From c67a3e09a5316bb34a14e2751cee719339934235 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 3 Jan 2011 11:16:39 -0200
Subject: [PATCH] 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: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/mach-imx/Kconfig         |  1 +
 arch/arm/mach-imx/mach-mx27_3ds.c | 77 +++++++++++++++++++++++++++++++
 2 files changed, 78 insertions(+)

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 0449b80a609..17d2e608a21 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -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
diff --git a/arch/arm/mach-imx/mach-mx27_3ds.c b/arch/arm/mach-imx/mach-mx27_3ds.c
index 0ee7a734832..6fd0f8f6deb 100644
--- a/arch/arm/mach-imx/mach-mx27_3ds.c
+++ b/arch/arm/mach-imx/mach-mx27_3ds.c
@@ -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)
-- 
2.41.0