[PATCH 0/4] Continue the mx31_3ds machine support

[PATCH 0/4] Continue the mx31_3ds machine support

[Alberto Panizzo]

Hello,

this series on top of Sascha's imx-for-2.6.39 branch continue the
support of peripherals for the machine mx31_3ds.

The first one fix also a kernel NULL pointer error introduced by
4d2f13be1e370a670c1cae20c194d5ce961e0fa5

Best regards,

-- 
| Alberto Panizzo                                 Amarula Solutions BV |
| CTO  -  Founder                                      Cruquiuskade 47 |
| T. +31(0)851119171                              Amsterdam 1018 AM NL |
| F. +31(0)204106211                          www.amarulasolutions.com |

[PATCH 1/4] spi_imx: Fix misspelled configuration variable SOC_IMX31

[Alberto Panizzo]

Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
---
 drivers/spi/Kconfig |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index bd9dad5..996cf03 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -161,7 +161,7 @@ config SPI_IMX_VER_0_0
 	def_bool y if SOC_IMX21 || SOC_IMX27
 
 config SPI_IMX_VER_0_4
-	def_bool y if SOC_MX31
+	def_bool y if SOC_IMX31
 
 config SPI_IMX_VER_0_7
 	def_bool y if ARCH_MX25 || SOC_IMX35 || SOC_IMX51 || SOC_IMX53
-- 
1.7.1

[PATCH 2/4] mach-mx31_3ds: Add support for the MMC slot of the personality board

[Alberto Panizzo]

Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
---
 arch/arm/mach-mx3/mach-mx31_3ds.c |  116 ++++++++++++++++++++++++++++++++++++-
 1 files changed, 114 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-mx3/mach-mx31_3ds.c b/arch/arm/mach-mx3/mach-mx31_3ds.c
index f1dbb9d..cd73513 100644
--- a/arch/arm/mach-mx3/mach-mx31_3ds.c
+++ b/arch/arm/mach-mx3/mach-mx31_3ds.c
@@ -35,6 +35,7 @@
 #include <mach/iomux-mx3.h>
 #include <mach/3ds_debugboard.h>
 #include <mach/ulpi.h>
+#include <mach/mmc.h>
 
 #include "devices-imx31.h"
 #include "devices.h"
@@ -99,6 +100,98 @@ static int mx31_3ds_pins[] = {
 	/* I2C1 */
 	MX31_PIN_I2C_CLK__I2C1_SCL,
 	MX31_PIN_I2C_DAT__I2C1_SDA,
+	/* SDHC1 */
+	MX31_PIN_SD1_DATA3__SD1_DATA3,
+	MX31_PIN_SD1_DATA2__SD1_DATA2,
+	MX31_PIN_SD1_DATA1__SD1_DATA1,
+	MX31_PIN_SD1_DATA0__SD1_DATA0,
+	MX31_PIN_SD1_CLK__SD1_CLK,
+	MX31_PIN_SD1_CMD__SD1_CMD,
+	MX31_PIN_GPIO3_1__GPIO3_1, /* Card detect */
+	MX31_PIN_GPIO3_0__GPIO3_0, /* OE */
+};
+
+/*
+ * Support for SD card slot in personality board
+ */
+static int mx31_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
+			       void *data)
+{
+	int ret;
+	int gpio_det, gpio_bus_en;
+
+	gpio_det = IOMUX_TO_GPIO(MX31_PIN_GPIO3_1);
+	gpio_bus_en = IOMUX_TO_GPIO(MX31_PIN_GPIO3_0);
+
+	ret = gpio_request(gpio_det, "sdhc1-card-detect");
+	if (ret) {
+		pr_warning("Unable to request the SD/MMC card-detect GPIO.\n");
+		return ret;
+	}
+
+	ret = gpio_request(gpio_bus_en, "sdhc1-bus-enable");
+	if (ret) {
+		pr_warning("Unable to request the SD/MMC bus enable GPIO.\n");
+		goto gpio_free_be;
+	}
+
+	ret = gpio_direction_input(gpio_det);
+	if (ret) {
+		pr_warning("Unable to manage the SD/MMC card-detect GPIO.\n");
+		goto gpio_free_all;
+	}
+
+	ret = gpio_direction_output(gpio_bus_en, 0);
+	if (ret) {
+		pr_warning("Unable to manage the SD/MMC bus enable GPIO.\n");
+		goto gpio_free_all;
+	}
+
+	ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
+			  detect_irq, IRQF_DISABLED |
+			  IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
+			  "sdhc1-detect", data);
+	if (ret) {
+		pr_warning("Unable to request the SD/MMC card-detect IRQ.\n");
+		goto gpio_free_all;
+	}
+
+	return 0;
+
+gpio_free_all:
+	gpio_free(gpio_bus_en);
+gpio_free_be:
+	gpio_free(gpio_det);
+	return ret;
+}
+
+static void mx31_3ds_sdhc1_exit(struct device *dev, void *data)
+{
+	free_irq(IOMUX_TO_IRQ(MX31_PIN_GPIO3_1), data);
+	gpio_free(IOMUX_TO_GPIO(MX31_PIN_GPIO3_1));
+	gpio_free(IOMUX_TO_GPIO(MX31_PIN_GPIO3_0));
+}
+
+static void mx31_3ds_sdhc1_setpower(struct device *dev, unsigned int vdd)
+{
+	/*
+	 * While the voltage stuff is done by the driver, activate the
+	 * Buffer Enable Pin only if there is a card in slot to fix the card
+	 * voltage issue caused by bi-directional chip TXB0108 on 3Stack.
+	 * Done here because at this stage we have for sure a debounced value
+	 * of the presence of the card, showed by the value of vdd.
+	 * 7 == ilog2(MMC_VDD_165_195)
+	 */
+	if (vdd > 7)
+		gpio_set_value(IOMUX_TO_GPIO(MX31_PIN_GPIO3_0), 1);
+	else
+		gpio_set_value(IOMUX_TO_GPIO(MX31_PIN_GPIO3_0), 0);
+}
+
+static struct imxmmc_platform_data sdhc1_pdata = {
+	.init	= mx31_3ds_sdhc1_init,
+	.exit	= mx31_3ds_sdhc1_exit,
+	.setpower = mx31_3ds_sdhc1_setpower,
 };
 
