[PATCH 4/7] drm/mediatek: add hdmi driver for different hardware

From: Bibby Hsieh
Date: Mon May 07 2018 - 22:21:50 EST

From: chunhui dai <chunhui.dai@xxxxxxxxxxxx>

This patch adds hdmi dirver suppot for both MT2701 and MT7623.
And also support other (existing or future) chips that use
the same binding and driver.

Signed-off-by: Chunhui Dai <chunhui.dai@xxxxxxxxxxxx>
---
drivers/gpu/drm/mediatek/Makefile | 4 +-
drivers/gpu/drm/mediatek/mtk_hdmi.c | 88 +++++--
drivers/gpu/drm/mediatek/mtk_hdmi.h | 28 +++
drivers/gpu/drm/mediatek/mtk_hdmi_phy.c | 157 +++++++++++++
drivers/gpu/drm/mediatek/mtk_hdmi_regs.h | 1 +
drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c | 307 +++++++++++++++++++++++++
drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c | 129 +----------
7 files changed, 566 insertions(+), 148 deletions(-)
create mode 100644 drivers/gpu/drm/mediatek/mtk_hdmi_phy.c
create mode 100644 drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c

diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile
index ce83c396a742..44464893c1cb 100644
--- a/drivers/gpu/drm/mediatek/Makefile
+++ b/drivers/gpu/drm/mediatek/Makefile
@@ -18,6 +18,8 @@ obj-$(CONFIG_DRM_MEDIATEK) += mediatek-drm.o
mediatek-drm-hdmi-objs := mtk_cec.o \
mtk_hdmi.o \
mtk_hdmi_ddc.o \
- mtk_mt8173_hdmi_phy.o
+ mtk_mt2701_hdmi_phy.o \
+ mtk_mt8173_hdmi_phy.o \
+ mtk_hdmi_phy.o

obj-$(CONFIG_DRM_MEDIATEK_HDMI) += mediatek-drm-hdmi.o
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index 59a11026dceb..accafd95d6a8 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -233,6 +233,7 @@ static void mtk_hdmi_hw_vid_black(struct mtk_hdmi *hdmi, bool black)
static void mtk_hdmi_hw_make_reg_writable(struct mtk_hdmi *hdmi, bool enable)
{
struct arm_smccc_res res;
+ struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(hdmi->phy);

/*
* MT8173 HDMI hardware has an output control bit to enable/disable HDMI
@@ -240,8 +241,13 @@ static void mtk_hdmi_hw_make_reg_writable(struct mtk_hdmi *hdmi, bool enable)
* The ARM trusted firmware provides an API for the HDMI driver to set
* this control bit to enable HDMI output in supervisor mode.
*/
- arm_smccc_smc(MTK_SIP_SET_AUTHORIZED_SECURE_REG, 0x14000904, 0x80000000,
- 0, 0, 0, 0, 0, &res);
+ if (hdmi_phy->conf && hdmi_phy->conf->tz_enabled)
+ arm_smccc_smc(MTK_SIP_SET_AUTHORIZED_SECURE_REG, 0x14000904,
+ 0x80000000, 0, 0, 0, 0, 0, &res);
+ else
+ regmap_update_bits(hdmi->sys_regmap,
+ hdmi->sys_offset + HDMI_SYS_CFG20,
+ HDMI_PSECUR_EN, enable ? 0 : HDMI_PSECUR_EN);

regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG20,
HDMI_PCLK_FREE_RUN, enable ? HDMI_PCLK_FREE_RUN : 0);
@@ -1437,6 +1443,7 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
struct platform_device *cec_pdev;
struct regmap *regmap;
struct resource *mem;
+ const char *phy_name;
int ret;

ret = mtk_hdmi_get_all_clk(hdmi, np);
@@ -1445,9 +1452,20 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
return ret;
}

+ ret = of_property_read_string(np, "phy-names", &phy_name);
+ if (ret < 0) {
+ dev_err(dev, "Failed to read phy-names: %d\n", ret);
+ return ret;
+ }
+ hdmi->phy = devm_phy_get(dev, phy_name);
+ if (IS_ERR(hdmi->phy)) {
+ ret = PTR_ERR(hdmi->phy);
+ dev_err(dev, "Failed to get HDMI PHY: %d\n", ret);
+ return ret;
+ }
+
/* The CEC module handles HDMI hotplug detection */
- cec_np = of_find_compatible_node(np->parent, NULL,
- "mediatek,mt8173-cec");
+ cec_np = of_parse_phandle(np, "cec", 0);
if (!cec_np) {
dev_err(dev, "Failed to find CEC node\n");
return -EINVAL;
@@ -1486,8 +1504,14 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
return PTR_ERR(hdmi->regs);

