This patch implements exynos_hdmi_cdf.c which is a glue component between
exynos DRM and hdmi cdf panel. It is a platform driver register through
exynos_drm_drv.c. Exynos_hdmi.c is modified to register hdmi as display panel.
exynos_hdmi_cdf.c registers for exynos hdmi display entity and if successful,
proceeds for mode setting.
Signed-off-by: Rahul Sharma <rahul.sharma@xxxxxxxxxxx>
---
drivers/gpu/drm/exynos/Kconfig | 6 +
drivers/gpu/drm/exynos/Makefile | 1 +
drivers/gpu/drm/exynos/exynos_drm_drv.c | 24 ++
drivers/gpu/drm/exynos/exynos_drm_drv.h | 1 +
drivers/gpu/drm/exynos/exynos_hdmi.c | 445 ++++++++++++++++---------------
drivers/gpu/drm/exynos/exynos_hdmi_cdf.c | 370 +++++++++++++++++++++++++
include/video/exynos_hdmi.h | 25 ++
7 files changed, 658 insertions(+), 214 deletions(-)
create mode 100644 drivers/gpu/drm/exynos/exynos_hdmi_cdf.c
create mode 100644 include/video/exynos_hdmi.h
diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig
index 1d1f1e5..309e62a 100644
--- a/drivers/gpu/drm/exynos/Kconfig
+++ b/drivers/gpu/drm/exynos/Kconfig
@@ -34,6 +34,12 @@ config DRM_EXYNOS_HDMI
help
Choose this option if you want to use Exynos HDMI for DRM.
+config DRM_EXYNOS_HDMI_CDF
+ bool "Exynos DRM HDMI using CDF"
+ depends on DRM_EXYNOS_HDMI && DRM_EXYNOS && !VIDEO_SAMSUNG_S5P_TV
+ help
+ Choose this option if you want to use Exynos HDMI for DRM using CDF.
+
config DRM_EXYNOS_VIDI
bool "Exynos DRM Virtual Display"
depends on DRM_EXYNOS
diff --git a/drivers/gpu/drm/exynos/Makefile b/drivers/gpu/drm/exynos/Makefile
index 639b49e..e946ed6 100644
--- a/drivers/gpu/drm/exynos/Makefile
+++ b/drivers/gpu/drm/exynos/Makefile
@@ -20,5 +20,6 @@ exynosdrm-$(CONFIG_DRM_EXYNOS_IPP) += exynos_drm_ipp.o
exynosdrm-$(CONFIG_DRM_EXYNOS_FIMC) += exynos_drm_fimc.o
exynosdrm-$(CONFIG_DRM_EXYNOS_ROTATOR) += exynos_drm_rotator.o
exynosdrm-$(CONFIG_DRM_EXYNOS_GSC) += exynos_drm_gsc.o
+exynosdrm-$(CONFIG_DRM_EXYNOS_HDMI_CDF) += exynos_hdmi_cdf.o
obj-$(CONFIG_DRM_EXYNOS) += exynosdrm.o
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 3da5c2d..7876c3c 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -40,6 +40,9 @@
/* platform device pointer for eynos drm device. */
static struct platform_device *exynos_drm_pdev;
+/* platform device pointer for eynos hdmi cdf device. */
+static struct platform_device *exynos_hdmi_cdf_pdev;
+
static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
{
struct exynos_drm_private *private;
@@ -331,6 +334,18 @@ static int __init exynos_drm_init(void)
#endif
#ifdef CONFIG_DRM_EXYNOS_HDMI
+
+ ret = platform_driver_register(&hdmi_cdf_driver);
+ if (ret < 0)
+ goto out_hdmi_cdf_driver;
+
+ exynos_hdmi_cdf_pdev = platform_device_register_simple(
+ "exynos-hdmi-cdf", -1, NULL, 0);
+ if (IS_ERR_OR_NULL(exynos_hdmi_cdf_pdev)) {
+ ret = PTR_ERR(exynos_hdmi_cdf_pdev);
+ goto out_hdmi_cdf_device;
+ }
+
ret = platform_driver_register(&hdmi_driver);
if (ret < 0)
goto out_hdmi;
@@ -438,6 +453,13 @@ out_common_hdmi:
out_mixer:
platform_driver_unregister(&hdmi_driver);
out_hdmi:
+
+out_hdmi_cdf_device:
+ platform_device_unregister(exynos_hdmi_cdf_pdev);
+
+out_hdmi_cdf_driver:
+ platform_driver_unregister(&hdmi_cdf_driver);
+
#endif
#ifdef CONFIG_DRM_EXYNOS_FIMD
@@ -480,6 +502,8 @@ static void __exit exynos_drm_exit(void)
platform_driver_unregister(&exynos_drm_common_hdmi_driver);
platform_driver_unregister(&mixer_driver);
platform_driver_unregister(&hdmi_driver);
+ platform_driver_unregister(&hdmi_cdf_driver);
+ platform_device_unregister(exynos_hdmi_cdf_pdev);
#endif
#ifdef CONFIG_DRM_EXYNOS_VIDI
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
index b9e51bc..961fe14 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -332,6 +332,7 @@ void exynos_platform_device_hdmi_unregister(void);
extern struct platform_driver fimd_driver;
extern struct platform_driver hdmi_driver;
extern struct platform_driver mixer_driver;
+extern struct platform_driver hdmi_cdf_driver;
extern struct platform_driver exynos_drm_common_hdmi_driver;
extern struct platform_driver vidi_driver;
extern struct platform_driver g2d_driver;
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 6f844b1..548cd32 100755
