[PATCH v15 14/16] drm/mediatek: dpi: add config to support direct connection to dpi panels

[Bo-Chen Chen]

MediaTek dpi supports direct connection to dpi panels while dp_intf does not
support. Therefore, add a config "support_direct_pin" to control this.

Signed-off-by: Bo-Chen Chen <rex-bc.chen at mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
---
 drivers/gpu/drm/mediatek/mtk_dpi.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index 0a604bf68b1b..a65b85c4c8d5 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -124,6 +124,7 @@ struct mtk_dpi_yc_limit {
  * @is_ck_de_pol: Support CK/DE polarity.
  * @swap_input_support: Support input swap function.
  * @color_fmt_trans_support: Enable color format transfer.
+ * @support_direct_pin: IP supports direct connection to dpi panels.
  * @dimension_mask: Mask used for HWIDTH, HPORCH, VSYNC_WIDTH and VSYNC_PORCH
  *		    (no shift).
  * @hvsize_mask: Mask of HSIZE and VSIZE mask (no shift).
@@ -141,6 +142,7 @@ struct mtk_dpi_conf {
 	bool is_ck_de_pol;
 	bool swap_input_support;
 	bool color_fmt_trans_support;
+	bool support_direct_pin;
 	u32 dimension_mask;
 	u32 hvsize_mask;
 	u32 channel_swap_shift;
@@ -608,11 +610,13 @@ static int mtk_dpi_set_display_mode(struct mtk_dpi *dpi,
 	mtk_dpi_config_channel_limit(dpi);
 	mtk_dpi_config_bit_num(dpi, dpi->bit_num);
 	mtk_dpi_config_channel_swap(dpi, dpi->channel_swap);
-	mtk_dpi_config_yc_map(dpi, dpi->yc_map);
 	mtk_dpi_config_color_format(dpi, dpi->color_format);
-	mtk_dpi_config_2n_h_fre(dpi);
-	mtk_dpi_dual_edge(dpi);
-	mtk_dpi_config_disable_edge(dpi);
+	if (dpi->conf->support_direct_pin) {
+		mtk_dpi_config_yc_map(dpi, dpi->yc_map);
+		mtk_dpi_config_2n_h_fre(dpi);
+		mtk_dpi_dual_edge(dpi);
+		mtk_dpi_config_disable_edge(dpi);
+	}
 	mtk_dpi_sw_reset(dpi, false);
 
 	return 0;
@@ -870,6 +874,7 @@ static const struct mtk_dpi_conf mt8173_conf = {
 	.num_output_fmts = ARRAY_SIZE(mt8173_output_fmts),
 	.is_ck_de_pol = true,
 	.swap_input_support = true,
+	.support_direct_pin = true,
 	.dimension_mask = HPW_MASK,
 	.hvsize_mask = HSIZE_MASK,
 	.channel_swap_shift = CH_SWAP,
@@ -886,6 +891,7 @@ static const struct mtk_dpi_conf mt2701_conf = {
 	.num_output_fmts = ARRAY_SIZE(mt8173_output_fmts),
 	.is_ck_de_pol = true,
 	.swap_input_support = true,
+	.support_direct_pin = true,
 	.dimension_mask = HPW_MASK,
 	.hvsize_mask = HSIZE_MASK,
 	.channel_swap_shift = CH_SWAP,
@@ -901,6 +907,7 @@ static const struct mtk_dpi_conf mt8183_conf = {
 	.num_output_fmts = ARRAY_SIZE(mt8183_output_fmts),
 	.is_ck_de_pol = true,
 	.swap_input_support = true,
+	.support_direct_pin = true,
 	.dimension_mask = HPW_MASK,
 	.hvsize_mask = HSIZE_MASK,
 	.channel_swap_shift = CH_SWAP,
@@ -916,6 +923,7 @@ static const struct mtk_dpi_conf mt8192_conf = {
 	.num_output_fmts = ARRAY_SIZE(mt8183_output_fmts),
 	.is_ck_de_pol = true,
 	.swap_input_support = true,
+	.support_direct_pin = true,
 	.dimension_mask = HPW_MASK,
 	.hvsize_mask = HSIZE_MASK,
 	.channel_swap_shift = CH_SWAP,
-- 
2.18.0