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drm: xlnx: zynqmp: Use drm helpers when calculating buffer sizes

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Use drm helpers, drm_format_info_plane_width(),
drm_format_info_plane_height() and drm_format_info_min_pitch() to
calculate sizes for the DMA.

This cleans up the code, but also makes it possible to support more
complex formats (like P030, P230).

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patch.msgid.link/20260423-xilinx-formats-v10-7-c690c2b8ea89@ideasonboard.com
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
This commit is contained in:
Tomi Valkeinen 2026-04-23 17:21:18 +03:00
parent 3c8ed38450
commit f5e096f0f4
1 changed files with 6 additions and 3 deletions
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9
drivers/gpu/drm/xlnx/zynqmp_disp.c
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@ -1116,16 +1116,19 @@ int zynqmp_disp_layer_update(struct zynqmp_disp_layer *layer,
return 0;
for (i = 0; i < info->num_planes; i++) {
unsigned int width = state->crtc_w / (i ? info->hsub : 1);
unsigned int height = state->crtc_h / (i ? info->vsub : 1);
struct zynqmp_disp_layer_dma *dma = &layer->dmas[i];
struct dma_async_tx_descriptor *desc;
dma_addr_t dma_addr;
unsigned int width;
unsigned int height;
width = drm_format_info_plane_width(info, state->crtc_w, i);
height = drm_format_info_plane_height(info, state->crtc_h, i);
dma_addr = drm_fb_dma_get_gem_addr(state->fb, state, i);
dma->xt.numf = height;
dma->sgl.size = width * info->cpp[i];
dma->sgl.size = drm_format_info_min_pitch(info, i, width);
dma->sgl.icg = state->fb->pitches[i] - dma->sgl.size;
dma->xt.src_start = dma_addr;
dma->xt.frame_size = 1;