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drm/msm/dpu: drop redundant num_planes assignment in _dpu_format_populate_plane_sizes*()

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Drop redundant layout->num_planes assignments, using the value assigned
from the formats table. RGB UBWC formats need special handling: they use
two planes (per the format table), but the uAPI defines plane[1] as
empty.

Reviewed-by: Jessica Zhang <jessica.zhang@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/688180/
Link: https://lore.kernel.org/r/20251114-dpu-formats-v3-10-cae312379d49@oss.qualcomm.com
Tested-by: Luca Weiss <luca.weiss@fairphone.com> # qcm6490-fairphone-fp5
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
This commit is contained in:
Dmitry Baryshkov 2025-11-14 05:43:37 +02:00
parent 72f20360d4
commit d4db3a06c5
1 changed files with 3 additions and 8 deletions
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11
drivers/gpu/drm/msm/disp/dpu1/dpu_formats.c
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@ -110,7 +110,6 @@ static int _dpu_format_populate_plane_sizes_ubwc(
uint32_t y_meta_scanlines = 0;
uint32_t uv_meta_scanlines = 0;
layout->num_planes = 2;
layout->plane_pitch[0] = VENUS_Y_STRIDE(color, fb->width);
y_sclines = VENUS_Y_SCANLINES(color, fb->height);
layout->plane_size[0] = MSM_MEDIA_ALIGN(layout->plane_pitch[0] *
@ -124,7 +123,6 @@ static int _dpu_format_populate_plane_sizes_ubwc(
if (!meta)
return 0;
layout->num_planes += 2;
layout->plane_pitch[2] = VENUS_Y_META_STRIDE(color, fb->width);
y_meta_scanlines = VENUS_Y_META_SCANLINES(color, fb->height);
layout->plane_size[2] = MSM_MEDIA_ALIGN(layout->plane_pitch[2] *
@ -138,8 +136,6 @@ static int _dpu_format_populate_plane_sizes_ubwc(
} else {
uint32_t rgb_scanlines, rgb_meta_scanlines;
layout->num_planes = 1;
layout->plane_pitch[0] = VENUS_RGB_STRIDE(color, fb->width);
rgb_scanlines = VENUS_RGB_SCANLINES(color, fb->height);
layout->plane_size[0] = MSM_MEDIA_ALIGN(layout->plane_pitch[0] *
@ -148,7 +144,9 @@ static int _dpu_format_populate_plane_sizes_ubwc(
if (!meta)
return 0;
layout->num_planes += 2;
/* uAPI leaves plane[1] empty and plane[2] as meta */
layout->num_planes += 1;
layout->plane_pitch[2] = VENUS_RGB_META_STRIDE(color, fb->width);
rgb_meta_scanlines = VENUS_RGB_META_SCANLINES(color, fb->height);
layout->plane_size[2] = MSM_MEDIA_ALIGN(layout->plane_pitch[2] *
@ -167,7 +165,6 @@ static int _dpu_format_populate_plane_sizes_linear(
/* Due to memset above, only need to set planes of interest */
if (fmt->fetch_type == MDP_PLANE_INTERLEAVED) {
layout->num_planes = 1;
layout->plane_size[0] = fb->width * fb->height * fmt->bpp;
layout->plane_pitch[0] = fb->width * fmt->bpp;
} else {
@ -194,12 +191,10 @@ static int _dpu_format_populate_plane_sizes_linear(
(fb->height / v_subsample);
if (fmt->fetch_type == MDP_PLANE_PSEUDO_PLANAR) {
layout->num_planes = 2;
layout->plane_size[1] *= 2;
layout->plane_pitch[1] *= 2;
} else {
/* planar */
layout->num_planes = 3;
layout->plane_size[2] = layout->plane_size[1];
layout->plane_pitch[2] = layout->plane_pitch[1];
}