imx-drm: core: handling of DI clock flags to ipu_crtc_mode_set()

Browse source

We do not need to track the state of the IPU DI's clock flags by having
each display bridge calling back into imx-drm-core, and then back out
into ipuv3-crtc.c.

ipuv3-crtc can instead just scan the list of encoders to retrieve their
type, and build up a picture of which types of encoders are attached.
We can then use this information to configure the IPU DI clocking mode
without any uncertainty - if we have multiple bridges connected to the
same DI, if one of them requires a synchronous DI clock, that's what we
must use.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

...

This commit is contained in:

Russell King 2014-12-21 15:58:19 +00:00 • committed by Philipp Zabel

parent 503f1631ae

commit d50141d807

3 changed files with 25 additions and 20 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

3

drivers/gpu/drm/imx/imx-drm-core.c

View file

2

drivers/gpu/drm/imx/imx-drm.h

View file

40

drivers/gpu/drm/imx/ipuv3-crtc.c

View file