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drm: mali-dp: Clear the config_valid flag before using it in wait_event.

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config_valid variable is used to signal the activation of the CVAL
request when the vsync interrupt has fired. malidp_set_and_wait_config_valid()
uses the variable in wait_event_interruptible_timeout without clearing it
first, so the wait is skipped.

Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
This commit is contained in:
Liviu Dudau 2016-07-21 16:09:38 +01:00
parent fb422950c6
commit aad3896340
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/arm/malidp_drv.c
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@ -42,6 +42,7 @@ static int malidp_set_and_wait_config_valid(struct drm_device *drm)
struct malidp_hw_device *hwdev = malidp->dev; struct malidp_hw_device *hwdev = malidp->dev;
int ret; int ret;
atomic_set(&malidp->config_valid, 0);
hwdev->set_config_valid(hwdev); hwdev->set_config_valid(hwdev);
/* don't wait for config_valid flag if we are in config mode */ /* don't wait for config_valid flag if we are in config mode */
if (hwdev->in_config_mode(hwdev)) if (hwdev->in_config_mode(hwdev))