remote = of_graph_get_remote_node(np, 1, 0);
- if (!remote)
- return -EINVAL;
+ if (!remote) {
+ i2c_np = of_parse_phandle(np, "ddc-i2c-bus", 0);
+ if (!i2c_np) {
+ dev_err(dev, "Failed to find ddc-i2c-bus node\n");
+ return -EINVAL;
+ }
+ goto find_ddc_adpt;
+ }

if (!of_device_is_compatible(remote, "hdmi-connector")) {
hdmi->next_bridge = of_drm_find_bridge(remote);
@@ -1507,6 +1531,7 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
}
of_node_put(remote);

+find_ddc_adpt:
hdmi->ddc_adpt = of_find_i2c_adapter_by_node(i2c_np);
if (!hdmi->ddc_adpt) {
dev_err(dev, "Failed to get ddc i2c adapter by node\n");
@@ -1575,6 +1600,11 @@ static int mtk_hdmi_audio_hw_params(struct device *dev, void *data,
hdmi_params.aud_i2s_fmt = HDMI_I2S_MODE_I2S_24BIT;
hdmi_params.aud_mclk = HDMI_AUD_MCLK_128FS;
break;
+ case HDMI_SPDIF:
+ 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_SPDIF;
+ break;
default:
dev_err(hdmi->dev, "%s: Invalid DAI format %d\n", __func__,
daifmt->fmt);
@@ -1650,15 +1680,15 @@ static void mtk_hdmi_register_audio_driver(struct device *dev)
.max_i2s_channels = 2,
.i2s = 1,
};
- struct platform_device *pdev;
+ static 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))
+ if (!pdev) {
+ pdev = platform_device_register_data(dev, HDMI_CODEC_DRV_NAME,
+ PLATFORM_DEVID_NONE, &codec_data,
+ sizeof(codec_data));
+ DRM_INFO("%s driver bound to HDMI\n", HDMI_CODEC_DRV_NAME);
+ }
return;
-
- DRM_INFO("%s driver bound to HDMI\n", HDMI_CODEC_DRV_NAME);
}

static int mtk_drm_hdmi_probe(struct platform_device *pdev)
@@ -1672,18 +1702,12 @@ static int mtk_drm_hdmi_probe(struct platform_device *pdev)
return -ENOMEM;

hdmi->dev = dev;
+ mtk_hdmi_register_audio_driver(dev);

ret = mtk_hdmi_dt_parse_pdata(hdmi, pdev);
if (ret)
return ret;

- hdmi->phy = devm_phy_get(dev, "hdmi");
- if (IS_ERR(hdmi->phy)) {
- ret = PTR_ERR(hdmi->phy);
- dev_err(dev, "Failed to get HDMI PHY: %d\n", ret);
- return ret;
- }
-
platform_set_drvdata(pdev, hdmi);

ret = mtk_hdmi_output_init(hdmi);
@@ -1692,8 +1716,6 @@ static int mtk_drm_hdmi_probe(struct platform_device *pdev)
return ret;
}

- mtk_hdmi_register_audio_driver(dev);
-
hdmi->bridge.funcs = &mtk_hdmi_bridge_funcs;
hdmi->bridge.of_node = pdev->dev.of_node;
drm_bridge_add(&hdmi->bridge);
@@ -1704,7 +1726,6 @@ static int mtk_drm_hdmi_probe(struct platform_device *pdev)
goto err_bridge_remove;
}

- dev_dbg(dev, "mediatek hdmi probe success\n");
return 0;

err_bridge_remove:
@@ -1773,8 +1794,25 @@ static struct platform_driver * const mtk_hdmi_drivers[] = {

static int __init mtk_hdmitx_init(void)
{
- return platform_register_drivers(mtk_hdmi_drivers,
- ARRAY_SIZE(mtk_hdmi_drivers));
+ int ret;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(mtk_hdmi_drivers); i++) {
+ ret = platform_driver_register(mtk_hdmi_drivers[i]);
+ if (ret < 0) {
+ pr_err("Failed to register %s driver: %d\n",
+ mtk_hdmi_drivers[i]->driver.name, ret);
+ goto err;
+ }
+ }
+
+ return 0;
+
+err:
+ while (--i >= 0)
+ platform_driver_unregister(mtk_hdmi_drivers[i]);
+
+ return ret;
}

