linux-kernel - [PATCH 17/22] clk: mediatek: Add MT8195 vencsys clock support

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Date:   Thu, 17 Jun 2021 06:47:38 +0800
From:   Chun-Jie Chen <chun-jie.chen@...iatek.com>
To:     Matthias Brugger <matthias.bgg@...il.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Nicolas Boichat <drinkcat@...omium.org>,
        Rob Herring <robh+dt@...nel.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>, <linux-clk@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <srv_heupstream@...iatek.com>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        Chun-Jie Chen <chun-jie.chen@...iatek.com>
Subject: [PATCH 17/22] clk: mediatek: Add MT8195 vencsys clock support

Add MT8195 vencsys clock providers

Signed-off-by: Chun-Jie Chen <chun-jie.chen@...iatek.com>
---
 drivers/clk/mediatek/Kconfig           |  6 +++
 drivers/clk/mediatek/Makefile          |  1 +
 drivers/clk/mediatek/clk-mt8195-venc.c | 71 ++++++++++++++++++++++++++
 3 files changed, 78 insertions(+)
 create mode 100644 drivers/clk/mediatek/clk-mt8195-venc.c

diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index 1e89c68f6c6c..3352686d98cf 100644
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -660,6 +660,12 @@ config COMMON_CLK_MT8195_VDOSYS1
 	help
 	  This driver supports MediaTek MT8195 vdosys1 clocks.
 
+config COMMON_CLK_MT8195_VENCSYS
+	bool "Clock driver for MediaTek MT8195 vencsys"
+	depends on COMMON_CLK_MT8195
+	help
+	  This driver supports MediaTek MT8195 vencsys clocks.
+
 config COMMON_CLK_MT8516
 	bool "Clock driver for MediaTek MT8516"
 	depends on ARCH_MEDIATEK || COMPILE_TEST
diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index 76c0fa837cb0..76a6b404e34b 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -93,5 +93,6 @@ obj-$(CONFIG_COMMON_CLK_MT8195_NNASYS) += clk-mt8195-nna.o
 obj-$(CONFIG_COMMON_CLK_MT8195_VDECSYS) += clk-mt8195-vdec.o
 obj-$(CONFIG_COMMON_CLK_MT8195_VDOSYS0) += clk-mt8195-vdo0.o
 obj-$(CONFIG_COMMON_CLK_MT8195_VDOSYS1) += clk-mt8195-vdo1.o
+obj-$(CONFIG_COMMON_CLK_MT8195_VENCSYS) += clk-mt8195-venc.o
 obj-$(CONFIG_COMMON_CLK_MT8516) += clk-mt8516.o
 obj-$(CONFIG_COMMON_CLK_MT8516_AUDSYS) += clk-mt8516-aud.o
diff --git a/drivers/clk/mediatek/clk-mt8195-venc.c b/drivers/clk/mediatek/clk-mt8195-venc.c
new file mode 100644
index 000000000000..410ca69d5759
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8195-venc.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright (c) 2021 MediaTek Inc.
+// Author: Chun-Jie Chen <chun-jie.chen@...iatek.com>
+
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+#include <dt-bindings/clock/mt8195-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_LARB, "venc_larb", "venc_sel", 0),
+	GATE_VENC(CLK_VENC_VENC, "venc_venc", "venc_sel", 4),
+	GATE_VENC(CLK_VENC_JPGENC, "venc_jpgenc", "venc_sel", 8),
+	GATE_VENC(CLK_VENC_JPGDEC, "venc_jpgdec", "venc_sel", 12),
+	GATE_VENC(CLK_VENC_JPGDEC_C1, "venc_jpgdec_c1", "venc_sel", 16),
+	GATE_VENC(CLK_VENC_GALS, "venc_gals", "venc_sel", 28),
+};
+
+static const struct mtk_gate venc_core1_clks[] = {
+	GATE_VENC(CLK_VENC_CORE1_LARB, "venc_core1_larb", "venc_sel", 0),
+	GATE_VENC(CLK_VENC_CORE1_VENC, "venc_core1_venc", "venc_sel", 4),
+	GATE_VENC(CLK_VENC_CORE1_JPGENC, "venc_core1_jpgenc", "venc_sel", 8),
+	GATE_VENC(CLK_VENC_CORE1_JPGDEC, "venc_core1_jpgdec", "venc_sel", 12),
+	GATE_VENC(CLK_VENC_CORE1_JPGDEC_C1, "venc_core1_jpgdec_c1", "venc_sel", 16),
+	GATE_VENC(CLK_VENC_CORE1_GALS, "venc_core1_gals", "venc_sel", 28),
+};
+
+static const struct mtk_clk_desc venc_desc = {
+	.clks = venc_clks,
+	.num_clks = ARRAY_SIZE(venc_clks),
+};
+
+static const struct mtk_clk_desc venc_core1_desc = {
+	.clks = venc_core1_clks,
+	.num_clks = ARRAY_SIZE(venc_core1_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8195_venc[] = {
+	{
+		.compatible = "mediatek,mt8195-vencsys",
+		.data = &venc_desc,
+	}, {
+		.compatible = "mediatek,mt8195-vencsys_core1",
+		.data = &venc_core1_desc,
+	}, {
+		/* sentinel */
+	}
+};
+
+static struct platform_driver clk_mt8195_venc_drv = {
+	.probe = mtk_clk_simple_probe,
+	.driver = {
+		.name = "clk-mt8195-venc",
+		.of_match_table = of_match_clk_mt8195_venc,
+	},
+};
+
+builtin_platform_driver(clk_mt8195_venc_drv);
-- 
2.18.0