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drm/stm: ltdc: fix pinctrl recovery after sleep #17

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drm/stm: ltdc: fix pinctrl recovery after sleep #17

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14 changes: 9 additions & 5 deletions drivers/gpu/drm/stm/ltdc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1134,6 +1134,14 @@ static void ltdc_encoder_enable(struct drm_encoder *encoder)

DRM_DEBUG_DRIVER("\n");

/*
* Set to default state the pinctrl only with DPI type.
* Others types like DSI, don't need pinctrl due to
* internal bridge (the signals do not come out of the chipset).
*/
if (encoder->encoder_type == DRM_MODE_ENCODER_DPI)
pinctrl_pm_select_default_state(ddev->dev);

/* Enable LTDC */
reg_set(ldev->regs, LTDC_GCR, GCR_LTDCEN);
}
Expand All @@ -1146,11 +1154,7 @@ static void ltdc_encoder_mode_set(struct drm_encoder *encoder,

DRM_DEBUG_DRIVER("\n");

/*
* Set to default state the pinctrl only with DPI type.
* Others types like DSI, don't need pinctrl due to
* internal bridge (the signals do not come out of the chipset).
*/
/* Set pinctrl to default as soon as possible */
if (encoder->encoder_type == DRM_MODE_ENCODER_DPI)
pinctrl_pm_select_default_state(ddev->dev);
}
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