drm/mediatek: dpi: Move swap_shift to SoC config

Add flexibility by moving the swap shift value to SoC specific config.

Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20220701035845.16458-11-rex-bc.chen@mediatek.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>

diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index 9d1f8a0..669e324 100644 (file)
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -125,6 +125,7 @@ struct mtk_dpi_yc_limit {
  * @dimension_mask: Mask used for HWIDTH, HPORCH, VSYNC_WIDTH and VSYNC_PORCH
  *                 (no shift).
  * @hvsize_mask: Mask of HSIZE and VSIZE mask (no shift).
+ * @channel_swap_shift: Shift value of channel swap.
  */
 struct mtk_dpi_conf {
        unsigned int (*cal_factor)(int clock);
@@ -137,6 +138,7 @@ struct mtk_dpi_conf {
        bool swap_input_support;
        u32 dimension_mask;
        u32 hvsize_mask;
+       u32 channel_swap_shift;
 };
 
 static void mtk_dpi_mask(struct mtk_dpi *dpi, u32 offset, u32 val, u32 mask)
@@ -367,7 +369,9 @@ static void mtk_dpi_config_channel_swap(struct mtk_dpi *dpi,
                break;
        }
 
-       mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, val << CH_SWAP, CH_SWAP_MASK);
+       mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING,
+                    val << dpi->conf->channel_swap_shift,
+                    CH_SWAP_MASK << dpi->conf->channel_swap_shift);
 }
 
 static void mtk_dpi_config_yuv422_enable(struct mtk_dpi *dpi, bool enable)
@@ -817,6 +821,7 @@ static const struct mtk_dpi_conf mt8173_conf = {
        .swap_input_support = true,
        .dimension_mask = HPW_MASK,
        .hvsize_mask = HSIZE_MASK,
+       .channel_swap_shift = CH_SWAP,
 };
 
 static const struct mtk_dpi_conf mt2701_conf = {
@@ -830,6 +835,7 @@ static const struct mtk_dpi_conf mt2701_conf = {
        .swap_input_support = true,
        .dimension_mask = HPW_MASK,
        .hvsize_mask = HSIZE_MASK,
+       .channel_swap_shift = CH_SWAP,
 };
 
 static const struct mtk_dpi_conf mt8183_conf = {
@@ -842,6 +848,7 @@ static const struct mtk_dpi_conf mt8183_conf = {
        .swap_input_support = true,
        .dimension_mask = HPW_MASK,
        .hvsize_mask = HSIZE_MASK,
+       .channel_swap_shift = CH_SWAP,
 };
 
 static const struct mtk_dpi_conf mt8192_conf = {
@@ -854,6 +861,7 @@ static const struct mtk_dpi_conf mt8192_conf = {
        .swap_input_support = true,
        .dimension_mask = HPW_MASK,
        .hvsize_mask = HSIZE_MASK,
+       .channel_swap_shift = CH_SWAP,
 };
 
 static int mtk_dpi_probe(struct platform_device *pdev)