 /*
@@ -132,11 +225,26 @@ static struct regulator_init_data pwgtx_init = {
 
 static struct regulator_init_data gpo_init = {
 	.constraints = {
-		.boot_on = 1,
-		.always_on = 1,
+		.boot_on	= 1,
+		.always_on	= 1,
 	}
 };
 
+static struct regulator_consumer_supply vmmc2_consumers[] = {
+	REGULATOR_SUPPLY("vmmc", "mxc-mmc.0"),
+};
+
+static struct regulator_init_data vmmc2_init = {
+	.constraints = {
+		.min_uV = 3000000,
+		.max_uV = 3000000,
+		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
+				  REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies = ARRAY_SIZE(vmmc2_consumers),
+	.consumer_supplies = vmmc2_consumers,
+};
+
 static struct mc13xxx_regulator_init_data mx31_3ds_regulators[] = {
 	{
 		.id = MC13783_REG_PWGT1SPI, /* Power Gate for ARM core. */
@@ -151,6 +259,9 @@ static struct mc13xxx_regulator_init_data mx31_3ds_regulators[] = {
 	}, {
 		.id = MC13783_REG_GPO3, /* Turn on 3.3V */
 		.init_data = &gpo_init,
+	}, {
+		.id = MC13783_REG_VMMC2, /* Power MMC/SD, WiFi/Bluetooth. */
+		.init_data = &vmmc2_init,
 	},
 };
 
@@ -362,6 +473,7 @@ static void __init mx31_3ds_init(void)
 				    "devices on the debug board are unusable.\n");
 	imx31_add_imx2_wdt(NULL);
 	imx31_add_imx_i2c0(&mx31_3ds_i2c0_data);
+	imx31_add_mxc_mmc(0, &sdhc1_pdata);
 }
 
 static void __init mx31_3ds_timer_init(void)
-- 
1.7.1

[PATCH 3/4] mach-mx31_3ds: Add support for framebuffer and LCD

[Alberto Panizzo]

Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
---
 arch/arm/mach-mx3/mach-mx31_3ds.c |  130 +++++++++++++++++++++++++++++++++++++
 1 files changed, 130 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-mx3/mach-mx31_3ds.c b/arch/arm/mach-mx3/mach-mx31_3ds.c
index cd73513..de250cb 100644
--- a/arch/arm/mach-mx3/mach-mx31_3ds.c
+++ b/arch/arm/mach-mx3/mach-mx31_3ds.c
@@ -21,6 +21,7 @@
 #include <linux/platform_device.h>
 #include <linux/mfd/mc13783.h>
 #include <linux/spi/spi.h>
+#include <linux/spi/l4f00242t03.h>
 #include <linux/regulator/machine.h>
 #include <linux/usb/otg.h>
 #include <linux/usb/ulpi.h>
@@ -36,6 +37,8 @@
 #include <mach/3ds_debugboard.h>
 #include <mach/ulpi.h>
 #include <mach/mmc.h>
+#include <mach/ipu.h>
+#include <mach/mx3fb.h>
 