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -34,13 +34,12 @@
#include <linux/regulator/consumer.h>
#include <linux/io.h>
#include <linux/of_gpio.h>
+#include <video/display.h>
+#include "video/exynos_hdmi.h"
#include <plat/gpio-cfg.h>
#include <drm/exynos_drm.h>
-#include "exynos_drm_drv.h"
-#include "exynos_drm_hdmi.h"
-
#include "exynos_hdmi.h"
#include <linux/gpio.h>
@@ -157,14 +156,12 @@ struct hdmi_v14_conf {
struct hdmi_context {
struct device *dev;
- struct drm_device *drm_dev;
bool hpd;
bool powered;
bool dvi_mode;
struct mutex hdmi_mutex;
void __iomem *regs;
- void *parent_ctx;
int external_irq;
int internal_irq;
@@ -180,6 +177,7 @@ struct hdmi_context {
int hpd_gpio;
enum hdmi_type type;
+ struct display_entity entity;
};
/* HDMI Version 1.3 */
@@ -973,39 +971,8 @@ static void hdmi_reg_infoframe(struct hdmi_context *hdata,
}
}
-static bool hdmi_is_connected(void *ctx)
-{
- struct hdmi_context *hdata = ctx;
-
- return hdata->hpd;
-}
-
-static int hdmi_get_edid(void *ctx, struct drm_connector *connector,
- u8 *edid, int len)
-{
- struct edid *raw_edid;
- struct hdmi_context *hdata = ctx;
-
- DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
-
- if (!hdata->ddc_port)
- return -ENODEV;
-
- raw_edid = drm_get_edid(connector, hdata->ddc_port->adapter);
- if (raw_edid) {
- hdata->dvi_mode = !drm_detect_hdmi_monitor(raw_edid);
- memcpy(edid, raw_edid, min((1 + raw_edid->extensions)
- * EDID_LENGTH, len));
- DRM_DEBUG_KMS("%s : width[%d] x height[%d]\n",
- (hdata->dvi_mode ? "dvi monitor" : "hdmi monitor"),
- raw_edid->width_cm, raw_edid->height_cm);
- kfree(raw_edid);
- } else {
- return -ENODEV;
- }
-
- return 0;
-}
+extern int generic_drm_get_edid(struct i2c_adapter *adapter,
+ struct display_entity_edid *edid);
static int hdmi_v13_check_timing(struct fb_videomode *check_timing)
{
@@ -1061,22 +1028,6 @@ static int hdmi_v14_check_timing(struct fb_videomode *check_timing)
return -EINVAL;
}
-static int hdmi_check_timing(void *ctx, struct fb_videomode *timing)
-{
- struct hdmi_context *hdata = ctx;
-
- DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
-
- DRM_DEBUG_KMS("[%d]x[%d] [%d]Hz [%x]\n", timing->xres,
- timing->yres, timing->refresh,
- timing->vmode);
-
- if (hdata->type == HDMI_TYPE13)
- return hdmi_v13_check_timing(timing);
- else
- return hdmi_v14_check_timing(timing);
-}
-
static void hdmi_set_acr(u32 freq, u8 *acr)
{
u32 n, cts;
@@ -1143,15 +1094,22 @@ static void hdmi_reg_acr(struct hdmi_context *hdata, u8 *acr)
hdmi_reg_writeb(hdata, HDMI_ACR_CON, 4);
}
-static void hdmi_audio_init(struct hdmi_context *hdata)
+static void hdmi_spdif_audio_init(struct hdmi_context *hdata,
+ const struct display_entity_audio_params *params)
+{
+ DRM_ERROR("SPDIF AUDIO NOT IMPLEMENTED YET");
+}
+
+static void hdmi_i2s_audio_init(struct hdmi_context *hdata,
+ const struct display_entity_audio_params *params)
{
u32 sample_rate, bits_per_sample, frame_size_code;
u32 data_num, bit_ch, sample_frq;
u32 val;
u8 acr[7];
- sample_rate = 44100;
- bits_per_sample = 16;
+ sample_rate = params->sf;
+ bits_per_sample = params->bits_per_sample;
frame_size_code = 0;
switch (bits_per_sample) {
@@ -1685,8 +1643,6 @@ static void hdmi_conf_apply(struct hdmi_context *hdata)
hdmi_conf_init(hdata);
mutex_unlock(&hdata->hdmi_mutex);
- hdmi_audio_init(hdata);
-
/* setting core registers */
hdmi_timing_apply(hdata);
hdmi_audio_control(hdata, true);
@@ -1694,58 +1650,6 @@ static void hdmi_conf_apply(struct hdmi_context *hdata)
hdmi_regs_dump(hdata, "start");
}
-static void hdmi_mode_fixup(void *ctx, struct drm_connector *connector,
- const struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
-{
- struct drm_display_mode *m;
- struct hdmi_context *hdata = ctx;
- int index;
-
- DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
-
- drm_mode_set_crtcinfo(adjusted_mode, 0);
-
- if (hdata->type == HDMI_TYPE13)
- index = hdmi_v13_conf_index(adjusted_mode);
- else
- index = hdmi_v14_find_phy_conf(adjusted_mode->clock * 1000);
-
- /* just return if user desired mode exists. */
- if (index >= 0)
- return;
-
- /*
- * otherwise, find the most suitable mode among modes and change it
- * to adjusted_mode.
