[PATCH 14/18] clk: mediatek: Add MT8188 vencsys clock support

[Garmin.Chang]

Add MT8188 vencsys clock controllers which provide clock gate
control for video encoder.

Signed-off-by: Garmin.Chang <Garmin.Chang at mediatek.com>
---
 drivers/clk/mediatek/Makefile          |  2 +-
 drivers/clk/mediatek/clk-mt8188-venc.c | 56 ++++++++++++++++++++++++++
 2 files changed, 57 insertions(+), 1 deletion(-)
 create mode 100644 drivers/clk/mediatek/clk-mt8188-venc.c

diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index d85ae4dd7670..691bacf55759 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -80,7 +80,7 @@ obj-$(CONFIG_COMMON_CLK_MT8188) += clk-mt8188-apmixedsys.o clk-mt8188-topckgen.o
 				   clk-mt8188-peri_ao.o clk-mt8188-infra_ao.o \
 				   clk-mt8188-cam.o clk-mt8188-ccu.o clk-mt8188-img.o \
 				   clk-mt8188-ipe.o clk-mt8188-mfg.o clk-mt8188-vdec.o \
-				   clk-mt8188-vdo0.o clk-mt8188-vdo1.o
+				   clk-mt8188-vdo0.o clk-mt8188-vdo1.o clk-mt8188-venc.o
 obj-$(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
diff --git a/drivers/clk/mediatek/clk-mt8188-venc.c b/drivers/clk/mediatek/clk-mt8188-venc.c
new file mode 100644
index 000000000000..a4dc61945881
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8188-venc.c
@@ -0,0 +1,56 @@
+// 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/mt8188-clk.h>
+
+#include "clk-gate.h"
+#include "clk-mtk.h"
+
+static const struct mtk_gate_regs ven1_cg_regs = {
+	.set_ofs = 0x4,
+	.clr_ofs = 0x8,
+	.sta_ofs = 0x0,
+};
+
+#define GATE_VEN1(_id, _name, _parent, _shift)			\
+	GATE_MTK(_id, _name, _parent, &ven1_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
+
+static const struct mtk_gate ven1_clks[] = {
+	GATE_VEN1(CLK_VEN1_CKE0_LARB, "ven1_cke0_larb", "top_venc", 0),
+	GATE_VEN1(CLK_VEN1_CKE1_VENC, "ven1_cke1_venc", "top_venc", 4),
+	GATE_VEN1(CLK_VEN1_CKE2_JPGENC, "ven1_cke2_jpgenc", "top_venc", 8),
+	GATE_VEN1(CLK_VEN1_CKE3_JPGDEC, "ven1_cke3_jpgdec", "top_venc", 12),
+	GATE_VEN1(CLK_VEN1_CKE4_JPGDEC_C1, "ven1_cke4_jpgdec_c1", "top_venc", 16),
+	GATE_VEN1(CLK_VEN1_CKE5_GALS, "ven1_cke5_gals", "top_venc", 28),
+	GATE_VEN1(CLK_VEN1_CKE6_GALS_SRAM, "ven1_cke6_gals_sram", "top_venc", 31),
+};
+
+static const struct mtk_clk_desc ven1_desc = {
+	.clks = ven1_clks,
+	.num_clks = ARRAY_SIZE(ven1_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8188_ven1[] = {
+	{
+		.compatible = "mediatek,mt8188-vencsys",
+		.data = &ven1_desc,
+	}, {
+		/* sentinel */
+	}
+};
+
+static struct platform_driver clk_mt8188_ven1_drv = {
+	.probe = mtk_clk_simple_probe,
+	.remove = mtk_clk_simple_remove,
+	.driver = {
+		.name = "clk-mt8188-ven1",
+		.of_match_table = of_match_clk_mt8188_ven1,
+	},
+};
+
+builtin_platform_driver(clk_mt8188_ven1_drv);
+MODULE_LICENSE("GPL");
-- 
2.18.0