aud_unmute(hdmi);
> +
> + /* signal the connect event to audio codec */
> + mtk_hdmi_handle_plugged_change(hdmi, true);
> +
> + hdmi->enabled = true;
> +}
> +
> +static const struct drm_bridge_funcs mtk_hdmi_bridge_funcs = {
> + .attach = mtk_hdmi_bridge_attach,
> + .mode_fixup = mtk_hdmi_bridge_mode_fixup,
> + .atomic_disable = mtk_hdmi_bridge_disable,
> + .atomic_post_disable = mtk_hdmi_bridge_post_disable,
> + .mode_set = mtk_hdmi_bridge_mode_set,
> + .atomic_pre_enable = mtk_hdmi_bridge_pre_enable,
> + .atomic_enable = mtk_hdmi_bridge_enable,
> + .get_edid = mtk_hdmi_bridge_get_edid,
> +};
> +
> +static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
> + struct platform_device *pdev)
> +{
> + struct device *dev = &pdev->dev;
> + struct device_node *np = dev->of_node;
> + struct device_node *i2c_np;
> + struct resource *mem;
> + int ret;
> + struct mtk_hdmi_ddc *ddc;
> +
> + ret = mtk_hdmi_get_all_clk(hdmi, np);
> + if (ret)
> + return ret;
> +
> + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> + hdmi->regs = devm_ioremap_resource(dev, mem);
> + if (IS_ERR(hdmi->regs))
> + return PTR_ERR(hdmi->regs);
> +
> + i2c_np = of_parse_phandle(pdev->dev.of_node, "ddc-i2c-bus", 0);
> + if (!i2c_np) {
> + of_node_put(pdev->dev.of_node);
> + return -EINVAL;
> + }
> + of_node_put(pdev->dev.of_node);
> +
> + hdmi->ddc_adpt = of_find_i2c_adapter_by_node(i2c_np);
> + if (!hdmi->ddc_adpt)
> + return -EINVAL;
> +
> + ddc = hdmi_ddc_ctx_from_mtk_hdmi(hdmi);
> + ddc->regs = hdmi->regs;
> +
> + return 0;
> +}
> +
> +int mtk_hdmi_set_plugged_cb(struct mtk_hdmi *hdmi,
> hdmi_codec_plugged_cb fn,
> + struct device *codec_dev)
> +{
> + bool plugged;
> +
> + hdmi->plugged_cb = fn;
> + hdmi->codec_dev = codec_dev;
> + plugged = (hdmi->hpd == HDMI_PLUG_IN_AND_SINK_POWER_ON) ? true
> : false;
> + mtk_hdmi_handle_plugged_change(hdmi, plugged);
> +
> + return 0;
> +}
> +
> +/*
> + * HDMI audio codec callbacks
> + */
> +static int mtk_hdmi_audio_hook_plugged_cb(struct device *dev, void
> *data,
> + hdmi_codec_plugged_cb fn,
> + struct device *codec_dev)
> +{
> + struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
> +
> + if (!hdmi)
> + return -ENODEV;
> +
> + return mtk_hdmi_set_plugged_cb(hdmi, fn, codec_dev);
> +}
> +
> +static int mtk_hdmi_audio_hw_params(struct device *dev, void *data,
> + struct hdmi_codec_daifmt *daifmt,
> + struct hdmi_codec_params *params)
> +{
> + struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
> + struct hdmi_audio_param hdmi_params;
> + unsigned int chan = params->cea.channels;
> +
> + if (!hdmi->bridge.encoder)
> + return -ENODEV;
> +
> + switch (chan) {
> + case 2:
> + hdmi_params.aud_input_chan_type =
> HDMI_AUD_CHAN_TYPE_2_0;
> + break;
> + case 4:
> + hdmi_params.aud_input_chan_type =
> HDMI_AUD_CHAN_TYPE_4_0;
> + break;
> + case 6:
> + hdmi_params.aud_input_chan_type =
> HDMI_AUD_CHAN_TYPE_5_1;
> + break;
> + case 8:
> + hdmi_params.aud_input_chan_type =
> HDMI_AUD_CHAN_TYPE_7_1;
> + break;
> + default:
> + return -EINVAL;
> + }
> +
> + switch (params->sample_rate) {
> + case 32000:
> + case 44100:
> + case 48000:
> + case 88200:
> + case 96000:
> + case 176400:
> + case 192000:
> + break;
> + default:
> + return -EINVAL;
> + }
> +
> + switch (daifmt->fmt) {
> + case HDMI_I2S:
> + hdmi_params.aud_codec = HDMI_AUDIO_CODING_TYPE_PCM;
> + hdmi_params.aud_sampe_size = HDMI_AUDIO_SAMPLE_SIZE_16;
> + hdmi_params.aud_input_type = HDMI_AUD_INPUT_I2S;
> + hdmi_params.aud_i2s_fmt = HDMI_I2S_MODE_I2S_24BIT;
> + hdmi_params.aud_mclk = HDMI_AUD_MCLK_128FS;
> + break;
> + default:
> + return -EINVAL;
> + }
> +
> + memcpy(&hdmi_params.codec_params, params,
> + sizeof(hdmi_params.codec_params));
> +
> + mtk_hdmi_audio_set_param(hdmi, &hdmi_params);
> +
> + return 0;
> +}
> +
> +static int mtk_hdmi_audio_startup(struct device *dev, void *data)
> +{
> + struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
> +
> + mtk_hdmi_audio_enable(hdmi);
> +
> + return 0;
> +}
> +
> +static void mtk_hdmi_audio_shutdown(struct device *dev, void *data)
> +{
> + struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
> +
> + mtk_hdmi_audio_disable(hdmi);
> +}
> +
> +static int mtk_hdmi_audio_mute(struct device *dev, void *data, bool
> enable,
> + int direction)
> +{
> + struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
> +
> + if (direction != SNDRV_PCM_STREAM_PLAYBACK)
> + return 0;
> +
> + if (enable)
> + mtk_hdmi_hw_aud_mute(hdmi);
> + else
> + mtk_hdmi_hw_aud_unmute(hdmi);
> +
> + return 0;
> +}
> +
> +static int mtk_hdmi_audio_get_eld(struct device *dev, void *data,
> uint8_t *buf,
> + size_t len)
> +{
> + struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
> + struct drm_connector *conn = &hdmi->conn;
> + unsigned int i;
> +
> + dev_dbg(dev, "ELD data start\n");
> + for (i = 0; i < 128; i += 8) {
> + dev_dbg(dev, "%2x %2x %2x %2x %2x %2x %2x %2x\n", conn-
> >eld[i],