static void __exit mtk_hdmitx_exit(void)
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.h b/drivers/gpu/drm/mediatek/mtk_hdmi.h
index 6371b3de1ff6..a4546b83329f 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.h
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.h
@@ -13,11 +13,39 @@
*/
#ifndef _MTK_HDMI_CTRL_H
#define _MTK_HDMI_CTRL_H
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+#include <linux/phy/phy.h>
+
+struct mtk_hdmi_phy_conf {
+ bool tz_enabled;
+ const struct clk_ops *hdmi_phy_clk_ops;
+ const struct phy_ops *hdmi_phy_dev_ops;
+};
+
+struct mtk_hdmi_phy {
+ void __iomem *regs;
+ struct device *dev;
+ struct mtk_hdmi_phy_conf *conf;
+ struct clk *pll;
+ struct clk_hw pll_hw;
+ unsigned long pll_rate;
+ unsigned char drv_imp_clk;
+ unsigned char drv_imp_d2;
+ unsigned char drv_imp_d1;
+ unsigned char drv_imp_d0;
+ unsigned int ibias;
+ unsigned int ibias_up;
+};

struct platform_driver;

extern struct platform_driver mtk_cec_driver;
extern struct platform_driver mtk_hdmi_ddc_driver;
extern struct platform_driver mtk_hdmi_phy_driver;
+extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_8173_conf;
+extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_2701_conf;
+

