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Subject[PATCH v12 07/11] drm: bridge/dw_hdmi: add mode_valid support
Date
some platform may not support all the display mode,
add mode_valid interface check it

also add drm_connector_register which add a debugfs
interface for dump display modes and edid information

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
---

Changes in v12: None
Changes in v11: None
Changes in v10: None
Changes in v9: None
Changes in v8: None
Changes in v7: None
Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None

drivers/gpu/drm/bridge/dw_hdmi.c | 17 +++++++++++++++++
include/drm/bridge/dw_hdmi.h | 2 ++
2 files changed, 19 insertions(+)

diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c
index 229aa7a..7b32bb8 100644
--- a/drivers/gpu/drm/bridge/dw_hdmi.c
+++ b/drivers/gpu/drm/bridge/dw_hdmi.c
@@ -1406,6 +1406,20 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
return 0;
}

+static enum drm_mode_status
+dw_hdmi_connector_mode_valid(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ struct dw_hdmi *hdmi = container_of(connector,
+ struct dw_hdmi, connector);
+ enum drm_mode_status mode_status = MODE_OK;
+
+ if (hdmi->plat_data->mode_valid)
+ mode_status = hdmi->plat_data->mode_valid(connector, mode);
+
+ return mode_status;
+}
+
static struct drm_encoder *dw_hdmi_connector_best_encoder(struct drm_connector
*connector)
{
@@ -1430,6 +1444,7 @@ static struct drm_connector_funcs dw_hdmi_connector_funcs = {

static struct drm_connector_helper_funcs dw_hdmi_connector_helper_funcs = {
.get_modes = dw_hdmi_connector_get_modes,
+ .mode_valid = dw_hdmi_connector_mode_valid,
.best_encoder = dw_hdmi_connector_best_encoder,
};

@@ -1631,6 +1646,8 @@ int dw_hdmi_bind(struct device *dev, struct device *master,

dev_set_drvdata(dev, hdmi);

+ drm_connector_register(&hdmi->connector);
+
return 0;
}
EXPORT_SYMBOL_GPL(dw_hdmi_bind);
diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
index 1001470..ed358f0 100644
--- a/include/drm/bridge/dw_hdmi.h
+++ b/include/drm/bridge/dw_hdmi.h
@@ -44,6 +44,8 @@ struct sym_term {
};

struct dw_hdmi_plat_data {
+ enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
+ struct drm_display_mode *mode);
const struct mpll_config *mpll_cfg;
const struct curr_ctrl *cur_ctr;
const struct sym_term *sym_term;
--
1.9.1



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