clk: mediatek: Add MT8192 imgsys clock support

Add MT8192 imgsys and imgsys2 clock providers

Signed-off-by: Weiyi Lu <[email protected]>
Signed-off-by: Chun-Jie Chen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Ikjoon Jang <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>

Author: Chun-Jie Chen

drivers/clk/mediatek/Kconfig

@@ -520,6 +520,12 @@ config COMMON_CLK_MT8192_CAMSYS
 	help
 	  This driver supports MediaTek MT8192 camsys and camsys_raw clocks.
 
+config COMMON_CLK_MT8192_IMGSYS
+	bool "Clock driver for MediaTek MT8192 imgsys"
+	depends on COMMON_CLK_MT8192
+	help
+	  This driver supports MediaTek MT8192 imgsys and imgsys2 clocks.
+
 config COMMON_CLK_MT8516
 	bool "Clock driver for MediaTek MT8516"
 	depends on ARCH_MEDIATEK || COMPILE_TEST

drivers/clk/mediatek/Makefile

@@ -70,5 +70,6 @@ obj-$(CONFIG_COMMON_CLK_MT8183_VENCSYS) += clk-mt8183-venc.o
 obj-$(CONFIG_COMMON_CLK_MT8192) += clk-mt8192.o
 obj-$(CONFIG_COMMON_CLK_MT8192_AUDSYS) += clk-mt8192-aud.o
 obj-$(CONFIG_COMMON_CLK_MT8192_CAMSYS) += clk-mt8192-cam.o
+obj-$(CONFIG_COMMON_CLK_MT8192_IMGSYS) += clk-mt8192-img.o
 obj-$(CONFIG_COMMON_CLK_MT8516) += clk-mt8516.o
 obj-$(CONFIG_COMMON_CLK_MT8516_AUDSYS) += clk-mt8516-aud.o

drivers/clk/mediatek/clk-mt8192-img.c

@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright (c) 2021 MediaTek Inc.
+// Author: Chun-Jie Chen <[email protected]>
+
+#include <linux/clk-provider.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+#include <dt-bindings/clock/mt8192-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", "img1_sel", 0),
+	GATE_IMG(CLK_IMG_LARB10, "img_larb10", "img1_sel", 1),
+	GATE_IMG(CLK_IMG_DIP, "img_dip", "img1_sel", 2),
+	GATE_IMG(CLK_IMG_GALS, "img_gals", "img1_sel", 12),
+};
+
+static const struct mtk_gate img2_clks[] = {
+	GATE_IMG(CLK_IMG2_LARB11, "img2_larb11", "img1_sel", 0),
+	GATE_IMG(CLK_IMG2_LARB12, "img2_larb12", "img1_sel", 1),
+	GATE_IMG(CLK_IMG2_MFB, "img2_mfb", "img1_sel", 6),
+	GATE_IMG(CLK_IMG2_WPE, "img2_wpe", "img1_sel", 7),
+	GATE_IMG(CLK_IMG2_MSS, "img2_mss", "img1_sel", 8),
+	GATE_IMG(CLK_IMG2_GALS, "img2_gals", "img1_sel", 12),
+};
+
+static const struct mtk_clk_desc img_desc = {
+	.clks = img_clks,
+	.num_clks = ARRAY_SIZE(img_clks),
+};
+
+static const struct mtk_clk_desc img2_desc = {
+	.clks = img2_clks,
+	.num_clks = ARRAY_SIZE(img2_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8192_img[] = {
+	{
+		.compatible = "mediatek,mt8192-imgsys",
+		.data = &img_desc,
+	}, {
+		.compatible = "mediatek,mt8192-imgsys2",
+		.data = &img2_desc,
+	}, {
+		/* sentinel */
+	}
+};
+
+static struct platform_driver clk_mt8192_img_drv = {
+	.probe = mtk_clk_simple_probe,
+	.driver = {
+		.name = "clk-mt8192-img",
+		.of_match_table = of_match_clk_mt8192_img,
+	},
+};
+
+builtin_platform_driver(clk_mt8192_img_drv);