#endif /* _MTK_HDMI_CTRL_H */
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c b/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c
new file mode 100644
index 000000000000..325790abd469
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: Jie Qiu <jie.qiu@xxxxxxxxxxxx>
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/kernel.h>
+#include <linux/mfd/syscon.h>
+#include <linux/of_platform.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/phy/phy.h>
+#include "mtk_hdmi.h"
+
+static void mtk_hdmi_phy_clk_get_ops(struct mtk_hdmi_phy *hdmi_phy,
+ const struct clk_ops **ops)
+{
+ if (hdmi_phy && hdmi_phy->conf && hdmi_phy->conf->hdmi_phy_clk_ops)
+ *ops = hdmi_phy->conf->hdmi_phy_clk_ops;
+ else
+ dev_err(hdmi_phy->dev, "Failed to get clk ops of phy\n");
+}
+
+static const struct phy_ops *
+mtk_hdmi_phy_dev_get_ops(const struct mtk_hdmi_phy *hdmi_phy)
+{
+ if (hdmi_phy && hdmi_phy->conf && hdmi_phy->conf->hdmi_phy_dev_ops)
+ return hdmi_phy->conf->hdmi_phy_dev_ops;
+ dev_err(hdmi_phy->dev, "Failed to get dev ops of phy\n");
+ return NULL;
+}
+
+static int mtk_hdmi_phy_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct mtk_hdmi_phy *hdmi_phy;
+ struct resource *mem;
+ struct clk *ref_clk;
+ const char *ref_clk_name;
+ struct clk_init_data clk_init = {
+ .num_parents = 1,
+ .parent_names = (const char * const *)&ref_clk_name,
+ .flags = CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE,
+ };
+
+ struct phy *phy;
+ struct phy_provider *phy_provider;
+ int ret;
+
+ hdmi_phy = devm_kzalloc(dev, sizeof(*hdmi_phy), GFP_KERNEL);
+ if (!hdmi_phy)
+ return -ENOMEM;
+
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ hdmi_phy->regs = devm_ioremap_resource(dev, mem);
+ if (IS_ERR(hdmi_phy->regs)) {
+ ret = PTR_ERR(hdmi_phy->regs);
+ dev_err(dev, "Failed to get memory resource: %d\n", ret);
+ return ret;
+ }
+
+ ref_clk = devm_clk_get(dev, "pll_ref");
+ if (IS_ERR(ref_clk)) {
+ ret = PTR_ERR(ref_clk);
+ dev_err(&pdev->dev, "Failed to get PLL reference clock: %d\n",
+ ret);
+ return ret;
+ }
+ ref_clk_name = __clk_get_name(ref_clk);
+
+ ret = of_property_read_string(dev->of_node, "clock-output-names",
+ &clk_init.name);
+ if (ret < 0) {
+ dev_err(dev, "Failed to read clock-output-names: %d\n", ret);
+ return ret;
+ }
+
+ hdmi_phy->dev = dev;
+ hdmi_phy->conf =
+ (struct mtk_hdmi_phy_conf *)of_device_get_match_data(dev);
+ mtk_hdmi_phy_clk_get_ops(hdmi_phy, &clk_init.ops);
+ hdmi_phy->pll_hw.init = &clk_init;
+ hdmi_phy->pll = devm_clk_register(dev, &hdmi_phy->pll_hw);
+ if (IS_ERR(hdmi_phy->pll)) {
+ ret = PTR_ERR(hdmi_phy->pll);
+ dev_err(dev, "Failed to register PLL: %d\n", ret);
+ return ret;
+ }
+
+ ret = of_property_read_u32(dev->of_node, "mediatek,ibias",
+ &hdmi_phy->ibias);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to get ibias: %d\n", ret);
+ return ret;
+ }
+
+ ret = of_property_read_u32(dev->of_node, "mediatek,ibias_up",
+ &hdmi_phy->ibias_up);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to get ibias up: %d\n", ret);
+ return ret;
+ }
+
+ dev_info(dev, "Using default TX DRV impedance: 4.2k/36\n");
+ hdmi_phy->drv_imp_clk = 0x30;
+ hdmi_phy->drv_imp_d2 = 0x30;
+ hdmi_phy->drv_imp_d1 = 0x30;
+ hdmi_phy->drv_imp_d0 = 0x30;
+
+ phy = devm_phy_create(dev, NULL, mtk_hdmi_phy_dev_get_ops(hdmi_phy));
+ if (IS_ERR(phy)) {
+ dev_err(dev, "Failed to create HDMI PHY\n");
+ return PTR_ERR(phy);
+ }
+ phy_set_drvdata(phy, hdmi_phy);
+
+ phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+ if (IS_ERR(phy_provider)) {
+ dev_err(dev, "Failed to register HDMI PHY\n");
+ return PTR_ERR(phy_provider);
+ }
+
+ return of_clk_add_provider(dev->of_node, of_clk_src_simple_get,
+ hdmi_phy->pll);
+}
+
+static int mtk_hdmi_phy_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static const struct of_device_id mtk_hdmi_phy_match[] = {
+ { .compatible = "mediatek,mt2701-hdmi-phy",
+ .data = &mtk_hdmi_phy_2701_conf,
+ },
+ { .compatible = "mediatek,mt8173-hdmi-phy",
+ .data = &mtk_hdmi_phy_8173_conf,
+ },
+ {},
+};
+
+struct platform_driver mtk_hdmi_phy_driver = {
+ .probe = mtk_hdmi_phy_probe,
+ .remove = mtk_hdmi_phy_remove,
+ .driver = {
+ .name = "mediatek-hdmi-phy",
+ .of_match_table = mtk_hdmi_phy_match,
+ },
+};
+
+MODULE_DESCRIPTION("MediaTek HDMI PHY Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_regs.h b/drivers/gpu/drm/mediatek/mtk_hdmi_regs.h
index a5cb07d12c9c..e53c6646571c 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi_regs.h
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi_regs.h
@@ -227,6 +227,7 @@
#define DEEP_COLOR_EN BIT(0)
#define HDMI_AUDIO_TEST_SEL BIT(8)
#define HDMI2P0_EN BIT(11)
+#define HDMI_PSECUR_EN BIT(15)
#define HDMI_OUT_FIFO_EN BIT(16)
#define HDMI_OUT_FIFO_CLK_INV BIT(17)
#define MHL_MODE_ON BIT(28)
diff --git a/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c b/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c
new file mode 100644
index 000000000000..8af5e6c1aecc
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c
@@ -0,0 +1,307 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *Copyright (c) 2018 MediaTek Inc.
+ *Author: Chunhui Dai <chunhui.dai@xxxxxxxxxxxx>
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/debugfs.h>
+#include <linux/kernel.h>
+#include <linux/mfd/syscon.h>
+#include <linux/of_platform.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/phy/phy.h>
+#include "mtk_hdmi.h"
+
+#define HDMI_CON0 0x00
+#define RG_HDMITX_DRV_IBIAS (0)
+#define RG_HDMITX_DRV_IBIAS_MASK (0x3F << 0)
