linux-kernel - [PATCH 7/9] drm/rockchip: dsi: Add support for rk3506

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <20251106020632.92-8-kernel@airkyi.com>
Date: Thu,  6 Nov 2025 10:06:30 +0800
From: Chaoyi Chen <kernel@...kyi.com>
To: Neil Armstrong <neil.armstrong@...aro.org>,
	Jessica Zhang <jessica.zhang@....qualcomm.com>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Sandy Huang <hjc@...k-chips.com>,
	Heiko Stübner <heiko@...ech.de>,
	Andy Yan <andy.yan@...k-chips.com>,
	Vinod Koul <vkoul@...nel.org>,
	Kishon Vijay Abraham I <kishon@...nel.org>
Cc: dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-phy@...ts.infradead.org,
	Chaoyi Chen <chaoyi.chen@...k-chips.com>,
	Hongming Zou <hongming.zou@...k-chips.com>
Subject: [PATCH 7/9] drm/rockchip: dsi: Add support for rk3506

From: Chaoyi Chen <chaoyi.chen@...k-chips.com>

The dsi controller found on RK3506 supports up to 2 lanes.

Signed-off-by: Hongming Zou <hongming.zou@...k-chips.com>
Signed-off-by: Chaoyi Chen <chaoyi.chen@...k-chips.com>
---
 .../gpu/drm/rockchip/dw-mipi-dsi-rockchip.c   | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
index 5523911b990d..06e58cf287d3 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
@@ -192,6 +192,11 @@
 #define RK3568_DSI0_TURNDISABLE		BIT(2)
 #define RK3568_DSI0_FORCERXMODE		BIT(0)
 
+#define RK3506_SYS_GRF_SOC_CON6		0x0018
+#define RK3506_DSI_FORCETXSTOPMODE	(0xf << 4)
+#define RK3506_DSI_TURNDISABLE		BIT(2)
+#define RK3506_DSI_FORCERXMODE		BIT(0)
+
 /*
  * Note these registers do not appear in the datasheet, they are
  * however present in the BSP driver which is where these values
@@ -1643,6 +1648,18 @@ static const struct rockchip_dw_dsi_chip_data rk3399_chip_data[] = {
 	{ /* sentinel */ }
 };
 
+static const struct rockchip_dw_dsi_chip_data rk3506_chip_data[] = {
+	{
+		.reg = 0xff640000,
+		.lanecfg1_grf_reg = RK3506_SYS_GRF_SOC_CON6,
+		.lanecfg1 = (FIELD_PREP_WM16_CONST(RK3506_DSI_TURNDISABLE, 0) |
+			     FIELD_PREP_WM16_CONST(RK3506_DSI_FORCERXMODE, 0) |
+			     FIELD_PREP_WM16_CONST(RK3506_DSI_FORCETXSTOPMODE, 0)),
+		.max_data_lanes = 2,
+	},
+	{ /* sentinel */ }
+};
+
 static const struct rockchip_dw_dsi_chip_data rk3568_chip_data[] = {
 	{
 		.reg = 0xfe060000,
@@ -1690,6 +1707,9 @@ static const struct of_device_id dw_mipi_dsi_rockchip_dt_ids[] = {
 	}, {
 	 .compatible = "rockchip,rk3399-mipi-dsi",
 	 .data = &rk3399_chip_data,
+	}, {
+	 .compatible = "rockchip,rk3506-mipi-dsi",
+	 .data = &rk3506_chip_data,
 	}, {
 	 .compatible = "rockchip,rk3568-mipi-dsi",
 	 .data = &rk3568_chip_data,
-- 
2.51.1