clk: mediatek: Add MT8192 vencsys clock support

Add MT8192 vencsys clock provider

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Signed-off-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
Link: https://lore.kernel.org/r/20210726105719.15793-22-chun-jie.chen@mediatek.com
Reviewed-by: Ikjoon Jang <ikjn@chromium.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Author: Chun-Jie Chen

drivers/clk/mediatek/Kconfig

@@ -574,6 +574,12 @@ config COMMON_CLK_MT8192_VDECSYS
 	help
 	  This driver supports MediaTek MT8192 vdecsys and vdecsys_soc clocks.
 
+config COMMON_CLK_MT8192_VENCSYS
+	bool "Clock driver for MediaTek MT8192 vencsys"
+	depends on COMMON_CLK_MT8192
+	help
+	  This driver supports MediaTek MT8192 vencsys clocks.
+
 config COMMON_CLK_MT8516
 	bool "Clock driver for MediaTek MT8516"
 	depends on ARCH_MEDIATEK || COMPILE_TEST

drivers/clk/mediatek/Makefile

@@ -79,5 +79,6 @@ obj-$(CONFIG_COMMON_CLK_MT8192_MMSYS) += clk-mt8192-mm.o
 obj-$(CONFIG_COMMON_CLK_MT8192_MSDC) += clk-mt8192-msdc.o
 obj-$(CONFIG_COMMON_CLK_MT8192_SCP_ADSP) += clk-mt8192-scp_adsp.o
 obj-$(CONFIG_COMMON_CLK_MT8192_VDECSYS) += clk-mt8192-vdec.o
+obj-$(CONFIG_COMMON_CLK_MT8192_VENCSYS) += clk-mt8192-venc.o
 obj-$(CONFIG_COMMON_CLK_MT8516) += clk-mt8516.o
 obj-$(CONFIG_COMMON_CLK_MT8516_AUDSYS) += clk-mt8516-aud.o

drivers/clk/mediatek/clk-mt8192-venc.c

@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright (c) 2021 MediaTek Inc.
+// Author: Chun-Jie Chen <chun-jie.chen@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 venc_cg_regs = {
+	.set_ofs = 0x4,
+	.clr_ofs = 0x8,
+	.sta_ofs = 0x0,
+};
+
+#define GATE_VENC(_id, _name, _parent, _shift)	\
+	GATE_MTK(_id, _name, _parent, &venc_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
+
+static const struct mtk_gate venc_clks[] = {
+	GATE_VENC(CLK_VENC_SET0_LARB, "venc_set0_larb", "venc_sel", 0),
+	GATE_VENC(CLK_VENC_SET1_VENC, "venc_set1_venc", "venc_sel", 4),
+	GATE_VENC(CLK_VENC_SET2_JPGENC, "venc_set2_jpgenc", "venc_sel", 8),
+	GATE_VENC(CLK_VENC_SET5_GALS, "venc_set5_gals", "venc_sel", 28),
+};
+
+static const struct mtk_clk_desc venc_desc = {
+	.clks = venc_clks,
+	.num_clks = ARRAY_SIZE(venc_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8192_venc[] = {
+	{
+		.compatible = "mediatek,mt8192-vencsys",
+		.data = &venc_desc,
+	}, {
+		/* sentinel */
+	}
+};
+
+static struct platform_driver clk_mt8192_venc_drv = {
+	.probe = mtk_clk_simple_probe,
+	.driver = {
+		.name = "clk-mt8192-venc",
+		.of_match_table = of_match_clk_mt8192_venc,
+	},
+};
+
+builtin_platform_driver(clk_mt8192_venc_drv);