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drm/bridge: analogix_dp: drop extra calls to analogix_dp_prepare_panel()

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The analogix_dp_prepare_panel() returns immediately if there is no
attached panel. Drop several calls to this function which are performed
when dp->plat_data->panel is NULL.

Tested-by: Damon Ding <damon.ding@rock-chips.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250401-panel-return-void-v1-1-93e1be33dc8d@oss.qualcomm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
This commit is contained in:
Dmitry Baryshkov 2025-04-01 08:11:33 +03:00
parent b1d6a89d7b
commit b65cbfe0e1
1 changed files with 1 additions and 21 deletions
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22
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
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@ -1005,17 +1005,11 @@ static int analogix_dp_get_modes(struct drm_connector *connector)
{
struct analogix_dp_device *dp = to_dp(connector);
const struct drm_edid *drm_edid;
int ret, num_modes = 0;
int num_modes = 0;
if (dp->plat_data->panel) {
num_modes += drm_panel_get_modes(dp->plat_data->panel, connector);
} else {
ret = analogix_dp_prepare_panel(dp, true, false);
if (ret) {
DRM_ERROR("Failed to prepare panel (%d)\n", ret);
return 0;
}
drm_edid = drm_edid_read_ddc(connector, &dp->aux.ddc);
drm_edid_connector_update(&dp->connector, drm_edid);
@ -1024,10 +1018,6 @@ static int analogix_dp_get_modes(struct drm_connector *connector)
num_modes += drm_edid_connector_add_modes(&dp->connector);
drm_edid_free(drm_edid);
}
ret = analogix_dp_prepare_panel(dp, false, false);
if (ret)
DRM_ERROR("Failed to unprepare panel (%d)\n", ret);
}
if (dp->plat_data->get_modes)
@ -1087,19 +1077,9 @@ analogix_dp_detect(struct drm_connector *connector, bool force)
if (dp->plat_data->panel)
return connector_status_connected;
ret = analogix_dp_prepare_panel(dp, true, false);
if (ret) {
DRM_ERROR("Failed to prepare panel (%d)\n", ret);
return connector_status_disconnected;
}
if (!analogix_dp_detect_hpd(dp))
status = connector_status_connected;
ret = analogix_dp_prepare_panel(dp, false, false);
if (ret)
DRM_ERROR("Failed to unprepare panel (%d)\n", ret);
return status;
}