- */
- list_for_each_entry(m, &connector->modes, head) {
- if (hdata->type == HDMI_TYPE13)
- index = hdmi_v13_conf_index(m);
- else
- index = hdmi_v14_find_phy_conf(m->clock * 1000);
-
- if (index >= 0) {
- struct drm_mode_object base;
- struct list_head head;
-
- DRM_INFO("desired mode doesn't exist so\n");
- DRM_INFO("use the most suitable mode among modes.\n");
-
- DRM_DEBUG_KMS("Adjusted Mode: [%d]x[%d] [%d]Hz\n",
- m->hdisplay, m->vdisplay, m->vrefresh);
-
- /* preserve display mode header while copying. */
- head = adjusted_mode->head;
- base = adjusted_mode->base;
- memcpy(adjusted_mode, m, sizeof(*m));
- adjusted_mode->head = head;
- adjusted_mode->base = base;
- break;
- }
- }
-}
-
static void hdmi_set_reg(u8 *reg_pair, int num_bytes, u32 value)
{
int i;
@@ -1862,42 +1766,6 @@ static void hdmi_v14_mode_set(struct hdmi_context *hdata,
}
-static void hdmi_mode_set(void *ctx, void *mode)
-{
- struct hdmi_context *hdata = ctx;
- int conf_idx;
-
- DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
-
- if (hdata->type == HDMI_TYPE13) {
- conf_idx = hdmi_v13_conf_index(mode);
- if (conf_idx >= 0)
- hdata->cur_conf = conf_idx;
- else
- DRM_DEBUG_KMS("not supported mode\n");
- } else {
- hdmi_v14_mode_set(hdata, mode);
- }
-}
-
-static void hdmi_get_max_resol(void *ctx, unsigned int *width,
- unsigned int *height)
-{
- DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
-
- *width = MAX_WIDTH;
- *height = MAX_HEIGHT;
-}
-
-static void hdmi_commit(void *ctx)
-{
- struct hdmi_context *hdata = ctx;
-
- DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
-
- hdmi_conf_apply(hdata);
-}
-
static void hdmi_poweron(struct hdmi_context *hdata)
{
struct hdmi_resources *res = &hdata->res;
@@ -1953,62 +1821,215 @@ out:
mutex_unlock(&hdata->hdmi_mutex);
}
-static void hdmi_dpms(void *ctx, int mode)
+int hdmi_get_size(struct display_entity *ent,
+ unsigned int *width, unsigned int *height)
{
- struct hdmi_context *hdata = ctx;
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
- DRM_DEBUG_KMS("[%d] %s mode %d\n", __LINE__, __func__, mode);
+ *width = MAX_WIDTH;
+ *height = MAX_HEIGHT;
- switch (mode) {
- case DRM_MODE_DPMS_ON:
- if (pm_runtime_suspended(hdata->dev))
- pm_runtime_get_sync(hdata->dev);
- break;
- case DRM_MODE_DPMS_STANDBY:
- case DRM_MODE_DPMS_SUSPEND:
- case DRM_MODE_DPMS_OFF:
+ return 0;
+}
+
+void hdmi_send_hpdevent(struct display_entity *entity, int hpd)
+{
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ display_entity_notify_event_subscriber(entity,
+ DISPLAY_ENTITY_HDMI_HOTPLUG, hpd);
+}
+
+int hdmi_get_hpdstate(struct display_entity *entity, unsigned int *hpd_state)
+{
+ struct hdmi_context *hdata =
+ container_of(entity, struct hdmi_context, entity);
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ if (hpd_state) {
+ *hpd_state = hdata->hpd;
+ return 0;
+ }
+ return -1;
+}
+
+int hdmi_get_edid(struct display_entity *entity,
+ struct display_entity_edid *edid)
+{
+ struct hdmi_context *hdata =
+ container_of(entity, struct hdmi_context, entity);
+ struct edid *raw_edid;
+ int ret;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ if (!hdata->ddc_port)
+ return -ENODEV;
+
+ ret = generic_drm_get_edid(hdata->ddc_port->adapter, edid);
+ if (ret) {
+ DRM_ERROR("[%d]%s, Edid Read Fail!!! ret = %d\n",
+ __LINE__, __func__, ret);
+ return -EINVAL;
+ }
+
+ raw_edid = (struct edid *)edid->edid;
+
+ if (raw_edid)
+ hdata->dvi_mode = !drm_detect_hdmi_monitor(raw_edid);
+ else
+ return -ENODEV;
+
+ return 0;
+}
+
+int hdmi_check_mode(struct display_entity *entity,
+ const struct videomode *mode)
+{
+ struct hdmi_context *hdata =
+ container_of(entity, struct hdmi_context, entity);
+ struct fb_videomode *timing = (struct fb_videomode *)mode;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ DRM_DEBUG_KMS("[%d]x[%d] [%d]Hz [%x]\n", timing->xres,
+ timing->yres, timing->refresh,
+ timing->vmode);
+
+ if (hdata->type == HDMI_TYPE13)
+ return hdmi_v13_check_timing(timing);
+ else
+ return hdmi_v14_check_timing(timing);
+}
+
+int hdmi_set_mode(struct display_entity *entity,
+ const struct videomode *mode)
+{
