[PATCH RFC 3/8] drm: hisilicon: Add the link to DRM/KMS interface

From: Xinwei Kong
Date: Tue Sep 15 2015 - 05:41:29 EST

This patch makes the link with DRM/KMS interface by initializing the drm
plane/crtc/encoder/connector and adding the drm plane/crtc/encoder/
connector helper.

This patch is compatible with different hisilicon platform such as Hikey
series of boards and other series of boards.

Signed-off-by: Xinliang Liu <xinliang.liu@xxxxxxxxxx>
Signed-off-by: Xinwei Kong <kong.kongxinwei@xxxxxxxxxxxxx>
Signed-off-by: Andy Green <andy.green@xxxxxxxxxx>
Signed-off-by: Jiwen Qi <qijiwen@xxxxxxxxxxxxx>
Signed-off-by: Yu Gong <gongyu@xxxxxxxxxxxxx>
---
drivers/gpu/drm/hisilicon/Makefile | 4 +
drivers/gpu/drm/hisilicon/hisi_ade.c | 44 +++++
drivers/gpu/drm/hisilicon/hisi_ade_reg.h | 27 +++
drivers/gpu/drm/hisilicon/hisi_drm_connector.c | 90 ++++++++++
drivers/gpu/drm/hisilicon/hisi_drm_connector.h | 25 +++
drivers/gpu/drm/hisilicon/hisi_drm_crtc.c | 179 ++++++++++++++++++
drivers/gpu/drm/hisilicon/hisi_drm_crtc.h | 45 +++++
drivers/gpu/drm/hisilicon/hisi_drm_drv.h | 36 ++++
drivers/gpu/drm/hisilicon/hisi_drm_dsi.c | 13 ++
drivers/gpu/drm/hisilicon/hisi_drm_encoder.c | 65 +++++++
drivers/gpu/drm/hisilicon/hisi_drm_encoder.h | 22 +++
drivers/gpu/drm/hisilicon/hisi_drm_plane.c | 240 +++++++++++++++++++++++++
drivers/gpu/drm/hisilicon/hisi_drm_plane.h | 51 ++++++
13 files changed, 841 insertions(+)
create mode 100644 drivers/gpu/drm/hisilicon/hisi_ade_reg.h
create mode 100644 drivers/gpu/drm/hisilicon/hisi_drm_connector.c
create mode 100644 drivers/gpu/drm/hisilicon/hisi_drm_connector.h
create mode 100644 drivers/gpu/drm/hisilicon/hisi_drm_crtc.c
create mode 100644 drivers/gpu/drm/hisilicon/hisi_drm_crtc.h
create mode 100644 drivers/gpu/drm/hisilicon/hisi_drm_drv.h
create mode 100644 drivers/gpu/drm/hisilicon/hisi_drm_encoder.c
create mode 100644 drivers/gpu/drm/hisilicon/hisi_drm_encoder.h
create mode 100644 drivers/gpu/drm/hisilicon/hisi_drm_plane.c
create mode 100644 drivers/gpu/drm/hisilicon/hisi_drm_plane.h

diff --git a/drivers/gpu/drm/hisilicon/Makefile b/drivers/gpu/drm/hisilicon/Makefile
index 3f042fd..aa522f8 100644
--- a/drivers/gpu/drm/hisilicon/Makefile
+++ b/drivers/gpu/drm/hisilicon/Makefile
@@ -1,6 +1,10 @@
hisi-drm-y := hisi_drm_drv.o \
hisi_ade.o \
hisi_drm_dsi.o \
+ hisi_drm_plane.o \
+ hisi_drm_crtc.o \
+ hisi_drm_encoder.o \
+ hisi_drm_connector.o \
hisi_drm_fb.o \

obj-$(CONFIG_DRM_HISI) += hisi-drm.o
diff --git a/drivers/gpu/drm/hisilicon/hisi_ade.c b/drivers/gpu/drm/hisilicon/hisi_ade.c
index 9b58d20..148ed2f 100644
--- a/drivers/gpu/drm/hisilicon/hisi_ade.c
+++ b/drivers/gpu/drm/hisilicon/hisi_ade.c
@@ -15,6 +15,16 @@

