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-rw-r--r--drivers/gpu/drm/exynos/exynos_hdmi.c88
1 files changed, 70 insertions, 18 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 098182ab5df..337e4d69a38 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -76,9 +76,15 @@ enum hdmi_type {
HDMI_TYPE14,
};
+enum hdmi_soc_ver {
+ EXYNOS4,
+ EXYNOS5,
+};
+
struct hdmi_driver_data {
unsigned int type;
unsigned int is_apb_phy:1;
+ unsigned int soc_ver;
};
struct hdmi_resources {
@@ -207,7 +213,7 @@ struct hdmi_context {
int hpd_gpio;
u32 max_pixel_clock;
- enum hdmi_type type;
+ struct hdmi_driver_data *drv_data;
};
struct hdmiphy_config {
@@ -217,14 +223,17 @@ struct hdmiphy_config {
struct hdmi_driver_data exynos4210_hdmi_driver_data = {
.type = HDMI_TYPE13,
+ .soc_ver = EXYNOS4,
};
struct hdmi_driver_data exynos4212_hdmi_driver_data = {
.type = HDMI_TYPE14,
+ .soc_ver = EXYNOS4,
};
struct hdmi_driver_data exynos5_hdmi_driver_data = {
.type = HDMI_TYPE14,
+ .soc_ver = EXYNOS5,
};
/* list of phy config settings */
@@ -722,7 +731,7 @@ static void hdmi_v14_regs_dump(struct hdmi_context *hdata, char *prefix)
static void hdmi_regs_dump(struct hdmi_context *hdata, char *prefix)
{
- if (hdata->type == HDMI_TYPE13)
+ if (hdata->drv_data->type == HDMI_TYPE13)
hdmi_v13_regs_dump(hdata, prefix);
else
hdmi_v14_regs_dump(hdata, prefix);
@@ -851,10 +860,10 @@ static int hdmi_find_phy_conf(struct hdmi_context *hdata, u32 pixel_clock)
const struct hdmiphy_config *confs;
int count, i;
- if (hdata->type == HDMI_TYPE13) {
+ if (hdata->drv_data->type == HDMI_TYPE13) {
confs = hdmiphy_v13_configs;
count = ARRAY_SIZE(hdmiphy_v13_configs);
- } else if (hdata->type == HDMI_TYPE14) {
+ } else if (hdata->drv_data->type == HDMI_TYPE14) {
confs = hdmiphy_v14_configs;
count = ARRAY_SIZE(hdmiphy_v14_configs);
} else
@@ -1039,7 +1048,7 @@ static void hdmi_reg_acr(struct hdmi_context *hdata, u8 *acr)
hdmi_reg_writeb(hdata, HDMI_ACR_CTS1, acr[2]);
hdmi_reg_writeb(hdata, HDMI_ACR_CTS2, acr[1]);
- if (hdata->type == HDMI_TYPE13)
+ if (hdata->drv_data->type == HDMI_TYPE13)
hdmi_reg_writeb(hdata, HDMI_V13_ACR_CON, 4);
else
hdmi_reg_writeb(hdata, HDMI_ACR_CON, 4);
@@ -1143,7 +1152,7 @@ static void hdmi_conf_reset(struct hdmi_context *hdata)
{
u32 reg;
- if (hdata->type == HDMI_TYPE13)
+ if (hdata->drv_data->type == HDMI_TYPE13)
reg = HDMI_V13_CORE_RSTOUT;
else
reg = HDMI_CORE_RSTOUT;
@@ -1177,7 +1186,7 @@ static void hdmi_conf_init(struct hdmi_context *hdata)
HDMI_VID_PREAMBLE_DIS | HDMI_GUARD_BAND_DIS);
}
- if (hdata->type == HDMI_TYPE13) {
+ if (hdata->drv_data->type == HDMI_TYPE13) {
/* choose bluescreen (fecal) color */
hdmi_reg_writeb(hdata, HDMI_V13_BLUE_SCREEN_0, 0x12);
hdmi_reg_writeb(hdata, HDMI_V13_BLUE_SCREEN_1, 0x34);
@@ -1466,7 +1475,7 @@ static void hdmi_v14_mode_apply(struct hdmi_context *hdata)
static void hdmi_mode_apply(struct hdmi_context *hdata)
{
- if (hdata->type == HDMI_TYPE13)
+ if (hdata->drv_data->type == HDMI_TYPE13)
hdmi_v13_mode_apply(hdata);
else
hdmi_v14_mode_apply(hdata);
@@ -1488,7 +1497,7 @@ static void hdmiphy_conf_reset(struct hdmi_context *hdata)
if (hdata->hdmiphy_port)
i2c_master_send(hdata->hdmiphy_port, buffer, 2);
- if (hdata->type == HDMI_TYPE13)
+ if (hdata->drv_data->type == HDMI_TYPE13)
reg = HDMI_V13_PHY_RSTOUT;
else
reg = HDMI_PHY_RSTOUT;
@@ -1502,14 +1511,14 @@ static void hdmiphy_conf_reset(struct hdmi_context *hdata)
static void hdmiphy_poweron(struct hdmi_context *hdata)
{
- if (hdata->type == HDMI_TYPE14)
+ if (hdata->drv_data->type == HDMI_TYPE14)
hdmi_reg_writemask(hdata, HDMI_PHY_CON_0, 0,
HDMI_PHY_POWER_OFF_EN);
}
static void hdmiphy_poweroff(struct hdmi_context *hdata)
{
- if (hdata->type == HDMI_TYPE14)
+ if (hdata->drv_data->type == HDMI_TYPE14)
hdmi_reg_writemask(hdata, HDMI_PHY_CON_0, ~0,
HDMI_PHY_POWER_OFF_EN);
}
@@ -1535,7 +1544,7 @@ static void hdmiphy_conf_apply(struct hdmi_context *hdata)
return;
}
- if (hdata->type == HDMI_TYPE13)
+ if (hdata->drv_data->type == HDMI_TYPE13)
hdmiphy_data = hdmiphy_v13_configs[i].conf;
else
hdmiphy_data = hdmiphy_v14_configs[i].conf;
@@ -1813,7 +1822,7 @@ static void hdmi_mode_set(struct exynos_drm_display *display,
m->vrefresh, (m->flags & DRM_MODE_FLAG_INTERLACE) ?
