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authorGuillaume Ranquet <granquet@baylibre.com>2022-07-01 06:58:36 +0300
committerChun-Kuang Hu <chunkuang.hu@kernel.org>2022-07-04 17:27:48 +0300
commit3145095fae25de45b029746730f5249823ba059c (patch)
tree30b2e39a7eabdcc560af39fc6313b21c8853c165 /drivers/gpu/drm/mediatek
parentcf060519e48e7ca9844325d73bc3225182ac6223 (diff)
downloadlinux-3145095fae25de45b029746730f5249823ba059c.tar.xz
drm/mediatek: dpi: Implement a swap_input toggle in SoC config
The hardware design of dp_intf does not support input swap, so we add a bit of flexibility to support SoCs without swap_input support. We also add a warning message if the hardware is not supported and it needs to swap input. Signed-off-by: Guillaume Ranquet <granquet@baylibre.com> Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20220701035845.16458-8-rex-bc.chen@mediatek.com/ Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/mediatek')
-rw-r--r--drivers/gpu/drm/mediatek/mtk_dpi.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index 9b17507fe5d4..0f7f56686079 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -121,6 +121,7 @@ struct mtk_dpi_yc_limit {
* @output_fmts: Array of supported output formats.
* @num_output_fmts: Quantity of supported output formats.
* @is_ck_de_pol: Support CK/DE polarity.
+ * @swap_input_support: Support input swap function.
*/
struct mtk_dpi_conf {
unsigned int (*cal_factor)(int clock);
@@ -130,6 +131,7 @@ struct mtk_dpi_conf {
const u32 *output_fmts;
u32 num_output_fmts;
bool is_ck_de_pol;
+ bool swap_input_support;
};
static void mtk_dpi_mask(struct mtk_dpi *dpi, u32 offset, u32 val, u32 mask)
@@ -393,7 +395,8 @@ static void mtk_dpi_config_color_format(struct mtk_dpi *dpi,
/* only support RGB888 */
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);
}
@@ -804,6 +807,7 @@ 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,
};
static const struct mtk_dpi_conf mt2701_conf = {
@@ -814,6 +818,7 @@ 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,
};
static const struct mtk_dpi_conf mt8183_conf = {
@@ -823,6 +828,7 @@ 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,
};
static const struct mtk_dpi_conf mt8192_conf = {
@@ -832,6 +838,7 @@ static const struct mtk_dpi_conf mt8192_conf = {
.output_fmts = mt8183_output_fmts,
.num_output_fmts = ARRAY_SIZE(mt8183_output_fmts),
.is_ck_de_pol = true,
+ .swap_input_support = true,
};
static int mtk_dpi_probe(struct platform_device *pdev)