#include <drm/drm_gem_cma_helper.h>

+#include "hisi_drm_plane.h"
+#include "hisi_drm_crtc.h"
+#include "hisi_ade_reg.h"
+
+#define PRIMARY_CH (ADE_CH1)
+
+struct ade_crtc {
+ struct hisi_crtc base;
+};
+
struct ade_hardware_context {
void __iomem *base;
void __iomem *media_base;
@@ -30,6 +40,8 @@ struct ade_hardware_context {
};

struct hisi_ade {
+ struct ade_crtc acrtc;
+ struct hisi_plane hplane[ADE_CH_NUM];
struct ade_hardware_context ctx;
};

@@ -99,6 +111,38 @@ static int ade_dts_parse(struct platform_device *pdev,

static int ade_bind(struct device *dev, struct device *master, void *data)
{
+ struct hisi_ade *ade = dev_get_drvdata(dev);
+ struct ade_hardware_context *ctx = &ade->ctx;
+ struct hisi_crtc *hcrtc = &ade->acrtc.base;
+ struct drm_device *drm_dev = (struct drm_device *)data;
+ struct hisi_plane *hplane;
+ enum drm_plane_type type;
+ int ret;
+ int i;
+
+ /*
+ * plane init
+ * TODO: Now only support primary plane, overlay planes
+ * need to do.
+ */
+ for (i = 0; i < 1; i++) {
+ hplane = &ade->hplane[i];
+ hplane->ch = i;
+ hplane->ctx = ctx;
+ type = i == PRIMARY_CH ? DRM_PLANE_TYPE_PRIMARY :
+ DRM_PLANE_TYPE_OVERLAY;
+
+ ret = hisi_drm_plane_init(drm_dev, hplane, type);
+ if (ret)
+ return ret;
+ }
+
+ /* crtc init */
+ hcrtc->ctx = ctx;
+ ret = hisi_drm_crtc_init(drm_dev, hcrtc, &ade->hplane[PRIMARY_CH].base);
+ if (ret)
+ return ret;
+
return 0;
}