> + conn->eld[i + 1], conn->eld[i + 2], conn->eld[i
> + 3],
> + conn->eld[i + 4], conn->eld[i + 5], conn->eld[i
> + 6],
> + conn->eld[i + 7]);
> + }
> + dev_dbg(dev, "ELD data end\n");
> +
> + memcpy(buf, hdmi->conn.eld, min(sizeof(hdmi->conn.eld), len));
> +
> + return 0;
> +}
> +
> +static const struct hdmi_codec_ops mtk_hdmi_audio_codec_ops = {
> + .hw_params = mtk_hdmi_audio_hw_params,
> + .audio_startup = mtk_hdmi_audio_startup,
> + .audio_shutdown = mtk_hdmi_audio_shutdown,
> + .mute_stream = mtk_hdmi_audio_mute,
> + .get_eld = mtk_hdmi_audio_get_eld,
> + .hook_plugged_cb = mtk_hdmi_audio_hook_plugged_cb,
> +};
> +
> +static void mtk_hdmi_register_audio_driver(struct device *dev)
> +{
> + struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
> + struct hdmi_codec_pdata codec_data = {
> + .ops = &mtk_hdmi_audio_codec_ops,
> + .max_i2s_channels = 8,
> + .i2s = 1,
> + .data = hdmi,
> + };
> + struct platform_device *pdev;
> +
> + pdev = platform_device_register_data(dev, HDMI_CODEC_DRV_NAME,
> + PLATFORM_DEVID_AUTO,
> &codec_data,
> + sizeof(codec_data));
> + if (IS_ERR(pdev))
> + return;
> +}
> +
> +static int mtk_drm_hdmi_probe(struct platform_device *pdev)
> +{
> + struct mtk_hdmi *hdmi;
> + struct device *dev = &pdev->dev;
> + int ret;
> +
> + hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL);
> + if (!hdmi)
> + return -ENOMEM;
> +
> + hdmi->dev = dev;
> +
> + hdmi->aud_param =
> + devm_kzalloc(dev, sizeof(struct hdmi_audio_param),
> GFP_KERNEL);
> + if (!hdmi->aud_param)
> + return -ENOMEM;
> +
> + hdmi->phy = devm_phy_get(dev, "hdmi");
> + if (IS_ERR(hdmi->phy)) {
> + ret = PTR_ERR(hdmi->phy);
> + return ret;
return PTR_ERR(hdmi->phy);
> + }
> +
> + ret = mtk_hdmi_dt_parse_pdata(hdmi, pdev);
> + if (ret)
> + return ret;
> +
> + platform_set_drvdata(pdev, hdmi);
> +
> + ret = mtk_hdmi_output_init(hdmi);
> + if (ret)
> + return ret;
> +
> + mtk_hdmi_register_audio_driver(dev);
> +
> + mtk_hdmi_init_workqueue(hdmi);
> +
> + hdmi->bridge.funcs = &mtk_hdmi_bridge_funcs;
> + hdmi->bridge.of_node = pdev->dev.of_node;
> + drm_bridge_add(&hdmi->bridge);
> +
> + return 0;
> +}
> +
> +static int mtk_drm_hdmi_remove(struct platform_device *pdev)
> +{
> + struct mtk_hdmi *hdmi = platform_get_drvdata(pdev);
> +
> + drm_bridge_remove(&hdmi->bridge);
> + mtk_hdmi_clk_disable(hdmi);
> +
> + return 0;
> +}
> +
> +#ifdef CONFIG_PM_SLEEP
use __maybe_unused
> +static int mtk_hdmi_suspend(struct device *dev)
> +{
> + struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
> +#ifdef CONFIG_DRM_MEDIATEK_HDMI_SUSPEND_LOW_POWER
> +
> + if (hdmi->power_clk_enabled) {
> + mtk_hdmi_clk_disable(hdmi);
> + pm_runtime_put_sync(hdmi->dev);
> + hdmi->power_clk_enabled = false;
> + }
> +
> + dev_dbg(dev, "hdmi suspend success!\n");
> +
> + return 0;
> +
> +#else
> +
> + device_set_wakeup_path(dev);
> + dev_dbg(dev, "hdmi suspend success!\n");
> +
> + return 0;
> +#endif
> +}
> +
> +static int mtk_hdmi_resume(struct device *dev)
> +{
> + struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
> +#ifdef CONFIG_DRM_MEDIATEK_HDMI_SUSPEND_LOW_POWER
> +
> + if (!hdmi->power_clk_enabled) {
> + pm_runtime_get_sync(hdmi->dev);
> +
> + mtk_hdmi_clk_enable(hdmi);
> + hdmi->power_clk_enabled = true;
> + }
> +
> + dev_dbg(dev, "hdmi resume success!\n");
> + return 0;
> +
> +#else
> +
> + mtk_hdmi_clk_enable(hdmi);
> +
> + dev_dbg(dev, "hdmi resume success!\n");
> +
> + return 0;
> +#endif
> +}
> +#endif
> +static SIMPLE_DEV_PM_OPS(mtk_hdmi_pm_ops, mtk_hdmi_suspend,
> mtk_hdmi_resume);
> +
> +static const struct of_device_id mtk_drm_hdmi_of_ids[] = {
> + {
> + .compatible = "mediatek,mt8195-hdmi",
> + },
> + {}
> +};
> +
> +static struct platform_driver mtk_hdmi_mt8195_driver = {
> + .probe = mtk_drm_hdmi_probe,
> + .remove = mtk_drm_hdmi_remove,
> + .driver = {
> + .name = "mediatek-drm-mt8195-hdmi",
> + .of_match_table = mtk_drm_hdmi_of_ids,
> + .pm = &mtk_hdmi_pm_ops,
> + },
> +};
> +
> +static struct platform_driver *const mtk_hdmi_drivers[] = {
> + &mtk_hdmi_mt8195_ddc_driver,
> + &mtk_hdmi_mt8195_driver,
> +};
> +
> +static int __init mtk_hdmitx_init(void)
> +{
> + return platform_register_drivers(mtk_hdmi_drivers,
> + ARRAY_SIZE(mtk_hdmi_drivers));
> +}
> +
> +static void __exit mtk_hdmitx_exit(void)
> +{
> + platform_unregister_drivers(mtk_hdmi_drivers,
> + ARRAY_SIZE(mtk_hdmi_drivers));
> +}
> +
> +module_init(mtk_hdmitx_init);
> +module_exit(mtk_hdmitx_exit);
> +
> +MODULE_AUTHOR("Can Zeng <can.zeng@xxxxxxxxxxxx>");
> +MODULE_DESCRIPTION("MediaTek HDMI Driver");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.h
> b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.h
> new file mode 100644
> index 000000000000..7d8427b6abed
> --- /dev/null
> +++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.h
> @@ -0,0 +1,147 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (c) 2019 MediaTek Inc.