 #include "devices-imx31.h"
 #include "devices.h"
@@ -50,6 +53,12 @@ static int mx31_3ds_pins[] = {
 	MX31_PIN_TXD1__TXD1,
 	MX31_PIN_RXD1__RXD1,
 	IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO),
+	/*SPI0*/
+	MX31_PIN_CSPI1_SCLK__SCLK,
+	MX31_PIN_CSPI1_MOSI__MOSI,
+	MX31_PIN_CSPI1_MISO__MISO,
+	MX31_PIN_CSPI1_SPI_RDY__SPI_RDY,
+	MX31_PIN_CSPI1_SS2__SS2, /* CS for LCD */
 	/* SPI 1 */
 	MX31_PIN_CSPI2_SCLK__SCLK,
 	MX31_PIN_CSPI2_MOSI__MOSI,
@@ -109,6 +118,70 @@ static int mx31_3ds_pins[] = {
 	MX31_PIN_SD1_CMD__SD1_CMD,
 	MX31_PIN_GPIO3_1__GPIO3_1, /* Card detect */
 	MX31_PIN_GPIO3_0__GPIO3_0, /* OE */
+	/* Framebuffer */
+	MX31_PIN_LD0__LD0,
+	MX31_PIN_LD1__LD1,
+	MX31_PIN_LD2__LD2,
+	MX31_PIN_LD3__LD3,
+	MX31_PIN_LD4__LD4,
+	MX31_PIN_LD5__LD5,
+	MX31_PIN_LD6__LD6,
+	MX31_PIN_LD7__LD7,
+	MX31_PIN_LD8__LD8,
+	MX31_PIN_LD9__LD9,
+	MX31_PIN_LD10__LD10,
+	MX31_PIN_LD11__LD11,
+	MX31_PIN_LD12__LD12,
+	MX31_PIN_LD13__LD13,
+	MX31_PIN_LD14__LD14,
+	MX31_PIN_LD15__LD15,
+	MX31_PIN_LD16__LD16,
+	MX31_PIN_LD17__LD17,
+	MX31_PIN_VSYNC3__VSYNC3,
+	MX31_PIN_HSYNC__HSYNC,
+	MX31_PIN_FPSHIFT__FPSHIFT,
+	MX31_PIN_CONTRAST__CONTRAST,
+};
+
+/*
+ * FB support
+ */
+static const struct fb_videomode fb_modedb[] = {
+	{	/* 480x640 @ 60 Hz */
+		.name		= "Epson-VGA",
+		.refresh	= 60,
+		.xres		= 480,
+		.yres		= 640,
+		.pixclock	= 41701,
+		.left_margin	= 20,
+		.right_margin	= 41,
+		.upper_margin	= 10,
+		.lower_margin	= 5,
+		.hsync_len	= 20,
+		.vsync_len	= 10,
+		.sync		= FB_SYNC_OE_ACT_HIGH | FB_SYNC_CLK_INVERT,
+		.vmode		= FB_VMODE_NONINTERLACED,
+		.flag		= 0,
+	},
+};
+
+static struct ipu_platform_data mx3_ipu_data = {
+	.irq_base = MXC_IPU_IRQ_START,
+};
+
+static struct mx3fb_platform_data mx3fb_pdata = {
+	.dma_dev	= &mx3_ipu.dev,
+	.name		= "Epson-VGA",
+	.mode		= fb_modedb,
+	.num_modes	= ARRAY_SIZE(fb_modedb),
+};
+
+/* LCD */
+static struct l4f00242t03_pdata mx31_3ds_l4f00242t03_pdata = {
+	.reset_gpio =		IOMUX_TO_GPIO(MX31_PIN_LCS1),
+	.data_enable_gpio =	IOMUX_TO_GPIO(MX31_PIN_SER_RS),
+	.core_supply =		"lcd_2v8",
+	.io_supply =		"vdd_lcdio",
 };
 
 /*
@@ -245,6 +318,38 @@ static struct regulator_init_data vmmc2_init = {
 	.consumer_supplies = vmmc2_consumers,
 };
 
