clk: mediatek: Add MT8188 imgsys clock support

Add MT8188 imgsys clock controllers which provide clock gate
control for image IP blocks.

Signed-off-by: Garmin.Chang <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Stephen Boyd <[email protected]>

Author: garminchang

drivers/clk/mediatek/Kconfig

@@ -699,6 +699,13 @@ config COMMON_CLK_MT8188_CAMSYS
 	help
 	  This driver supports MediaTek MT8188 camsys and camsys_raw clocks.
 
+config COMMON_CLK_MT8188_IMGSYS
+	tristate "Clock driver for MediaTek MT8188 imgsys"
+	depends on COMMON_CLK_MT8188_VPPSYS
+	default COMMON_CLK_MT8188_VPPSYS
+	help
+	  This driver supports MediaTek MT8188 imgsys and imgsys2 clocks.
+
 config COMMON_CLK_MT8192
 	tristate "Clock driver for MediaTek MT8192"
 	depends on ARM64 || COMPILE_TEST

drivers/clk/mediatek/Makefile

@@ -103,6 +103,7 @@ obj-$(CONFIG_COMMON_CLK_MT8186_WPESYS) += clk-mt8186-wpe.o
 obj-$(CONFIG_COMMON_CLK_MT8188) += clk-mt8188-apmixedsys.o clk-mt8188-topckgen.o \
 				   clk-mt8188-peri_ao.o clk-mt8188-infra_ao.o
 obj-$(CONFIG_COMMON_CLK_MT8188_CAMSYS) += clk-mt8188-cam.o clk-mt8188-ccu.o
+obj-$(CONFIG_COMMON_CLK_MT8188_IMGSYS) += clk-mt8188-img.o
 obj-$(CONFIG_COMMON_CLK_MT8192) += clk-mt8192-apmixedsys.o clk-mt8192.o
 obj-$(CONFIG_COMMON_CLK_MT8192_AUDSYS) += clk-mt8192-aud.o
 obj-$(CONFIG_COMMON_CLK_MT8192_CAMSYS) += clk-mt8192-cam.o