> + */
> +
> +#ifndef _MTK_HDMI_CTRL_H
> +#define _MTK_HDMI_CTRL_H
> +
> +#include <linux/hdmi.h>
> +#include <drm/drm_bridge.h>
> +#include <drm/drm_atomic_helper.h>
> +#include <drm/drm_crtc.h>
> +#include <drm/drm_crtc_helper.h>
> +#include <drm/drm_edid.h>
> +#include <linux/platform_device.h>
> +#include <linux/i2c.h>
> +#include <sound/hdmi-codec.h>
> +#include <linux/clk.h>
> +#include <linux/mutex.h>
> +
> +#define RGB444_8bit BIT(0)
> +#define RGB444_10bit BIT(1)
> +#define RGB444_12bit BIT(2)
> +#define RGB444_16bit BIT(3)
> +#define YCBCR444_8bit BIT(4)
> +#define YCBCR444_10bit BIT(5)
> +#define YCBCR444_12bit BIT(6)
> +#define YCBCR444_16bit BIT(7)
> +#define YCBCR422_8bit_NO_SUPPORT BIT(8)
> +#define YCBCR422_10bit_NO_SUPPORT BIT(9)
> +#define YCBCR422_12bit BIT(10)
> +#define YCBCR422_16bit_NO_SUPPORT BIT(11)
> +#define YCBCR420_8bit BIT(12)
> +#define YCBCR420_10bit BIT(13)
> +#define YCBCR420_12bit BIT(14)
> +#define YCBCR420_16bit BIT(15)
> +
> +enum hdmi_color_depth { HDMI_8_BIT, HDMI_10_BIT, HDMI_12_BIT,
> HDMI_16_BIT };
> +
> +enum mtk_hdmi_clk_id {
> + MTK_HDMI_CLK_UNIVPLL_D6D4,
> + MTK_HDMI_CLK_MSDCPLL_D2,
> + MTK_HDMI_CLK_HDMI_APB_SEL,
> + MTK_HDMI_UNIVPLL_D4D8,
> + MTK_HDIM_HDCP_SEL,
> + MTK_HDMI_HDCP_24M_SEL,
> + MTK_HDMI_VPP_SPLIT_HDMI,
> + MTK_HDMI_CLK_COUNT,
> +};
> +
> +struct mtk_hdmi_edid {
> + unsigned char edid[EDID_LENGTH * 4];
> + unsigned char blk_num;
> +};
> +
> +enum HDMI_HPD_STATE {
> + HDMI_PLUG_OUT = 0,
> + HDMI_PLUG_IN_AND_SINK_POWER_ON,
> + HDMI_PLUG_IN_ONLY,
> +};
> +
> +struct hdmi_audio_param;
> +
> +struct mtk_hdmi {
> + struct drm_bridge bridge;
> + struct drm_connector conn;
> + struct device *dev;
> + struct phy *phy;
> + struct device *cec_dev;
> + struct cec_notifier *notifier;
> + struct i2c_adapter *ddc_adpt;
> + struct clk *clk[MTK_HDMI_CLK_COUNT];
> + struct drm_display_mode mode;
> + struct mtk_edid_params *edid_params;
> + struct mtk_hdmi_sink_av_cap *sink_avcap;
> + bool dvi_mode;
> + u32 max_hdisplay;
> + u32 max_vdisplay;
> + void __iomem *regs;
> + spinlock_t property_lock;
> + struct drm_property *hdmi_info_blob;
> + struct drm_property_blob *hdmi_info_blob_ptr;
> + struct drm_property *csp_depth_prop;
> + uint64_t support_csp_depth;
> + uint64_t set_csp_depth;
> + enum hdmi_colorspace csp;
> + enum hdmi_color_depth color_depth;
> + enum hdmi_colorimetry colorimtery;
> + enum hdmi_extended_colorimetry extended_colorimetry;
> + enum hdmi_quantization_range quantization_range;
> + enum hdmi_ycc_quantization_range ycc_quantization_range;
> + struct mtk_hdmi_edid raw_edid;
> +
> + struct hdmi_audio_param *aud_param;
> + bool audio_enable;
> + struct device *codec_dev;
> + hdmi_codec_plugged_cb plugged_cb;
> +
> + bool powered;
> + bool enabled;
> + unsigned int hdmi_irq;
> + enum HDMI_HPD_STATE hpd;
> + struct workqueue_struct *hdmi_wq;
> + struct delayed_work hpd_work;
> + struct delayed_work hdr10_delay_work;
> + struct delayed_work hdr10vsif_delay_work;
> + struct mutex hdr_mutex;
> +
> + bool hdmi_enabled;
> + bool power_clk_enabled;
> + bool irq_registered;
> +};
> +
> +extern struct platform_driver mtk_hdmi_mt8195_ddc_driver;
> +
> +#if defined(CONFIG_DRM_MEDIATEK_HDMI)
> || \
> + defined(CONFIG_DRM_MEDIATEK_HDMI_MODULE)
> +unsigned int get_hdmi_colorspace_colorimetry(
> + struct drm_bridge *bridge, enum hdmi_colorspace *colorspace,
> + enum hdmi_colorimetry *colorimtery,
> + enum hdmi_extended_colorimetry *extended_colorimetry,
> + enum hdmi_quantization_range *quantization_range,
> + enum hdmi_ycc_quantization_range *ycc_quantization_range);
> +#else
> +inline unsigned int get_hdmi_colorspace_colorimetry(
> + struct drm_bridge *bridge, enum hdmi_colorspace *colorspace,
> + enum hdmi_colorimetry *colorimtery,
> + enum hdmi_extended_colorimetry *extended_colorimetry,
> + enum hdmi_quantization_range *quantization_range,
> + enum hdmi_ycc_quantization_range *ycc_quantization_range)
> +{
> + return 0;
> +}
> +#endif
> +
> +/* struct mtk_hdmi_info is used to propagate blob property to
> userspace */
> +struct mtk_hdmi_info {
> + unsigned short edid_sink_colorimetry;
> + unsigned char edid_sink_rgb_color_bit;
> + unsigned char edid_sink_ycbcr_color_bit;
> + unsigned char ui1_sink_dc420_color_bit;
> + unsigned short edid_sink_max_tmds_clock;
> + unsigned short edid_sink_max_tmds_character_rate;
> + unsigned char edid_sink_support_dynamic_hdr;
> +};
> +
> +#endif /* _MTK_HDMI_CTRL_H */
> diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_ddc.c
> b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_ddc.c
> new file mode 100644
> index 000000000000..e07f1a0aeee4
> --- /dev/null
> +++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_ddc.c
> @@ -0,0 +1,541 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2019 MediaTek Inc.
> + */
> +
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/time.h>
> +#include <linux/delay.h>
> +#include <linux/errno.h>
> +#include <linux/err.h>
