[v12 10/20] clk: mediatek: Add MT8192 camsys clock support

[Chun-Jie Chen]

Add MT8192 camsys and camsys raw clock providers

Signed-off-by: Weiyi Lu <weiyi.lu at mediatek.com>
Signed-off-by: Chun-Jie Chen <chun-jie.chen at mediatek.com>
---
 drivers/clk/mediatek/Kconfig          |   6 ++
 drivers/clk/mediatek/Makefile         |   1 +
 drivers/clk/mediatek/clk-mt8192-cam.c | 107 ++++++++++++++++++++++++++
 3 files changed, 114 insertions(+)
 create mode 100644 drivers/clk/mediatek/clk-mt8192-cam.c

diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index 909f423d7c4c..a39a4c201c9e 100644
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -514,6 +514,12 @@ config COMMON_CLK_MT8192_AUDSYS
 	help
 	  This driver supports MediaTek MT8192 audsys clocks.
 
+config COMMON_CLK_MT8192_CAMSYS
+	bool "Clock driver for MediaTek MT8192 camsys"
+	depends on COMMON_CLK_MT8192
+	help
+	  This driver supports MediaTek MT8192 camsys and camsys_raw 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 1d0f2e8e9661..94bf7a03fd88 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -69,5 +69,6 @@ obj-$(CONFIG_COMMON_CLK_MT8183_VDECSYS) += clk-mt8183-vdec.o
 obj-$(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_MT8516) += clk-mt8516.o
 obj-$(CONFIG_COMMON_CLK_MT8516_AUDSYS) += clk-mt8516-aud.o
diff --git a/drivers/clk/mediatek/clk-mt8192-cam.c b/drivers/clk/mediatek/clk-mt8192-cam.c
new file mode 100644
index 000000000000..fc74cd80b4b0
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8192-cam.c
@@ -0,0 +1,107 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright (c) 2021 MediaTek Inc.
+// Author: Chun-Jie Chen <chun-jie.chen at mediatek.com>
+
+#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 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_clks[] = {
+	GATE_CAM(CLK_CAM_LARB13, "cam_larb13", "cam_sel", 0),
+	GATE_CAM(CLK_CAM_DFP_VAD, "cam_dfp_vad", "cam_sel", 1),
+	GATE_CAM(CLK_CAM_LARB14, "cam_larb14", "cam_sel", 2),
+	GATE_CAM(CLK_CAM_CAM, "cam_cam", "cam_sel", 6),
+	GATE_CAM(CLK_CAM_CAMTG, "cam_camtg", "cam_sel", 7),
+	GATE_CAM(CLK_CAM_SENINF, "cam_seninf", "cam_sel", 8),
+	GATE_CAM(CLK_CAM_CAMSV0, "cam_camsv0", "cam_sel", 9),
+	GATE_CAM(CLK_CAM_CAMSV1, "cam_camsv1", "cam_sel", 10),
+	GATE_CAM(CLK_CAM_CAMSV2, "cam_camsv2", "cam_sel", 11),
+	GATE_CAM(CLK_CAM_CAMSV3, "cam_camsv3", "cam_sel", 12),
+	GATE_CAM(CLK_CAM_CCU0, "cam_ccu0", "cam_sel", 13),
+	GATE_CAM(CLK_CAM_CCU1, "cam_ccu1", "cam_sel", 14),
+	GATE_CAM(CLK_CAM_MRAW0, "cam_mraw0", "cam_sel", 15),
+	GATE_CAM(CLK_CAM_FAKE_ENG, "cam_fake_eng", "cam_sel", 17),
+	GATE_CAM(CLK_CAM_CCU_GALS, "cam_ccu_gals", "cam_sel", 18),
+	GATE_CAM(CLK_CAM_CAM2MM_GALS, "cam2mm_gals", "cam_sel", 19),
+};
+
+static const struct mtk_gate cam_rawa_clks[] = {
+	GATE_CAM(CLK_CAM_RAWA_LARBX, "cam_rawa_larbx", "cam_sel", 0),
+	GATE_CAM(CLK_CAM_RAWA_CAM, "cam_rawa_cam", "cam_sel", 1),
+	GATE_CAM(CLK_CAM_RAWA_CAMTG, "cam_rawa_camtg", "cam_sel", 2),
+};
+
+static const struct mtk_gate cam_rawb_clks[] = {
+	GATE_CAM(CLK_CAM_RAWB_LARBX, "cam_rawb_larbx", "cam_sel", 0),
+	GATE_CAM(CLK_CAM_RAWB_CAM, "cam_rawb_cam", "cam_sel", 1),
+	GATE_CAM(CLK_CAM_RAWB_CAMTG, "cam_rawb_camtg", "cam_sel", 2),
+};
+
+static const struct mtk_gate cam_rawc_clks[] = {
+	GATE_CAM(CLK_CAM_RAWC_LARBX, "cam_rawc_larbx", "cam_sel", 0),
+	GATE_CAM(CLK_CAM_RAWC_CAM, "cam_rawc_cam", "cam_sel", 1),
+	GATE_CAM(CLK_CAM_RAWC_CAMTG, "cam_rawc_camtg", "cam_sel", 2),
+};
+
+static const struct mtk_clk_desc cam_desc = {
+	.clks = cam_clks,
+	.num_clks = ARRAY_SIZE(cam_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_rawc_desc = {
+	.clks = cam_rawc_clks,
+	.num_clks = ARRAY_SIZE(cam_rawc_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8192_cam[] = {
+	{
+		.compatible = "mediatek,mt8192-camsys",
+		.data = &cam_desc,
+	}, {
+		.compatible = "mediatek,mt8192-camsys_rawa",
+		.data = &cam_rawa_desc,
+	}, {
+		.compatible = "mediatek,mt8192-camsys_rawb",
+		.data = &cam_rawb_desc,
+	}, {
+		.compatible = "mediatek,mt8192-camsys_rawc",
+		.data = &cam_rawc_desc,
+	}, {
+		/* sentinel */
+	}
+};
+
+static struct platform_driver clk_mt8192_cam_drv = {
+	.probe = mtk_clk_simple_probe,
+	.driver = {
+		.name = "clk-mt8192-cam",
+		.of_match_table = of_match_clk_mt8192_cam,
+	},
+};
+
+builtin_platform_driver(clk_mt8192_cam_drv);
-- 
2.18.0