+ struct hdmi_context *hdata =
+ container_of(entity, struct hdmi_context, entity);
+ struct drm_display_mode *m = (struct drm_display_mode *)mode;
+ int conf_idx;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ if (hdata->type == HDMI_TYPE13) {
+ conf_idx = hdmi_v13_conf_index(m);
+ if (conf_idx >= 0)
+ hdata->cur_conf = conf_idx;
+ else
+ DRM_DEBUG_KMS("not supported mode\n");
+ } else {
+ hdmi_v14_mode_set(hdata, m);
+ }
+
+ return 0;
+}
+
+int hdmi_update(struct display_entity *entity)
+{
+ struct hdmi_context *hdata =
+ container_of(entity, struct hdmi_context, entity);
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ hdmi_conf_apply(hdata);
+ return 0;
+}
+
+int hdmi_set_state(struct display_entity *entity,
+ enum display_entity_state state)
+{
+ struct hdmi_context *hdata =
+ container_of(entity, struct hdmi_context, entity);
+
+ DRM_DEBUG_KMS("[%d] %s %d\n", __LINE__, __func__, state);
+
+ switch (state) {
+ case DISPLAY_ENTITY_STATE_OFF:
+ case DISPLAY_ENTITY_STATE_STANDBY:
if (!pm_runtime_suspended(hdata->dev))
pm_runtime_put_sync(hdata->dev);
break;
- default:
- DRM_DEBUG_KMS("unknown dpms mode: %d\n", mode);
+
+ case DISPLAY_ENTITY_STATE_ON:
+ if (pm_runtime_suspended(hdata->dev))
+ pm_runtime_get_sync(hdata->dev);
break;
+ default:
+ return -EINVAL;
}
+ return 0;
+}
+
+int hdmi_init_audio(struct display_entity *entity,
+ const struct display_entity_audio_params *params)
+{
+ struct hdmi_context *hdata =
+ container_of(entity, struct hdmi_context, entity);
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ if (params->type == DISPLAY_ENTITY_AUDIO_I2S)
+ hdmi_i2s_audio_init(hdata, params);
+ else if (params->type == DISPLAY_ENTITY_AUDIO_SPDIF)
+ hdmi_spdif_audio_init(hdata, params);
+ else
+ return -EINVAL;
+
+ return 0;
+}
+
+
+int hdmi_set_audiostate(struct display_entity *entity,
+ enum display_entity_audiostate state)
+{
+ struct hdmi_context *hdata =
+ container_of(entity, struct hdmi_context, entity);
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ if (state == DISPLAY_ENTITY_AUDIOSTATE_ON)
+ hdmi_audio_control(hdata, true);
+ else
+ hdmi_audio_control(hdata, false);
+
+ return 0;
}
-static struct exynos_hdmi_ops hdmi_ops = {
- /* display */
- .is_connected = hdmi_is_connected,
- .get_edid = hdmi_get_edid,
- .check_timing = hdmi_check_timing,
-
- /* manager */
- .mode_fixup = hdmi_mode_fixup,
- .mode_set = hdmi_mode_set,
- .get_max_resol = hdmi_get_max_resol,
- .commit = hdmi_commit,
- .dpms = hdmi_dpms,
+struct display_entity_control_ops entity_ctrl_ops = {
+ .get_size = hdmi_get_size,
+ .update = hdmi_update,
+ .set_state = hdmi_set_state,
+ .set_mode = hdmi_set_mode,
+};
+
+struct display_entity_hdmi_control_ops hdmi_ctrl_ops = {
+ .get_edid = hdmi_get_edid,
+ .check_mode = hdmi_check_mode,
+ .init_audio = hdmi_init_audio,
+ .set_audiostate = hdmi_set_audiostate,
+};
+
+struct exynos_hdmi_control_ops exynos_hdmi_ctrl_ops = {
+ .get_hpdstate = hdmi_get_hpdstate,
};
static irqreturn_t hdmi_external_irq_thread(int irq, void *arg)
{
- struct exynos_drm_hdmi_context *ctx = arg;
- struct hdmi_context *hdata = ctx->ctx;
+ struct hdmi_context *hdata = arg;
mutex_lock(&hdata->hdmi_mutex);
hdata->hpd = gpio_get_value(hdata->hpd_gpio);
mutex_unlock(&hdata->hdmi_mutex);
- if (ctx->drm_dev)
- drm_helper_hpd_irq_event(ctx->drm_dev);
+ hdmi_send_hpdevent(&hdata->entity, hdata->hpd);
return IRQ_HANDLED;
}
static irqreturn_t hdmi_internal_irq_thread(int irq, void *arg)
{
- struct exynos_drm_hdmi_context *ctx = arg;
- struct hdmi_context *hdata = ctx->ctx;
+ struct hdmi_context *hdata = arg;
u32 intc_flag;
intc_flag = hdmi_reg_read(hdata, HDMI_INTC_FLAG);
@@ -2017,16 +2038,17 @@ static irqreturn_t hdmi_internal_irq_thread(int irq, void *arg)
DRM_DEBUG_KMS("unplugged\n");
hdmi_reg_writemask(hdata, HDMI_INTC_FLAG, ~0,
HDMI_INTC_FLAG_HPD_UNPLUG);
+ hdata->hpd = 0;
+ hdmi_send_hpdevent(&hdata->entity, hdata->hpd);
}
if (intc_flag & HDMI_INTC_FLAG_HPD_PLUG) {
DRM_DEBUG_KMS("plugged\n");
hdmi_reg_writemask(hdata, HDMI_INTC_FLAG, ~0,
HDMI_INTC_FLAG_HPD_PLUG);
+ hdata->hpd = 1;
+ hdmi_send_hpdevent(&hdata->entity, hdata->hpd);
