[PATCH v3 06/13] drm: bridge: dw_hdmi: Remove previous_mode and mode_set

Jonas Karlman
2026-04-03T18:54:01Z

With the use of adjusted_mode directly from the crtc_state there is no
longer a need to store a copy in previous_mode, remove it and the now
unneeded mode_set ops.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
v3: Collect r-b tag
v2: No change
---
drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 19 +------------------
1 file changed, 1 insertion(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 7e7147b14614..aa4949de9173 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -154,8 +154,6 @@ struct dw_hdmi {
bool enabled;
} phy;

- struct drm_display_mode previous_mode;
-
struct i2c_adapter *ddc;
void __iomem *regs;
bool sink_is_hdmi;
@@ -165,7 +163,7 @@ struct dw_hdmi {
struct pinctrl_state *default_state;
struct pinctrl_state *unwedge_state;

- struct mutex mutex; /* for state below and previous_mode */
+ struct mutex mutex; /* for state below */
enum drm_connector_force force; /* mutex-protected force state */
struct drm_connector *curr_conn;/* current connector (only valid when !disabled) */
bool disabled; /* DRM has disabled our bridge */
@@ -2911,20 +2909,6 @@ dw_hdmi_bridge_mode_valid(struct drm_bridge *bridge,
return mode_status;
}

-static void dw_hdmi_bridge_mode_set(struct drm_bridge *bridge,
- const struct drm_display_mode *orig_mode,
- const struct drm_display_mode *mode)
-{
- struct dw_hdmi *hdmi = bridge->driver_private;
-
- mutex_lock(&hdmi->mutex);
-
- /* Store the display mode for plugin/DKMS poweron events */
- drm_mode_copy(&hdmi->previous_mode, mode);
-
- mutex_unlock(&hdmi->mutex);
-}
-
static void dw_hdmi_bridge_atomic_disable(struct drm_bridge *bridge,
struct drm_atomic_state *state)
{
@@ -2988,7 +2972,6 @@ static const struct drm_bridge_funcs dw_hdmi_bridge_funcs = {
.atomic_get_input_bus_fmts = dw_hdmi_bridge_atomic_get_input_bus_fmts,
.atomic_enable = dw_hdmi_bridge_atomic_enable,
.atomic_disable = dw_hdmi_bridge_atomic_disable,
- .mode_set = dw_hdmi_bridge_mode_set,
.mode_valid = dw_hdmi_bridge_mode_valid,
.detect = dw_hdmi_bridge_detect,
.edid_read = dw_hdmi_bridge_edid_read,
--
2.53.0