From: Jagan Teki <jagan@edgeble.ai>
Date: Mon, 31 Jul 2023 11:00:06 +0000 (+0530)
Subject: drm/rockchip: dsi: Add rv1126 MIPI DSI support
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=11fdb231f4127bf60839a63a8c7ed640ebe4751a;p=linux.git

drm/rockchip: dsi: Add rv1126 MIPI DSI support

RV1126 MIPI DSI supports V1.2 DPHY with 4 lanes and 1Gbps transfer
rate for lane.

Add support for it.

Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230731110012.2913742-9-jagan@edgeble.ai
---

diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
index 0100162a73b29..8bafb2a2747fa 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
@@ -198,6 +198,11 @@
 #define RK3568_DSI1_TURNDISABLE		BIT(2)
 #define RK3568_DSI1_FORCERXMODE		BIT(0)
 
+#define RV1126_GRF_DSIPHY_CON		0x10220
+#define RV1126_DSI_FORCETXSTOPMODE	(0xf << 4)
+#define RV1126_DSI_TURNDISABLE		BIT(2)
+#define RV1126_DSI_FORCERXMODE		BIT(0)
+
 #define HIWORD_UPDATE(val, mask)	(val | (mask) << 16)
 
 enum {
@@ -1651,6 +1656,18 @@ static const struct rockchip_dw_dsi_chip_data rk3568_chip_data[] = {
 	{ /* sentinel */ }
 };
 
+static const struct rockchip_dw_dsi_chip_data rv1126_chip_data[] = {
+	{
+		.reg = 0xffb30000,
+		.lanecfg1_grf_reg = RV1126_GRF_DSIPHY_CON,
+		.lanecfg1 = HIWORD_UPDATE(0, RV1126_DSI_TURNDISABLE |
+					     RV1126_DSI_FORCERXMODE |
+					     RV1126_DSI_FORCETXSTOPMODE),
+		.max_data_lanes = 4,
+	},
+	{ /* sentinel */ }
+};
+
 static const struct of_device_id dw_mipi_dsi_rockchip_dt_ids[] = {
 	{
 	 .compatible = "rockchip,px30-mipi-dsi",
@@ -1664,6 +1681,9 @@ static const struct of_device_id dw_mipi_dsi_rockchip_dt_ids[] = {
 	}, {
 	 .compatible = "rockchip,rk3568-mipi-dsi",
 	 .data = &rk3568_chip_data,
+	}, {
+	 .compatible = "rockchip,rv1126-mipi-dsi",
+	 .data = &rv1126_chip_data,
 	},
 	{ /* sentinel */ }
 };