+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,
+		.apply_uV = 1,
+		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
+				  REGULATOR_CHANGE_STATUS,
+	},
+	.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,
+		.apply_uV = 1,
+		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
+				  REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
+	.consumer_supplies = vgen_consumers,
+};
+
 static struct mc13xxx_regulator_init_data mx31_3ds_regulators[] = {
 	{
 		.id = MC13783_REG_PWGT1SPI, /* Power Gate for ARM core. */
@@ -262,6 +367,12 @@ static struct mc13xxx_regulator_init_data mx31_3ds_regulators[] = {
 	}, {
 		.id = MC13783_REG_VMMC2, /* Power MMC/SD, WiFi/Bluetooth. */
 		.init_data = &vmmc2_init,
+	}, {
+		.id = MC13783_REG_VMMC1, /* Power LCD, CMOS, FM, GPS, Accel. */
+		.init_data = &vmmc1_init,
+	}, {
+		.id = MC13783_REG_VGEN,  /* Power LCD */
+		.init_data = &vgen_init,
 	},
 };
 
@@ -273,6 +384,15 @@ static struct mc13xxx_platform_data mc13783_pdata __initdata = {
 };
 
 /* SPI */
+static int spi0_internal_chipselect[] = {
+	MXC_SPI_CS(2),
+};
+
+static const struct spi_imx_master spi0_pdata __initconst = {
+	.chipselect	= spi0_internal_chipselect,
+	.num_chipselect	= ARRAY_SIZE(spi0_internal_chipselect),
+};
+
 static int spi1_internal_chipselect[] = {
 	MXC_SPI_CS(0),
 	MXC_SPI_CS(2),
@@ -292,6 +412,12 @@ static struct spi_board_info mx31_3ds_spi_devs[] __initdata = {
 		.platform_data	= &mc13783_pdata,
 		.irq		= IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
 		.mode = SPI_CS_HIGH,
+	}, {
+		.modalias	= "l4f00242t03",
+		.max_speed_hz	= 5000000,
+		.bus_num	= 0,
+		.chip_select	= 0, /* SS2 */
+		.platform_data	= &mx31_3ds_l4f00242t03_pdata,
 	},
 };
 
@@ -474,6 +600,10 @@ static void __init mx31_3ds_init(void)
 	imx31_add_imx2_wdt(NULL);
 	imx31_add_imx_i2c0(&mx31_3ds_i2c0_data);
 	imx31_add_mxc_mmc(0, &sdhc1_pdata);
+
+	imx31_add_spi_imx0(&spi0_pdata);
+	mxc_register_device(&mx3_ipu, &mx3_ipu_data);
+	mxc_register_device(&mx3_fb, &mx3fb_pdata);
 }
 
 static void __init mx31_3ds_timer_init(void)
-- 
1.7.1

[PATCH 4/4] mx31_3ds: Add support for the camera device on the personality board

[Alberto Panizzo]

Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
---
 arch/arm/mach-mx3/mach-mx31_3ds.c |  157 +++++++++++++++++++++++++++++++++++++
 1 files changed, 157 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-mx3/mach-mx31_3ds.c b/arch/arm/mach-mx3/mach-mx31_3ds.c
index de250cb..9ea2c2c 100644
--- a/arch/arm/mach-mx3/mach-mx31_3ds.c
+++ b/arch/arm/mach-mx3/mach-mx31_3ds.c
@@ -25,6 +25,9 @@
 #include <linux/regulator/machine.h>
 #include <linux/usb/otg.h>
 #include <linux/usb/ulpi.h>
+#include <linux/memblock.h>
+
+#include <media/soc_camera.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -39,6 +42,7 @@
 #include <mach/mmc.h>
 #include <mach/ipu.h>
 #include <mach/mx3fb.h>
+#include <mach/mx3_camera.h>
 
