diff mbox series

[v4,1/9] rockchip: video: vop: Use endpoint compatible string to find VOP mode

Message ID 20210305103307.004041703@rtp-net.org
State Accepted
Commit 7fe2ebf3a326026b9ab80ed94da3cd217c84724d
Delegated to: Anatolij Gustschin
Headers show
Series rk3399 (Pinebook pro) EDP support | expand

Commit Message

Arnaud Patard (Rtp) March 5, 2021, 10:27 a.m. UTC 
The current code is using an hard coded enum and the of node reg value of
endpoint to find out if the endpoint is mipi/hdmi/lvds/edp/dp. The order
is different between rk3288, rk3399 vop little, rk3399 vop big.

A possible solution would be to make sure that the rk3288.dtsi and 
rk3399.dtsi files have "expected" reg value or an other solution is
to find the kind of endpoint by comparing the endpoint compatible value.

This patch is implementing the more flexible second solution.

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
diff mbox series

Patch

Index: u-boot/arch/arm/include/asm/arch-rockchip/vop_rk3288.h
===================================================================
--- u-boot.orig/arch/arm/include/asm/arch-rockchip/vop_rk3288.h
+++ u-boot/arch/arm/include/asm/arch-rockchip/vop_rk3288.h
@@ -85,26 +85,13 @@  enum {
 	LB_RGB_1280X8 = 0x5
 };
 
-#if defined(CONFIG_ROCKCHIP_RK3399)
 enum vop_modes {
 	VOP_MODE_EDP = 0,
 	VOP_MODE_MIPI,
 	VOP_MODE_HDMI,
-	VOP_MODE_MIPI1,
-	VOP_MODE_DP,
-	VOP_MODE_NONE,
-};
-#else
-enum vop_modes {
-	VOP_MODE_EDP = 0,
-	VOP_MODE_HDMI,
 	VOP_MODE_LVDS,
-	VOP_MODE_MIPI,
-	VOP_MODE_NONE,
-	VOP_MODE_AUTO_DETECT,
-	VOP_MODE_UNKNOWN,
+	VOP_MODE_DP,
 };
-#endif
 
 /* VOP_VERSION_INFO */
 #define M_FPGA_VERSION (0xffff << 16)
Index: u-boot/drivers/video/rockchip/rk_vop.c
===================================================================
--- u-boot.orig/drivers/video/rockchip/rk_vop.c
+++ u-boot/drivers/video/rockchip/rk_vop.c
@@ -236,12 +236,11 @@  static int rk_display_init(struct udevic
 	struct clk clk;
 	enum video_log2_bpp l2bpp;
 	ofnode remote;
+	const char *compat;
 
 	debug("%s(%s, %lu, %s)\n", __func__,
 	      dev_read_name(dev), fbbase, ofnode_get_name(ep_node));
 
-	vop_id = ofnode_read_s32_default(ep_node, "reg", -1);
-	debug("vop_id=%d\n", vop_id);
 	ret = ofnode_read_u32(ep_node, "remote-endpoint", &remote_phandle);
 	if (ret)
 		return ret;
@@ -283,6 +282,28 @@  static int rk_display_init(struct udevic
 		if (disp)
 			break;
 	};
+	compat = ofnode_get_property(remote, "compatible", NULL);
+	if (!compat) {
+		debug("%s(%s): Failed to find compatible property\n",
+		      __func__, dev_read_name(dev));
+		return -EINVAL;
+	}
+	if (strstr(compat, "edp")) {
+		vop_id = VOP_MODE_EDP;
+	} else if (strstr(compat, "mipi")) {
+		vop_id = VOP_MODE_MIPI;
+	} else if (strstr(compat, "hdmi")) {
+		vop_id = VOP_MODE_HDMI;
+	} else if (strstr(compat, "cdn-dp")) {
+		vop_id = VOP_MODE_DP;
+	} else if (strstr(compat, "lvds")) {
+		vop_id = VOP_MODE_LVDS;
+	} else {
+		debug("%s(%s): Failed to find vop mode for %s\n",
+		      __func__, dev_read_name(dev), compat);
+		return -EINVAL;
+	}
+	debug("vop_id=%d\n", vop_id);
 
 	disp_uc_plat = dev_get_uclass_plat(disp);
 	debug("Found device '%s', disp_uc_priv=%p\n", disp->name, disp_uc_plat);