> +#include <linux/platform_device.h>
> +#include <linux/slab.h>
> +#include <linux/io.h>
> +#include <linux/iopoll.h>
> +#include <linux/of_address.h>
> +#include <linux/of_irq.h>
> +#include <linux/of_platform.h>
> +#include <linux/semaphore.h>
> +
> +#include "mtk_mt8195_hdmi_ddc.h"
> +#include "mtk_mt8195_hdmi_regs.h"
> +#include "mtk_mt8195_hdmi.h"
> +
> +#define EDID_ID 0x50
> +#define DDC2_CLOK 572 /* BIM=208M/(v*4) = 90Khz */
> +#define DDC2_CLOK_EDID 832 /* BIM=208M/(v*4) = 62.5Khz */
> +
> +enum SIF_BIT_T_HDMI {
> + SIF_8_BIT_HDMI, /* /< [8 bits data address.] */
> + SIF_16_BIT_HDMI, /* /< [16 bits data address.] */
> +};
> +
> +enum SIF_BIT_T {
> + SIF_8_BIT, /* /< [8 bits data address.] */
> + SIF_16_BIT, /* /< [16 bits data address.] */
> +};
> +
> +static inline bool mtk_ddc_readbit(struct mtk_hdmi_ddc *ddc,
> unsigned short reg,
> + unsigned int offset)
> +{
> + return (readl(ddc->regs + reg) & offset) ? true : false;
> +}
> +
> +static inline unsigned int mtk_ddc_read(struct mtk_hdmi_ddc *ddc,
> + unsigned short reg)
> +{
> + return readl(ddc->regs + reg);
> +}
> +
> +static inline void mtk_ddc_write(struct mtk_hdmi_ddc *ddc, unsigned
> short reg,
> + unsigned int val)
> +{
> + writel(val, ddc->regs + reg);
> +}
> +
> +static inline void mtk_ddc_mask(struct mtk_hdmi_ddc *ddc, unsigned
> int reg,
> + unsigned int val, unsigned int mask)
> +{
> + unsigned int tmp;
> +
> + tmp = readl(ddc->regs + reg) & ~mask;
> + tmp |= (val & mask);
> + writel(tmp, ddc->regs + reg);
> +}
> +
> +static void hdmi_ddc_request(struct mtk_hdmi_ddc *ddc)
> +{
> + mtk_ddc_mask(ddc, HDCP2X_POL_CTRL, HDCP2X_DIS_POLL_EN,
> + HDCP2X_DIS_POLL_EN);
> +}
> +
> +static void DDC_WR_ONE(struct mtk_hdmi_ddc *ddc, unsigned int
> addr_id,
> + unsigned int offset_id, unsigned char wr_data)
> +{
> + unsigned int i;
> +
> + if (mtk_ddc_read(ddc, HDCP2X_DDCM_STATUS) & DDC_I2C_BUS_LOW) {
> + mtk_ddc_mask(ddc, DDC_CTRL, (CLOCK_SCL <<
> DDC_CMD_SHIFT),
> + DDC_CMD);
> + udelay(250);
> + }
> + mtk_ddc_mask(ddc, HPD_DDC_CTRL, DDC2_CLOK <<
> DDC_DELAY_CNT_SHIFT,
> + DDC_DELAY_CNT);
> + mtk_ddc_write(ddc, SI2C_CTRL, SI2C_ADDR_READ <<
> SI2C_ADDR_SHIFT);
> + mtk_ddc_mask(ddc, SI2C_CTRL, wr_data << SI2C_WDATA_SHIFT,
> SI2C_WDATA);
> + mtk_ddc_mask(ddc, SI2C_CTRL, SI2C_WR, SI2C_WR);
> +
> + mtk_ddc_write(ddc, DDC_CTRL,
> + (SEQ_WRITE_REQ_ACK << DDC_CMD_SHIFT) +
> + (1 << DDC_DIN_CNT_SHIFT) +
> + (offset_id << DDC_OFFSET_SHIFT) +
> (addr_id << 1));
> +
> + for (i = 0; i < 5; i++)
> + udelay(200);
> +
> + if ((mtk_ddc_read(ddc, HDCP2X_DDCM_STATUS) &
> + (DDC_I2C_NO_ACK | DDC_I2C_BUS_LOW))) {
> + if (mtk_ddc_read(ddc, HDCP2X_DDCM_STATUS) &
> DDC_I2C_BUS_LOW) {
> + mtk_ddc_mask(ddc, DDC_CTRL,
> + (CLOCK_SCL << DDC_CMD_SHIFT),
> DDC_CMD);
> + udelay(250);
> + }
> + }
> +}
> +
> +static unsigned char
> +_DDCMRead_hdmi(struct mtk_hdmi_ddc *ddc, unsigned char
> ucCurAddrMode,
> + unsigned int u4ClkDiv, unsigned char ucDev, unsigned int
> u4Addr,
> + enum SIF_BIT_T_HDMI ucAddrType, unsigned char *pucValue,
> + unsigned int u4Count)
> +{
> + unsigned int i, temp_length, loop_counter, temp_ksvlist,
> device_n;
> + unsigned int ucReadCount, ucIdx;
> + unsigned long DdcStartTime, DdcEndTime, DdcTimeOut;
> +
> + if ((pucValue == NULL) || (u4Count == 0) || (u4ClkDiv == 0))
> + return 0;
> +
> + ucIdx = 0;
> + if (mtk_ddc_read(ddc, HDCP2X_DDCM_STATUS) & DDC_I2C_BUS_LOW) {
> + mtk_ddc_mask(ddc, DDC_CTRL, (CLOCK_SCL <<
> DDC_CMD_SHIFT),
> + DDC_CMD);
> + udelay(250);
> + }
> +
> + mtk_ddc_mask(ddc, DDC_CTRL, (CLEAR_FIFO << DDC_CMD_SHIFT),
> DDC_CMD);
> +
> + if (u4Addr == 0x43) {
> + mtk_ddc_write(ddc, DDC_CTRL,
> + (SEQ_READ_NO_ACK << DDC_CMD_SHIFT) +
> + (u4Count << DDC_DIN_CNT_SHIFT) +
> + (u4Addr << DDC_OFFSET_SHIFT) +
> + (ucDev << 1));
> + udelay(250);
> + udelay(250);
> + udelay(200);
why use three udelay()?
> +
> + if (u4Count > 10)
> + temp_ksvlist = 10;
> + else
> + temp_ksvlist = u4Count;
> +
> + for (ucIdx = 0; ucIdx < temp_ksvlist; ucIdx++) {
> + mtk_ddc_write(ddc, SI2C_CTRL,
> + (SI2C_ADDR_READ <<
> SI2C_ADDR_SHIFT) +
> + SI2C_RD);
> + mtk_ddc_write(ddc, SI2C_CTRL,
> + (SI2C_ADDR_READ <<
> SI2C_ADDR_SHIFT) +
> + SI2C_CONFIRM_READ);
> +
> + pucValue[ucIdx] = (mtk_ddc_read(ddc,
> HPD_DDC_STATUS) &
> + DDC_DATA_OUT) >>
> + DDC_DATA_OUT_SHIFT;
> + udelay(100);
> + }
> +
> + if (u4Count == temp_ksvlist)
> + return (ucIdx + 1);
> +
> + udelay(250);
> + udelay(250);
> +
> + if (u4Count / 5 == 3)
> + device_n = 5;
> + else
> + device_n = 10;
> +
> + for (ucIdx = 10; ucIdx < (10 + device_n); ucIdx++) {
> + mtk_ddc_write(ddc, SI2C_CTRL,
> + (SI2C_ADDR_READ <<
> SI2C_ADDR_SHIFT) +
> + SI2C_RD);
> + mtk_ddc_write(ddc, SI2C_CTRL,
> + (SI2C_ADDR_READ <<
> SI2C_ADDR_SHIFT) +
> + SI2C_CONFIRM_READ);
> +
> + pucValue[ucIdx] = (mtk_ddc_read(ddc,
> HPD_DDC_STATUS) &
> + DDC_DATA_OUT) >>
> + DDC_DATA_OUT_SHIFT;
> + udelay(100);
> + }
> +
> + if (u4Count == (10 + device_n))
> + return (ucIdx + 1);
> +
> + udelay(250);
> + udelay(250);
> +