diff --git a/drivers/gpu/drm/hisilicon/hisi_ade_reg.h b/drivers/gpu/drm/hisilicon/hisi_ade_reg.h
new file mode 100644
index 0000000..bdf3c3b
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/hisi_ade_reg.h
@@ -0,0 +1,27 @@
+/*
+ * Hisilicon Terminal SoCs drm driver
+ *
+ * Copyright (c) 2014-2015 Hisilicon Limited.
+ * Author: Xinwei Kong <kong.kongxinwei@xxxxxxxxxxxxx> for hisilicon
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __HISI_ADE_REG_H__
+#define __HISI_ADE_REG_H__
+
+enum ade_channel {
+ ADE_CH1 = 0, /* channel 1 for primary plane */
+ ADE_CH2,
+ ADE_CH3,
+ ADE_CH4,
+ ADE_CH5,
+ ADE_CH6,
+ ADE_DISP,
+ ADE_CH_NUM
+};
+
+#endif
diff --git a/drivers/gpu/drm/hisilicon/hisi_drm_connector.c b/drivers/gpu/drm/hisilicon/hisi_drm_connector.c
new file mode 100644
index 0000000..62efdc7
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/hisi_drm_connector.c
@@ -0,0 +1,90 @@
+/*
+ * Hisilicon Terminal SoCs drm driver
+ *
+ * Copyright (c) 2014-2015 Hisilicon Limited.
+ * Author: Xinwei Kong <kong.kongxinwei@xxxxxxxxxxxxx> for hisilicon
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_encoder_slave.h>
+#include <drm/drm_atomic_helper.h>
+
+#include "hisi_drm_encoder.h"
+#include "hisi_drm_connector.h"
+
+#define to_hisi_connector(connector) \
+ container_of(connector, struct hisi_connector, connector)
+
+int hisi_drm_connector_mode_valid(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ int ret = MODE_OK;
+
+ return ret;
+}
+
+struct drm_encoder *
+hisi_drm_best_encoder(struct drm_connector *connector)
+{
+ struct hisi_connector *hconnector = to_hisi_connector(connector);
+ struct drm_encoder *encoder = hconnector->encoder;
+
+ return encoder;
+}
+
+int hisi_drm_get_modes(struct drm_connector *connector)
+{
+ int count = 0;
+
+ return count;
+}
+
+static struct drm_connector_helper_funcs hisi_drm_connector_helper_funcs = {
+ .get_modes = hisi_drm_get_modes,
+ .best_encoder = hisi_drm_best_encoder,
+ .mode_valid = hisi_drm_connector_mode_valid,
+};
+
+void hisi_drm_connector_destroy(struct drm_connector *connector)
+{
+ drm_connector_unregister(connector);
+ drm_connector_cleanup(connector);
+}
+
+enum drm_connector_status
+hisi_drm_detect(struct drm_connector *connector, bool force)
+{
+ enum drm_connector_status status = connector_status_unknown;
+
+ return status;
+}
+
+static struct drm_connector_funcs hisi_drm_connector_funcs = {
+ .dpms = drm_atomic_helper_connector_dpms,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .detect = hisi_drm_detect,
+ .destroy = hisi_drm_connector_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,
+};
+
+void hisi_drm_connector_init(struct drm_device *dev,
+ struct drm_encoder *encoder,
+ struct drm_connector *connector)
+{
+ connector->polled = DRM_CONNECTOR_POLL_HPD;
+ connector->dpms = DRM_MODE_DPMS_OFF;
+ drm_connector_init(encoder->dev, connector, &hisi_drm_connector_funcs,
+ DRM_MODE_CONNECTOR_HDMIA);
+ drm_connector_helper_add(connector, &hisi_drm_connector_helper_funcs);
+ drm_connector_register(connector);
+ drm_mode_connector_attach_encoder(connector, encoder);
+
+ drm_mode_config_reset(dev);
+}
diff --git a/drivers/gpu/drm/hisilicon/hisi_drm_connector.h b/drivers/gpu/drm/hisilicon/hisi_drm_connector.h
new file mode 100644
index 0000000..114391c
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/hisi_drm_connector.h
@@ -0,0 +1,25 @@
+/*
+ * Hisilicon Terminal SoCs drm driver
+ *
+ * Copyright (c) 2014-2015 Hisilicon Limited.
