[PATCH v4 09/19] clk: mediatek: Add MT8188 ipesys clock support

[Garmin.Chang]

Add MT8188 ipesys clock controller which provides clock gate
control for Image Process Engine.

Signed-off-by: Garmin.Chang <Garmin.Chang at mediatek.com>
---
 drivers/clk/mediatek/Makefile         |  3 +-
 drivers/clk/mediatek/clk-mt8188-ipe.c | 50 +++++++++++++++++++++++++++
 2 files changed, 52 insertions(+), 1 deletion(-)
 create mode 100644 drivers/clk/mediatek/clk-mt8188-ipe.c

diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index be835d5e179d..4a599122f761 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -85,7 +85,8 @@ obj-$(CONFIG_COMMON_CLK_MT8186) += clk-mt8186-mcu.o clk-mt8186-topckgen.o clk-mt
 				   clk-mt8186-cam.o clk-mt8186-mdp.o clk-mt8186-ipe.o
 obj-$(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-cam.o clk-mt8188-ccu.o clk-mt8188-img.o \
+				   clk-mt8188-ipe.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-ipe.c b/drivers/clk/mediatek/clk-mt8188-ipe.c
new file mode 100644
index 000000000000..c18afe0d61b3
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8188-ipe.c
@@ -0,0 +1,50 @@
+// 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 ipe_cg_regs = {
+	.set_ofs = 0x4,
+	.clr_ofs = 0x8,
+	.sta_ofs = 0x0,
+};
+
+#define GATE_IPE(_id, _name, _parent, _shift)			\
+	GATE_MTK(_id, _name, _parent, &ipe_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
+
+static const struct mtk_gate ipe_clks[] = {
+	GATE_IPE(CLK_IPE_DPE, "ipe_dpe", "top_ipe", 0),
+	GATE_IPE(CLK_IPE_FDVT, "ipe_fdvt", "top_ipe", 1),
+	GATE_IPE(CLK_IPE_ME, "ipe_me", "top_ipe", 2),
+	GATE_IPE(CLK_IPESYS_TOP, "ipesys_top", "top_ipe", 3),
+	GATE_IPE(CLK_IPE_SMI_LARB12, "ipe_smi_larb12", "top_ipe", 4),
+};
+
+static const struct mtk_clk_desc ipe_desc = {
+	.clks = ipe_clks,
+	.num_clks = ARRAY_SIZE(ipe_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8188_ipe[] = {
+	{ .compatible = "mediatek,mt8188-ipesys", .data = &ipe_desc, },
+	{ /* sentinel */ }
+};
+
+static struct platform_driver clk_mt8188_ipe_drv = {
+	.probe = mtk_clk_simple_probe,
+	.remove = mtk_clk_simple_remove,
+	.driver = {
+		.name = "clk-mt8188-ipe",
+		.of_match_table = of_match_clk_mt8188_ipe,
+	},
+};
+
+builtin_platform_driver(clk_mt8188_ipe_drv);
+MODULE_LICENSE("GPL");
-- 
2.18.0