Commit c58e4963 authored by Luca Ceresoli's avatar Luca Ceresoli Committed by Lee Jones
Browse files

rtc: max77686: Add MAX77714 support 



The RTC included in the MAX77714 PMIC is very similar to the one in the
MAX77686. Reuse the rtc-max77686.c driver with the minimum required changes
for the MAX77714 RTC.

Signed-off-by: default avatarLuca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent 3f6f1f1f

drivers/rtc/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -375,7 +375,7 @@ config RTC_DRV_MAX8997 


config RTC_DRV_MAX77686

	tristate "Maxim MAX77686"

	depends on MFD_MAX77686 || MFD_MAX77620 || COMPILE_TEST

	depends on MFD_MAX77686 || MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST

	help

	  If you say yes here you will get support for the

	  RTC of Maxim MAX77686/MAX77620/MAX77802 PMIC.

drivers/rtc/rtc-max77686.c

+24 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ 


#define MAX77686_I2C_ADDR_RTC		(0x0C >> 1)

#define MAX77620_I2C_ADDR_RTC		0x68

#define MAX77714_I2C_ADDR_RTC		0x48

#define MAX77686_INVALID_I2C_ADDR	(-1)



/* Define non existing register */
@@ -200,6 +201,28 @@ static const struct max77686_rtc_driver_data max77686_drv_data = { 
	.regmap_config = &max77686_rtc_regmap_config,

};



static const struct regmap_irq_chip max77714_rtc_irq_chip = {

	.name		= "max77714-rtc",

	.status_base	= MAX77686_RTC_INT,

	.mask_base	= MAX77686_RTC_INTM,

	.num_regs	= 1,

	.irqs		= max77686_rtc_irqs,

	.num_irqs	= ARRAY_SIZE(max77686_rtc_irqs) - 1, /* no WTSR on 77714 */

};



static const struct max77686_rtc_driver_data max77714_drv_data = {

	.delay = 16000,

	.mask  = 0x7f,

	.map   = max77686_map,

	.alarm_enable_reg = false,

	.rtc_irq_from_platform = false,

	/* On MAX77714 RTCA1 is BIT 1 of RTCINT (0x00). Not supported by this driver. */

	.alarm_pending_status_reg = MAX77686_INVALID_REG,

	.rtc_i2c_addr = MAX77714_I2C_ADDR_RTC,

	.rtc_irq_chip = &max77714_rtc_irq_chip,

	.regmap_config = &max77686_rtc_regmap_config,

};



static const struct regmap_config max77620_rtc_regmap_config = {

	.reg_bits = 8,

	.val_bits = 8,
@@ -843,6 +866,7 @@ static const struct platform_device_id rtc_id[] = { 
	{ "max77686-rtc", .driver_data = (kernel_ulong_t)&max77686_drv_data, },

	{ "max77802-rtc", .driver_data = (kernel_ulong_t)&max77802_drv_data, },

	{ "max77620-rtc", .driver_data = (kernel_ulong_t)&max77620_drv_data, },

	{ "max77714-rtc", .driver_data = (kernel_ulong_t)&max77714_drv_data, },

	{},

};

MODULE_DEVICE_TABLE(platform, rtc_id);