This is a note to let you know that I've just added the patch titled
drm/kmb: Corrected typo in handle_lcd_irq
to the 5.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-kmb-corrected-typo-in-handle_lcd_irq.patch
and it can be found in the queue-5.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 2b51985965d727e4f7bf056a88e0d6595d486b73
Author: Anitha Chrisanthus <anitha.chrisanthus@xxxxxxxxx>
Date: Mon Jul 19 16:28:51 2021 -0700
drm/kmb: Corrected typo in handle_lcd_irq
[ Upstream commit 004d2719806fb8e355c1bccd538e82c04319d391 ]
Check for Overflow bits for layer3 in the irq handler.
Fixes: 7f7b96a8a0a1 ("drm/kmb: Add support for KeemBay Display")
Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@xxxxxxxxx>
Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20211013233632.471892-5-anitha.chrisanthus@xxxxxxxxx
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/kmb/kmb_drv.c b/drivers/gpu/drm/kmb/kmb_drv.c
index f54392ec4fab..bb7eca9e13ae 100644
--- a/drivers/gpu/drm/kmb/kmb_drv.c
+++ b/drivers/gpu/drm/kmb/kmb_drv.c
@@ -381,7 +381,7 @@ static irqreturn_t handle_lcd_irq(struct drm_device *dev)
if (val & LAYER3_DMA_FIFO_UNDERFLOW)
drm_dbg(&kmb->drm,
"LAYER3:GL1 DMA UNDERFLOW val = 0x%lx", val);
- if (val & LAYER3_DMA_FIFO_UNDERFLOW)
+ if (val & LAYER3_DMA_FIFO_OVERFLOW)
drm_dbg(&kmb->drm,
"LAYER3:GL1 DMA OVERFLOW val = 0x%lx", val);
}
