clk: mediatek: Add MT8192 vdecsys clock support

Add MT8192 vdecsys and vdecsys soc clock providers

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/20210726105719.15793-21-chun-jie.chen@mediatek.com
Reviewed-by: Ikjoon Jang <ikjn@chromium.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/mediatek/Kconfig

@@ -568,6 +568,12 @@ config COMMON_CLK_MT8192_SCP_ADSP
 	help
 	  This driver supports MediaTek MT8192 scp_adsp clocks.
 
+config COMMON_CLK_MT8192_VDECSYS
+	bool "Clock driver for MediaTek MT8192 vdecsys"
+	depends on COMMON_CLK_MT8192
+	help
+	  This driver supports MediaTek MT8192 vdecsys and vdecsys_soc clocks.
+
 config COMMON_CLK_MT8516
 	bool "Clock driver for MediaTek MT8516"
 	depends on ARCH_MEDIATEK || COMPILE_TEST

drivers/clk/mediatek/Makefile

@@ -78,5 +78,6 @@ obj-$(CONFIG_COMMON_CLK_MT8192_MFGCFG) += clk-mt8192-mfg.o
 obj-$(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_MT8516) += clk-mt8516.o
 obj-$(CONFIG_COMMON_CLK_MT8516_AUDSYS) += clk-mt8516-aud.o

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

@@ -0,0 +1,94 @@
+// 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 vdec0_cg_regs = {
+	.set_ofs = 0x0,
+	.clr_ofs = 0x4,
+	.sta_ofs = 0x0,
+};
+
+static const struct mtk_gate_regs vdec1_cg_regs = {
+	.set_ofs = 0x200,
+	.clr_ofs = 0x204,
+	.sta_ofs = 0x200,
+};
+
+static const struct mtk_gate_regs vdec2_cg_regs = {
+	.set_ofs = 0x8,
+	.clr_ofs = 0xc,
+	.sta_ofs = 0x8,
+};
+
+#define GATE_VDEC0(_id, _name, _parent, _shift)	\
+	GATE_MTK(_id, _name, _parent, &vdec0_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
+
+#define GATE_VDEC1(_id, _name, _parent, _shift)	\
+	GATE_MTK(_id, _name, _parent, &vdec1_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
+
+#define GATE_VDEC2(_id, _name, _parent, _shift)	\
+	GATE_MTK(_id, _name, _parent, &vdec2_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
+
+static const struct mtk_gate vdec_clks[] = {
+	/* VDEC0 */
+	GATE_VDEC0(CLK_VDEC_VDEC, "vdec_vdec", "vdec_sel", 0),
+	GATE_VDEC0(CLK_VDEC_ACTIVE, "vdec_active", "vdec_sel", 4),
+	/* VDEC1 */
+	GATE_VDEC1(CLK_VDEC_LAT, "vdec_lat", "vdec_sel", 0),
+	GATE_VDEC1(CLK_VDEC_LAT_ACTIVE, "vdec_lat_active", "vdec_sel", 4),
+	/* VDEC2 */
+	GATE_VDEC2(CLK_VDEC_LARB1, "vdec_larb1", "vdec_sel", 0),
+};
+
+static const struct mtk_gate vdec_soc_clks[] = {
+	/* VDEC_SOC0 */
+	GATE_VDEC0(CLK_VDEC_SOC_VDEC, "vdec_soc_vdec", "vdec_sel", 0),
+	GATE_VDEC0(CLK_VDEC_SOC_VDEC_ACTIVE, "vdec_soc_vdec_active", "vdec_sel", 4),
+	/* VDEC_SOC1 */
+	GATE_VDEC1(CLK_VDEC_SOC_LAT, "vdec_soc_lat", "vdec_sel", 0),
+	GATE_VDEC1(CLK_VDEC_SOC_LAT_ACTIVE, "vdec_soc_lat_active", "vdec_sel", 4),
+	/* VDEC_SOC2 */
+	GATE_VDEC2(CLK_VDEC_SOC_LARB1, "vdec_soc_larb1", "vdec_sel", 0),
+};
+
+static const struct mtk_clk_desc vdec_desc = {
+	.clks = vdec_clks,
+	.num_clks = ARRAY_SIZE(vdec_clks),
+};
+
+static const struct mtk_clk_desc vdec_soc_desc = {
+	.clks = vdec_soc_clks,
+	.num_clks = ARRAY_SIZE(vdec_soc_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8192_vdec[] = {
+	{
+		.compatible = "mediatek,mt8192-vdecsys",
+		.data = &vdec_desc,
+	}, {
+		.compatible = "mediatek,mt8192-vdecsys_soc",
+		.data = &vdec_soc_desc,
+	}, {
+		/* sentinel */
+	}
+};
+
+static struct platform_driver clk_mt8192_vdec_drv = {
+	.probe = mtk_clk_simple_probe,
+	.driver = {
+		.name = "clk-mt8192-vdec",
+		.of_match_table = of_match_clk_mt8192_vdec,
+	},
+};
+
+builtin_platform_driver(clk_mt8192_vdec_drv);