drivers/clk/mediatek/clk-mt8188-img.c

@@ -0,0 +1,112 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2022 MediaTek Inc.
+ * Author: Garmin Chang <[email protected]>
+ */
+
+#include <dt-bindings/clock/mediatek,mt8188-clk.h>
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+
+#include "clk-gate.h"
+#include "clk-mtk.h"
+
+static const struct mtk_gate_regs imgsys_cg_regs = {
+	.set_ofs = 0x4,
+	.clr_ofs = 0x8,
+	.sta_ofs = 0x0,
+};
+
+#define GATE_IMGSYS(_id, _name, _parent, _shift)			\
+	GATE_MTK(_id, _name, _parent, &imgsys_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
+
+static const struct mtk_gate imgsys_main_clks[] = {
+	GATE_IMGSYS(CLK_IMGSYS_MAIN_LARB9, "imgsys_main_larb9", "top_img", 0),
+	GATE_IMGSYS(CLK_IMGSYS_MAIN_TRAW0, "imgsys_main_traw0", "top_img", 1),
+	GATE_IMGSYS(CLK_IMGSYS_MAIN_TRAW1, "imgsys_main_traw1", "top_img", 2),
+	GATE_IMGSYS(CLK_IMGSYS_MAIN_VCORE_GALS, "imgsys_main_vcore_gals", "top_img", 3),
+	GATE_IMGSYS(CLK_IMGSYS_MAIN_DIP0, "imgsys_main_dip0", "top_img", 8),
+	GATE_IMGSYS(CLK_IMGSYS_MAIN_WPE0, "imgsys_main_wpe0", "top_img", 9),
+	GATE_IMGSYS(CLK_IMGSYS_MAIN_IPE, "imgsys_main_ipe", "top_img", 10),
+	GATE_IMGSYS(CLK_IMGSYS_MAIN_WPE1, "imgsys_main_wpe1", "top_img", 12),
+	GATE_IMGSYS(CLK_IMGSYS_MAIN_WPE2, "imgsys_main_wpe2", "top_img", 13),
+	GATE_IMGSYS(CLK_IMGSYS_MAIN_GALS, "imgsys_main_gals", "top_img", 31),
+};
+
+static const struct mtk_gate imgsys_wpe1_clks[] = {
+	GATE_IMGSYS(CLK_IMGSYS_WPE1_LARB11, "imgsys_wpe1_larb11", "top_img", 0),
+	GATE_IMGSYS(CLK_IMGSYS_WPE1, "imgsys_wpe1", "top_img", 1),
+};
+
+static const struct mtk_gate imgsys_wpe2_clks[] = {
+	GATE_IMGSYS(CLK_IMGSYS_WPE2_LARB11, "imgsys_wpe2_larb11", "top_img", 0),
+	GATE_IMGSYS(CLK_IMGSYS_WPE2, "imgsys_wpe2", "top_img", 1),
+};
+
+static const struct mtk_gate imgsys_wpe3_clks[] = {
+	GATE_IMGSYS(CLK_IMGSYS_WPE3_LARB11, "imgsys_wpe3_larb11", "top_img", 0),
+	GATE_IMGSYS(CLK_IMGSYS_WPE3, "imgsys_wpe3", "top_img", 1),
+};
+
+static const struct mtk_gate imgsys1_dip_top_clks[] = {
+	GATE_IMGSYS(CLK_IMGSYS1_DIP_TOP_LARB10, "imgsys1_dip_larb10", "top_img", 0),
+	GATE_IMGSYS(CLK_IMGSYS1_DIP_TOP_DIP_TOP, "imgsys1_dip_dip_top", "top_img", 1),
+};
+
+static const struct mtk_gate imgsys1_dip_nr_clks[] = {
+	GATE_IMGSYS(CLK_IMGSYS1_DIP_NR_LARB15, "imgsys1_dip_nr_larb15", "top_img", 0),
+	GATE_IMGSYS(CLK_IMGSYS1_DIP_NR_DIP_NR, "imgsys1_dip_nr_dip_nr", "top_img", 1),
+};
+
+static const struct mtk_clk_desc imgsys_main_desc = {
+	.clks = imgsys_main_clks,
+	.num_clks = ARRAY_SIZE(imgsys_main_clks),
+};
+
+static const struct mtk_clk_desc imgsys_wpe1_desc = {
+	.clks = imgsys_wpe1_clks,
+	.num_clks = ARRAY_SIZE(imgsys_wpe1_clks),
+};
+
+static const struct mtk_clk_desc imgsys_wpe2_desc = {
+	.clks = imgsys_wpe2_clks,
+	.num_clks = ARRAY_SIZE(imgsys_wpe2_clks),
+};
+
+static const struct mtk_clk_desc imgsys_wpe3_desc = {
+	.clks = imgsys_wpe3_clks,
+	.num_clks = ARRAY_SIZE(imgsys_wpe3_clks),
+};
+
+static const struct mtk_clk_desc imgsys1_dip_top_desc = {
+	.clks = imgsys1_dip_top_clks,
+	.num_clks = ARRAY_SIZE(imgsys1_dip_top_clks),
+};
+
+static const struct mtk_clk_desc imgsys1_dip_nr_desc = {
+	.clks = imgsys1_dip_nr_clks,
+	.num_clks = ARRAY_SIZE(imgsys1_dip_nr_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8188_imgsys_main[] = {
+	{ .compatible = "mediatek,mt8188-imgsys", .data = &imgsys_main_desc },
+	{ .compatible = "mediatek,mt8188-imgsys-wpe1", .data = &imgsys_wpe1_desc },
+	{ .compatible = "mediatek,mt8188-imgsys-wpe2", .data = &imgsys_wpe2_desc },
+	{ .compatible = "mediatek,mt8188-imgsys-wpe3", .data = &imgsys_wpe3_desc },
+	{ .compatible = "mediatek,mt8188-imgsys1-dip-top", .data = &imgsys1_dip_top_desc },
+	{ .compatible = "mediatek,mt8188-imgsys1-dip-nr", .data = &imgsys1_dip_nr_desc },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, of_match_clk_mt8188_imgsys_main);
+
+static struct platform_driver clk_mt8188_imgsys_main_drv = {
+	.probe = mtk_clk_simple_probe,
+	.remove = mtk_clk_simple_remove,
+	.driver = {
+		.name = "clk-mt8188-imgsys_main",
+		.of_match_table = of_match_clk_mt8188_imgsys_main,
+	},
+};
+
+module_platform_driver(clk_mt8188_imgsys_main_drv);
+MODULE_LICENSE("GPL");