"INTERLACED" : "PROGERESSIVE");
- if (hdata->type == HDMI_TYPE13)
+ if (hdata->drv_data->type == HDMI_TYPE13)
hdmi_v13_mode_set(hdata, mode);
else
hdmi_v14_mode_set(hdata, mode);
@@ -2041,6 +2050,41 @@ static struct of_device_id hdmi_match_types[] = {
}
};
+static struct device_node *hdmi_legacy_ddc_dt_binding(struct device *dev)
+{
+ struct hdmi_context *ctx = hdmi_display.ctx;
+ const char *exynos4_compatible_str = "samsung,exynos4210-hdmiddc";
+ const char *exynos5_compatible_str = "samsung,exynos5-hdmiddc";
+ const char *compatible_str = NULL;
+ struct device_node *np;
+
+ if (ctx->drv_data->soc_ver == EXYNOS4)
+ compatible_str = exynos4_compatible_str;
+ else
+ compatible_str = exynos5_compatible_str;
+
+ np = of_find_compatible_node(NULL, NULL, compatible_str);
+ if (np)
+ return of_get_next_parent(np);
+
+ return NULL;
+}
+
+static struct device_node *hdmi_legacy_phy_dt_binding(struct device *dev)
+{
+ struct hdmi_context *ctx = hdmi_display.ctx;
+ const char *exynos4_compatible_str = "samsung,exynos4212-hdmiphy";
+ const char *exynos5_compatible_str = "samsung,exynos5-hdmiphy";
+ const char *compatible_str = NULL;
+
+ if (ctx->drv_data->soc_ver == EXYNOS4)
+ compatible_str = exynos4_compatible_str;
+ else
+ compatible_str = exynos5_compatible_str;
+
+ return of_find_compatible_node(NULL, NULL, compatible_str);
+}
+
static int hdmi_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -2049,7 +2093,6 @@ static int hdmi_probe(struct platform_device *pdev)
struct resource *res;
const struct of_device_id *match;
struct device_node *ddc_node, *phy_node;
- struct hdmi_driver_data *drv_data;
int ret;
if (!dev->of_node)
@@ -2076,12 +2119,12 @@ static int hdmi_probe(struct platform_device *pdev)
if (!match)
return -ENODEV;
- drv_data = (struct hdmi_driver_data *)match->data;
- hdata->type = drv_data->type;
+ hdata->drv_data = (struct hdmi_driver_data *)match->data;
hdata->hpd_gpio = pdata->hpd_gpio;
hdata->max_pixel_clock = pdata->max_pixel_clock;
hdata->dev = dev;
+ hdmi_display.ctx = hdata;
ret = hdmi_resources_init(hdata);
if (ret) {
@@ -2100,6 +2143,10 @@ static int hdmi_probe(struct platform_device *pdev)
return ret;
}
+ ddc_node = hdmi_legacy_ddc_dt_binding(dev);
+ if (ddc_node)
+ goto out_get_ddc_adpt;
+
/* DDC i2c driver */
ddc_node = of_parse_phandle(dev->of_node, "ddc", 0);
if (!ddc_node) {
@@ -2107,6 +2154,7 @@ static int hdmi_probe(struct platform_device *pdev)
return -ENODEV;
}
+out_get_ddc_adpt:
hdata->ddc_adpt = of_find_i2c_adapter_by_node(ddc_node);
if (!hdata->ddc_adpt) {
DRM_ERROR("Failed to get ddc i2c adapter by node\n");
@@ -2114,9 +2162,13 @@ static int hdmi_probe(struct platform_device *pdev)
}
/* Not support APB PHY yet. */
- if (drv_data->is_apb_phy)
+ if (hdata->drv_data->is_apb_phy)
return -EPERM;
+ phy_node = hdmi_legacy_phy_dt_binding(dev);
+ if (phy_node)
+ goto out_get_phy_port;
+
/* hdmiphy i2c driver */
phy_node = of_parse_phandle(dev->of_node, "phy", 0);
if (!phy_node) {
@@ -2125,6 +2177,7 @@ static int hdmi_probe(struct platform_device *pdev)
goto err_ddc;
}
+out_get_phy_port:
hdata->hdmiphy_port = of_find_i2c_device_by_node(phy_node);
if (!hdata->hdmiphy_port) {
DRM_ERROR("Failed to get hdmi phy i2c client from node\n");
@@ -2152,7 +2205,6 @@ static int hdmi_probe(struct platform_device *pdev)
pm_runtime_enable(dev);
- hdmi_display.ctx = hdata;
exynos_drm_display_register(&hdmi_display);
return 0;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 22:55:29 +0000