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drm: bridge/dw_hdmi: add mode_valid support

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some platform may not support all the display mode,
add mode_valid interface check it

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Andy Yan 2014-12-05 14:30:21 +08:00 committed by Philipp Zabel
parent 0cd9d14283
commit 632d035bac
1 changed files with 15 additions and 0 deletions
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15
drivers/gpu/drm/bridge/dw_hdmi.c
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@ -1405,6 +1405,20 @@ 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)
{
@ -1429,6 +1443,7 @@ 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,
};