[09/22] clk: mediatek: Add MT8195 imgsys clock support

diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index 6a6e496d08a4..f92d0b6b7eec 100644
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -612,6 +612,12 @@  config COMMON_CLK_MT8195_CCUSYS
 	help
 	  This driver supports MediaTek MT8195 ccusys clocks.
 
+config COMMON_CLK_MT8195_IMGSYS
+	bool "Clock driver for MediaTek MT8195 imgsys"
+	depends on COMMON_CLK_MT8195
+	help
+	  This driver supports MediaTek MT8195 imgsys clocks.
+
 config COMMON_CLK_MT8516
 	bool "Clock driver for MediaTek MT8516"
 	depends on ARCH_MEDIATEK || COMPILE_TEST
diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index bb8aac6f9185..1768eda917c2 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -85,5 +85,6 @@  obj-$(CONFIG_COMMON_CLK_MT8195_AUDSYS) += clk-mt8195-aud.o
 obj-$(CONFIG_COMMON_CLK_MT8195_AUDSYS_SRC) += clk-mt8195-aud_src.o
 obj-$(CONFIG_COMMON_CLK_MT8195_CAMSYS) += clk-mt8195-cam.o
 obj-$(CONFIG_COMMON_CLK_MT8195_CCUSYS) += clk-mt8195-ccu.o
+obj-$(CONFIG_COMMON_CLK_MT8195_IMGSYS) += clk-mt8195-img.o
 obj-$(CONFIG_COMMON_CLK_MT8516) += clk-mt8516.o
 obj-$(CONFIG_COMMON_CLK_MT8516_AUDSYS) += clk-mt8516-aud.o
diff --git a/drivers/clk/mediatek/clk-mt8195-img.c b/drivers/clk/mediatek/clk-mt8195-img.c
new file mode 100644
index 000000000000..923fa82aedae
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8195-img.c
@@ -0,0 +1,98 @@ 
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright (c) 2021 MediaTek Inc.
+// Author: Chun-Jie Chen <chun-jie.chen@mediatek.com>
+
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+#include <dt-bindings/clock/mt8195-clk.h>
+
+static const struct mtk_gate_regs img_cg_regs = {
+	.set_ofs = 0x4,
+	.clr_ofs = 0x8,
+	.sta_ofs = 0x0,
+};
+
+#define GATE_IMG(_id, _name, _parent, _shift)			\
+	GATE_MTK(_id, _name, _parent, &img_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
+
+static const struct mtk_gate img_clks[] = {
+	GATE_IMG(CLK_IMG_LARB9, "img_larb9", "img_sel", 0),
+	GATE_IMG(CLK_IMG_TRAW0, "img_traw0", "img_sel", 1),
+	GATE_IMG(CLK_IMG_TRAW1, "img_traw1", "img_sel", 2),
+	GATE_IMG(CLK_IMG_TRAW2, "img_traw2", "img_sel", 3),
+	GATE_IMG(CLK_IMG_TRAW3, "img_traw3", "img_sel", 4),
+	GATE_IMG(CLK_IMG_DIP0, "img_dip0", "img_sel", 8),
+	GATE_IMG(CLK_IMG_WPE0, "img_wpe0", "img_sel", 9),
+	GATE_IMG(CLK_IMG_IPE, "img_ipe", "img_sel", 10),
+	GATE_IMG(CLK_IMG_DIP1, "img_dip1", "img_sel", 11),
+	GATE_IMG(CLK_IMG_WPE1, "img_wpe1", "img_sel", 12),
+	GATE_IMG(CLK_IMG_GALS, "img_gals", "img_sel", 31),
+};
+
+static const struct mtk_gate img1_dip_top_clks[] = {
+	GATE_IMG(CLK_IMG1_DIP_TOP_LARB10, "img1_dip_top_larb10", "img_sel", 0),
+	GATE_IMG(CLK_IMG1_DIP_TOP_DIP_TOP, "img1_dip_top_dip_top", "img_sel", 1),
+};
+
+static const struct mtk_gate img1_dip_nr_clks[] = {
+	GATE_IMG(CLK_IMG1_DIP_NR_RESERVE, "img1_dip_nr_reserve", "img_sel", 0),
+	GATE_IMG(CLK_IMG1_DIP_NR_DIP_NR, "img1_dip_nr_dip_nr", "img_sel", 1),
+};
+
+static const struct mtk_gate img1_wpe_clks[] = {
+	GATE_IMG(CLK_IMG1_WPE_LARB11, "img1_wpe_larb11", "img_sel", 0),
+	GATE_IMG(CLK_IMG1_WPE_WPE, "img1_wpe_wpe", "img_sel", 1),
+};
+
+static const struct mtk_clk_desc img_desc = {
+	.clks = img_clks,
+	.num_clks = ARRAY_SIZE(img_clks),
+};
+
+static const struct mtk_clk_desc img1_dip_top_desc = {
+	.clks = img1_dip_top_clks,
+	.num_clks = ARRAY_SIZE(img1_dip_top_clks),
+};
+
+static const struct mtk_clk_desc img1_dip_nr_desc = {
+	.clks = img1_dip_nr_clks,
+	.num_clks = ARRAY_SIZE(img1_dip_nr_clks),
+};
+
+static const struct mtk_clk_desc img1_wpe_desc = {
+	.clks = img1_wpe_clks,
+	.num_clks = ARRAY_SIZE(img1_wpe_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8195_img[] = {
+	{
+		.compatible = "mediatek,mt8195-imgsys",
+		.data = &img_desc,
+	}, {
+		.compatible = "mediatek,mt8195-imgsys1_dip_top",
+		.data = &img1_dip_top_desc,
+	}, {
+		.compatible = "mediatek,mt8195-imgsys1_dip_nr",
+		.data = &img1_dip_nr_desc,
+	}, {
+		.compatible = "mediatek,mt8195-imgsys1_wpe",
+		.data = &img1_wpe_desc,
+	}, {
+		/* sentinel */
+	}
+};
+
+static struct platform_driver clk_mt8195_img_drv = {
+	.probe = mtk_clk_simple_probe,
+	.driver = {
+		.name = "clk-mt8195-img",
+		.of_match_table = of_match_clk_mt8195_img,
+	},
+};
+
+builtin_platform_driver(clk_mt8195_img_drv);