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drm: rp1: dpi: Add support for MEDIA_BUS_FMT_RGB565_1X24_CPADHI #6132

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Apr 30, 2024
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drm: rp1: dpi: Add support for MEDIA_BUS_FMT_RGB565_1X24_CPADHI #6132

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8 changes: 7 additions & 1 deletion drivers/gpu/drm/rp1/rp1-dpi/rp1_dpi_hw.c
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Original file line number Diff line number Diff line change
Expand Up @@ -319,8 +319,14 @@ static u32 set_output_format(u32 bus_format, u32 *shift, u32 *imask, u32 *rgbsz)
*shift |= OSHIFT_RGB(29, 19, 9);
return OMASK_RGB(0x3fc, 0x3fc, 0x3fc);

case MEDIA_BUS_FMT_RGB565_1X24_CPADHI:
/* This should match Raspberry Pi legacy "mode 3" */
*shift |= OSHIFT_RGB(26, 17, 6);
*rgbsz &= DPI_DMA_RGBSZ_BPP_MASK;
return OMASK_RGB(0x3e0, 0x3f0, 0x3e0);

default:
/* RGB666_1x24_CPADHI, BGR666_1X24_CPADHI and "RGB565_666" formats */
/* RGB666_1x24_CPADHI, BGR666_1X24_CPADHI and "mode 4" formats */
*shift |= OSHIFT_RGB(27, 17, 7);
*rgbsz &= DPI_DMA_RGBSZ_BPP_MASK;
return OMASK_RGB(0x3f0, 0x3f0, 0x3f0);
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