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Commit a37ed431 authored by Mike Rapoport's avatar Mike Rapoport Committed by Eric Miao
Browse files

[ARM] pxa/em-x270: add ability to control GPS and GPRS power 



Register userspace-consumer devices to allow userspace control of
voltage regulators supplying GPS and GPRS modules

Signed-off-by: default avatarMike Rapoport <mike@compulab.co.il>
Signed-off-by: default avatarEric Miao <eric.miao@marvell.com>
parent 3cb05c97

arch/arm/mach-pxa/em-x270.c

+51 −2
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ 
#include <linux/apm-emulation.h>

#include <linux/i2c.h>

#include <linux/i2c/pca953x.h>

#include <linux/regulator/userspace-consumer.h>



#include <media/soc_camera.h>
@@ -1038,6 +1039,52 @@ static void __init em_x270_init_camera(void) 
static inline void em_x270_init_camera(void) {}

#endif



static struct regulator_bulk_data em_x270_gps_consumer_supply = {

	.supply		= "vcc gps",

};



static struct regulator_userspace_consumer_data em_x270_gps_consumer_data = {

	.name		= "vcc gps",

	.num_supplies	= 1,

	.supplies	= &em_x270_gps_consumer_supply,

};



static struct platform_device em_x270_gps_userspace_consumer = {

	.name		= "reg-userspace-consumer",

	.id		= 0,

	.dev		= {

		.platform_data = &em_x270_gps_consumer_data,

	},

};



static struct regulator_bulk_data em_x270_gprs_consumer_supply = {

	.supply		= "vcc gprs",

};



static struct regulator_userspace_consumer_data em_x270_gprs_consumer_data = {

	.name		= "vcc gprs",

	.num_supplies	= 1,

	.supplies	= &em_x270_gprs_consumer_supply

};



static struct platform_device em_x270_gprs_userspace_consumer = {

	.name		= "reg-userspace-consumer",

	.id		= 1,

	.dev		= {

		.platform_data = &em_x270_gprs_consumer_data,

	}

};



static struct platform_device *em_x270_userspace_consumers[] = {

	&em_x270_gps_userspace_consumer,

	&em_x270_gprs_userspace_consumer,

};



static void __init em_x270_userspace_consumers_init(void)

{

	platform_add_devices(ARRAY_AND_SIZE(em_x270_userspace_consumers));

}



/* DA9030 related initializations */

#define REGULATOR_CONSUMER(_name, _dev, _supply)			       \

	static struct regulator_consumer_supply _name##_consumers[] = {	\
@@ -1047,11 +1094,11 @@ static inline void em_x270_init_camera(void) {} 
		},							\

	}



REGULATOR_CONSUMER(ldo3, NULL, "vcc gps");

REGULATOR_CONSUMER(ldo3, &em_x270_gps_userspace_consumer.dev, "vcc gps");

REGULATOR_CONSUMER(ldo5, NULL, "vcc cam");

REGULATOR_CONSUMER(ldo10, &pxa_device_mci.dev, "vcc sdio");

REGULATOR_CONSUMER(ldo12, NULL, "vcc usb");

REGULATOR_CONSUMER(ldo19, NULL, "vcc gprs");

REGULATOR_CONSUMER(ldo19, &em_x270_gprs_userspace_consumer.dev, "vcc gprs");



#define REGULATOR_INIT(_ldo, _min_uV, _max_uV, _ops_mask)		\

	static struct regulator_init_data _ldo##_data = {		\
@@ -1062,6 +1109,7 @@ REGULATOR_CONSUMER(ldo19, NULL, "vcc gprs"); 
				.enabled = 0,				\

			},						\

			.valid_ops_mask = _ops_mask,			\

			.apply_uV = 1,					\

		},							\

		.num_consumer_supplies = ARRAY_SIZE(_ldo##_consumers),	\

		.consumer_supplies = _ldo##_consumers,			\
@@ -1240,6 +1288,7 @@ static void __init em_x270_init(void) 
	em_x270_init_spi();

	em_x270_init_i2c();

	em_x270_init_camera();

	em_x270_userspace_consumers_init();

}



MACHINE_START(EM_X270, "Compulab EM-X270")