+#define RG_HDMITX_EN_SER (12)
+#define RG_HDMITX_EN_SER_MASK (0x0F << 12)
+#define RG_HDMITX_EN_SLDO (16)
+#define RG_HDMITX_EN_SLDO_MASK (0x0F << 16)
+#define RG_HDMITX_EN_PRED (20)
+#define RG_HDMITX_EN_PRED_MASK (0x0F << 20)
+#define RG_HDMITX_EN_IMP (24)
+#define RG_HDMITX_EN_IMP_MASK (0x0F << 24)
+#define RG_HDMITX_EN_DRV (28)
+#define RG_HDMITX_EN_DRV_MASK (0x0F << 28)
+
+#define HDMI_CON1 0x04
+#define RG_HDMITX_PRED_IBIAS (18)
+#define RG_HDMITX_PRED_IBIAS_MASK (0x0F << 18)
+#define RG_HDMITX_PRED_IMP (0x01 << 22)
+#define RG_HDMITX_DRV_IMP (26)
+#define RG_HDMITX_DRV_IMP_MASK (0x3F << 26)
+
+#define HDMI_CON2 0x08
+#define RG_HDMITX_EN_TX_CKLDO (0x01 << 0)
+#define RG_HDMITX_EN_TX_POSDIV (0x01 << 1)
+#define RG_HDMITX_TX_POSDIV (3)
+#define RG_HDMITX_TX_POSDIV_MASK (0x03 << 3)
+#define RG_HDMITX_EN_MBIAS (0x01 << 6)
+#define RG_HDMITX_MBIAS_LPF_EN (0x01 << 7)
+
+#define HDMI_CON4 0x10
+#define RG_HDMITX_RESERVE_MASK (0xFFFFFFFF << 0)
+
+#define HDMI_CON6 0x18
+#define RG_HTPLL_BR (0)
+#define RG_HTPLL_BR_MASK (0x03 << 0)
+#define RG_HTPLL_BC (2)
+#define RG_HTPLL_BC_MASK (0x03 << 2)
+#define RG_HTPLL_BP (4)
+#define RG_HTPLL_BP_MASK (0x0F << 4)
+#define RG_HTPLL_IR (8)
+#define RG_HTPLL_IR_MASK (0x0F << 8)
+#define RG_HTPLL_IC (12)
+#define RG_HTPLL_IC_MASK (0x0F << 12)
+#define RG_HTPLL_POSDIV (16)
+#define RG_HTPLL_POSDIV_MASK (0x03 << 16)
+#define RG_HTPLL_PREDIV (18)
+#define RG_HTPLL_PREDIV_MASK (0x03 << 18)
+#define RG_HTPLL_FBKSEL (20)
+#define RG_HTPLL_FBKSEL_MASK (0x03 << 20)
+#define RG_HTPLL_RLH_EN (0x01 << 22)
+#define RG_HTPLL_FBKDIV (24)
+#define RG_HTPLL_FBKDIV_MASK (0x7F << 24)
+#define RG_HTPLL_EN (0x01 << 31)
+
+#define HDMI_CON7 0x1c
+#define RG_HTPLL_AUTOK_EN (0x01 << 23)
+#define RG_HTPLL_DIVEN (28)
+#define RG_HTPLL_DIVEN_MASK (0x07 << 28)
+
+static inline struct mtk_hdmi_phy *to_mtk_hdmi_pll(struct clk_hw *hw)
+{
+ return container_of(hw, struct mtk_hdmi_phy, pll_hw);
+}
+
+static inline void mtk_hdmi_pll_mask(struct mtk_hdmi_phy *hdmi_phy, u32 offset,
+ u32 val, u32 mask)
+{
+ u32 tmp = readl(hdmi_phy->regs + offset) & ~mask;
+
+ tmp |= (val & mask);
+ writel(tmp, hdmi_phy->regs + offset);
+}
+
+static int mtk_hdmi_pll_enable(struct clk_hw *hw)
+{
+ struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_pll(hw);
+
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON7, RG_HTPLL_AUTOK_EN,
+ RG_HTPLL_AUTOK_EN);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, 0, RG_HTPLL_RLH_EN);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, (0x3 << RG_HTPLL_POSDIV),
+ RG_HTPLL_POSDIV_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON2, RG_HDMITX_EN_MBIAS,
+ RG_HDMITX_EN_MBIAS);
+ usleep_range(80, 100);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, RG_HTPLL_EN, RG_HTPLL_EN);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON2, RG_HDMITX_EN_TX_CKLDO,
+ RG_HDMITX_EN_TX_CKLDO);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, (0xf << RG_HDMITX_EN_SLDO),
+ RG_HDMITX_EN_SLDO_MASK);
+ usleep_range(80, 100);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON2, RG_HDMITX_MBIAS_LPF_EN,
+ RG_HDMITX_MBIAS_LPF_EN);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON2, RG_HDMITX_EN_TX_POSDIV,
+ RG_HDMITX_EN_TX_POSDIV);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, (0xf << RG_HDMITX_EN_SER),
+ RG_HDMITX_EN_SER_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, (0xf << RG_HDMITX_EN_PRED),
+ RG_HDMITX_EN_PRED_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, (0xf << RG_HDMITX_EN_DRV),
+ RG_HDMITX_EN_DRV_MASK);
+ usleep_range(80, 100);
+ return 0;
+}
+
+static void mtk_hdmi_pll_disable(struct clk_hw *hw)
+{
+ struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_pll(hw);
+
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, 0, RG_HDMITX_EN_DRV_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, 0, RG_HDMITX_EN_PRED_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, 0, RG_HDMITX_EN_SER_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON2, 0, RG_HDMITX_EN_TX_POSDIV);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON2, 0, RG_HDMITX_MBIAS_LPF_EN);
+ usleep_range(80, 100);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, 0, RG_HDMITX_EN_SLDO_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON2, 0, RG_HDMITX_EN_TX_CKLDO);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, 0, RG_HTPLL_EN);
+ usleep_range(80, 100);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON2, 0, RG_HDMITX_EN_MBIAS);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, 0, RG_HTPLL_POSDIV_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, 0, RG_HTPLL_RLH_EN);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON7, 0, RG_HTPLL_AUTOK_EN);
+ usleep_range(80, 100);
+}
+
+static int mtk_hdmi_pll_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_pll(hw);
+ u32 pos_div;
+
+ if (rate <= 64000000)
+ pos_div = 3;
+ else if (rate <= 12800000)
+ pos_div = 1;
+ else
+ pos_div = 1;
+
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, (0x3 << RG_HTPLL_PREDIV),
+ RG_HTPLL_PREDIV_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, (0x3 << RG_HTPLL_POSDIV),
+ RG_HTPLL_POSDIV_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, (0x1 << RG_HTPLL_IC),
+ RG_HTPLL_IC_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, (0x1 << RG_HTPLL_IR),
+ RG_HTPLL_IR_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON2, (pos_div << RG_HDMITX_TX_POSDIV),
+ RG_HDMITX_TX_POSDIV_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, (1 << RG_HTPLL_FBKSEL),
