Commit 1b5e5299 authored by Garmin.Chang's avatar Garmin.Chang Committed by Stephen Boyd
Browse files

clk: mediatek: Add MT8188 imp i2c wrapper clock support 



Add MT8188 imp i2c wrapper clock controllers which provide clock gate
control in I2C IP blocks.

Signed-off-by: default avatarGarmin.Chang <Garmin.Chang@mediatek.com>
Reviewed-by: default avatarChen-Yu Tsai <wenst@chromium.org>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230331123621.16167-19-Garmin.Chang@mediatek.com


Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
parent f42b9e9a

drivers/clk/mediatek/Kconfig

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@@ -706,6 +706,13 @@ config COMMON_CLK_MT8188_IMGSYS 
	help

	  This driver supports MediaTek MT8188 imgsys and imgsys2 clocks.



config COMMON_CLK_MT8188_IMP_IIC_WRAP

	tristate "Clock driver for MediaTek MT8188 imp_iic_wrap"

	depends on COMMON_CLK_MT8188

	default COMMON_CLK_MT8188

	help

	  This driver supports MediaTek MT8188 I2C/I3C clocks.



config COMMON_CLK_MT8188_IPESYS

	tristate "Clock driver for MediaTek MT8188 ipesys"

	depends on COMMON_CLK_MT8188_IMGSYS

drivers/clk/mediatek/Makefile

+1 −0
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@@ -104,6 +104,7 @@ obj-$(CONFIG_COMMON_CLK_MT8188) += clk-mt8188-apmixedsys.o clk-mt8188-topckgen.o 
				   clk-mt8188-peri_ao.o clk-mt8188-infra_ao.o

obj-$(CONFIG_COMMON_CLK_MT8188_CAMSYS) += clk-mt8188-cam.o clk-mt8188-ccu.o

obj-$(CONFIG_COMMON_CLK_MT8188_IMGSYS) += clk-mt8188-img.o

obj-$(CONFIG_COMMON_CLK_MT8188_IMP_IIC_WRAP) += clk-mt8188-imp_iic_wrap.o

obj-$(CONFIG_COMMON_CLK_MT8188_IPESYS) += clk-mt8188-ipe.o

obj-$(CONFIG_COMMON_CLK_MT8188_MFGCFG) += clk-mt8188-mfg.o

obj-$(CONFIG_COMMON_CLK_MT8188_VDECSYS) += clk-mt8188-vdec.o

drivers/clk/mediatek/clk-mt8188-imp_iic_wrap.c

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// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2022 MediaTek Inc.

 * Author: Garmin Chang <garmin.chang@mediatek.com>

 */



#include <dt-bindings/clock/mediatek,mt8188-clk.h>

#include <linux/clk-provider.h>

#include <linux/platform_device.h>



#include "clk-gate.h"

#include "clk-mtk.h"



static const struct mtk_gate_regs imp_iic_wrap_cg_regs = {

	.set_ofs = 0xe08,

	.clr_ofs = 0xe04,

	.sta_ofs = 0xe00,

};



#define GATE_IMP_IIC_WRAP(_id, _name, _parent, _shift)			\

	GATE_MTK_FLAGS(_id, _name, _parent, &imp_iic_wrap_cg_regs, _shift,			\

		&mtk_clk_gate_ops_setclr, CLK_OPS_PARENT_ENABLE)



static const struct mtk_gate imp_iic_wrap_c_clks[] = {

	GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_C_AP_CLOCK_I2C0,

			  "imp_iic_wrap_c_ap_clock_i2c0", "top_i2c", 0),

	GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_C_AP_CLOCK_I2C2,

			  "imp_iic_wrap_c_ap_clock_i2c2", "top_i2c", 1),

	GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_C_AP_CLOCK_I2C3,

			  "imp_iic_wrap_c_ap_clock_i2c3", "top_i2c", 2),

};



static const struct mtk_gate imp_iic_wrap_w_clks[] = {

	GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_W_AP_CLOCK_I2C1,

			  "imp_iic_wrap_w_ap_clock_i2c1", "top_i2c", 0),

	GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_W_AP_CLOCK_I2C4,

			  "imp_iic_wrap_w_ap_clock_i2c4", "top_i2c", 1),

};



static const struct mtk_gate imp_iic_wrap_en_clks[] = {

	GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_EN_AP_CLOCK_I2C5,

			  "imp_iic_wrap_en_ap_clock_i2c5", "top_i2c", 0),

	GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_EN_AP_CLOCK_I2C6,

			  "imp_iic_wrap_en_ap_clock_i2c6", "top_i2c", 1),

};



static const struct mtk_clk_desc imp_iic_wrap_c_desc = {

	.clks = imp_iic_wrap_c_clks,

	.num_clks = ARRAY_SIZE(imp_iic_wrap_c_clks),

};



static const struct mtk_clk_desc imp_iic_wrap_w_desc = {

	.clks = imp_iic_wrap_w_clks,

	.num_clks = ARRAY_SIZE(imp_iic_wrap_w_clks),

};



static const struct mtk_clk_desc imp_iic_wrap_en_desc = {

	.clks = imp_iic_wrap_en_clks,

	.num_clks = ARRAY_SIZE(imp_iic_wrap_en_clks),

};



static const struct of_device_id of_match_clk_mt8188_imp_iic_wrap[] = {

	{ .compatible = "mediatek,mt8188-imp-iic-wrap-c", .data = &imp_iic_wrap_c_desc },

	{ .compatible = "mediatek,mt8188-imp-iic-wrap-w", .data = &imp_iic_wrap_w_desc },

	{ .compatible = "mediatek,mt8188-imp-iic-wrap-en", .data = &imp_iic_wrap_en_desc },

	{ /* sentinel */ }

};

MODULE_DEVICE_TABLE(platform, of_match_clk_mt8188_imp_iic_wrap);



static struct platform_driver clk_mt8188_imp_iic_wrap_drv = {

	.probe = mtk_clk_simple_probe,

	.remove = mtk_clk_simple_remove,

	.driver = {

		.name = "clk-mt8188-imp_iic_wrap",

		.of_match_table = of_match_clk_mt8188_imp_iic_wrap,

	},

};



module_platform_driver(clk_mt8188_imp_iic_wrap_drv);

MODULE_LICENSE("GPL");