}
- if (ctx->drm_dev)
- drm_helper_hpd_irq_event(ctx->drm_dev);
-
return IRQ_HANDLED;
}
@@ -2176,16 +2198,20 @@ static struct of_device_id hdmi_match_types[] = {
};
#endif
+static void hdmi_release(struct display_entity *entity)
+{
+ DRM_DEBUG_KMS("[%d][%s]\n", __LINE__, __func__);
+}
+
static int hdmi_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- struct exynos_drm_hdmi_context *drm_hdmi_ctx;
struct hdmi_context *hdata;
struct s5p_hdmi_platform_data *pdata;
struct resource *res;
int ret;
- DRM_DEBUG_KMS("[%d]\n", __LINE__);
+ DRM_DEBUG_KMS("[%d][%s]\n", __LINE__, __func__);
if (pdev->dev.of_node) {
pdata = drm_hdmi_dt_parse_pdata(dev);
@@ -2202,13 +2228,6 @@ static int hdmi_probe(struct platform_device *pdev)
return -EINVAL;
}
- drm_hdmi_ctx = devm_kzalloc(&pdev->dev, sizeof(*drm_hdmi_ctx),
- GFP_KERNEL);
- if (!drm_hdmi_ctx) {
- DRM_ERROR("failed to allocate common hdmi context.\n");
- return -ENOMEM;
- }
-
hdata = devm_kzalloc(&pdev->dev, sizeof(struct hdmi_context),
GFP_KERNEL);
if (!hdata) {
@@ -2218,10 +2237,7 @@ static int hdmi_probe(struct platform_device *pdev)
mutex_init(&hdata->hdmi_mutex);
- drm_hdmi_ctx->ctx = (void *)hdata;
- hdata->parent_ctx = (void *)drm_hdmi_ctx;
-
- platform_set_drvdata(pdev, drm_hdmi_ctx);
+ platform_set_drvdata(pdev, hdata);
if (dev->of_node) {
const struct of_device_id *match;
@@ -2299,7 +2315,7 @@ static int hdmi_probe(struct platform_device *pdev)
ret = request_threaded_irq(hdata->external_irq, NULL,
hdmi_external_irq_thread, IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
- "hdmi_external", drm_hdmi_ctx);
+ "hdmi_external", hdata);
if (ret) {
DRM_ERROR("failed to register hdmi external interrupt\n");
goto err_hdmiphy;
@@ -2307,24 +2323,31 @@ static int hdmi_probe(struct platform_device *pdev)
ret = request_threaded_irq(hdata->internal_irq, NULL,
hdmi_internal_irq_thread, IRQF_ONESHOT,
- "hdmi_internal", drm_hdmi_ctx);
+ "hdmi_internal", hdata);
if (ret) {
DRM_ERROR("failed to register hdmi internal interrupt\n");
goto err_free_irq;
}
- /* Attach HDMI Driver to common hdmi. */
- exynos_hdmi_drv_attach(drm_hdmi_ctx);
+ pm_runtime_enable(dev);
- /* register specific callbacks to common hdmi. */
- exynos_hdmi_ops_register(&hdmi_ops);
+ hdata->entity.dev = &pdev->dev;
+ hdata->entity.release = hdmi_release;
+ hdata->entity.ops.ctrl = &entity_ctrl_ops;
+ hdata->entity.opt_ctrl.hdmi = &hdmi_ctrl_ops;
- pm_runtime_enable(dev);
+ hdata->entity.private = &exynos_hdmi_ctrl_ops;
+
+ ret = display_entity_register(&hdata->entity);
+ if (ret < 0) {
+ DRM_ERROR("[%d][%s]\n", __LINE__, __func__);
+ return ret;
+ }
return 0;
err_free_irq:
- free_irq(hdata->external_irq, drm_hdmi_ctx);
+ free_irq(hdata->external_irq, hdata);
err_hdmiphy:
i2c_del_driver(&hdmiphy_driver);
err_ddc:
@@ -2335,8 +2358,7 @@ err_ddc:
static int hdmi_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- struct exynos_drm_hdmi_context *ctx = platform_get_drvdata(pdev);
- struct hdmi_context *hdata = ctx->ctx;
+ struct hdmi_context *hdata = platform_get_drvdata(pdev);
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
@@ -2357,8 +2379,7 @@ static int hdmi_remove(struct platform_device *pdev)
#ifdef CONFIG_PM_SLEEP
static int hdmi_suspend(struct device *dev)
{
- struct exynos_drm_hdmi_context *ctx = get_hdmi_context(dev);
- struct hdmi_context *hdata = ctx->ctx;
+ struct hdmi_context *hdata = get_hdmi_context(dev);
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
@@ -2366,8 +2387,7 @@ static int hdmi_suspend(struct device *dev)
disable_irq(hdata->external_irq);
hdata->hpd = false;
- if (ctx->drm_dev)
- drm_helper_hpd_irq_event(ctx->drm_dev);
+ hdmi_send_hpdevent(&hdata->entity, hdata->hpd);
if (pm_runtime_suspended(dev)) {
DRM_DEBUG_KMS("%s : Already suspended\n", __func__);
@@ -2381,8 +2401,7 @@ static int hdmi_suspend(struct device *dev)
static int hdmi_resume(struct device *dev)
{
- struct exynos_drm_hdmi_context *ctx = get_hdmi_context(dev);
- struct hdmi_context *hdata = ctx->ctx;
+ struct hdmi_context *hdata = get_hdmi_context(dev);
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
