[PATCH 3/4] drm/bridge: ti-sn65dsi86: Implement bridge->mode_valid()
From: Rob Clark
Date: Wed Aug 11 2021 - 19:51:15 EST
From: Rob Clark <robdclark@xxxxxxxxxxxx>
For the brave new world of bridges not creating their own connectors, we
need to implement the max clock limitation via bridge->mode_valid()
instead of connector->mode_valid().
Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
---
drivers/gpu/drm/bridge/ti-sn65dsi86.c | 24 +++++++++++++++++++-----
1 file changed, 19 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
index 5d3b30b2f547..38dcc49eccaf 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
@@ -595,6 +595,15 @@ static struct auxiliary_driver ti_sn_aux_driver = {
.id_table = ti_sn_aux_id_table,
};
+static enum drm_mode_status check_mode(const struct drm_display_mode *mode)
+{
+ /* maximum supported resolution is 4K at 60 fps */
+ if (mode->clock > 594000)
+ return MODE_CLOCK_HIGH;
+
+ return MODE_OK;
+}
+
/* -----------------------------------------------------------------------------
* DRM Connector Operations
*/
@@ -616,11 +625,7 @@ static enum drm_mode_status
ti_sn_bridge_connector_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
- /* maximum supported resolution is 4K at 60 fps */
- if (mode->clock > 594000)
- return MODE_CLOCK_HIGH;
-
- return MODE_OK;
+ return check_mode(mode);
}
static struct drm_connector_helper_funcs ti_sn_bridge_connector_helper_funcs = {
@@ -763,6 +768,14 @@ static void ti_sn_bridge_detach(struct drm_bridge *bridge)
drm_dp_aux_unregister(&bridge_to_ti_sn65dsi86(bridge)->aux);
}
+static enum drm_mode_status
+ti_sn_bridge_mode_valid(struct drm_bridge *bridge,
+ const struct drm_display_info *info,
+ const struct drm_display_mode *mode)
+{
+ return check_mode(mode);
+}
+
static void ti_sn_bridge_disable(struct drm_bridge *bridge)
{
struct ti_sn65dsi86 *pdata = bridge_to_ti_sn65dsi86(bridge);
@@ -1118,6 +1131,7 @@ static void ti_sn_bridge_post_disable(struct drm_bridge *bridge)
static const struct drm_bridge_funcs ti_sn_bridge_funcs = {
.attach = ti_sn_bridge_attach,
.detach = ti_sn_bridge_detach,
+ .mode_valid = ti_sn_bridge_mode_valid,
.pre_enable = ti_sn_bridge_pre_enable,
.enable = ti_sn_bridge_enable,
.disable = ti_sn_bridge_disable,
--
2.31.1