> + if (u4Count / 5 == 5)
> + device_n = 5;
> + else
> + device_n = 10;
> +
> + for (ucIdx = 20; ucIdx < (20 + device_n); ucIdx++) {
> + mtk_ddc_write(ddc, SI2C_CTRL,
> + (SI2C_ADDR_READ <<
> SI2C_ADDR_SHIFT) +
> + SI2C_RD);
> + mtk_ddc_write(ddc, SI2C_CTRL,
> + (SI2C_ADDR_READ <<
> SI2C_ADDR_SHIFT) +
> + SI2C_CONFIRM_READ);
> +
> + pucValue[ucIdx] = (mtk_ddc_read(ddc,
> HPD_DDC_STATUS) &
> + DDC_DATA_OUT) >>
> + DDC_DATA_OUT_SHIFT;
> + udelay(100);
> + }
> +
> + if (u4Count == (20 + device_n))
> + return (ucIdx + 1);
> +
> + udelay(250);
> + udelay(250);
> +
> + if (u4Count / 5 == 7)
> + device_n = 5;
> + else
> + device_n = 10;
> +
> + for (ucIdx = 30; ucIdx < (30 + device_n); ucIdx++) {
> + mtk_ddc_write(ddc, SI2C_CTRL,
> + (SI2C_ADDR_READ <<
> SI2C_ADDR_SHIFT) +
> + SI2C_RD);
> + mtk_ddc_write(ddc, SI2C_CTRL,
> + (SI2C_ADDR_READ <<
> SI2C_ADDR_SHIFT) +
> + SI2C_CONFIRM_READ);
> +
> + pucValue[ucIdx] = (mtk_ddc_read(ddc,
> HPD_DDC_STATUS) &
> + DDC_DATA_OUT) >>
> + DDC_DATA_OUT_SHIFT;
> + udelay(100);
> + }
> +
> + if (u4Count == (30 + device_n))
> + return (ucIdx + 1);
> +
> + udelay(250);
> + udelay(250);
> +
> + for (ucIdx = 40; ucIdx < (40 + 5); ucIdx++) {
> + mtk_ddc_write(ddc, SI2C_CTRL,
> + (SI2C_ADDR_READ <<
> SI2C_ADDR_SHIFT) +
> + SI2C_RD);
> + mtk_ddc_write(ddc, SI2C_CTRL,
> + (SI2C_ADDR_READ <<
> SI2C_ADDR_SHIFT) +
> + SI2C_CONFIRM_READ);
> +
> + pucValue[ucIdx] = (mtk_ddc_read(ddc,
> HPD_DDC_STATUS) &
> + DDC_DATA_OUT) >>
> + DDC_DATA_OUT_SHIFT;
> + udelay(100);
> + }
> +
> + if (u4Count == 45)
> + return (ucIdx + 1);
> + } else {
> + if (u4Count >= 16) {
> + temp_length = 16;
> + loop_counter =
> + u4Count / 16 + ((u4Count % 16 == 0) ? 0
> : 1);
> + } else {
> + temp_length = u4Count;
> + loop_counter = 1;
> + }
> + if (ucDev >= EDID_ID) {
> + if (u4ClkDiv < DDC2_CLOK_EDID)
> + u4ClkDiv = DDC2_CLOK_EDID;
> + }
> + mtk_ddc_mask(ddc, HPD_DDC_CTRL, u4ClkDiv <<
> DDC_DELAY_CNT_SHIFT,
> + DDC_DELAY_CNT);
> + for (i = 0; i < loop_counter; i++) {
> + if ((i == (loop_counter - 1)) && (i != 0) &&
> + (u4Count % 16))
> + temp_length = u4Count % 16;
> +
> + if (ucDev > EDID_ID) {
> + mtk_ddc_mask(ddc, SCDC_CTRL,
> + (ucDev - EDID_ID)
> + <<
> DDC_SEGMENT_SHIFT,
> + DDC_SEGMENT);
> + mtk_ddc_write(
> + ddc, DDC_CTRL,
> + (ENH_READ_NO_ACK <<
> DDC_CMD_SHIFT) +
> + (temp_length
> + << DDC_DIN_CNT_SHIFT)
> +
> + ((u4Addr + i *
> temp_length)
> + << DDC_OFFSET_SHIFT) +
> + (EDID_ID << 1));
> + } else {
> + mtk_ddc_write(
> + ddc, DDC_CTRL,
> + (SEQ_READ_NO_ACK <<
> DDC_CMD_SHIFT) +
> + (temp_length
> + << DDC_DIN_CNT_SHIFT)
> +
> + ((u4Addr + ((u4Addr ==
> 0x43) ?
> +
> 0 :
> +
> (i * 16)))
> + << DDC_OFFSET_SHIFT) +
> + (ucDev << 1));
> + }
> + mdelay(2);
> + DdcStartTime = jiffies;
> + DdcTimeOut = temp_length + 5;
> + DdcEndTime = DdcStartTime + (DdcTimeOut)*HZ /
> 1000;
> + while (1) {
> + if ((mtk_ddc_read(ddc, HPD_DDC_STATUS)
> &
> + DDC_I2C_IN_PROG) == 0)
> + break;
> +
> + if (time_after(jiffies, DdcEndTime)) {
> + pr_info("[HDMI][DDC] error:
> time out\n");
> + return 0;
> + }
> + mdelay(1);
> + }
> + if ((mtk_ddc_read(ddc, HDCP2X_DDCM_STATUS) &
> + (DDC_I2C_NO_ACK | DDC_I2C_BUS_LOW))) {
> + if (mtk_ddc_read(ddc,
> HDCP2X_DDCM_STATUS) &
> + DDC_I2C_BUS_LOW) {
> + mtk_ddc_mask(ddc, DDC_CTRL,
> + (CLOCK_SCL
> + <<
> DDC_CMD_SHIFT),
> + DDC_CMD);
> + udelay(250);
> + }
> + return 0;
> + }
> + for (ucIdx = 0; ucIdx < temp_length; ucIdx++) {
> + mtk_ddc_write(ddc, SI2C_CTRL,
> + (SI2C_ADDR_READ
> + << SI2C_ADDR_SHIFT) +
> + SI2C_RD);
> + mtk_ddc_write(ddc, SI2C_CTRL,
> + (SI2C_ADDR_READ
> + << SI2C_ADDR_SHIFT) +
> + SI2C_CONFIRM_READ
> );
> +
> + pucValue[i * 16 + ucIdx] =
> + (mtk_ddc_read(ddc,
> HPD_DDC_STATUS) &
> + DDC_DATA_OUT) >>
> + DDC_DATA_OUT_SHIFT;
> + /*
> + * when reading edid, if hdmi module
> been reset,
> + * ddc will fail and it's
> + *speed will be set to 400.
> + */
> + if (((mtk_ddc_read(ddc, HPD_DDC_CTRL)
> >> 16) &
> + 0xFFFF) < DDC2_CLOK)
> + return 0;
> +
> + ucReadCount = i * 16 + ucIdx + 1;
> + }
> + }
> + return ucReadCount;
> + }
> + return 0;
> +}
> +
> +static unsigned char vDDCRead(struct mtk_hdmi_ddc *ddc, unsigned int
> u4ClkDiv,
> + unsigned char ucDev, unsigned int u4Addr,
> + enum SIF_BIT_T_HDMI ucAddrType,
> + unsigned char *pucValue, unsigned int
> u4Count)
> +{
> + unsigned int u4ReadCount = 0;
> + unsigned char ucReturnVaule = 0;
> +
> + if ((pucValue == NULL) || (u4Count == 0) || (u4ClkDiv == 0) ||
> + (ucAddrType > SIF_16_BIT_HDMI) ||
> + ((ucAddrType == SIF_8_BIT_HDMI) && (u4Addr > 255)) ||
> + ((ucAddrType == SIF_16_BIT_HDMI) && (u4Addr > 65535))) {
> + return 0;
> + }
> +
> + if (ucAddrType == SIF_8_BIT_HDMI)
> + u4ReadCount = ((255 - u4Addr) + 1);
> + else if (ucAddrType == SIF_16_BIT_HDMI)
> + u4ReadCount = ((65535 - u4Addr) + 1);
> +
> + u4ReadCount = (u4ReadCount > u4Count) ? u4Count : u4ReadCount;
> + ucReturnVaule = _DDCMRead_hdmi(ddc, 0, u4ClkDiv, ucDev, u4Addr,
> + ucAddrType, pucValue,
> u4ReadCount);
