clk: mediatek: Add MT8188 camsys clock support

Add MT8188 camsys clock controllers which provide clock gate
control for camera IP blocks.
Signed-off-by: Garmin.Chang <Garmin.Chang@mediatek.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230331123621.16167-7-Garmin.Chang@mediatek.comSigned-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/mediatek/Kconfig

@@ -692,6 +692,13 @@ config COMMON_CLK_MT8188
 	help
           This driver supports MediaTek MT8188 clocks.
 
+config COMMON_CLK_MT8188_CAMSYS
+	tristate "Clock driver for MediaTek MT8188 camsys"
+	depends on COMMON_CLK_MT8188_VPPSYS
+	default COMMON_CLK_MT8188_VPPSYS
+	help
+	  This driver supports MediaTek MT8188 camsys and camsys_raw clocks.
+
 config COMMON_CLK_MT8192
 	tristate "Clock driver for MediaTek MT8192"
 	depends on ARM64 || COMPILE_TEST

drivers/clk/mediatek/Makefile

@@ -102,6 +102,7 @@ obj-$(CONFIG_COMMON_CLK_MT8186_VENCSYS) += clk-mt8186-venc.o
 obj-$(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
 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-cam.c

+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2022 MediaTek Inc.
+ * Author: Garmin Chang <garmin.chang@mediatek.com>
+ */
+
+#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 cam_cg_regs = {
+	.set_ofs = 0x4,
+	.clr_ofs = 0x8,
+	.sta_ofs = 0x0,
+};
+
+#define GATE_CAM(_id, _name, _parent, _shift)			\
+	GATE_MTK(_id, _name, _parent, &cam_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
+
+static const struct mtk_gate cam_main_clks[] = {
+	GATE_CAM(CLK_CAM_MAIN_LARB13, "cam_main_larb13", "top_cam", 0),
+	GATE_CAM(CLK_CAM_MAIN_LARB14, "cam_main_larb14", "top_cam", 1),
+	GATE_CAM(CLK_CAM_MAIN_CAM, "cam_main_cam", "top_cam", 2),
+	GATE_CAM(CLK_CAM_MAIN_CAM_SUBA, "cam_main_cam_suba", "top_cam", 3),
+	GATE_CAM(CLK_CAM_MAIN_CAM_SUBB, "cam_main_cam_subb", "top_cam", 4),
+	GATE_CAM(CLK_CAM_MAIN_CAMTG, "cam_main_camtg", "top_cam", 7),
+	GATE_CAM(CLK_CAM_MAIN_SENINF, "cam_main_seninf", "top_cam", 8),
+	GATE_CAM(CLK_CAM_MAIN_GCAMSVA, "cam_main_gcamsva", "top_cam", 9),
+	GATE_CAM(CLK_CAM_MAIN_GCAMSVB, "cam_main_gcamsvb", "top_cam", 10),
+	GATE_CAM(CLK_CAM_MAIN_GCAMSVC, "cam_main_gcamsvc", "top_cam", 11),
+	GATE_CAM(CLK_CAM_MAIN_GCAMSVD, "cam_main_gcamsvd", "top_cam", 12),
+	GATE_CAM(CLK_CAM_MAIN_GCAMSVE, "cam_main_gcamsve", "top_cam", 13),
+	GATE_CAM(CLK_CAM_MAIN_GCAMSVF, "cam_main_gcamsvf", "top_cam", 14),
+	GATE_CAM(CLK_CAM_MAIN_GCAMSVG, "cam_main_gcamsvg", "top_cam", 15),
+	GATE_CAM(CLK_CAM_MAIN_GCAMSVH, "cam_main_gcamsvh", "top_cam", 16),
+	GATE_CAM(CLK_CAM_MAIN_GCAMSVI, "cam_main_gcamsvi", "top_cam", 17),
+	GATE_CAM(CLK_CAM_MAIN_GCAMSVJ, "cam_main_gcamsvj", "top_cam", 18),
+	GATE_CAM(CLK_CAM_MAIN_CAMSV_TOP, "cam_main_camsv", "top_cam", 19),
+	GATE_CAM(CLK_CAM_MAIN_CAMSV_CQ_A, "cam_main_camsv_cq_a", "top_cam", 20),
