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Commit 5a227cd1 authored by Laxman Dewangan's avatar Laxman Dewangan Committed by Stephen Boyd
Browse files

clk: max77686: Add support for MAX77620 clocks 



Maxim Max77620 has one 32KHz clock output and the clock HW
IP used on this PMIC is same as what it is there in the MAX77686.

Add clock driver support for MAX77620 on the MAX77686 driver.

CC: Krzysztof Kozlowski <k.kozlowski@samsung.com>
CC: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: default avatarLaxman Dewangan <ldewangan@nvidia.com>
Tested-by: default avatarKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: default avatarKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: default avatarJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: default avatarStephen Boyd <sboyd@codeaurora.org>
parent e581245d

drivers/clk/Kconfig

+4 −3
Original line number Original line Diff line number Diff line
@@ -32,10 +32,11 @@ config COMMON_CLK_WM831X 
source "drivers/clk/versatile/Kconfig"

source "drivers/clk/versatile/Kconfig"





config COMMON_CLK_MAX77686

config COMMON_CLK_MAX77686

	tristate "Clock driver for Maxim 77686/77802 MFD"

	tristate "Clock driver for Maxim 77620/77686/77802 MFD"

	depends on MFD_MAX77686

	depends on MFD_MAX77686 || MFD_MAX77620

	---help---

	---help---

	  This driver supports Maxim 77686/77802 crystal oscillator clock.

	  This driver supports Maxim 77620/77686/77802 crystal oscillator

	  clock.





config COMMON_CLK_RK808

config COMMON_CLK_RK808

	tristate "Clock driver for RK808/RK818"

	tristate "Clock driver for RK808/RK818"

drivers/clk/clk-max77686.c

+18 −0
Original line number Original line Diff line number Diff line
@@ -25,6 +25,7 @@ 
#include <linux/err.h>

#include <linux/err.h>

#include <linux/module.h>

#include <linux/module.h>

#include <linux/platform_device.h>

#include <linux/platform_device.h>

#include <linux/mfd/max77620.h>

#include <linux/mfd/max77686.h>

#include <linux/mfd/max77686.h>

#include <linux/mfd/max77686-private.h>

#include <linux/mfd/max77686-private.h>

#include <linux/clk-provider.h>

#include <linux/clk-provider.h>
@@ -35,12 +36,14 @@ 




#include <dt-bindings/clock/maxim,max77686.h>

#include <dt-bindings/clock/maxim,max77686.h>

#include <dt-bindings/clock/maxim,max77802.h>

#include <dt-bindings/clock/maxim,max77802.h>

#include <dt-bindings/clock/maxim,max77620.h>





#define MAX77802_CLOCK_LOW_JITTER_SHIFT 0x3

#define MAX77802_CLOCK_LOW_JITTER_SHIFT 0x3





enum max77686_chip_name {

enum max77686_chip_name {

	CHIP_MAX77686,

	CHIP_MAX77686,

	CHIP_MAX77802,

	CHIP_MAX77802,

	CHIP_MAX77620,

};

};





struct max77686_hw_clk_info {

struct max77686_hw_clk_info {
@@ -97,6 +100,15 @@ max77686_hw_clk_info max77802_hw_clks_info[MAX77802_CLKS_NUM] = { 
	},

	},

};

};





static const struct

max77686_hw_clk_info max77620_hw_clks_info[MAX77620_CLKS_NUM] = {

	[MAX77620_CLK_32K_OUT0] = {

		.name = "32khz_out0",

		.clk_reg = MAX77620_REG_CNFG1_32K,

		.clk_enable_mask = MAX77620_CNFG1_32K_OUT0_EN,

	},

};



static struct max77686_clk_init_data *to_max77686_clk_init_data(

static struct max77686_clk_init_data *to_max77686_clk_init_data(

				struct clk_hw *hw)

				struct clk_hw *hw)

{

{
@@ -181,6 +193,11 @@ static int max77686_clk_probe(struct platform_device *pdev) 
		hw_clks = max77802_hw_clks_info;

		hw_clks = max77802_hw_clks_info;

		break;

		break;





	case CHIP_MAX77620:

		num_clks = MAX77620_CLKS_NUM;

		hw_clks = max77620_hw_clks_info;

		break;



	default:

	default:

		dev_err(dev, "Unknown Chip ID\n");

		dev_err(dev, "Unknown Chip ID\n");

		return -EINVAL;

		return -EINVAL;
@@ -284,6 +301,7 @@ static int max77686_clk_remove(struct platform_device *pdev) 
static const struct platform_device_id max77686_clk_id[] = {

static const struct platform_device_id max77686_clk_id[] = {

	{ "max77686-clk", .driver_data = CHIP_MAX77686, },

	{ "max77686-clk", .driver_data = CHIP_MAX77686, },

	{ "max77802-clk", .driver_data = CHIP_MAX77802, },

	{ "max77802-clk", .driver_data = CHIP_MAX77802, },

	{ "max77620-clock", .driver_data = CHIP_MAX77620, },

	{},

	{},

};

};

MODULE_DEVICE_TABLE(platform, max77686_clk_id);

MODULE_DEVICE_TABLE(platform, max77686_clk_id);