> + return ucReturnVaule;
> +}
> +
> +static unsigned char fgDDCDataRead(struct mtk_hdmi_ddc *ddc,
> unsigned char bDevice,
> + unsigned char bData_Addr, unsigned char
> bDataCount,
> + unsigned char *prData)
> +{
> + bool flag;
> +
> + mutex_lock(&ddc->mtx);
> +
> + hdmi_ddc_request(ddc);
> + if (vDDCRead(ddc, DDC2_CLOK, (unsigned char)bDevice,
> + (unsigned int)bData_Addr, SIF_8_BIT_HDMI,
> + (unsigned char *)prData,
> + (unsigned int)bDataCount) == bDataCount) {
> + flag = true;
> + } else {
> + flag = false;
> + }
> +
> + mutex_unlock(&ddc->mtx);
> + return flag;
> +}
> +
> +static unsigned char fgDDCDataWrite(struct mtk_hdmi_ddc *ddc,
> + unsigned char bDevice,
> + unsigned char bData_Addr,
> + unsigned char bDataCount,
> + unsigned char *prData)
> +{
> + unsigned int i;
> +
> + mutex_lock(&ddc->mtx);
> +
> + hdmi_ddc_request(ddc);
> + for (i = 0; i < bDataCount; i++)
> + DDC_WR_ONE(ddc, bDevice, bData_Addr + i, *(prData +
> i));
> +
> + mutex_unlock(&ddc->mtx);
> + return 1;
> +}
> +
> +static int mtk_hdmi_ddc_xfer(struct i2c_adapter *adapter, struct
> i2c_msg *msgs,
> + int num)
> +{
> + struct mtk_hdmi_ddc *ddc = adapter->algo_data;
> + struct device *dev = adapter->dev.parent;
> + int ret;
> + int i;
> +
> + if (!ddc)
> + return -EINVAL;
> +
> + for (i = 0; i < num; i++) {
> + struct i2c_msg *msg = &msgs[i];
> +
> + if (msg->flags & I2C_M_RD)
> + ret = fgDDCDataRead(ddc, msg->addr, msg-
> >buf[0],
> + (msg->len), &msg->buf[0]);
> + else
> + ret = fgDDCDataWrite(ddc, msg->addr, msg-
> >buf[0],
> + (msg->len - 1), &msg-
> >buf[1]);
> +
> + if (ret <= 0)
> + goto xfer_end;
> + }
> +
> + return i;
> +
> +xfer_end:
> + dev_err(dev, "ddc failed!\n");
> + return ret;
> +}
> +
> +static u32 mtk_hdmi_ddc_func(struct i2c_adapter *adapter)
> +{
> + return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
> +}
> +
> +static const struct i2c_algorithm mtk_hdmi_ddc_algorithm = {
> + .master_xfer = mtk_hdmi_ddc_xfer,
> + .functionality = mtk_hdmi_ddc_func,
> +};
> +
> +static int mtk_hdmi_ddc_probe(struct platform_device *pdev)
> +{
> + struct device *dev = &pdev->dev;
> + struct mtk_hdmi_ddc *ddc;
> + int ret;
> +
> + ddc = devm_kzalloc(dev, sizeof(struct mtk_hdmi_ddc),
> GFP_KERNEL);
> + if (!ddc)
> + return -ENOMEM;
> +
> + ddc->clk = devm_clk_get(dev, "ddc-i2c");
> + if (IS_ERR(ddc->clk)) {
> + dev_err(dev, "get ddc_clk failed: %p ,\n", ddc->clk);
> + return PTR_ERR(ddc->clk);
> + }
> + ret = clk_prepare_enable(ddc->clk);
> + if (ret) {
> + dev_err(dev, "enable ddc clk failed!\n");
> + return ret;
> + }
> +
> + mutex_init(&ddc->mtx);
> +
> + strscpy(ddc->adap.name, "mediatek-hdmi-ddc", sizeof(ddc-
> >adap.name));
> + ddc->adap.owner = THIS_MODULE;
> + ddc->adap.class = I2C_CLASS_DDC;
> + ddc->adap.algo = &mtk_hdmi_ddc_algorithm;
> + ddc->adap.retries = 3;
> + ddc->adap.dev.of_node = dev->of_node;
> + ddc->adap.algo_data = ddc;
> + ddc->adap.dev.parent = &pdev->dev;
> +
> + ret = i2c_add_adapter(&ddc->adap);
> + if (ret < 0) {
> + dev_err(dev, "failed to add bus to i2c core\n");
> + goto err_clk_disable;
> + }
> +
> + platform_set_drvdata(pdev, ddc);
> + return 0;
> +
> +err_clk_disable:
> + clk_disable_unprepare(ddc->clk);
> + return ret;
> +}
> +
> +static int mtk_hdmi_ddc_remove(struct platform_device *pdev)
> +{
> + struct mtk_hdmi_ddc *ddc = platform_get_drvdata(pdev);
> +
> + mutex_destroy(&ddc->mtx);
> + i2c_del_adapter(&ddc->adap);
> + clk_disable_unprepare(ddc->clk);
> +
> + return 0;
> +}
> +
> +static const struct of_device_id mtk_hdmi_ddc_match[] = {
> + {
> + .compatible = "mediatek,mt8195-hdmi-ddc",
> + },
> + {},
> +};
> +
> +struct platform_driver mtk_hdmi_mt8195_ddc_driver = {
> + .probe = mtk_hdmi_ddc_probe,
> + .remove = mtk_hdmi_ddc_remove,
> + .driver = {
> + .name = "mediatek-hdmi-mt8195-ddc",
> + .of_match_table = mtk_hdmi_ddc_match,
> + },
> +};
> +
> +MODULE_AUTHOR("Can Zeng <can.zeng@xxxxxxxxxxxx>");
> +MODULE_DESCRIPTION("MediaTek HDMI DDC Driver");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_ddc.h
> b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_ddc.h
> new file mode 100644
> index 000000000000..40139120411c
> --- /dev/null
> +++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_ddc.h
> @@ -0,0 +1,20 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (c) 2019 MediaTek Inc.
> + */
> +
> +#ifndef _MTK_DDC_H
> +#define _MTK_DDC_H
> +
> +#include <linux/clk.h>
> +#include <linux/i2c.h>
> +#include <linux/mutex.h>
> +
> +struct mtk_hdmi_ddc {
> + struct mutex mtx;
> + struct i2c_adapter adap;
> + struct clk *clk;
> + void __iomem *regs;
> +};
> +
> +#endif /* _MTK_DDC_H */
> diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_regs.h
> b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_regs.h
> new file mode 100644
> index 000000000000..d31dd50242f3
> --- /dev/null
> +++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_regs.h
> @@ -0,0 +1,276 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (c) 2019 MediaTek Inc.
