linux-kernel - [PATCH v1 3/5] drm/mediatek: mtk_dpi: Add support for additional output formats

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250409131306.108635-4-angelogioacchino.delregno@collabora.com>
Date: Wed,  9 Apr 2025 15:13:04 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: chunkuang.hu@...nel.org
Cc: p.zabel@...gutronix.de,
	airlied@...il.com,
	simona@...ll.ch,
	matthias.bgg@...il.com,
	angelogioacchino.delregno@...labora.com,
	dri-devel@...ts.freedesktop.org,
	linux-mediatek@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	kernel@...labora.com,
	lewis.liao@...iatek.com,
	ives.chenjh@...iatek.com,
	tommyyl.chen@...iatek.com,
	jason-jh.lin@...iatek.com
Subject: [PATCH v1 3/5] drm/mediatek: mtk_dpi: Add support for additional output formats

Add support for configuring the Display Parallel Interface block
to output YUV444 8/10 bits, YUV422 10/12 bits (8 bits support is
already present), BGR 8-bits, and RGB 10-bits.

The enablement of the various additional output formats in SoCs
platform data will be done in a different change.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 drivers/gpu/drm/mediatek/mtk_dpi.c | 33 ++++++++++++++++++++++++++++--
 1 file changed, 31 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index 5a66dfe3ad40..a9e8113a1618 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -59,7 +59,8 @@ enum mtk_dpi_out_channel_swap {
 
 enum mtk_dpi_out_color_format {
 	MTK_DPI_COLOR_FORMAT_RGB,
-	MTK_DPI_COLOR_FORMAT_YCBCR_422
+	MTK_DPI_COLOR_FORMAT_YCBCR_422,
+	MTK_DPI_COLOR_FORMAT_YCBCR_444
 };
 
 struct mtk_dpi {
@@ -450,9 +451,15 @@ static void mtk_dpi_config_disable_edge(struct mtk_dpi *dpi)
 static void mtk_dpi_config_color_format(struct mtk_dpi *dpi,
 					enum mtk_dpi_out_color_format format)
 {
-	mtk_dpi_config_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_RGB);
+	mtk_dpi_config_channel_swap(dpi, dpi->channel_swap);
 
 	switch (format) {
+	case MTK_DPI_COLOR_FORMAT_YCBCR_444:
+		mtk_dpi_config_yuv422_enable(dpi, false);
+		mtk_dpi_config_csc_enable(dpi, true);
+		if (dpi->conf->swap_input_support)
+			mtk_dpi_config_swap_input(dpi, false);
+		break;
 	case MTK_DPI_COLOR_FORMAT_YCBCR_422:
 		mtk_dpi_config_yuv422_enable(dpi, true);
 		mtk_dpi_config_csc_enable(dpi, true);
@@ -743,10 +750,18 @@ static unsigned int mtk_dpi_bus_fmt_bit_num(unsigned int out_bus_format)
 	switch (out_bus_format) {
 	default:
 	case MEDIA_BUS_FMT_RGB888_1X24:
+	case MEDIA_BUS_FMT_BGR888_1X24:
 	case MEDIA_BUS_FMT_RGB888_2X12_LE:
 	case MEDIA_BUS_FMT_RGB888_2X12_BE:
 	case MEDIA_BUS_FMT_YUYV8_1X16:
+	case MEDIA_BUS_FMT_YUV8_1X24:
 		return MTK_DPI_OUT_BIT_NUM_8BITS;
+	case MEDIA_BUS_FMT_RGB101010_1X30:
+	case MEDIA_BUS_FMT_YUYV10_1X20:
+	case MEDIA_BUS_FMT_YUV10_1X30:
+		return MTK_DPI_OUT_BIT_NUM_10BITS;
+	case MEDIA_BUS_FMT_YUYV12_1X24:
+		return MTK_DPI_OUT_BIT_NUM_12BITS;
 	}
 }
 
@@ -757,8 +772,15 @@ static unsigned int mtk_dpi_bus_fmt_channel_swap(unsigned int out_bus_format)
 	case MEDIA_BUS_FMT_RGB888_1X24:
 	case MEDIA_BUS_FMT_RGB888_2X12_LE:
 	case MEDIA_BUS_FMT_RGB888_2X12_BE:
+	case MEDIA_BUS_FMT_RGB101010_1X30:
 	case MEDIA_BUS_FMT_YUYV8_1X16:
+	case MEDIA_BUS_FMT_YUYV10_1X20:
+	case MEDIA_BUS_FMT_YUYV12_1X24:
 		return MTK_DPI_OUT_CHANNEL_SWAP_RGB;
+	case MEDIA_BUS_FMT_BGR888_1X24:
+	case MEDIA_BUS_FMT_YUV8_1X24:
+	case MEDIA_BUS_FMT_YUV10_1X30:
+		return MTK_DPI_OUT_CHANNEL_SWAP_BGR;
 	}
 }
 
@@ -767,11 +789,18 @@ static unsigned int mtk_dpi_bus_fmt_color_format(unsigned int out_bus_format)
 	switch (out_bus_format) {
 	default:
 	case MEDIA_BUS_FMT_RGB888_1X24:
+	case MEDIA_BUS_FMT_BGR888_1X24:
 	case MEDIA_BUS_FMT_RGB888_2X12_LE:
 	case MEDIA_BUS_FMT_RGB888_2X12_BE:
+	case MEDIA_BUS_FMT_RGB101010_1X30:
 		return MTK_DPI_COLOR_FORMAT_RGB;
 	case MEDIA_BUS_FMT_YUYV8_1X16:
+	case MEDIA_BUS_FMT_YUYV10_1X20:
+	case MEDIA_BUS_FMT_YUYV12_1X24:
 		return MTK_DPI_COLOR_FORMAT_YCBCR_422;
+	case MEDIA_BUS_FMT_YUV8_1X24:
+	case MEDIA_BUS_FMT_YUV10_1X30:
+		return MTK_DPI_COLOR_FORMAT_YCBCR_444;
 	}
 }
 
-- 
2.49.0