[PATCH v2] drm/i915: fix color order for BGR formats on IVB

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On 8/22/2012 6:30 PM, Antti Koskip?? wrote:
> Hi,
>
> On 08/22/12 12:17, Vijay Purushothaman wrote:
>> This is already fixed for ILK and SNB in the below commit but somehow
>> IVB is missed.
>>
>> commit ab2f9df10dd955f1fc0a8650e377588c98f1c029
>> Author: Jesse Barnes <jbarnes at virtuousgeek.org>
>> Date:   Mon Feb 27 12:40:10 2012 -0800
>>
>>      drm/i915: fix color order for BGR formats on SNB
>>
>> Had the wrong bits and field definitions.
>>
>> Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman at intel.com>
>> Signed-off-by: Ben Lin <ben.y.lin at intel.com>
>> ---
>>   drivers/gpu/drm/i915/intel_sprite.c |    6 +++---
>>   1 file changed, 3 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
>> index cc8df4d..6045a01 100644
>> --- a/drivers/gpu/drm/i915/intel_sprite.c
>> +++ b/drivers/gpu/drm/i915/intel_sprite.c
>> @@ -54,17 +54,17 @@ ivb_update_plane(struct drm_plane *plane, struct drm_framebuffer *fb,
>>
>>   	/* Mask out pixel format bits in case we change it */
>>   	sprctl &= ~SPRITE_PIXFORMAT_MASK;
>> -	sprctl &= ~SPRITE_RGB_ORDER_RGBX;
>> +	sprctl &= ~SPRITE_RGB_ORDER_XBGR;
> Are you sure about this? Where is the #define for _XBGR?
>

Thanks for the catch. I assumed SPRITE_RGB_ORDER_XBGR as defined similar 
to DVS_RGB_ORDER_XBGR for SNB. The original code snippet is correct.

>>   	sprctl &= ~SPRITE_YUV_BYTE_ORDER_MASK;
>>   	sprctl &= ~SPRITE_TILED;
>>
>>   	switch (fb->pixel_format) {
>>   	case DRM_FORMAT_XBGR8888:
>> -		sprctl |= SPRITE_FORMAT_RGBX888;
>> +		sprctl |= SPRITE_FORMAT_RGBX888 | SPRITE_RGB_ORDER_RGBX;
>>   		pixel_size = 4;
>>   		break;
>>   	case DRM_FORMAT_XRGB8888:
>> -		sprctl |= SPRITE_FORMAT_RGBX888 | SPRITE_RGB_ORDER_RGBX;
>> +		sprctl |= SPRITE_FORMAT_RGBX888;
>>   		pixel_size = 4;
>>   		break;
>>   	case DRM_FORMAT_YUYV:
>



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