> + */
> +
> +#ifndef _MTK_HDMI_REGS_H
> +#define _MTK_HDMI_REGS_H
> +
> +#define AIF_HEADER (0x00FFFFFF << 0)
> +#define AIF_PKT00 (0xFFFFFFFF << 0)
> +#define AIF_PKT01 (0x00FFFFFF << 0)
> +#define AIF_PKT02 (0xFFFFFFFF << 0)
> +#define AIF_PKT03 (0x00FFFFFF << 0)
> +#define AIP_CTRL 0x400
> +#define AIP_CTS_SVAL 0x408
> +#define AIP_DOWNSAMPLE_CTRL 0x41C
> +#define AIP_I2S_CHST0 0x414
> +#define AIP_I2S_CHST1 0x418
> +#define AIP_I2S_CTRL 0x410
> +#define AIP_N_VAL 0x404
> +#define AIP_SPDIF_CTRL 0x40C
> +#define AIP_TPI_CTRL 0x428
> +#define AIP_TXCTRL 0x424
> +#define AUD_DIS (0x0 << 2)
> +#define AUD_DIS_WR (0x0 << 18)
> +#define AUD_EN (0x1 << 2)
> +#define AUD_EN_WR (0x1 << 18)
> +#define AUD_ERR_THRESH (0x3F << 24)
> +#define AUD_ERR_THRESH_SHIFT 24
> +#define AUD_IN_EN (1 << 8)
> +#define AUD_IN_EN_SHIFT 8
> +#define AUD_MUTE_DIS (0x0 << 5)
> +#define AUD_MUTE_FIFO_EN (0x1 << 5)
> +#define AUD_PACKET_DROP (0x1 << 6)
> +#define AUD_RPT_DIS (0x0 << 2)
> +#define AUD_RPT_EN (0x1 << 2)
> +#define AUD_SEL_OWRT (1 << 9)
> +#define AVI_DIS (0x0 << 0)
> +#define AVI_DIS_WR (0x0 << 16)
> +#define AVI_EN (0x1 << 0)
> +#define AVI_EN_WR (0x1 << 16)
Use BIT() and GENMASK()
> +#define AVI_HEADER (0xFFFFFF << 0)
> +#define AVI_PKT00 (0xFFFFFFFF << 0)
> +#define AVI_PKT01 (0xFFFFFF << 0)
> +#define AVI_PKT02 (0xFFFFFFFF << 0)
> +#define AVI_PKT03 (0xFFFFFF << 0)
> +#define AVI_PKT04 (0xFFFFFFFF << 0)
> +#define AVI_PKT05 (0xFFFFFF << 0)
> +#define AVI_RPT_DIS (0x0 << 0)
> +#define AVI_RPT_EN (0x1 << 0)
> +#define C422_C420_CONFIG_BYPASS (0x1 << 5)
> +#define C422_C420_CONFIG_ENABLE (0x1 << 4)
> +#define C422_C420_CONFIG_OUT_CB_OR_CR (0x1 << 6)
> +#define C444_C422_CONFIG_ENABLE (0x1 << 0)
> +#define CBIT_ORDER_SAME (0x1 << 13)
> +#define CEA_AUD_EN (1 << 9)
> +#define CEA_AVI_EN (1 << 11)
> +#define CEA_CP_EN (1 << 6)
> +#define CEA_SPD_EN (1 << 10)
> +#define CLEAR_FIFO 0x9
> +#define CLOCK_SCL 0xA
> +#define CP_CLR_MUTE_EN (1 << 1)
> +#define CP_EN (0x1 << 5)
> +#define CP_EN_WR (0x1 << 21)
> +#define CP_RPT_EN (0x1 << 5)
> +#define CP_SET_MUTE_DIS (0 << 0)
> +#define CP_SET_MUTE_EN (1 << 0)
> +#define CTS_CAL_N4 (1 << 23)
> +#define CTS_REQ_EN (1 << 1)
> +#define CTS_SW_SEL (1 << 0)
> +#define C_SD0 (0x0 << 0)
> +#define C_SD1 (0x1 << 4)
> +#define C_SD2 (0x2 << 8)
> +#define C_SD3 (0x3 << 12)
> +#define C_SD4 (0x4 << 16)
> +#define C_SD5 (0x5 << 20)
> +#define C_SD6 (0x6 << 24)
> +#define C_SD7 (0x7 << 28)
> +#define DATA_DIR_LSB (0x1 << 9)
> +#define DATA_DIR_MSB (0x0 << 9)
> +#define DDC_CMD (0xF << 28)
> +#define DDC_CMD_SHIFT (28)
> +#define DDC_CTRL 0xC10
> +#define DDC_DATA_OUT (0xFF << 16)
> +#define DDC_DATA_OUT_CNT (0x1F << 8)
> +#define DDC_DATA_OUT_SHIFT (16)
> +#define DDC_DELAY_CNT (0xFFFF << 16)
> +#define DDC_DELAY_CNT_SHIFT (16)
> +#define DDC_DIN_CNT (0x3FF << 16)
> +#define DDC_DIN_CNT_SHIFT (16)
> +#define DDC_I2C_BUS_LOW (0x1 << 11)
> +#define DDC_I2C_IN_PROG (0x1 << 13)
> +#define DDC_I2C_IN_PROG_INT_CLR (1 << 29)
> +#define DDC_I2C_IN_PROG_INT_MASK (0 << 29)
> +#define DDC_I2C_IN_PROG_INT_STA (1 << 29)
> +#define DDC_I2C_IN_PROG_INT_UNCLR (0 << 29)
> +#define DDC_I2C_IN_PROG_INT_UNMASK (1 << 29)
> +#define DDC_I2C_NO_ACK (0x1 << 10)
> +#define DDC_OFFSET (0xFF << 8)
> +#define DDC_OFFSET_SHIFT (8)
> +#define DDC_SEGMENT (0xFF << 8)
> +#define DDC_SEGMENT_SHIFT (8)
> +#define DEEPCOLOR_MODE_10BIT (1 << 8)
> +#define DEEPCOLOR_MODE_12BIT (2 << 8)
> +#define DEEPCOLOR_MODE_16BIT (3 << 8)
> +#define DEEPCOLOR_MODE_8BIT (0 << 8)
> +#define DEEPCOLOR_MODE_MASKBIT (3 << 8)
> +#define DEEPCOLOR_PAT_EN (1 << 12)
> +#define DEEP_COLOR_ADD (0x1 << 4)
> +#define DOWNSAMPLE 0x2
> +#define DSD_EN (1 << 15)
> +#define DSD_MUTE_DATA (0x1 << 7)
> +#define ENH_READ_NO_ACK 0x4
> +#define FIFO0_MAP (0x3 << 0)
> +#define FIFO1_MAP (0x3 << 2)
> +#define FIFO2_MAP (0x3 << 4)
> +#define FIFO3_MAP (0x3 << 6)
> +#define FS_OVERRIDE_WRITE (1 << 1)
> +#define FS_UNOVERRIDE (0 << 1)
> +#define HBRA_ON (1 << 14)
> +#define HBR_FROM_SPDIF (1 << 20)
> +#define HDCP1X_CTRL 0xCD0
> +#define HDCP1X_ENC_EN (0x1 << 6)
> +#define HDCP1X_ENC_EN_SHIFT (6)
> +#define HDCP2X_CTRL_0 0xC20
> +#define HDCP2X_DDCM_STATUS 0xC68
> +#define HDCP2X_DIS_POLL_EN (0x1 << 16)
> +#define HDCP2X_EN (0x1 << 0)
> +#define HDCP2X_ENCRYPTING_ON (0x1 << 10)
> +#define HDCP2X_ENCRYPT_EN (0x1 << 7)
> +#define HDCP2X_ENCRYPT_EN_SHIFT (7)
> +#define HDCP2X_HPD_OVR (0x1 << 10)
> +#define HDCP2X_HPD_SW (0x1 << 11)
> +#define HDCP2X_POL_CTRL 0xC54
> +#define HDCP2X_RX_REAUTH_REQ_DDCM_INT_MASK (0 << 25)
> +#define HDCP2X_RX_REAUTH_REQ_DDCM_INT_UNMASK (1 << 25)
> +#define HDCP_ENABLE (0x0 << 0)
