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 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);