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drm/bridge: analogic_dp: drop panel_lock

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The analogix_dp_prepare_panel() function is called from bridge's
atomic_pre_enable() and atomic_post_disable() callbacks, which can not
happen simultaneously. Drop the useless mutex.

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-v1-4-93e1be33dc8d@oss.qualcomm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
This commit is contained in:
Dmitry Baryshkov 2025-04-01 08:11:36 +03:00
parent 4fc72e1fc4
commit 62ca1c3a14
2 changed files with 0 additions and 7 deletions
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5
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
View File

@ -974,14 +974,11 @@ static int analogix_dp_prepare_panel(struct analogix_dp_device *dp,
if (!dp->plat_data->panel)
return 0;
mutex_lock(&dp->panel_lock);
if (prepare)
ret = drm_panel_prepare(dp->plat_data->panel);
else
ret = drm_panel_unprepare(dp->plat_data->panel);
mutex_unlock(&dp->panel_lock);
return ret;
}
@ -1547,8 +1544,6 @@ analogix_dp_probe(struct device *dev, struct analogix_dp_plat_data *plat_data)
dp->dev = &pdev->dev;
dp->dpms_mode = DRM_MODE_DPMS_OFF;
mutex_init(&dp->panel_lock);
/*
* platform dp driver need containor_of the plat_data to get
* the driver private data, so we need to store the point of

2
drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
View File

@ -169,8 +169,6 @@ struct analogix_dp_device {
bool fast_train_enable;
bool psr_supported;
struct mutex panel_lock;
struct analogix_dp_plat_data *plat_data;
};