Messages in this thread Patch in this message | | | From | Brian Starkey <> | Subject | [PATCH 2/8] drm: mali-dp: Clear the config_valid flag before using it in wait_event. | Date | Tue, 11 Oct 2016 15:26:03 +0100 |
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From: Liviu Dudau <Liviu.Dudau@arm.com>
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> --- drivers/gpu/drm/arm/malidp_drv.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c index 7987ebd..f2b1923 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)) -- 1.7.9.5
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