On Thu, May 16, 2019 at 02:13:09PM +0800, Lowry Li (Arm Technology China) wrote:
> Updates HW up-sampling method according to the format type.
>
> Signed-off-by: Lowry Li (Arm Technology China)
> ---
> .../gpu/drm/arm/display/komeda/d71/d71_component.c | 29
> ++
> 1 file changed, 29 insertions(+)
>
> diff --git a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
> b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
> index f8846c6..dfc70f5 100644
> --- a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
> +++ b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
> @@ -212,6 +212,35 @@ static void d71_layer_update(struct komeda_component *c,
> malidp_write32(reg, BLK_P1_PTR_HIGH, upper_32_bits(addr));
> }
>
> + if (fb->format->is_yuv) {
> + u32 upsampling = 0;
> +
> + switch (kfb->format_caps->fourcc) {
> + case DRM_FORMAT_YUYV:
> + upsampling = fb->modifier ? LR_CHI422_BILINEAR :
> + LR_CHI422_REPLICATION;
> + break;
> + case DRM_FORMAT_UYVY:
> + upsampling = LR_CHI422_REPLICATION;
> + break;
> + case DRM_FORMAT_NV12:
> + case DRM_FORMAT_YUV420_8BIT:
> + case DRM_FORMAT_YUV420_10BIT:
> + case DRM_FORMAT_YUV420:
> + case DRM_FORMAT_P010:
> + /* these fmt support MPGE/JPEG both, here perfer JPEG*/
> + upsampling = LR_CHI420_JPEG;
> + break;
> + case DRM_FORMAT_X0L2:
> + upsampling = LR_CHI420_JPEG;
> + break;
> + default:
> + break;
> + }
> +
> + malidp_write32(reg, LAYER_R_CONTROL, upsampling);
> + }
> +
> malidp_write32(reg, LAYER_FMT, kfb->format_caps->hw_id);
> malidp_write32(reg, BLK_IN_SIZE, HV_SIZE(st->hsize, st->vsize));
>
> --
> 1.9.1
>
Reviewed-by: James Qian Wang (Arm Technology China)
Looks good to me.
Thank you
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