+ * Author: Xinwei Kong <kong.kongxinwei@xxxxxxxxxxxxx> for hisilicon
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __HISI_DRM_CONNECTOR_H__
+#define __HISI_DRM_CONNECTOR_H__
+
+struct hisi_connector {
+ struct drm_connector connector;
+ struct drm_encoder *encoder;
+};
+
+void hisi_drm_connector_init(struct drm_device *dev,
+ struct drm_encoder *encoder,
+ struct drm_connector *connector);
+
+#endif
diff --git a/drivers/gpu/drm/hisilicon/hisi_drm_crtc.c b/drivers/gpu/drm/hisilicon/hisi_drm_crtc.c
new file mode 100644
index 0000000..ad13614
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/hisi_drm_crtc.c
@@ -0,0 +1,179 @@
+/*
+ * Hisilicon Terminal SoCs drm driver
+ *
+ * Copyright (c) 2014-2015 Hisilicon Limited.
+ * Author: Xinwei Kong <kong.kongxinwei@xxxxxxxxxxxxx> for hisilicon
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_atomic_helper.h>
+
+#include "hisi_drm_drv.h"
+#include "hisi_drm_crtc.h"
+
+static void hisi_drm_crtc_enable(struct drm_crtc *crtc)
+{
+}
+
+static void hisi_drm_crtc_disable(struct drm_crtc *crtc)
+{
+}
+
+static void hisi_drm_crtc_mode_prepare(struct drm_crtc *crtc)
+{
+}
+
+static bool hisi_drm_crtc_mode_fixup(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adj_mode)
+{
+ bool ret = true;
+
+ return ret;
+}
+
+static void hisi_drm_crtc_mode_set_nofb(struct drm_crtc *crtc)
+{
+}
+
+static void hisi_crtc_atomic_begin(struct drm_crtc *crtc)
+{
+}
+
+static void hisi_crtc_atomic_flush(struct drm_crtc *crtc)
+{
+}
+
+static const struct drm_crtc_helper_funcs crtc_helper_funcs = {
+ .enable = hisi_drm_crtc_enable,
+ .disable = hisi_drm_crtc_disable,
+ .prepare = hisi_drm_crtc_mode_prepare,
+ .mode_fixup = hisi_drm_crtc_mode_fixup,
+ .mode_set_nofb = hisi_drm_crtc_mode_set_nofb,
+ .atomic_begin = hisi_crtc_atomic_begin,
+ .atomic_flush = hisi_crtc_atomic_flush,
+};
+
+static void hisi_drm_crtc_destroy(struct drm_crtc *c)
+{
+ drm_crtc_cleanup(c);
+}
+
+static void hisi_crtc_atomic_reset(struct drm_crtc *crtc)
+{
+ struct hisi_crtc_state *state;
+
+ if (crtc->state)
+ kfree(to_hisi_crtc_state(crtc->state));
+
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (!state)
+ return;
+
+ /* set to default value */
+ state->comp_type = COMPOSITION_UNKNOWN;
+
+ crtc->state = &state->base;
+ crtc->state->crtc = crtc;
+}
+
+static struct drm_crtc_state *
+hisi_crtc_atomic_duplicate_state(struct drm_crtc *crtc)
+{
+ struct hisi_crtc_state *state;
+ struct hisi_crtc_state *copy;
+
+ if (WARN_ON(!crtc->state))
+ return NULL;
+
+ state = to_hisi_crtc_state(crtc->state);
+ copy = kmemdup(state, sizeof(*state), GFP_KERNEL);
+ if (!copy)
+ return NULL;
+
+ __drm_atomic_helper_crtc_duplicate_state(crtc, &copy->base);
+
+ return &copy->base;
+}
+
+static void hisi_crtc_atomic_destroy_state(struct drm_crtc *crtc,
+ struct drm_crtc_state *state)
+{
+ __drm_atomic_helper_crtc_destroy_state(crtc, state);
+ kfree(to_hisi_crtc_state(state));
+}
+
+static int hisi_crtc_atomic_set_property(struct drm_crtc *crtc,
+ struct drm_crtc_state *state,
+ struct drm_property *property,
+ uint64_t val)
+{
+ struct hisi_drm_private *priv = crtc->dev->dev_private;
+ struct hisi_crtc_state *hstate = to_hisi_crtc_state(state);
+
+ if (property == priv->comp_type_prop)
+ hstate->comp_type = val;
+ else
+ return -EINVAL;
+
+ return 0;
+}
+
+static int hisi_crtc_atomic_get_property(struct drm_crtc *crtc,
+ const struct drm_crtc_state *state,
+ struct drm_property *property,
+ uint64_t *val)
+{
+ struct hisi_drm_private *priv = crtc->dev->dev_private;
