From: Lin Huang <[email protected]> When panel is shut down, we should make sure edp can be disabled to avoid undefined behavior.
Cc: Stéphane Marchesin <[email protected]> Signed-off-by: Lin Huang <[email protected]> Signed-off-by: zain wang <[email protected]> Signed-off-by: Sean Paul <[email protected]> Signed-off-by: Thierry Escande <[email protected]> Reviewed-by: Andrzej Hajda <[email protected]> Signed-off-by: Enric Balletbo i Serra <[email protected]> Tested-by: Marek Szyprowski <[email protected]> --- drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index 92fb9a072cb6..3a222e7e46ee 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -1160,6 +1160,12 @@ static int analogix_dp_set_bridge(struct analogix_dp_device *dp) pm_runtime_get_sync(dp->dev); + ret = clk_prepare_enable(dp->clock); + if (ret < 0) { + DRM_ERROR("Failed to prepare_enable the clock clk [%d]\n", ret); + goto out_dp_clk_pre; + } + if (dp->plat_data->power_on) dp->plat_data->power_on(dp->plat_data); @@ -1191,6 +1197,8 @@ static int analogix_dp_set_bridge(struct analogix_dp_device *dp) phy_power_off(dp->phy); if (dp->plat_data->power_off) dp->plat_data->power_off(dp->plat_data); + clk_disable_unprepare(dp->clock); +out_dp_clk_pre: pm_runtime_put_sync(dp->dev); return ret; @@ -1233,11 +1241,14 @@ static void analogix_dp_bridge_disable(struct drm_bridge *bridge) } disable_irq(dp->irq); + analogix_dp_set_analog_power_down(dp, POWER_ALL, 1); phy_power_off(dp->phy); if (dp->plat_data->power_off) dp->plat_data->power_off(dp->plat_data); + clk_disable_unprepare(dp->clock); + pm_runtime_put_sync(dp->dev); ret = analogix_dp_prepare_panel(dp, false, true); -- 2.16.1 _______________________________________________ dri-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/dri-devel
