drm/fsl-dcu: do not update when modifying irq registers
authorStefan Agner <stefan@agner.ch>
Tue, 5 Jan 2016 00:34:22 +0000 (16:34 -0800)
committerStefan Agner <stefan@agner.ch>
Wed, 9 Nov 2016 01:14:08 +0000 (17:14 -0800)
commit34a515d27c6573b6f550877b30dd5e0f440c3d8f
tree92f0f7360db125e2e6573ac6ece3bf3f8a70f36d
parent020a0bbc0d89c15693e69ed2063584ef7ec2d811
drm/fsl-dcu: do not update when modifying irq registers

The IRQ status and mask registers are not "double buffered" according
to the reference manual. Hence, there is no extra transfer/update
write needed when modifying these registers.

Signed-off-by: Stefan Agner <stefan@agner.ch>
drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c