+ struct hisi_crtc_state *hstate = to_hisi_crtc_state(state);
+
+ if (property == priv->comp_type_prop)
+ *val = hstate->comp_type;
+ else
+ return -EINVAL;
+
+ return 0;
+}
+
+static const struct drm_crtc_funcs crtc_funcs = {
+ .destroy = hisi_drm_crtc_destroy,
+ .set_config = drm_atomic_helper_set_config,
+ .page_flip = drm_atomic_helper_page_flip,
+ .reset = hisi_crtc_atomic_reset,
+ .set_property = drm_atomic_helper_crtc_set_property,
+ .atomic_duplicate_state = hisi_crtc_atomic_duplicate_state,
+ .atomic_destroy_state = hisi_crtc_atomic_destroy_state,
+ .atomic_set_property = hisi_crtc_atomic_set_property,
+ .atomic_get_property = hisi_crtc_atomic_get_property,
+};
+
+int hisi_drm_crtc_init(struct drm_device *dev,
+ struct hisi_crtc *hcrtc,
+ struct drm_plane *plane)
+{
+ struct hisi_crtc_ops *ops = hcrtc->ops;
+ int ret;
+
+ ret = drm_crtc_init_with_planes(dev, &hcrtc->base, plane,
+ NULL, &crtc_funcs);
+ if (ret) {
+ DRM_ERROR("failed to init crtc.\n");
+ return ret;
+ }
+
+ drm_crtc_helper_add(&hcrtc->base, &crtc_helper_funcs);
+
+ if (ops->install_properties) {
+ ret = ops->install_properties(dev, hcrtc);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
diff --git a/drivers/gpu/drm/hisilicon/hisi_drm_crtc.h b/drivers/gpu/drm/hisilicon/hisi_drm_crtc.h
new file mode 100644
index 0000000..989cb1f
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/hisi_drm_crtc.h
@@ -0,0 +1,45 @@
+/*
+ * Hisilicon Terminal SoCs drm driver
+ *
+ * Copyright (c) 2014-2015 Hisilicon Limited.
+ * Author: Xinwei Kong <kong.kongxinwei@xxxxxxxxxxxxx> for hisilicon
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __HISI_DRM_CRTC_H__
+#define __HISI_DRM_CRTC_H__
+
+#define to_hisi_crtc_state(state) \
+ container_of(state, struct hisi_crtc_state, base)
+
+enum composotion_type {
+ COMPOSITION_UNKNOWN = 0,
+ COMPOSITION_GLES = 1,
+ COMPOSITION_HWC = 2,
+ COMPOSITION_MIXED = 3
+};
+
+struct hisi_crtc {
+ struct drm_crtc base;
+ void *ops;
+ void *ctx;
+};
+
+struct hisi_crtc_ops {
+ int (*install_properties)(struct drm_device *dev,
+ struct hisi_crtc *hcrtc);
+};
+
+struct hisi_crtc_state {
+ struct drm_crtc_state base;
+ u8 comp_type;
+};
+
+int hisi_drm_crtc_init(struct drm_device *dev, struct hisi_crtc *crtc,
+ struct drm_plane *plane);
+
+#endif
diff --git a/drivers/gpu/drm/hisilicon/hisi_drm_drv.h b/drivers/gpu/drm/hisilicon/hisi_drm_drv.h
new file mode 100644
index 0000000..0b96357
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/hisi_drm_drv.h
@@ -0,0 +1,36 @@
+/*
+ * Hisilicon Terminal SoCs drm driver
+ *
+ * Copyright (c) 2014-2015 Hisilicon Limited.
+ * Author:
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __HISI_DRM_DRV_H__
+#define __HISI_DRM_DRV_H__
+
+struct hisi_drm_private {
+ struct hisi_drm_fbdev *fbdev;
+
+ /* plane properties */
+ struct drm_property *zpos_prop;
+ struct drm_property *alpha_prop;
+ struct drm_property *blend_prop;
+
+ /*
+ * read only capabilities properties
+ * 0: unsupport
+ * 1: support
+ */
+ struct drm_property *cap_scl_prop;
+ struct drm_property *cap_rot_prop;
+
+ /* crtc properties */
+ struct drm_property *comp_type_prop;
+};
+
+#endif /* __HISI_DRM_DRV_H__ */
diff --git a/drivers/gpu/drm/hisilicon/hisi_drm_dsi.c b/drivers/gpu/drm/hisilicon/hisi_drm_dsi.c
index a8dbaad..046fd8e 100644
--- a/drivers/gpu/drm/hisilicon/hisi_drm_dsi.c
+++ b/drivers/gpu/drm/hisilicon/hisi_drm_dsi.c
@@ -16,9 +16,15 @@
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_encoder_slave.h>

