[PATCH v2 2/3] drm/bridge: ti-sn65dsi86: Implement bridge->mode_valid()

From: Rob Clark
Date: Mon Sep 20 2021 - 22:06:58 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().

v2: Drop unneeded connector->mode_valid()

Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
Reviewed-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
---
drivers/gpu/drm/bridge/ti-sn65dsi86.c | 25 +++++++++++++------------
1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
index 41d48a393e7f..6154bed0af5b 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
@@ -615,20 +615,8 @@ static int ti_sn_bridge_connector_get_modes(struct drm_connector *connector)
return drm_bridge_get_modes(pdata->next_bridge, connector);
}

-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;
-}
-
static struct drm_connector_helper_funcs ti_sn_bridge_connector_helper_funcs = {
.get_modes = ti_sn_bridge_connector_get_modes,
- .mode_valid = ti_sn_bridge_connector_mode_valid,
};

static const struct drm_connector_funcs ti_sn_bridge_connector_funcs = {
@@ -766,6 +754,18 @@ 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)
+{
+ /* maximum supported resolution is 4K at 60 fps */
+ if (mode->clock > 594000)
+ return MODE_CLOCK_HIGH;
+
+ return MODE_OK;
+}
+
static void ti_sn_bridge_disable(struct drm_bridge *bridge)
{
struct ti_sn65dsi86 *pdata = bridge_to_ti_sn65dsi86(bridge);
@@ -1127,6 +1127,7 @@ 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