Commit 5edec14c authored by Tomi Valkeinen's avatar Tomi Valkeinen
Browse files

drm/omap: add format_is_yuv() helper 



In a few places the dispc driver needs to know whether the pixel format
is an YUV format. Add a helper to figure that out.

Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
parent 185e23e1

drivers/gpu/drm/omapdrm/dss/dispc.c

+23 −33
Original line number Diff line number Diff line
@@ -978,6 +978,18 @@ static void dispc_ovl_set_color_mode(enum omap_plane_id plane, 
	REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), m, 4, 1);

}



static bool format_is_yuv(enum omap_color_mode color_mode)

{

	switch (color_mode) {

	case OMAP_DSS_COLOR_YUV2:

	case OMAP_DSS_COLOR_UYVY:

	case OMAP_DSS_COLOR_NV12:

		return true;

	default:

		return false;

	}

}



static void dispc_ovl_configure_burst_type(enum omap_plane_id plane,

		enum omap_dss_rotation_type rotation_type)

{
@@ -1703,9 +1715,8 @@ static void dispc_ovl_set_scaling_uv(enum omap_plane_id plane, 


	if (!dss_has_feature(FEAT_HANDLE_UV_SEPARATE))

		return;

	if ((color_mode != OMAP_DSS_COLOR_YUV2 &&

			color_mode != OMAP_DSS_COLOR_UYVY &&

			color_mode != OMAP_DSS_COLOR_NV12)) {



	if (!format_is_yuv(color_mode)) {

		/* reset chroma resampling for RGB formats  */

		if (plane != OMAP_DSS_WB)

			REG_FLD_MOD(DISPC_OVL_ATTRIBUTES2(plane), 0, 8, 8);
@@ -2384,20 +2395,10 @@ static int dispc_ovl_setup_common(enum omap_plane_id plane, 
	if (paddr == 0 && rotation_type != OMAP_DSS_ROT_TILER)

		return -EINVAL;



	switch (color_mode) {

	case OMAP_DSS_COLOR_YUV2:

	case OMAP_DSS_COLOR_UYVY:

	case OMAP_DSS_COLOR_NV12:

		if (in_width & 1) {

			DSSERR("input width %d is not even for YUV format\n",

				in_width);

	if (format_is_yuv(color_mode) && (in_width & 1)) {

		DSSERR("input width %d is not even for YUV format\n", in_width);

		return -EINVAL;

	}

		break;



	default:

		break;

	}



	out_width = out_width == 0 ? width : out_width;

	out_height = out_height == 0 ? height : out_height;
@@ -2433,26 +2434,15 @@ static int dispc_ovl_setup_common(enum omap_plane_id plane, 
		DSSDBG("predecimation %d x %x, new input size %d x %d\n",

			x_predecim, y_predecim, in_width, in_height);



	switch (color_mode) {

	case OMAP_DSS_COLOR_YUV2:

	case OMAP_DSS_COLOR_UYVY:

	case OMAP_DSS_COLOR_NV12:

		if (in_width & 1) {

	if (format_is_yuv(color_mode) && (in_width & 1)) {

		DSSDBG("predecimated input width is not even for YUV format\n");

		DSSDBG("adjusting input width %d -> %d\n",

			in_width, in_width & ~1);



		in_width &= ~1;

	}

		break;



	default:

		break;

	}



	if (color_mode == OMAP_DSS_COLOR_YUV2 ||

			color_mode == OMAP_DSS_COLOR_UYVY ||

			color_mode == OMAP_DSS_COLOR_NV12)

	if (format_is_yuv(color_mode))

		cconv = 1;



	if (ilace && !fieldmode) {

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