+#include "hisi_drm_encoder.h"
+#include "hisi_drm_connector.h"
+
#define DSI_24BITS_1 (5)

struct hisi_dsi {
+ struct hisi_encoder hisi_encoder;
+ struct hisi_connector hisi_connector;
+
u32 lanes;
u32 format;
u32 date_enable_pol;
@@ -39,8 +45,15 @@ struct hisi_dsi_context {
static int hisi_dsi_bind(struct device *dev, struct device *master,
void *data)
{
+ struct hisi_dsi_context *ctx = dev_get_drvdata(dev);
int ret = 0;

+ ctx->dev = data;
+
+ hisi_drm_encoder_init(ctx->dev, &ctx->dsi.hisi_encoder.base.base);
+
+ hisi_drm_connector_init(ctx->dev, &ctx->dsi.hisi_encoder.base.base,
+ &ctx->dsi.hisi_connector.connector);
return ret;
}

diff --git a/drivers/gpu/drm/hisilicon/hisi_drm_encoder.c b/drivers/gpu/drm/hisilicon/hisi_drm_encoder.c
new file mode 100644
index 0000000..89fc73d
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/hisi_drm_encoder.c
@@ -0,0 +1,65 @@
+/*
+ * Hisilicon Terminal SoCs drm driver
+ *
+ * Copyright (c) 2014-2015 Hisilicon Limited.
+ * Author: Xinwei Kong <kong.kongxinwei@xxxxxxxxxxxxx> for hisilicon
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_encoder_slave.h>
+
+#include "hisi_drm_encoder.h"
+
+void hisi_drm_encoder_disable(struct drm_encoder *encoder)
+{
+}
+
+void hisi_drm_encoder_enable(struct drm_encoder *encoder)
+{
+}
+
+void hisi_drm_encoder_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+}
+
+bool
+hisi_drm_encoder_mode_fixup(struct drm_encoder *encoder,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ bool ret = true;
+
+ return ret;
+}
+
+void hisi_drm_encoder_destroy(struct drm_encoder *encoder)
+{
+}
+
+static struct drm_encoder_helper_funcs hisi_encoder_helper_funcs = {
+ .mode_fixup = hisi_drm_encoder_mode_fixup,
+ .mode_set = hisi_drm_encoder_mode_set,
+ .enable = hisi_drm_encoder_enable,
+ .disable = hisi_drm_encoder_disable
+};
+
+static struct drm_encoder_funcs hisi_encoder_funcs = {
+ .destroy = hisi_drm_encoder_destroy
+};
+
+void hisi_drm_encoder_init(struct drm_device *dev,
+ struct drm_encoder *encoder)
+{
+ encoder->possible_crtcs = 1;
+
+ drm_encoder_init(dev, encoder, &hisi_encoder_funcs,
+ DRM_MODE_ENCODER_TMDS);
+ drm_encoder_helper_add(encoder, &hisi_encoder_helper_funcs);
+}
diff --git a/drivers/gpu/drm/hisilicon/hisi_drm_encoder.h b/drivers/gpu/drm/hisilicon/hisi_drm_encoder.h
new file mode 100644
index 0000000..31c04e4
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/hisi_drm_encoder.h
@@ -0,0 +1,22 @@
+/*
+ * Hisilicon Terminal SoCs drm driver
+ *
+ * Copyright (c) 2014-2015 Hisilicon Limited.
+ * Author: Xinwei Kong <kong.kongxinwei@xxxxxxxxxxxxx> for hisilicon
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __HISI_DRM_ENCODER_H__
+#define __HISI_DRM_ENCODER_H__
+
+struct hisi_encoder {
+ struct drm_encoder_slave base;
+};
+
+void hisi_drm_encoder_init(struct drm_device *dev, struct drm_encoder *encoder);
+
+#endif
diff --git a/drivers/gpu/drm/hisilicon/hisi_drm_plane.c b/drivers/gpu/drm/hisilicon/hisi_drm_plane.c
new file mode 100644
index 0000000..af040b6
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/hisi_drm_plane.c
@@ -0,0 +1,240 @@
+/*
+ * Hisilicon Terminal SoCs drm driver
+ *
+ * Copyright (c) 2014-2015 Hisilicon Limited.
+ * Author: Xinwei Kong <kong.kongxinwei@xxxxxxxxxxxxx> for hisilicon
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm_plane_helper.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_atomic.h>
+
+#include "hisi_drm_drv.h"
+#include "hisi_drm_plane.h"
+
+#define to_hisi_plane(plane) \
+ container_of(plane, struct hisi_plane, base)