@@ -2405,8 +2424,7 @@ static int hdmi_resume(struct device *dev)
#ifdef CONFIG_PM_RUNTIME
static int hdmi_runtime_suspend(struct device *dev)
{
- struct exynos_drm_hdmi_context *ctx = get_hdmi_context(dev);
- struct hdmi_context *hdata = ctx->ctx;
+ struct hdmi_context *hdata = get_hdmi_context(dev);
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
hdmi_poweroff(hdata);
@@ -2416,8 +2434,7 @@ static int hdmi_runtime_suspend(struct device *dev)
static int hdmi_runtime_resume(struct device *dev)
{
- struct exynos_drm_hdmi_context *ctx = get_hdmi_context(dev);
- struct hdmi_context *hdata = ctx->ctx;
+ struct hdmi_context *hdata = get_hdmi_context(dev);
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
hdmi_poweron(hdata);
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi_cdf.c b/drivers/gpu/drm/exynos/exynos_hdmi_cdf.c
new file mode 100644
index 0000000..e1c862f
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_hdmi_cdf.c
@@ -0,0 +1,370 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * Authors:
+ * Seung-Woo Kim <sw0312.kim@xxxxxxxxxxx>
+ * Inki Dae <inki.dae@xxxxxxxxxxx>
+ * Joonyoung Shim <jy0922.shim@xxxxxxxxxxx>
+ *
+ * Based on drivers/media/video/s5p-tv/hdmi_drv.c
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_crtc_helper.h>
+
+#include "regs-hdmi.h"
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <video/display.h>
+#include "video/exynos_hdmi.h"
+
+#include <drm/exynos_drm.h>
+#include "exynos_drm_drv.h"
+#include "exynos_drm_hdmi.h"
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+
+#include "exynos_hdmi.h"
+
+#define get_hdmi_context(dev) platform_get_drvdata(to_platform_device(dev))
+
+struct hdmi_cdf_context {
+ struct device *dev;
+ struct drm_device *drm_dev;
+ unsigned int hpd;
+ struct display_entity *entity;
+ struct display_entity_notifier notf;
+ struct display_event_subscriber subscriber;
+ void *parent_ctx;
+};
+
+extern bool hdmi_cdf_is_connected(void *ctx)
+{
+ struct hdmi_cdf_context *hdata = (struct hdmi_cdf_context *)ctx;
+
+ DRM_DEBUG_KMS("[%d] %s hpd %d\n", __LINE__, __func__, hdata->hpd);
+ return (bool)hdata->hpd;
+}
+
+extern int hdmi_cdf_get_edid(void *ctx, struct drm_connector *connector,
+ u8 *edid, int len)
+{
+ struct hdmi_cdf_context *hdata = (struct hdmi_cdf_context *)ctx;
+ struct display_entity_edid edid_st;
+ struct edid *raw_edid;
+ int ret;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ ret = display_entity_hdmi_get_edid(hdata->entity, &edid_st);
+ if (ret) {
+ DRM_ERROR("[%d]%s, Edid Read Fail!!! ret = %d\n",
+ __LINE__, __func__, ret);
+ return -EINVAL;
+ }
+
+ raw_edid = (struct edid *)edid_st.edid;
+
+ if (raw_edid) {
+ memcpy(edid, raw_edid, min(edid_st.len, len));
+ kfree(raw_edid);
+ } else {
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+extern int hdmi_cdf_check_timing(void *ctx, struct fb_videomode *timing)
+{
+ struct hdmi_cdf_context *hdata = (struct hdmi_cdf_context *)ctx;
+ int ret;
+
+ ret = display_entity_hdmi_check_mode(hdata->entity,
+ (struct videomode *)timing);
+ if (ret) {
+ DRM_DEBUG_KMS("[%d]%s, Mode NOT Supported! %dx%d@%d%s\n",
+ __LINE__, __func__, timing->xres, timing->yres,
+ timing->refresh, timing->flag
+ & FB_VMODE_INTERLACED ? "I" : "P");
+ return -EINVAL;
+ }
+
+ DRM_DEBUG_KMS("[%d]%s, Mode Supported! %dx%d@%d%s\n", __LINE__,
+ __func__, timing->xres, timing->yres, timing->refresh,
+ timing->flag & FB_VMODE_INTERLACED ? "I" : "P");
+
+ return 0;
+}
+
+extern int hdmi_cdf_power_on(void *ctx, int mode)
+{
+ return 0;
+}
+
+extern void hdmi_cdf_mode_fixup(void *ctx, struct drm_connector *connector,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ struct hdmi_cdf_context *hdata = (struct hdmi_cdf_context *)ctx;
+ struct drm_display_mode *m;
+ struct fb_videomode timing;
+ int index;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ drm_mode_set_crtcinfo(adjusted_mode, 0);
+
+ timing.xres = adjusted_mode->hdisplay;
+ timing.yres = adjusted_mode->vdisplay;
+ timing.refresh = adjusted_mode->vrefresh;
+ timing.pixclock = adjusted_mode->clock * 1000;
+ timing.flag = ((adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) ?
