linux-kernel - [PATCH 06/22] clk: mediatek: Add MT8195 audio src clock support

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Message-ID: <20210616224743.5109-7-chun-jie.chen@mediatek.com>
Date:   Thu, 17 Jun 2021 06:47:27 +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 06/22] clk: mediatek: Add MT8195 audio src clock support

Add MT8195 audio src source clock provider

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-aud_src.c | 60 +++++++++++++++++++++++
 3 files changed, 67 insertions(+)
 create mode 100644 drivers/clk/mediatek/clk-mt8195-aud_src.c

diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index e2bae9d490a4..62dd02bc2755 100644
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -594,6 +594,12 @@ config COMMON_CLK_MT8195_AUDSYS
 	help
 	  This driver supports MediaTek MT8195 audsys clocks.
 
+config COMMON_CLK_MT8195_AUDSYS_SRC
+	bool "Clock driver for MediaTek MT8195 audsys_src"
+	depends on COMMON_CLK_MT8195
+	help
+	  This driver supports MediaTek MT8195 audsys_src 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 f27c04314186..52a5d3f49ff0 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -82,5 +82,6 @@ obj-$(CONFIG_COMMON_CLK_MT8192_VDECSYS) += clk-mt8192-vdec.o
 obj-$(CONFIG_COMMON_CLK_MT8192_VENCSYS) += clk-mt8192-venc.o
 obj-$(CONFIG_COMMON_CLK_MT8195) += clk-mt8195.o
 obj-$(CONFIG_COMMON_CLK_MT8195_AUDSYS) += clk-mt8195-aud.o
+obj-$(CONFIG_COMMON_CLK_MT8195_AUDSYS_SRC) += clk-mt8195-aud_src.o
 obj-$(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-aud_src.c b/drivers/clk/mediatek/clk-mt8195-aud_src.c
new file mode 100644
index 000000000000..7cabe0d68825
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8195-aud_src.c
@@ -0,0 +1,60 @@
+// 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 aud_src_cg_regs = {
+	.set_ofs = 0x1004,
+	.clr_ofs = 0x1004,
+	.sta_ofs = 0x1004,
+};
+
+#define GATE_AUD_SRC(_id, _name, _parent, _shift)			\
+	GATE_MTK(_id, _name, _parent, &aud_src_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr)
+
+static const struct mtk_gate aud_src_clks[] = {
+	GATE_AUD_SRC(CLK_AUD_SRC_ASRC0, "aud_src_asrc0", "asm_h_sel", 0),
+	GATE_AUD_SRC(CLK_AUD_SRC_ASRC1, "aud_src_asrc1", "asm_h_sel", 1),
+	GATE_AUD_SRC(CLK_AUD_SRC_ASRC2, "aud_src_asrc2", "asm_h_sel", 2),
+	GATE_AUD_SRC(CLK_AUD_SRC_ASRC3, "aud_src_asrc3", "asm_h_sel", 3),
+	GATE_AUD_SRC(CLK_AUD_SRC_ASRC4, "aud_src_asrc4", "asm_h_sel", 4),
+	GATE_AUD_SRC(CLK_AUD_SRC_ASRC5, "aud_src_asrc5", "asm_h_sel", 5),
+	GATE_AUD_SRC(CLK_AUD_SRC_ASRC6, "aud_src_asrc6", "asm_h_sel", 6),
+	GATE_AUD_SRC(CLK_AUD_SRC_ASRC7, "aud_src_asrc7", "asm_h_sel", 7),
+	GATE_AUD_SRC(CLK_AUD_SRC_ASRC8, "aud_src_asrc8", "asm_h_sel", 8),
+	GATE_AUD_SRC(CLK_AUD_SRC_ASRC9, "aud_src_asrc9", "asm_h_sel", 9),
+	GATE_AUD_SRC(CLK_AUD_SRC_ASRC10, "aud_src_asrc10", "asm_h_sel", 10),
+	GATE_AUD_SRC(CLK_AUD_SRC_ASRC11, "aud_src_asrc11", "asm_h_sel", 11),
+};
+
+static const struct mtk_clk_desc aud_src_desc = {
+	.clks = aud_src_clks,
+	.num_clks = ARRAY_SIZE(aud_src_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8195_aud_src[] = {
+	{
+		.compatible = "mediatek,mt8195-audsys_src",
+		.data = &aud_src_desc,
+	}, {
+		/* sentinel */
+	}
+};
+
+static struct platform_driver clk_mt8195_aud_src_drv = {
+	.probe = mtk_clk_simple_probe,
+	.driver = {
+		.name = "clk-mt8195-aud_src",
+		.of_match_table = of_match_clk_mt8195_aud_src,
+	},
+};
+
+builtin_platform_driver(clk_mt8195_aud_src_drv);
-- 
2.18.0