MXC: mach-mx31_3ds: add support for freescale mc13783 power management device.

Power Gates must to be always enabled.

Signed-off-by: Alberto Panizzo <maramaopercheseimorto@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 45 insertions, 0 deletions

diff --git a/arch/arm/mach-mx3/mach-mx31_3ds.c b/arch/arm/mach-mx3/mach-mx31_3ds.c
index 80179cf9e2f..f54af1e29ca 100644
--- a/arch/arm/mach-mx3/mach-mx31_3ds.c
+++ b/arch/arm/mach-mx3/mach-mx31_3ds.c
@@ -23,6 +23,9 @@
 #include <linux/gpio.h>
 #include <linux/smsc911x.h>
 #include <linux/platform_device.h>
+#include <linux/mfd/mc13783.h>
+#include <linux/spi/spi.h>
+#include <linux/regulator/machine.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -60,6 +63,33 @@ static int mx31_3ds_pins[] = {
         MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
         MX31_PIN_CSPI2_SS0__SS0,
         MX31_PIN_CSPI2_SS2__SS2, /*CS for MC13783 */
+        /* MC13783 IRQ */
+        IOMUX_MODE(MX31_PIN_GPIO1_3, IOMUX_CONFIG_GPIO),
+};
+
+/* Regulators */
+static struct regulator_init_data pwgtx_init = {
+        .constraints = {
+                .boot_on        = 1,
+                .always_on      = 1,
+        },
+};
+
+static struct mc13783_regulator_init_data mx31_3ds_regulators[] = {
+        {
+                .id = MC13783_REGU_PWGT1SPI, /* Power Gate for ARM core. */
+                .init_data = &pwgtx_init,
+        }, {
+                .id = MC13783_REGU_PWGT2SPI, /* Power Gate for L2 Cache. */
+                .init_data = &pwgtx_init,
+        },
+};
+
+/* MC13783 */
+static struct mc13783_platform_data mc13783_pdata __initdata = {
+        .regulators = mx31_3ds_regulators,
+        .num_regulators = ARRAY_SIZE(mx31_3ds_regulators),
+        .flags  = MC13783_USE_REGULATOR,
 };
 
 /* SPI */
@@ -73,6 +103,18 @@ static struct spi_imx_master spi1_pdata = {
         .num_chipselect = ARRAY_SIZE(spi1_internal_chipselect),
 };
 
+static struct spi_board_info mx31_3ds_spi_devs[] __initdata = {
+        {
+                .modalias       = "mc13783",
+                .max_speed_hz   = 1000000,
+                .bus_num        = 1,
+                .chip_select    = 1, /* SS2 */
+                .platform_data  = &mc13783_pdata,
+                .irq            = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
+                .mode = SPI_CS_HIGH,
+        },
+};
+
 /*
  * NAND Flash
  */
@@ -268,7 +310,10 @@ static void __init mxc_board_init(void)
 
         mxc_register_device(&mxc_uart_device0, &uart_pdata);
         mxc_register_device(&mxc_nand_device, &imx31_3ds_nand_flash_pdata);
+
         mxc_register_device(&mxc_spi_device1, &spi1_pdata);
+        spi_register_board_info(mx31_3ds_spi_devs,
+                                                ARRAY_SIZE(mx31_3ds_spi_devs));
 
         if (!mx31_3ds_init_expio())
                 platform_device_register(&smsc911x_device);