linux-kernel - [v12 15/20] clk: mediatek: Add MT8192 mfgcfg clock support

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Date:   Mon, 5 Jul 2021 11:38:19 +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>,
        Weiyi Lu <weiyi.lu@...iatek.com>,
        Chun-Jie Chen <chun-jie.chen@...iatek.com>
Subject: [v12 15/20] clk: mediatek: Add MT8192 mfgcfg clock support

Add MT8192 mfgcfg clock provider

Signed-off-by: Weiyi Lu <weiyi.lu@...iatek.com>
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-mt8192-mfg.c | 50 +++++++++++++++++++++++++++
 3 files changed, 57 insertions(+)
 create mode 100644 drivers/clk/mediatek/clk-mt8192-mfg.c

diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index 59104b8cd7dc..e212f3416855 100644
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -544,6 +544,12 @@ config COMMON_CLK_MT8192_MDPSYS
 	help
 	  This driver supports MediaTek MT8192 mdpsys clocks.
 
+config COMMON_CLK_MT8192_MFGCFG
+	bool "Clock driver for MediaTek MT8192 mfgcfg"
+	depends on COMMON_CLK_MT8192
+	help
+	  This driver supports MediaTek MT8192 mfgcfg 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 7b258cb1f914..024841a79f1c 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -74,5 +74,6 @@ obj-$(CONFIG_COMMON_CLK_MT8192_IMGSYS) += clk-mt8192-img.o
 obj-$(CONFIG_COMMON_CLK_MT8192_IMP_IIC_WRAP) += clk-mt8192-imp_iic_wrap.o
 obj-$(CONFIG_COMMON_CLK_MT8192_IPESYS) += clk-mt8192-ipe.o
 obj-$(CONFIG_COMMON_CLK_MT8192_MDPSYS) += clk-mt8192-mdp.o
+obj-$(CONFIG_COMMON_CLK_MT8192_MFGCFG) += clk-mt8192-mfg.o
 obj-$(CONFIG_COMMON_CLK_MT8516) += clk-mt8516.o
 obj-$(CONFIG_COMMON_CLK_MT8516_AUDSYS) += clk-mt8516-aud.o
diff --git a/drivers/clk/mediatek/clk-mt8192-mfg.c b/drivers/clk/mediatek/clk-mt8192-mfg.c
new file mode 100644
index 000000000000..3bbc7469f0e4
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8192-mfg.c
@@ -0,0 +1,50 @@
+// 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/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 mfg_cg_regs = {
+	.set_ofs = 0x4,
+	.clr_ofs = 0x8,
+	.sta_ofs = 0x0,
+};
+
+#define GATE_MFG(_id, _name, _parent, _shift)	\
+	GATE_MTK(_id, _name, _parent, &mfg_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
+
+static const struct mtk_gate mfg_clks[] = {
+	GATE_MFG(CLK_MFG_BG3D, "mfg_bg3d", "mfg_pll_sel", 0),
+};
+
+static const struct mtk_clk_desc mfg_desc = {
+	.clks = mfg_clks,
+	.num_clks = ARRAY_SIZE(mfg_clks),
+};
+
+static const struct of_device_id of_match_clk_mt8192_mfg[] = {
+	{
+		.compatible = "mediatek,mt8192-mfgcfg",
+		.data = &mfg_desc,
+	}, {
+		/* sentinel */
+	}
+};
+
+static struct platform_driver clk_mt8192_mfg_drv = {
+	.probe = mtk_clk_simple_probe,
+	.driver = {
+		.name = "clk-mt8192-mfg",
+		.of_match_table = of_match_clk_mt8192_mfg,
+	},
+};
+
+builtin_platform_driver(clk_mt8192_mfg_drv);
-- 
2.18.0