rockchip: backport a fix for DRM register names

Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>

target/linux/rockchip/patches-5.15/008-0035-v5.19-drm-rockchip-Change-register-space-names-in-vop2.patch

@@ -0,0 +1,36 @@
+From 5ee8c8f930ba7d20717c4fc2d9f1ce0e757d1155 Mon Sep 17 00:00:00 2001
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Wed, 11 May 2022 10:21:08 +0200
+Subject: [PATCH] drm/rockchip: Change register space names in vop2
+
+"regs" seems to generic when there are multiple register spaces, so
+rename that one to "vop". Also change "gamma_lut" to better looking
+"gamma-lut".
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+Signed-off-by: Heiko Stuebner <heiko@sntech.de>
+Link: https://patchwork.freedesktop.org/patch/msgid/20220511082109.1110043-3-s.hauer@pengutronix.de
+---
+ drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
++++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
+@@ -2620,7 +2620,7 @@ static int vop2_bind(struct device *dev,
+ 
+ 	dev_set_drvdata(dev, vop2);
+ 
+-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
++	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vop");
+ 	if (!res) {
+ 		drm_err(vop2->drm, "failed to get vop2 register byname\n");
+ 		return -EINVAL;
+@@ -2637,7 +2637,7 @@ static int vop2_bind(struct device *dev,
+ 	if (ret)
+ 		return ret;
+ 
+-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "gamma_lut");
++	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "gamma-lut");
+ 	if (res) {
+ 		vop2->lut_regs = devm_ioremap_resource(dev, res);
+ 		if (IS_ERR(vop2->lut_regs))