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From:   Guillaume Ranquet <granquet@baylibre.com>
To:     chunkuang.hu@kernel.org, p.zabel@pengutronix.de, airlied@linux.ie,
        daniel@ffwll.ch, robh+dt@kernel.org,
        maarten.lankhorst@linux.intel.com, mripard@kernel.org,
        tzimmermann@suse.de, matthias.bgg@gmail.com,
        chunfeng.yun@mediatek.com, kishon@ti.com, vkoul@kernel.org,
        deller@gmx.de, ck.hu@mediatek.com, jitao.shi@mediatek.com,
        angelogioacchino.delregno@collabora.com
Cc:     dri-devel@lists.freedesktop.org,
        linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-phy@lists.infradead.org, linux-fbdev@vger.kernel.org
Subject: [PATCH v8 07/19] drm/mediatek: dpi: implement a swap_input toggle in board config
Date:   Fri, 18 Feb 2022 15:54:25 +0100
Message-Id: <20220218145437.18563-8-granquet@baylibre.com>
In-Reply-To: <20220218145437.18563-1-granquet@baylibre.com>
References: <20220218145437.18563-1-granquet@baylibre.com>
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Adds a bit of flexibility to support boards without swap_input support

Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
---
 drivers/gpu/drm/mediatek/mtk_dpi.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index 545a1337cc899..454f8563efae4 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -126,6 +126,7 @@ struct mtk_dpi_conf {
 	const u32 *output_fmts;
 	u32 num_output_fmts;
 	bool is_ck_de_pol;
+	bool swap_input_support;
 	const struct mtk_dpi_yc_limit *limit;
 };
 
@@ -378,18 +379,21 @@ static void mtk_dpi_config_color_format(struct mtk_dpi *dpi,
 	    (format == MTK_DPI_COLOR_FORMAT_YCBCR_444_FULL)) {
 		mtk_dpi_config_yuv422_enable(dpi, false);
 		mtk_dpi_config_csc_enable(dpi, true);
-		mtk_dpi_config_swap_input(dpi, false);
+		if (dpi->conf->swap_input_support)
+			mtk_dpi_config_swap_input(dpi, false);
 		mtk_dpi_config_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_BGR);
 	} else if ((format == MTK_DPI_COLOR_FORMAT_YCBCR_422) ||
 		   (format == MTK_DPI_COLOR_FORMAT_YCBCR_422_FULL)) {
 		mtk_dpi_config_yuv422_enable(dpi, true);
 		mtk_dpi_config_csc_enable(dpi, true);
-		mtk_dpi_config_swap_input(dpi, true);
+		if (dpi->conf->swap_input_support)
+			mtk_dpi_config_swap_input(dpi, true);
 		mtk_dpi_config_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_RGB);
 	} else {
 		mtk_dpi_config_yuv422_enable(dpi, false);
 		mtk_dpi_config_csc_enable(dpi, false);
-		mtk_dpi_config_swap_input(dpi, false);
+		if (dpi->conf->swap_input_support)
+			mtk_dpi_config_swap_input(dpi, false);
 		mtk_dpi_config_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_RGB);
 	}
 }
@@ -808,6 +812,7 @@ static const struct mtk_dpi_conf mt8173_conf = {
 	.output_fmts = mt8173_output_fmts,
 	.num_output_fmts = ARRAY_SIZE(mt8173_output_fmts),
 	.is_ck_de_pol = true,
+	.swap_input_support = true,
 	.limit = &mtk_dpi_limit,
 };
 
@@ -819,6 +824,7 @@ static const struct mtk_dpi_conf mt2701_conf = {
 	.output_fmts = mt8173_output_fmts,
 	.num_output_fmts = ARRAY_SIZE(mt8173_output_fmts),
 	.is_ck_de_pol = true,
+	.swap_input_support = true,
 	.limit = &mtk_dpi_limit,
 };
 
@@ -829,6 +835,7 @@ static const struct mtk_dpi_conf mt8183_conf = {
 	.output_fmts = mt8183_output_fmts,
 	.num_output_fmts = ARRAY_SIZE(mt8183_output_fmts),
 	.is_ck_de_pol = true,
+	.swap_input_support = true,
 	.limit = &mtk_dpi_limit,
 };
 
@@ -839,6 +846,7 @@ static const struct mtk_dpi_conf mt8192_conf = {
 	.output_fmts = mt8173_output_fmts,
 	.num_output_fmts = ARRAY_SIZE(mt8173_output_fmts),
 	.is_ck_de_pol = true,
+	.swap_input_support = true,
 	.limit = &mtk_dpi_limit,
 };
 
-- 
2.34.1