[PATCH 0/2] Adding rotattion to drm_plane_helper_check_update

[sonika]

On Tuesday 13 January 2015 11:42 PM, Matt Roper wrote:
> On Tue, Jan 13, 2015 at 06:03:38PM +0530, Sonika Jindal wrote:
>> This adds another parameter rotation to drm_plane_helper_check_update.
>> This will enable this function to do to size updations based upon the rotation
>> if any.
>> Updated the calls to this function in i915 and drm. Rockchip driver also needs
>> to be updated.
> It looks like you add the new function parameter in patch 1, but don't
> add it to the i915 callsites until patch 2 (and don't add it to the
> rockchip driver at all in this series).  That means that if someone is
> bisecting the kernel and lands on this commit, some of the drivers will
> fail to build, which isn't good.
>
> The callsites need to be updated at the same time that you add the
> parameter; fortunately there are only four of them (two in i915, one in
> the generic plane helper, and one in rockchip).  For simplicity, you can
> just pass the DRM_ROTATE_0 bit initially at the updated callsites when
> you add the new parameter so that there's no change from the current
> behavior for the existing callers.  Then you can come back in later in
> driver-specific patch(es) and pass the real rotation value the driver is
> using and adjust the caller's functionality as appropriate.
Sure, I will do this.

Sonika
>
> Matt
>
>> Sonika Jindal (2):
>>    drm: Adding rotation to drm_plane_helper_check_update
>>    drm/i915: Passing rotation to drm_plane_helper_check_update
>>
>>   drivers/gpu/drm/drm_plane_helper.c   |   79 ++++++++++++++++++++++++++++++++--
>>   drivers/gpu/drm/i915/intel_display.c |    6 ++-
>>   include/drm/drm_plane_helper.h       |    3 +-
>>   3 files changed, 81 insertions(+), 7 deletions(-)
>>
>> -- 
>> 1.7.10.4
>>