+ RG_HTPLL_FBKSEL_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, (19 << RG_HTPLL_FBKDIV),
+ RG_HTPLL_FBKDIV_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON7, (0x2 << RG_HTPLL_DIVEN),
+ RG_HTPLL_DIVEN_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, (0xc << RG_HTPLL_BP),
+ RG_HTPLL_BP_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, (0x2 << RG_HTPLL_BC),
+ RG_HTPLL_BC_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, (0x1 << RG_HTPLL_BR),
+ RG_HTPLL_BR_MASK);
+
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON1, 0, RG_HDMITX_PRED_IMP);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON1, (0x3 << RG_HDMITX_PRED_IBIAS),
+ RG_HDMITX_PRED_IBIAS_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, (0x0 << RG_HDMITX_EN_IMP),
+ RG_HDMITX_EN_IMP_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON1, (0x28 << RG_HDMITX_DRV_IMP),
+ RG_HDMITX_DRV_IMP_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON4, 0x28, RG_HDMITX_RESERVE_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, (0xa << RG_HDMITX_DRV_IBIAS),
+ RG_HDMITX_DRV_IBIAS_MASK);
+ return 0;
+}
+
+static long mtk_hdmi_pll_round_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long *parent_rate)
+{
+ struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_pll(hw);
+
+ hdmi_phy->pll_rate = rate;
+ return rate;
+}
+
+static unsigned long mtk_hdmi_pll_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_pll(hw);
+
+ return hdmi_phy->pll_rate;
+}
+
+static const struct clk_ops mtk_hdmi_phy_pll_ops = {
+ .enable = mtk_hdmi_pll_enable,
+ .disable = mtk_hdmi_pll_disable,
+ .set_rate = mtk_hdmi_pll_set_rate,
+ .round_rate = mtk_hdmi_pll_round_rate,
+ .recalc_rate = mtk_hdmi_pll_recalc_rate,
+};
+
+static void mtk_hdmi_phy_enable_tmds(struct mtk_hdmi_phy *hdmi_phy)
+{
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON7, RG_HTPLL_AUTOK_EN,
+ RG_HTPLL_AUTOK_EN);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, 0, RG_HTPLL_RLH_EN);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, (0x3 << RG_HTPLL_POSDIV),
+ RG_HTPLL_POSDIV_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON2, RG_HDMITX_EN_MBIAS,
+ RG_HDMITX_EN_MBIAS);
+ usleep_range(80, 100);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, RG_HTPLL_EN, RG_HTPLL_EN);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON2, RG_HDMITX_EN_TX_CKLDO,
+ RG_HDMITX_EN_TX_CKLDO);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, (0xf << RG_HDMITX_EN_SLDO),
+ RG_HDMITX_EN_SLDO_MASK);
+ usleep_range(80, 100);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON2, RG_HDMITX_MBIAS_LPF_EN,
+ RG_HDMITX_MBIAS_LPF_EN);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON2, RG_HDMITX_EN_TX_POSDIV,
+ RG_HDMITX_EN_TX_POSDIV);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, (0xf << RG_HDMITX_EN_SER),
+ RG_HDMITX_EN_SER_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, (0xf << RG_HDMITX_EN_PRED),
+ RG_HDMITX_EN_PRED_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, (0xf << RG_HDMITX_EN_DRV),
+ RG_HDMITX_EN_DRV_MASK);
+ usleep_range(80, 100);
+}
+
+static void mtk_hdmi_phy_disable_tmds(struct mtk_hdmi_phy *hdmi_phy)
+{
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, 0, RG_HDMITX_EN_DRV_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, 0, RG_HDMITX_EN_PRED_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, 0, RG_HDMITX_EN_SER_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON2, 0, RG_HDMITX_EN_TX_POSDIV);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON2, 0, RG_HDMITX_MBIAS_LPF_EN);
+ usleep_range(80, 100);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON0, 0, RG_HDMITX_EN_SLDO_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON2, 0, RG_HDMITX_EN_TX_CKLDO);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, 0, RG_HTPLL_EN);
+ usleep_range(80, 100);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON2, 0, RG_HDMITX_EN_MBIAS);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, 0, RG_HTPLL_POSDIV_MASK);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON6, 0, RG_HTPLL_RLH_EN);
+ mtk_hdmi_pll_mask(hdmi_phy, HDMI_CON7, 0, RG_HTPLL_AUTOK_EN);
+ usleep_range(80, 100);
+}
+
+static int mtk_hdmi_phy_power_on(struct phy *phy)
+{
+ struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy);
+ int ret;
+
+ ret = clk_prepare_enable(hdmi_phy->pll);
+ if (ret < 0)
+ return ret;
+
+ mtk_hdmi_phy_enable_tmds(hdmi_phy);
+
+ return 0;
+}
+
+static int mtk_hdmi_phy_power_off(struct phy *phy)
+{
+ struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy);
+
+ mtk_hdmi_phy_disable_tmds(hdmi_phy);
+ clk_disable_unprepare(hdmi_phy->pll);
+
+ return 0;
+}
+
+static const struct phy_ops mtk_hdmi_phy_dev_ops = {
+ .power_on = mtk_hdmi_phy_power_on,
+ .power_off = mtk_hdmi_phy_power_off,
+ .owner = THIS_MODULE,
+};
+
+struct mtk_hdmi_phy_conf mtk_hdmi_phy_2701_conf = {
+ .tz_enabled = false,
+ .hdmi_phy_clk_ops = &mtk_hdmi_phy_pll_ops,
+ .hdmi_phy_dev_ops = &mtk_hdmi_phy_dev_ops,
+};
+
+MODULE_AUTHOR("Chunhui Dai <chunhui.dai@xxxxxxxxxxxx>");
+MODULE_DESCRIPTION("MediaTek HDMI PHY Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c b/drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c
index 51cb9cfb6646..1a35fdd405d8 100644
--- a/drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c
+++ b/drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c
@@ -21,6 +21,7 @@
#include <linux/phy/phy.h>
#include <linux/platform_device.h>
#include <linux/types.h>
+#include "mtk_hdmi.h"