+	GATE_CAM(CLK_CAM_MAIN_CAMSV_CQ_B, "cam_main_camsv_cq_b", "top_cam", 21),
+	GATE_CAM(CLK_CAM_MAIN_CAMSV_CQ_C, "cam_main_camsv_cq_c", "top_cam", 22),
+	GATE_CAM(CLK_CAM_MAIN_FAKE_ENG, "cam_main_fake_eng", "top_cam", 28),
+	GATE_CAM(CLK_CAM_MAIN_CAM2MM0_GALS, "cam_main_cam2mm0_gals", "top_cam", 29),
+	GATE_CAM(CLK_CAM_MAIN_CAM2MM1_GALS, "cam_main_cam2mm1_gals", "top_cam", 30),
+	GATE_CAM(CLK_CAM_MAIN_CAM2SYS_GALS, "cam_main_cam2sys_gals", "top_cam", 31),
+};
+
+static const struct mtk_gate cam_rawa_clks[] = {
+	GATE_CAM(CLK_CAM_RAWA_LARBX, "cam_rawa_larbx", "top_cam", 0),
+	GATE_CAM(CLK_CAM_RAWA_CAM, "cam_rawa_cam", "top_cam", 1),
+	GATE_CAM(CLK_CAM_RAWA_CAMTG, "cam_rawa_camtg", "top_cam", 2),
+};
+
+static const struct mtk_gate cam_rawb_clks[] = {
+	GATE_CAM(CLK_CAM_RAWB_LARBX, "cam_rawb_larbx", "top_cam", 0),
+	GATE_CAM(CLK_CAM_RAWB_CAM, "cam_rawb_cam", "top_cam", 1),
+	GATE_CAM(CLK_CAM_RAWB_CAMTG, "cam_rawb_camtg", "top_cam", 2),
+};
+
+static const struct mtk_gate cam_yuva_clks[] = {
+	GATE_CAM(CLK_CAM_YUVA_LARBX, "cam_yuva_larbx", "top_cam", 0),
+	GATE_CAM(CLK_CAM_YUVA_CAM, "cam_yuva_cam", "top_cam", 1),
+	GATE_CAM(CLK_CAM_YUVA_CAMTG, "cam_yuva_camtg", "top_cam", 2),
+};
+
+static const struct mtk_gate cam_yuvb_clks[] = {
+	GATE_CAM(CLK_CAM_YUVB_LARBX, "cam_yuvb_larbx", "top_cam", 0),
+	GATE_CAM(CLK_CAM_YUVB_CAM, "cam_yuvb_cam", "top_cam", 1),
+	GATE_CAM(CLK_CAM_YUVB_CAMTG, "cam_yuvb_camtg", "top_cam", 2),
+};
+
+static const struct mtk_clk_desc cam_main_desc = {
+	.clks = cam_main_clks,
+	.num_clks = ARRAY_SIZE(cam_main_clks),
+};
+
+static const struct mtk_clk_desc cam_rawa_desc = {
+	.clks = cam_rawa_clks,
+	.num_clks = ARRAY_SIZE(cam_rawa_clks),
+};
+
+static const struct mtk_clk_desc cam_rawb_desc = {
+	.clks = cam_rawb_clks,
+	.num_clks = ARRAY_SIZE(cam_rawb_clks),
+};
+
+static const struct mtk_clk_desc cam_yuva_desc = {
+	.clks = cam_yuva_clks,
+	.num_clks = ARRAY_SIZE(cam_yuva_clks),
+};
+
+static const struct mtk_clk_desc cam_yuvb_desc = {
+	.clks = cam_yuvb_clks,
+	.num_clks = ARRAY_SIZE(cam_yuvb_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8188_cam[] = {
+	{ .compatible = "mediatek,mt8188-camsys", .data = &cam_main_desc },
+	{ .compatible = "mediatek,mt8188-camsys-rawa", .data = &cam_rawa_desc },
+	{ .compatible = "mediatek,mt8188-camsys-rawb", .data = &cam_rawb_desc },
+	{ .compatible = "mediatek,mt8188-camsys-yuva", .data = &cam_yuva_desc },
+	{ .compatible = "mediatek,mt8188-camsys-yuvb", .data = &cam_yuvb_desc },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, of_match_clk_mt8188_cam);
+
+static struct platform_driver clk_mt8188_cam_drv = {
+	.probe = mtk_clk_simple_probe,
+	.remove = mtk_clk_simple_remove,
+	.driver = {
+		.name = "clk-mt8188-cam",
+		.of_match_table = of_match_clk_mt8188_cam,
+	},
+};
+
+module_platform_driver(clk_mt8188_cam_drv);
+MODULE_LICENSE("GPL");