Bridges using DRM_BRIDGE_OP_HDMI expect connectors to be created through drm_bridge_connector_init(), thereby relying on the bridge connector's .mode_valid hook to invoke drm_hdmi_connector_mode_valid().
The generic helper computes the mode's TMDS character rate and forwards it to the bridge's .hdmi_tmds_char_rate_valid callback through the connector HDMI funcs. This covers exactly what it6263_bridge_mode_valid() does for 8 bpc RGB444, but due to being output-format aware, it also handles the validation more thoroughly. Both the connector and bridge .mode_valid hooks are invoked during mode validation through drm_mode_validate_pipeline(), so the custom bridge hook is redundant. Drop it. While at it, remove the now-unused drm_hdmi_helper.h include. Signed-off-by: Cristian Ciocaltea <[email protected]> --- drivers/gpu/drm/bridge/ite-it6263.c | 16 ---------------- 1 file changed, 16 deletions(-) diff --git a/drivers/gpu/drm/bridge/ite-it6263.c b/drivers/gpu/drm/bridge/ite-it6263.c index 21ac8e58b9d2..550999491086 100644 --- a/drivers/gpu/drm/bridge/ite-it6263.c +++ b/drivers/gpu/drm/bridge/ite-it6263.c @@ -15,7 +15,6 @@ #include <linux/regmap.h> #include <linux/regulator/consumer.h> -#include <drm/display/drm_hdmi_helper.h> #include <drm/display/drm_hdmi_state_helper.h> #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> @@ -669,20 +668,6 @@ static void it6263_bridge_atomic_enable(struct drm_bridge *bridge, regmap_write(regmap, HDMI_REG_PKT_GENERAL_CTRL, ENABLE_PKT | REPEAT_PKT); } -static enum drm_mode_status -it6263_bridge_mode_valid(struct drm_bridge *bridge, - const struct drm_display_info *info, - const struct drm_display_mode *mode) -{ - unsigned long long rate; - - rate = drm_hdmi_compute_mode_clock(mode, 8, DRM_OUTPUT_COLOR_FORMAT_RGB444); - if (rate == 0) - return MODE_NOCLOCK; - - return bridge->funcs->hdmi_tmds_char_rate_valid(bridge, mode, rate); -} - static int it6263_bridge_attach(struct drm_bridge *bridge, struct drm_encoder *encoder, enum drm_bridge_attach_flags flags) @@ -831,7 +816,6 @@ static const struct drm_bridge_funcs it6263_bridge_funcs = { .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, .atomic_create_state = drm_atomic_helper_bridge_create_state, .attach = it6263_bridge_attach, - .mode_valid = it6263_bridge_mode_valid, .atomic_disable = it6263_bridge_atomic_disable, .atomic_enable = it6263_bridge_atomic_enable, .detect = it6263_bridge_detect, -- 2.55.0
