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Commit c67a3e09 authored by Fabio Estevam's avatar Fabio Estevam Committed by Sascha Hauer
Browse files

ARM: imx/mx27_3ds: Add PMIC support 



MX27_3DS board has a MC13783 PMIC connected to the CSPI2 port.

Add support for the PMIC.

Signed-off-by: default avatarFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent 711669e5

arch/arm/mach-imx/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -242,6 +242,7 @@ config MACH_MX27_3DS 
	select IMX_HAVE_PLATFORM_IMX_UART

	select IMX_HAVE_PLATFORM_MXC_EHCI

	select IMX_HAVE_PLATFORM_MXC_MMC

	select IMX_HAVE_PLATFORM_SPI_IMX

	select MXC_ULPI if USB_ULPI

	help

	  Include support for MX27PDK platform. This includes specific

arch/arm/mach-imx/mach-mx27_3ds.c

+77 −0
Original line number Diff line number Diff line
@@ -26,6 +26,9 @@ 
#include <linux/usb/otg.h>

#include <linux/usb/ulpi.h>

#include <linux/delay.h>

#include <linux/mfd/mc13783.h>

#include <linux/spi/spi.h>

#include <linux/regulator/machine.h>



#include <asm/mach-types.h>

#include <asm/mach/arch.h>
@@ -39,6 +42,7 @@ 


#define SD1_EN_GPIO (GPIO_PORTB + 25)

#define OTG_PHY_RESET_GPIO (GPIO_PORTB + 23)

#define SPI2_SS0 (GPIO_PORTD + 21)



static const int mx27pdk_pins[] __initconst = {

	/* UART1 */
@@ -87,6 +91,10 @@ static const int mx27pdk_pins[] __initconst = { 
	PE2_PF_USBOTG_DIR,

	PE24_PF_USBOTG_CLK,

	PE25_PF_USBOTG_DATA7,

	/* CSPI2 */

	PD22_PF_CSPI2_SCLK,

	PD23_PF_CSPI2_MISO,

	PD24_PF_CSPI2_MOSI,

};



static const struct imxuart_platform_data uart_pdata __initconst = {
@@ -176,6 +184,72 @@ static int __init mx27_3ds_otg_mode(char *options) 
}

__setup("otg_mode=", mx27_3ds_otg_mode);



/* Regulators */

static struct regulator_consumer_supply vmmc1_consumers[] = {

	REGULATOR_SUPPLY("lcd_2v8", NULL),

};



static struct regulator_init_data vmmc1_init = {

	.constraints = {

		.min_uV	= 2800000,

		.max_uV = 2800000,

		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,

	},

	.num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),

	.consumer_supplies = vmmc1_consumers,

};



static struct regulator_consumer_supply vgen_consumers[] = {

	REGULATOR_SUPPLY("vdd_lcdio", NULL),

};



static struct regulator_init_data vgen_init = {

	.constraints = {

		.min_uV	= 1800000,

		.max_uV = 1800000,

		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,

	},

	.num_consumer_supplies = ARRAY_SIZE(vgen_consumers),

	.consumer_supplies = vgen_consumers,

};



static struct mc13783_regulator_init_data mx27_3ds_regulators[] = {

	{

		.id = MC13783_REGU_VMMC1,

		.init_data = &vmmc1_init,

	}, {

		.id = MC13783_REGU_VGEN,

		.init_data = &vgen_init,

	},

};



/* MC13783 */

static struct mc13783_platform_data mc13783_pdata __initdata = {

	.regulators = mx27_3ds_regulators,

	.num_regulators = ARRAY_SIZE(mx27_3ds_regulators),

	.flags  = MC13783_USE_REGULATOR,

};



/* SPI */

static int spi2_internal_chipselect[] = {SPI2_SS0};



static const struct spi_imx_master spi2_pdata __initconst = {

	.chipselect	= spi2_internal_chipselect,

	.num_chipselect	= ARRAY_SIZE(spi2_internal_chipselect),

};



static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {

	{

		.modalias	= "mc13783",

		.max_speed_hz	= 1000000,

		.bus_num	= 1,

		.chip_select	= 0, /* SS0 */

		.platform_data	= &mc13783_pdata,

		.irq = IRQ_GPIOC(14),

		.mode = SPI_CS_HIGH,

	},

};





static void __init mx27pdk_init(void)

{
@@ -199,6 +273,9 @@ static void __init mx27pdk_init(void) 
	if (!otg_mode_host)

		imx27_add_fsl_usb2_udc(&otg_device_pdata);



	imx27_add_spi_imx1(&spi2_pdata);

	spi_register_board_info(mx27_3ds_spi_devs,

						ARRAY_SIZE(mx27_3ds_spi_devs));

}



static void __init mx27pdk_timer_init(void)