+
+static void hisi_plane_atomic_disable(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
+{
+}
+
+static void hisi_plane_atomic_update(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
+{
+}
+
+int hisi_plane_atomic_check(struct drm_plane *plane,
+ struct drm_plane_state *state)
+{
+ struct drm_framebuffer *fb = state->fb;
+ struct drm_crtc *crtc = state->crtc;
+ struct drm_crtc_state *crtc_state;
+ u32 src_x = state->src_x >> 16;
+ u32 src_y = state->src_y >> 16;
+ u32 src_w = state->src_w >> 16;
+ u32 src_h = state->src_h >> 16;
+ u32 crtc_w = state->crtc_w;
+ u32 crtc_h = state->crtc_h;
+ int crtc_x = state->crtc_x;
+ int crtc_y = state->crtc_y;
+
+ if (!crtc || !fb)
+ return 0;
+
+ if (state->rotation != BIT(DRM_ROTATE_0)) {
+ DRM_ERROR("Rotation not support!!!\n");
+ return -EINVAL;
+ }
+
+ crtc_state = drm_atomic_get_crtc_state(state->state, crtc);
+ if (IS_ERR(crtc_state))
+ return PTR_ERR(crtc_state);
+
+ if (src_w != crtc_w || src_h != crtc_h) {
+ DRM_ERROR("Scale not support!!!\n");
+ return -EINVAL;
+ }
+
+ if (src_x + src_w > fb->width ||
+ src_y + src_h > fb->height)
+ return -EINVAL;
+
+ if (crtc_x < 0 || crtc_y < 0)
+ return -EINVAL;
+
+ if (crtc_x + crtc_w > crtc_state->adjusted_mode.hdisplay ||
+ crtc_y + crtc_h > crtc_state->adjusted_mode.vdisplay)
+ return -EINVAL;
+
+ return 0;
+}
+
+void hisi_plane_cleanup_fb(struct drm_plane *plane,
+ struct drm_framebuffer *fb,
+ const struct drm_plane_state *old_state)
+{
+}
+
+int hisi_plane_prepare_fb(struct drm_plane *p,
+ struct drm_framebuffer *fb,
+ const struct drm_plane_state *new_state)
+{
+ return 0;
+}
+
+static const struct drm_plane_helper_funcs hisi_plane_helper_funcs = {
+ .prepare_fb = hisi_plane_prepare_fb,
+ .cleanup_fb = hisi_plane_cleanup_fb,
+ .atomic_check = hisi_plane_atomic_check,
+ .atomic_update = hisi_plane_atomic_update,
+ .atomic_disable = hisi_plane_atomic_disable,
+};
+
+void hisi_plane_destroy(struct drm_plane *plane)
+{
+ drm_plane_cleanup(plane);
+}
+
+static void hisi_plane_atomic_reset(struct drm_plane *plane)
+{
+ struct hisi_plane_state *state;
+
+ if (plane->state && plane->state->fb)
+ drm_framebuffer_unreference(plane->state->fb);
+
+ if (plane->state)
+ kfree(to_hisi_plane_state(plane->state));
+
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (!state)
+ return;
+
+ /* set to default value */
+ state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY ? 0 :
+ drm_plane_index(plane);
+ state->base.rotation = BIT(DRM_ROTATE_0);
+ state->alpha = 255;
+ state->blend = ALPHA_BLENDING_NONE;
+
+ plane->state = &state->base;
+ plane->state->plane = plane;
+}
+
+static struct drm_plane_state *
+hisi_plane_atomic_duplicate_state(struct drm_plane *plane)
+{
+ struct hisi_plane_state *hstate;
+ struct hisi_plane_state *copy;
+
+ if (WARN_ON(!plane->state))
+ return NULL;
+
+ hstate = to_hisi_plane_state(plane->state);
+ copy = kmemdup(hstate, sizeof(*hstate), GFP_KERNEL);
+ if (!copy)
+ return NULL;
+
+ __drm_atomic_helper_plane_duplicate_state(plane, &copy->base);
+
+ return &copy->base;
+}
+
+static void hisi_plane_atomic_destroy_state(struct drm_plane *plane,
+ struct drm_plane_state *state)
+{
+ __drm_atomic_helper_plane_destroy_state(plane, state);
+ kfree(to_hisi_plane_state(state));
+}
+
+static int hisi_plane_atomic_set_property(struct drm_plane *plane,
+ struct drm_plane_state *state,
+ struct drm_property *property,
+ uint64_t val)
+{
+ struct hisi_drm_private *priv = plane->dev->dev_private;
+ struct hisi_plane_state *hstate = to_hisi_plane_state(state);