#define HDMI_CON0 0x00
#define RG_HDMITX_PLL_EN BIT(31)
@@ -123,20 +124,6 @@
#define RGS_HDMITX_5T1_EDG (0xf << 4)
#define RGS_HDMITX_PLUG_TST BIT(0)

-struct mtk_hdmi_phy {
- void __iomem *regs;
- struct device *dev;
- struct clk *pll;
- struct clk_hw pll_hw;
- unsigned long pll_rate;
- u8 drv_imp_clk;
- u8 drv_imp_d2;
- u8 drv_imp_d1;
- u8 drv_imp_d0;
- u32 ibias;
- u32 ibias_up;
-};
-
static const u8 PREDIV[3][4] = {
{0x0, 0x0, 0x0, 0x0}, /* 27Mhz */
{0x1, 0x1, 0x1, 0x1}, /* 74Mhz */
@@ -367,7 +354,7 @@ static unsigned long mtk_hdmi_pll_recalc_rate(struct clk_hw *hw,
return hdmi_phy->pll_rate;
}

-static const struct clk_ops mtk_hdmi_pll_ops = {
+static const struct clk_ops mtk_hdmi_phy_pll_ops = {
.prepare = mtk_hdmi_pll_prepare,
.unprepare = mtk_hdmi_pll_unprepare,
.set_rate = mtk_hdmi_pll_set_rate,
@@ -414,118 +401,16 @@ static int mtk_hdmi_phy_power_off(struct phy *phy)
return 0;
}