> +#define HDCP_ENCRYPTING_ON (0x1 << 26)
> +#define HDCP_TOP_CTRL 0xC00
> +#define HDMI2_OFF (0 << 2)
> +#define HDMI2_ON (1 << 2)
> +#define HDMITX_CONFIG 0x900
> +#define HDMITX_SW_HPD BIT(29)
> +#define HDMITX_SW_HPD_SHIFT (29)
> +#define HDMITX_SW_RSTB BIT(31)
> +#define HDMITX_SW_RSTB_SHIFT (31)
> +#define HDMI_MODE_DVI (0 << 3)
> +#define HDMI_MODE_HDMI (1 << 3)
> +#define HDMI_YUV420_MODE BIT(10)
> +#define HDMI_YUV420_MODE_SHIFT (10)
> +#define HPD_DDC_CTRL 0xC08
> +#define HPD_DDC_STATUS 0xC60
> +#define HPD_PIN_STA (0x1 << 4)
> +#define HPD_STATE (0x3 << 0)
> +#define HPD_STATE_CONNECTED (2)
> +#define HPD_STATE_DISCONNECTED (0)
> +#define HPD_STATE_SHIFT (0)
> +#define HTPLG_F_INT_STA (1 << 1)
> +#define HTPLG_R_INT_STA (1 << 0)
> +#define I2S2DSD_EN (1 << 30)
> +#define I2S_1ST_BIT_NOSHIFT (0x1 << 8)
> +#define I2S_EN (0xF << 16)
> +#define I2S_EN_SHIFT 16
> +#define JUSTIFY_RIGHT (0x1 << 10)
> +#define LAYOUT (0x1 << 18)
> +#define LAYOUT0 (0x0 << 4)
> +#define LAYOUT1 (0x1 << 4)
> +#define LFE_CC_SWAP (0x01 << 1)
> +#define MAP_SD0 0x0
> +#define MAP_SD1 0x1
> +#define MAP_SD2 0x2
> +#define MAP_SD3 0x3
> +#define MAX_1UI_WRITE (0xFF << 8)
> +#define MAX_1UI_WRITE_SHIFT 8
> +#define MAX_2UI_WRITE (0xFF << 16)
> +#define MAX_2UI_WRITE_SHIFT 16
> +#define MCLK_1152FS 0x6
> +#define MCLK_128FS 0x0
> +#define MCLK_192FS 0x7
> +#define MCLK_256FS 0x1
> +#define MCLK_384FS 0x2
> +#define MCLK_512FS 0x3
> +#define MCLK_768FS 0x4
> +#define MCLK_CTSGEN_SEL (0 << 3)
> +#define MCLK_EN (1 << 2)
> +#define NO_MCLK_CTSGEN_SEL (1 << 3)
> +#define NULL_PKT_EN (1 << 2)
> +#define NULL_PKT_VSYNC_HIGH_EN (1 << 3)
> +#define OUTPUT_FORMAT_DEMUX_420_ENABLE (0x1 << 10)
> +#define PORD_F_INT_STA (1 << 3)
> +#define PORD_PIN_STA (0x1 << 5)
> +#define PORD_R_INT_STA (1 << 2)
> +#define REG_VMUTE_EN (1 << 16)
> +#define RST4AUDIO (0x1 << 0)
> +#define RST4AUDIO_ACR (0x1 << 2)
> +#define RST4AUDIO_FIFO (0x1 << 1)
> +#define SCDC_CTRL 0xC18
> +#define SCK_EDGE_RISE (0x1 << 14)
> +#define SCR_OFF (0 << 4)
> +#define SCR_ON (1 << 4)
> +#define SEQ_READ_NO_ACK 0x2
> +#define SEQ_WRITE_REQ_ACK 0x7
> +#define SI2C_ADDR (0xFFFF << 16)
> +#define SI2C_ADDR_READ (0xF4)
> +#define SI2C_ADDR_SHIFT (16)
> +#define SI2C_CONFIRM_READ (0x1 << 2)
> +#define SI2C_CTRL 0xCAC
> +#define SI2C_RD (0x1 << 1)
> +#define SI2C_WDATA (0xFF << 8)
> +#define SI2C_WDATA_SHIFT (8)
> +#define SI2C_WR (0x1 << 0)
> +#define SPDIF_EN (1 << 13)
> +#define SPDIF_EN_SHIFT 13
> +#define SPDIF_HEADER (0x00FFFFFF << 0)
> +#define SPDIF_INTERNAL_MODULE (1 << 24)
> +#define SPDIF_PKT00 (0xFFFFFFFF << 0)
> +#define SPDIF_PKT01 (0x00FFFFFF << 0)
> +#define SPDIF_PKT02 (0xFFFFFFFF << 0)
> +#define SPDIF_PKT03 (0x00FFFFFF << 0)
> +#define SPDIF_PKT04 (0xFFFFFFFF << 0)
> +#define SPDIF_PKT05 (0x00FFFFFF << 0)
> +#define SPDIF_PKT06 (0xFFFFFFFF << 0)
> +#define SPDIF_PKT07 (0x00FFFFFF << 0)
> +#define SPD_DIS (0x0 << 1)
> +#define SPD_DIS_WR (0x0 << 17)
> +#define SPD_EN (0x1 << 1)
> +#define SPD_EN_WR (0x1 << 17)
> +#define SPD_RPT_DIS (0x0 << 1)
> +#define SPD_RPT_EN (0x1 << 1)
> +#define TOP_AIF_HEADER 0x040
> +#define TOP_AIF_PKT00 0x044
> +#define TOP_AIF_PKT01 0x048
> +#define TOP_AIF_PKT02 0x04C
> +#define TOP_AIF_PKT03 0x050
> +#define TOP_AUD_MAP 0x00C
> +#define TOP_AVI_HEADER 0x024
> +#define TOP_AVI_PKT00 0x028
> +#define TOP_AVI_PKT01 0x02C
> +#define TOP_AVI_PKT02 0x030
> +#define TOP_AVI_PKT03 0x034
> +#define TOP_AVI_PKT04 0x038
> +#define TOP_AVI_PKT05 0x03C
> +#define TOP_CFG00 0x000
> +#define TOP_CFG01 0x004
> +#define TOP_INFO_EN 0x01C
> +#define TOP_INFO_EN_EXPAND 0x368
> +#define TOP_INFO_RPT 0x020
> +#define TOP_INT_CLR00 0x1B8
> +#define TOP_INT_CLR01 0x1BC
> +#define TOP_INT_MASK00 0x1B0
> +#define TOP_INT_MASK01 0x1B4
> +#define TOP_INT_STA00 0x1A8
> +#define TOP_MISC_CTLR 0x1A4
> +#define TOP_SPDIF_HEADER 0x054
> +#define TOP_SPDIF_PKT00 0x058
> +#define TOP_SPDIF_PKT01 0x05C
> +#define TOP_SPDIF_PKT02 0x060
> +#define TOP_SPDIF_PKT03 0x064
> +#define TOP_SPDIF_PKT04 0x068
> +#define TOP_SPDIF_PKT05 0x06C
> +#define TOP_SPDIF_PKT06 0x070
> +#define TOP_SPDIF_PKT07 0x074
> +#define TOP_VMUTE_CFG1 0x1C8
> +#define TPI_AUDIO_LOOKUP_DIS (0x0 << 2)
> +#define TPI_AUDIO_LOOKUP_EN (0x1 << 2)
> +#define VBIT_COM (0x1 << 12)
> +#define VBIT_PCM (0x0 << 12)
> +#define VID_DOWNSAMPLE_CONFIG 0x8F0
> +#define VID_OUT_FORMAT 0x8FC
> +#define WR_1UI_LOCK (1 << 0)
> +#define WR_1UI_UNLOCK (0 << 0)
> +#define WR_2UI_LOCK (1 << 2)
> +#define WR_2UI_UNLOCK (0 << 2)
> +#define WS_HIGH (0x1 << 11)
> +
> +#endif /* _MTK_HDMI_REGS_H */

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