From: Liviu Dudau Date: Thu, 21 Jul 2016 15:09:38 +0000 (+0100) Subject: drm: mali-dp: Clear the config_valid flag before using it in wait_event. X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=aad389634066e35be0114edca6d26efda6ab884d;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git drm: mali-dp: Clear the config_valid flag before using it in wait_event. 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 --- diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c index 9f4739452a25..f15dc5484f31 100644 --- a/drivers/gpu/drm/arm/malidp_drv.c +++ b/drivers/gpu/drm/arm/malidp_drv.c @@ -42,6 +42,7 @@ static int malidp_set_and_wait_config_valid(struct drm_device *drm) struct malidp_hw_device *hwdev = malidp->dev; int ret; + atomic_set(&malidp->config_valid, 0); hwdev->set_config_valid(hwdev); /* don't wait for config_valid flag if we are in config mode */ if (hwdev->in_config_mode(hwdev))