imx-drm: ipuv3-plane: enable double buffering
authorPhilipp Zabel <p.zabel@pengutronix.de>
Wed, 8 Oct 2014 15:19:14 +0000 (17:19 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 4 Nov 2014 00:19:58 +0000 (16:19 -0800)
commit356f952472f24b3677f191f534479d7d1be0183e
tree23474b4480804dbe9d7ca6b4e68e36bc25cfe145
parent7cd9bebee609c4a2e382ad5089f1c24e6098f493
imx-drm: ipuv3-plane: enable double buffering

This allows to update the buffer base address while the DMA
channel is running. It is needed to flip the frame buffer of
an active plane.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/imx-drm/ipuv3-plane.c