+ FB_VMODE_INTERLACED : 0);
+
+ index = display_entity_hdmi_check_mode(hdata->entity,
+ (struct videomode *)&timing);
+
+ /* just return if user desired mode exists. */
+ if (index == 0)
+ return;
+
+ /*
+ * otherwise, find the most suitable mode among modes and change it
+ * to adjusted_mode.
+ */
+ list_for_each_entry(m, &connector->modes, head) {
+
+ timing.xres = m->hdisplay;
+ timing.yres = m->vdisplay;
+ timing.refresh = m->vrefresh;
+ timing.pixclock = m->clock * 1000;
+ timing.flag = ((m->flags & DRM_MODE_FLAG_INTERLACE) ?
+ FB_VMODE_INTERLACED : 0);
+
+ index = display_entity_hdmi_check_mode(hdata->entity,
+ (struct videomode *)&timing);
+
+ if (index == 0) {
+ struct drm_mode_object base;
+ struct list_head head;
+
+ DRM_INFO("desired mode doesn't exist so\n");
+ DRM_INFO("use most suitable mode.\n");
+
+ DRM_DEBUG_KMS("Adjusted Mode: [%d]x[%d][%d]Hz\n",
+ m->hdisplay, m->vdisplay, m->vrefresh);
+
+ /* preserve display mode header while copying. */
+ head = adjusted_mode->head;
+ base = adjusted_mode->base;
+ memcpy(adjusted_mode, m, sizeof(*m));
+ adjusted_mode->head = head;
+ adjusted_mode->base = base;
+ break;
+ }
+ }
+}
+
+extern void hdmi_cdf_mode_set(void *ctx, void *mode)
+{
+ struct hdmi_cdf_context *hdata = (struct hdmi_cdf_context *)ctx;
+ struct drm_display_mode *m = mode;
+ int ret;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ ret = display_entity_set_mode(hdata->entity, (struct videomode *)m);
+ if (ret) {
+ DRM_DEBUG_KMS("[%d]%s, Mode NOT Set! %dx%d@%d%s\n",
+ __LINE__, __func__, m->hdisplay, m->vdisplay,
+ m->vrefresh, (m->flags & DRM_MODE_FLAG_INTERLACE)
+ ? "I" : "P");
+ }
+}
+
+extern void hdmi_cdf_get_max_resol(void *ctx, unsigned int *width,
+ unsigned int *height)
+{
+ struct hdmi_cdf_context *hdata = (struct hdmi_cdf_context *)ctx;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ display_entity_get_size(hdata->entity, width, height);
+}
+
+extern void hdmi_cdf_commit(void *ctx)
+{
+ struct hdmi_cdf_context *hdata = (struct hdmi_cdf_context *)ctx;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ display_entity_update(hdata->entity);
+}
+
+extern void hdmi_cdf_dpms(void *ctx, int mode)
+{
+ struct hdmi_cdf_context *hdata = (struct hdmi_cdf_context *)ctx;
+ enum display_entity_state state;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ switch (mode) {
+ case DRM_MODE_DPMS_ON:
+ state = DISPLAY_ENTITY_STATE_ON;
+ break;
+ case DRM_MODE_DPMS_STANDBY:
+ state = DISPLAY_ENTITY_STATE_STANDBY;
+ break;
+ case DRM_MODE_DPMS_SUSPEND:
+ case DRM_MODE_DPMS_OFF:
+ state = DISPLAY_ENTITY_STATE_STANDBY;
+ break;
+ default:
+ DRM_DEBUG_KMS("unknown dpms mode: %d\n", mode);
+ return;
+ }
+
+ display_entity_set_state(hdata->entity, state);
+}
+
+void event_notify(struct display_entity *entity,
+ enum display_entity_event_type type, unsigned int value,
+ void *context)
+{
+ struct hdmi_cdf_context *hdata = (struct hdmi_cdf_context *)context;
+ struct exynos_drm_hdmi_context *ctx = get_hdmi_context(hdata->dev);
+
+ if (type == DISPLAY_ENTITY_HDMI_HOTPLUG) {
+ DRM_DEBUG_KMS("[%d][%s] hpd(%d)\n",
+ __LINE__, __func__, value);
+ hdata->hpd = value;
+
+ if (ctx->drm_dev)
+ drm_helper_hpd_irq_event(ctx->drm_dev);
+ }
+}
+
+int display_entity_notification(struct display_entity_notifier *notf,
+ struct display_entity *entity, int status)
+{
+ struct hdmi_cdf_context *hdata = container_of(notf,
+ struct hdmi_cdf_context, notf);
