From 9ad8b0cdcfc7853437cbde2795532dda7bfeb7f8 Mon Sep 17 00:00:00 2001
From: Allon Huang <allon.huang@rock-chips.com>
Date: Mon, 26 Oct 2020 16:41:35 +0800
Subject: [PATCH] media: rockchip: cif: support rk3568 csi host

Signed-off-by: Allon Huang <allon.huang@rock-chips.com>
Change-Id: I78e3ff7722041153134c4411cf48abe2a609868e
---
 .../media/platform/rockchip/cif/mipi-csi2.c   | 19 +++++++++++++++++--
 drivers/media/platform/rockchip/cif/version.h |  1 +
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/rockchip/cif/mipi-csi2.c b/drivers/media/platform/rockchip/cif/mipi-csi2.c
index d2e82154ad9d..786136e9f03b 100644
--- a/drivers/media/platform/rockchip/cif/mipi-csi2.c
+++ b/drivers/media/platform/rockchip/cif/mipi-csi2.c
@@ -48,12 +48,17 @@ MODULE_PARM_DESC(debug_csi2, "Debug level (0-1)");
 #define IMX_MEDIA_GRP_ID_CSI2      BIT(8)
 #define CSIHOST_MAX_ERRINT_COUNT	10
 
+/*
+ * add new chip id in tail in time order
+ * by increasing to distinguish csi2 host version
+ */
 enum rkcsi2_chip_id {
 	CHIP_PX30_CSI2,
 	CHIP_RK1808_CSI2,
 	CHIP_RK3128_CSI2,
 	CHIP_RK3288_CSI2,
-	CHIP_RV1126_CSI2
+	CHIP_RV1126_CSI2,
+	CHIP_RK3568_CSI2,
 };
 
 enum csi2_pads {
@@ -119,8 +124,10 @@ struct csi2_dev {
 
 /* CSI Host Registers Define */
 #define CSIHOST_N_LANES		0x04
+#define CSIHOST_DPHY_SHUTDOWNZ	0x08
 #define CSIHOST_PHY_RSTZ	0x0c
 #define CSIHOST_RESETN		0x10
+#define CSIHOST_PHY_STATE	0x14
 #define CSIHOST_ERR1		0x20
 #define CSIHOST_ERR2		0x24
 #define CSIHOST_MSK1		0x28
@@ -787,6 +794,11 @@ static const struct csi2_match_data rv1126_csi2_match_data = {
 	.num_pads = CSI2_NUM_PADS
 };
 
+static const struct csi2_match_data rk3568_csi2_match_data = {
+	.chip_id = CHIP_RK3568_CSI2,
+	.num_pads = CSI2_NUM_PADS,
+};
+
 static const struct of_device_id csi2_dt_ids[] = {
 	{
 		.compatible = "rockchip,rk1808-mipi-csi2",
@@ -796,11 +808,14 @@ static const struct of_device_id csi2_dt_ids[] = {
 		.compatible = "rockchip,rk3288-mipi-csi2",
 		.data = &rk3288_csi2_match_data,
 	},
+	{
+		.compatible = "rockchip,rk3568-mipi-csi2",
+		.data = &rk3568_csi2_match_data,
+	},
 	{
 		.compatible = "rockchip,rv1126-mipi-csi2",
 		.data = &rv1126_csi2_match_data,
 	},
-
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, csi2_dt_ids);
diff --git a/drivers/media/platform/rockchip/cif/version.h b/drivers/media/platform/rockchip/cif/version.h
index 42294454b992..bca91e2cd192 100644
--- a/drivers/media/platform/rockchip/cif/version.h
+++ b/drivers/media/platform/rockchip/cif/version.h
@@ -51,6 +51,7 @@
  *3. support bt1120 single path
  *v0.1.9
  *1. support rk3568 cif
+ *2. support rk3568 csi-host
  */
 
 #define RKCIF_DRIVER_VERSION RKCIF_API_VERSION