[PATCH v6 10/19] clk: mediatek: Add MT8188 mfgcfg clock support

[Garmin.Chang]

Add MT8188 mfg clock controller which provides clock gate
control for GPU.

Signed-off-by: Garmin.Chang <Garmin.Chang at mediatek.com>
---
 drivers/clk/mediatek/Makefile         |  2 +-
 drivers/clk/mediatek/clk-mt8188-mfg.c | 47 +++++++++++++++++++++++++++
 2 files changed, 48 insertions(+), 1 deletion(-)
 create mode 100644 drivers/clk/mediatek/clk-mt8188-mfg.c

diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index e05fcc2769fa..dfe2c74c422c 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -94,7 +94,7 @@ obj-$(CONFIG_COMMON_CLK_MT8186) += clk-mt8186-mcu.o clk-mt8186-topckgen.o clk-mt
 obj-$(CONFIG_COMMON_CLK_MT8188) += clk-mt8188-apmixedsys.o clk-mt8188-topckgen.o \
 				   clk-mt8188-peri_ao.o clk-mt8188-infra_ao.o \
 				   clk-mt8188-cam.o clk-mt8188-ccu.o clk-mt8188-img.o \
-				   clk-mt8188-ipe.o
+				   clk-mt8188-ipe.o clk-mt8188-mfg.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
diff --git a/drivers/clk/mediatek/clk-mt8188-mfg.c b/drivers/clk/mediatek/clk-mt8188-mfg.c
new file mode 100644
index 000000000000..a9a54ca7bbd1
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8188-mfg.c
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright (c) 2022 MediaTek Inc.
+// Author: Garmin Chang <garmin.chang at mediatek.com>
+
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+#include <dt-bindings/clock/mediatek,mt8188-clk.h>
+
+#include "clk-gate.h"
+#include "clk-mtk.h"
+
+static const struct mtk_gate_regs mfgcfg_cg_regs = {
+	.set_ofs = 0x4,
+	.clr_ofs = 0x8,
+	.sta_ofs = 0x0,
+};
+
+#define GATE_MFG(_id, _name, _parent, _shift)				\
+	GATE_MTK_FLAGS(_id, _name, _parent, &mfgcfg_cg_regs, _shift,	\
+		       &mtk_clk_gate_ops_setclr, CLK_SET_RATE_PARENT)
+
+static const struct mtk_gate mfgcfg_clks[] = {
+	GATE_MFG(CLK_MFGCFG_BG3D, "mfgcfg_bg3d", "mfg_ck_fast_ref", 0),
+};
+
+static const struct mtk_clk_desc mfgcfg_desc = {
+	.clks = mfgcfg_clks,
+	.num_clks = ARRAY_SIZE(mfgcfg_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8188_mfgcfg[] = {
+	{ .compatible = "mediatek,mt8188-mfgcfg", .data = &mfgcfg_desc, },
+	{ /* sentinel */ }
+};
+
+static struct platform_driver clk_mt8188_mfgcfg_drv = {
+	.probe = mtk_clk_simple_probe,
+	.remove = mtk_clk_simple_remove,
+	.driver = {
+		.name = "clk-mt8188-mfgcfg",
+		.of_match_table = of_match_clk_mt8188_mfgcfg,
+	},
+};
+
+builtin_platform_driver(clk_mt8188_mfgcfg_drv);
+MODULE_LICENSE("GPL");
-- 
2.18.0