+ struct exynos_hdmi_control_ops *exynos_ops =
+ (struct exynos_hdmi_control_ops *)entity->private;
+
+ if (status != DISPLAY_ENTITY_NOTIFIER_CONNECT && entity)
+ return -EINVAL;
+
+ DRM_DEBUG_KMS("[%d][%s] NOTIFIER_CONNECT\n", __LINE__, __func__);
+
+ hdata->entity = entity;
+
+ hdata->subscriber.context = hdata;
+ hdata->subscriber.notify = event_notify;
+ display_entity_subscribe_event(entity, &hdata->subscriber);
+
+ exynos_ops->get_hpdstate(entity, &hdata->hpd);
+ return 0;
+}
+
+static struct exynos_hdmi_ops hdmi_ops = {
+ /* display */
+ .is_connected = hdmi_cdf_is_connected,
+ .get_edid = hdmi_cdf_get_edid,
+ .check_timing = hdmi_cdf_check_timing,
+
+ /* manager */
+ .mode_fixup = hdmi_cdf_mode_fixup,
+ .mode_set = hdmi_cdf_mode_set,
+ .get_max_resol = hdmi_cdf_get_max_resol,
+ .commit = hdmi_cdf_commit,
+ .dpms = hdmi_cdf_dpms,
+};
+
+static int hdmi_cdf_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *dev_node;
+ struct platform_device *disp_pdev;
+ struct exynos_drm_hdmi_context *drm_hdmi_ctx;
+ struct hdmi_cdf_context *hdata;
+ int ret;
+
+ DRM_DEBUG_KMS("[%d][%s]\n", __LINE__, __func__);
+
+ dev_node = of_find_compatible_node(NULL, NULL,
+ "samsung,exynos5-hdmi");
+ if (!dev_node) {
+ DRM_DEBUG_KMS("[ERROR][%d][%s] dt node not found.\n",
+ __LINE__, __func__);
+ return -EINVAL;
+ }
+
+ disp_pdev = of_find_device_by_node(dev_node);
+ if (!disp_pdev) {
+ DRM_DEBUG_KMS("[ERROR][%d][%s] No pdev\n",
+ __LINE__, __func__);
+ return -EINVAL;
+ }
+
+ drm_hdmi_ctx = devm_kzalloc(&pdev->dev, sizeof(*drm_hdmi_ctx),
+ GFP_KERNEL);
+ if (!drm_hdmi_ctx) {
+ DRM_ERROR("failed to allocate common hdmi context.\n");
+ return -ENOMEM;
+ }
+
+ hdata = devm_kzalloc(&pdev->dev, sizeof(struct hdmi_cdf_context),
+ GFP_KERNEL);
+ if (!hdata) {
+ DRM_ERROR("out of memory\n");
+ return -ENOMEM;
+ }
+
+ drm_hdmi_ctx->ctx = (void *)hdata;
+ hdata->parent_ctx = (void *)drm_hdmi_ctx;
+
+ platform_set_drvdata(pdev, drm_hdmi_ctx);
+
+ /* Attach HDMI Driver to common hdmi. */
+ exynos_hdmi_drv_attach(drm_hdmi_ctx);
+
+ /* register specific callbacks to common hdmi. */
+ exynos_hdmi_ops_register(&hdmi_ops);
+
+ hdata->dev = dev;
+ hdata->notf.dev = &disp_pdev->dev;
+ hdata->notf.notify = display_entity_notification;
+
+ ret = display_entity_register_notifier(&hdata->notf);
+ if (ret) {
+ DRM_DEBUG_KMS("[ERROR][%d][%s] entity registe failed.\n",
+ __LINE__, __func__);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int hdmi_cdf_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+struct platform_driver hdmi_cdf_driver = {
+ .probe = hdmi_cdf_probe,
+ .remove = hdmi_cdf_remove,
+ .driver = {
+ .name = "exynos-hdmi-cdf",
+ .owner = THIS_MODULE,
+ },
+};
+
diff --git a/include/video/exynos_hdmi.h b/include/video/exynos_hdmi.h
new file mode 100644
index 0000000..cc8d613
--- /dev/null
+++ b/include/video/exynos_hdmi.h
@@ -0,0 +1,25 @@
+/*
+ * Display Core
+ *
+ * Copyright (C) 2012 Renesas Solutions Corp.
+ *
+ * Contacts: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
+ *
+ * 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 __EXYNOS_HDMI_H__
+#define __EXYNOS_HDMI_H__
+
+#include <linux/kref.h>
+#include <linux/list.h>
+#include <linux/module.h>
+
+struct exynos_hdmi_control_ops {
+ int (*get_hpdstate)(struct display_entity *entity,
+ unsigned int *hpd_state);
+};
+
+#endif /* __EXYNOS_HDMI_H__ */
--
1.8.0
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