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Commit 0cb8b757 authored by Philipp Zabel's avatar Philipp Zabel
Browse files

gpu: ipu-v3: add support for 15-bit RGB with 1-bit alpha formats 



This patch adds support for ARGB1555, ABGR1555, RGBA5551, and BGRA5551
in-memory formats.

Signed-off-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
parent ef739aa4

drivers/gpu/ipu-v3/ipu-common.c

+4 −0
Original line number Diff line number Diff line
@@ -57,6 +57,10 @@ EXPORT_SYMBOL_GPL(ipu_srm_dp_sync_update); 
enum ipu_color_space ipu_drm_fourcc_to_colorspace(u32 drm_fourcc)

{

	switch (drm_fourcc) {

	case DRM_FORMAT_ARGB1555:

	case DRM_FORMAT_ABGR1555:

	case DRM_FORMAT_RGBA5551:

	case DRM_FORMAT_BGRA5551:

	case DRM_FORMAT_RGB565:

	case DRM_FORMAT_BGR565:

	case DRM_FORMAT_RGB888:

drivers/gpu/ipu-v3/ipu-cpmem.c

+44 −0
Original line number Diff line number Diff line
@@ -500,6 +500,38 @@ static const struct ipu_rgb def_bgr_16 = { 
	.bits_per_pixel = 16,

};



static const struct ipu_rgb def_argb_16 = {

	.red	= { .offset = 10, .length = 5, },

	.green	= { .offset =  5, .length = 5, },

	.blue	= { .offset =  0, .length = 5, },

	.transp = { .offset = 15, .length = 1, },

	.bits_per_pixel = 16,

};



static const struct ipu_rgb def_abgr_16 = {

	.red	= { .offset =  0, .length = 5, },

	.green	= { .offset =  5, .length = 5, },

	.blue	= { .offset = 10, .length = 5, },

	.transp = { .offset = 15, .length = 1, },

	.bits_per_pixel = 16,

};



static const struct ipu_rgb def_rgba_16 = {

	.red	= { .offset = 11, .length = 5, },

	.green	= { .offset =  6, .length = 5, },

	.blue	= { .offset =  1, .length = 5, },

	.transp = { .offset =  0, .length = 1, },

	.bits_per_pixel = 16,

};



static const struct ipu_rgb def_bgra_16 = {

	.red	= { .offset =  1, .length = 5, },

	.green	= { .offset =  6, .length = 5, },

	.blue	= { .offset = 11, .length = 5, },

	.transp = { .offset =  0, .length = 1, },

	.bits_per_pixel = 16,

};



#define Y_OFFSET(pix, x, y)	((x) + pix->width * (y))

#define U_OFFSET(pix, x, y)	((pix->width * pix->height) +		\

				 (pix->width * (y) / 4) + (x) / 2)
@@ -581,6 +613,18 @@ int ipu_cpmem_set_fmt(struct ipuv3_channel *ch, u32 drm_fourcc) 
	case DRM_FORMAT_BGR565:

		ipu_cpmem_set_format_rgb(ch, &def_bgr_16);

		break;

	case DRM_FORMAT_ARGB1555:

		ipu_cpmem_set_format_rgb(ch, &def_argb_16);

		break;

	case DRM_FORMAT_ABGR1555:

		ipu_cpmem_set_format_rgb(ch, &def_abgr_16);

		break;

	case DRM_FORMAT_RGBA5551:

		ipu_cpmem_set_format_rgb(ch, &def_rgba_16);

		break;

	case DRM_FORMAT_BGRA5551:

		ipu_cpmem_set_format_rgb(ch, &def_bgra_16);

		break;

	default:

		return -EINVAL;

	}