-static const struct phy_ops mtk_hdmi_phy_ops = {
+static const struct phy_ops mtk_hdmi_phy_dev_ops = {
.power_on = mtk_hdmi_phy_power_on,
.power_off = mtk_hdmi_phy_power_off,
.owner = THIS_MODULE,
};

-static int mtk_hdmi_phy_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct mtk_hdmi_phy *hdmi_phy;
- struct resource *mem;
- struct clk *ref_clk;
- const char *ref_clk_name;
- struct clk_init_data clk_init = {
- .ops = &mtk_hdmi_pll_ops,
- .num_parents = 1,
- .parent_names = (const char * const *)&ref_clk_name,
- .flags = CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE,
- };
- struct phy *phy;
- struct phy_provider *phy_provider;
- int ret;
-
- hdmi_phy = devm_kzalloc(dev, sizeof(*hdmi_phy), GFP_KERNEL);
- if (!hdmi_phy)
- return -ENOMEM;
-
- mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- hdmi_phy->regs = devm_ioremap_resource(dev, mem);
- if (IS_ERR(hdmi_phy->regs)) {
- ret = PTR_ERR(hdmi_phy->regs);
- dev_err(dev, "Failed to get memory resource: %d\n", ret);
- return ret;
- }
-
- ref_clk = devm_clk_get(dev, "pll_ref");
- if (IS_ERR(ref_clk)) {
- ret = PTR_ERR(ref_clk);
- dev_err(&pdev->dev, "Failed to get PLL reference clock: %d\n",
- ret);
- return ret;
- }
- ref_clk_name = __clk_get_name(ref_clk);
-
- ret = of_property_read_string(dev->of_node, "clock-output-names",
- &clk_init.name);
- if (ret < 0) {
- dev_err(dev, "Failed to read clock-output-names: %d\n", ret);
- return ret;
- }
-
- hdmi_phy->pll_hw.init = &clk_init;
- hdmi_phy->pll = devm_clk_register(dev, &hdmi_phy->pll_hw);
- if (IS_ERR(hdmi_phy->pll)) {
- ret = PTR_ERR(hdmi_phy->pll);
- dev_err(dev, "Failed to register PLL: %d\n", ret);
- return ret;
- }
-
- ret = of_property_read_u32(dev->of_node, "mediatek,ibias",
- &hdmi_phy->ibias);
- if (ret < 0) {
- dev_err(&pdev->dev, "Failed to get ibias: %d\n", ret);
- return ret;
- }
-
- ret = of_property_read_u32(dev->of_node, "mediatek,ibias_up",
- &hdmi_phy->ibias_up);
- if (ret < 0) {
- dev_err(&pdev->dev, "Failed to get ibias up: %d\n", ret);
- return ret;
- }
-
- dev_info(dev, "Using default TX DRV impedance: 4.2k/36\n");
- hdmi_phy->drv_imp_clk = 0x30;
- hdmi_phy->drv_imp_d2 = 0x30;
- hdmi_phy->drv_imp_d1 = 0x30;
- hdmi_phy->drv_imp_d0 = 0x30;
-
- phy = devm_phy_create(dev, NULL, &mtk_hdmi_phy_ops);
- if (IS_ERR(phy)) {
- dev_err(dev, "Failed to create HDMI PHY\n");
- return PTR_ERR(phy);
- }
- phy_set_drvdata(phy, hdmi_phy);
-
- phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
- if (IS_ERR(phy_provider))
- return PTR_ERR(phy_provider);
-
- hdmi_phy->dev = dev;
- return of_clk_add_provider(dev->of_node, of_clk_src_simple_get,
- hdmi_phy->pll);
-}
-
-static int mtk_hdmi_phy_remove(struct platform_device *pdev)
-{
- return 0;
-}
-
-static const struct of_device_id mtk_hdmi_phy_match[] = {
- { .compatible = "mediatek,mt8173-hdmi-phy", },
- {},
-};
-
-struct platform_driver mtk_hdmi_phy_driver = {
- .probe = mtk_hdmi_phy_probe,
- .remove = mtk_hdmi_phy_remove,
- .driver = {
- .name = "mediatek-hdmi-phy",
- .of_match_table = mtk_hdmi_phy_match,
- },
+struct mtk_hdmi_phy_conf mtk_hdmi_phy_8173_conf = {
+ .tz_enabled = true,
+ .hdmi_phy_clk_ops = &mtk_hdmi_phy_pll_ops,
+ .hdmi_phy_dev_ops = &mtk_hdmi_phy_dev_ops,
};

MODULE_AUTHOR("Jie Qiu <jie.qiu@xxxxxxxxxxxx>");
--
2.12.5