Hi,
On 2018-01-30 21:28, Thierry Escande wrote:
From: zain wang <wzz@xxxxxxxxxxxxxx>
The bridge does not need to be powered in analogix_dp_bind(), so
remove the calls to pm_runtime_get()/phy_power_on()/analogix_dp_init_dp()
as well as their power-off counterparts.
Cc: Stéphane Marchesin <marcheu@xxxxxxxxxxxx>
Signed-off-by: zain wang <wzz@xxxxxxxxxxxxxx>
Signed-off-by: Caesar Wang <wxt@xxxxxxxxxxxxxx>
[the patch originally just removed the power_on portion, seanpaul removed
the power off code as well as improved the commit message]
Signed-off-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
Signed-off-by: Thierry Escande <thierry.escande@xxxxxxxxxxxxx>
---
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index cb5e18d6ba04..1477ea9ba85d 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -1382,11 +1382,6 @@ analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
pm_runtime_enable(dev);
- pm_runtime_get_sync(dev);
- phy_power_on(dp->phy);
-
- analogix_dp_init_dp(dp);
-
ret = devm_request_threaded_irq(&pdev->dev, dp->irq,
analogix_dp_hardirq,
analogix_dp_irq_thread,
@@ -1414,15 +1409,10 @@ analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
goto err_disable_pm_runtime;
}
- phy_power_off(dp->phy);
- pm_runtime_put(dev);
-
return dp;
err_disable_pm_runtime:
- phy_power_off(dp->phy);
- pm_runtime_put(dev);
pm_runtime_disable(dev);
return ERR_PTR(ret);
Once this change is applied, there is also no need to keep dp->clock
prepared & enabled between bind/unbind.
analogix_dp_set_bridge() and analogix_dp_bridge_disable() properly manage
dp->clock on their own.
Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland
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