+
+ if (property == priv->zpos_prop)
+ hstate->zpos = val;
+ else if (property == priv->alpha_prop)
+ hstate->alpha = val;
+ else if (property == priv->blend_prop)
+ hstate->blend = val;
+ else
+ return -EINVAL;
+
+ return 0;
+}
+
+static int hisi_plane_atomic_get_property(struct drm_plane *plane,
+ const struct drm_plane_state *state,
+ struct drm_property *property,
+ uint64_t *val)
+{
+ struct hisi_drm_private *priv = plane->dev->dev_private;
+ const struct hisi_plane_state *hstate = to_hisi_plane_state(state);
+
+ if (property == priv->zpos_prop)
+ *val = hstate->zpos;
+ else if (property == priv->alpha_prop)
+ *val = hstate->alpha;
+ else if (property == priv->blend_prop)
+ *val = hstate->blend;
+ else
+ return -EINVAL;
+
+ return 0;
+}
+
+static struct drm_plane_funcs hisi_plane_funcs = {
+ .update_plane = drm_atomic_helper_update_plane,
+ .disable_plane = drm_atomic_helper_disable_plane,
+ .set_property = drm_atomic_helper_plane_set_property,
+ .destroy = hisi_plane_destroy,
+ .reset = hisi_plane_atomic_reset,
+ .atomic_duplicate_state = hisi_plane_atomic_duplicate_state,
+ .atomic_destroy_state = hisi_plane_atomic_destroy_state,
+ .atomic_set_property = hisi_plane_atomic_set_property,
+ .atomic_get_property = hisi_plane_atomic_get_property,
+};
+
+int hisi_drm_plane_init(struct drm_device *dev,
+ struct hisi_plane *hplane,
+ enum drm_plane_type type)
+{
+ struct hisi_plane_funcs *ops = hplane->ops;
+ const u32 *fmts;
+ u32 fmts_cnt;
+ int ret = 0;
+
+ /* get properties */
+ fmts_cnt = ops->get_properties(hplane->ch, &fmts);
+ if (ret)
+ return ret;
+ ret = drm_universal_plane_init(dev, &hplane->base, 1,
+ &hisi_plane_funcs,
+ fmts, fmts_cnt, type);
+ if (ret) {
+ DRM_ERROR("fail to init plane, ch: %d\n", hplane->ch);
+ return ret;
+ }
+
+ drm_plane_helper_add(&hplane->base, &hisi_plane_helper_funcs);
+
+ /* install overlay plane properties */
+ if (type == DRM_PLANE_TYPE_OVERLAY && ops->install_properties) {
+ ret = ops->install_properties(dev, hplane);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
diff --git a/drivers/gpu/drm/hisilicon/hisi_drm_plane.h b/drivers/gpu/drm/hisilicon/hisi_drm_plane.h
new file mode 100644
index 0000000..70ee845
--- /dev/null
+++ b/drivers/gpu/drm/hisilicon/hisi_drm_plane.h
@@ -0,0 +1,51 @@
+/*
+ * Hisilicon Terminal SoCs drm driver
+ *
+ * Copyright (c) 2014-2015 Hisilicon Limited.
+ * Author: Xinwei Kong <kong.kongxinwei@xxxxxxxxxxxxx> for hisilicon
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __HISI_DRM_PLANE_H__
+#define __HISI_DRM_PLANE_H__
+
+#define to_hisi_plane_state(s) container_of(s, struct hisi_plane_state, base)
+
+enum {
+ /* no blending */
+ ALPHA_BLENDING_NONE = 0x0100,
+ /* ONE / ONE_MINUS_SRC_ALPHA */
+ ALPHA_BLENDING_PREMULT = 0x0105,
+ /* SRC_ALPHA / ONE_MINUS_SRC_ALPHA */
+ ALPHA_BLENDING_COVERAGE = 0x0405
+};
+
+struct hisi_plane {
+ struct drm_plane base;
+ void *ops;
+ void *ctx;
+ u8 ch; /* channel or pipe */
+};
+
+struct hisi_plane_funcs {
+ u32 (*get_properties)(u8 ch, const u32 **formats);
+ int (*install_properties)(struct drm_device *dev,
+ struct hisi_plane *hplane);
+};
+
+int hisi_drm_plane_init(struct drm_device *dev, struct hisi_plane *hplane,
+ enum drm_plane_type type);
+
+/* plane structs */
+struct hisi_plane_state {
+ struct drm_plane_state base;
+ u8 zpos; /* z order */
+ u8 alpha; /* Alpha value applied to the whole plane */
+ u32 blend; /* blending cases: none, premult and coverage */
+};
+
+#endif
--
1.9.1


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