 #include "devices-imx31.h"
 #include "devices.h"
@@ -141,6 +145,98 @@ static int mx31_3ds_pins[] = {
 	MX31_PIN_HSYNC__HSYNC,
 	MX31_PIN_FPSHIFT__FPSHIFT,
 	MX31_PIN_CONTRAST__CONTRAST,
+	/* CSI */
+	MX31_PIN_CSI_D6__CSI_D6,
+	MX31_PIN_CSI_D7__CSI_D7,
+	MX31_PIN_CSI_D8__CSI_D8,
+	MX31_PIN_CSI_D9__CSI_D9,
+	MX31_PIN_CSI_D10__CSI_D10,
+	MX31_PIN_CSI_D11__CSI_D11,
+	MX31_PIN_CSI_D12__CSI_D12,
+	MX31_PIN_CSI_D13__CSI_D13,
+	MX31_PIN_CSI_D14__CSI_D14,
+	MX31_PIN_CSI_D15__CSI_D15,
+	MX31_PIN_CSI_HSYNC__CSI_HSYNC,
+	MX31_PIN_CSI_MCLK__CSI_MCLK,
+	MX31_PIN_CSI_PIXCLK__CSI_PIXCLK,
+	MX31_PIN_CSI_VSYNC__CSI_VSYNC,
+	MX31_PIN_CSI_D5__GPIO3_5, /* CMOS PWDN */
+	IOMUX_MODE(MX31_PIN_RI_DTE1, IOMUX_CONFIG_GPIO), /* CMOS reset */
+};
+
+/*
+ * Camera support
+ */
+static phys_addr_t mx3_camera_base __initdata;
+#define MX3_CAMERA_BUF_SIZE SZ_8M
+
+static int __init mx31_3ds_camera_alloc_dma(void)
+{
+	int dma;
+
+	if (!mx3_camera_base)
+		return -ENOMEM;
+
+	dma = dma_declare_coherent_memory(&mx3_camera.dev,
+					mx3_camera_base, mx3_camera_base,
+					MX3_CAMERA_BUF_SIZE,
+					DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
+
+	if (!(dma & DMA_MEMORY_MAP))
+		return -ENOMEM;
+
+	return 0;
+}
+
+static int mx31_3ds_camera_power(struct device *dev, int on)
+{
+	/* enable or disable the camera */
+	pr_debug("%s: %s the camera\n", __func__, on ? "ENABLE" : "DISABLE");
+	gpio_set_value(IOMUX_TO_GPIO(MX31_PIN_CSI_D5), on ? 0 : 1);
+
+	if (!on)
+		goto out;
+
+	/* If enabled, give a reset impulse */
+	gpio_set_value(IOMUX_TO_GPIO(MX31_PIN_RI_DTE1), 0);
+	msleep(20);
+	gpio_set_value(IOMUX_TO_GPIO(MX31_PIN_RI_DTE1), 1);
+	msleep(100);
+
+out:
+	return 0;
+}
+
+static struct i2c_board_info mx31_3ds_i2c_camera = {
+	I2C_BOARD_INFO("ov2640", 0x30),
+};
+
+static struct regulator_bulk_data mx31_3ds_camera_regs[] = {
+	{ .supply = "cmos_vcore" },
+	{ .supply = "cmos_2v8" },
+};
+
+static struct soc_camera_link iclink_ov2640 = {
+	.bus_id		= 0,
+	.board_info	= &mx31_3ds_i2c_camera,
+	.i2c_adapter_id	= 0,
+	.power		= mx31_3ds_camera_power,
+	.regulators	= mx31_3ds_camera_regs,
+	.num_regulators	= ARRAY_SIZE(mx31_3ds_camera_regs),
+};
+
+static struct platform_device mx31_3ds_ov2640 = {
+	.name	= "soc-camera-pdrv",
+	.id	= 0,
+	.dev	= {
+		.platform_data = &iclink_ov2640,
+	},
+};
+
+struct mx3_camera_pdata mx31_3ds_camera_pdata = {
+	.dma_dev	= &mx3_ipu.dev,
+	.flags		= MX3_CAMERA_DATAWIDTH_10,
+	.mclk_10khz	= 2600,
 };
 
 /*
@@ -320,6 +416,7 @@ static struct regulator_init_data vmmc2_init = {
 
 static struct regulator_consumer_supply vmmc1_consumers[] = {
 	REGULATOR_SUPPLY("lcd_2v8", NULL),
+	REGULATOR_SUPPLY("cmos_2v8", "soc-camera-pdrv.0"),
 };
 
 static struct regulator_init_data vmmc1_init = {
@@ -350,6 +447,22 @@ static struct regulator_init_data vgen_init = {
 	.consumer_supplies = vgen_consumers,
 };
 
+static struct regulator_consumer_supply vvib_consumers[] = {
+	REGULATOR_SUPPLY("cmos_vcore", "soc-camera-pdrv.0"),
+};
+
+static struct regulator_init_data vvib_init = {
+	.constraints = {
+		.min_uV = 1300000,
+		.max_uV = 1300000,
+		.apply_uV = 1,
+		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
+				  REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies = ARRAY_SIZE(vvib_consumers),
+	.consumer_supplies = vvib_consumers,
+};
+
 static struct mc13xxx_regulator_init_data mx31_3ds_regulators[] = {
 	{
 		.id = MC13783_REG_PWGT1SPI, /* Power Gate for ARM core. */
@@ -373,6 +486,9 @@ static struct mc13xxx_regulator_init_data mx31_3ds_regulators[] = {
 	}, {
 		.id = MC13783_REG_VGEN,  /* Power LCD */
 		.init_data = &vgen_init,
+	}, {
+		.id = MC13783_REG_VVIB,  /* Power CMOS */
+		.init_data = &vvib_init,
 	},
 };
 
@@ -565,8 +681,14 @@ static const struct imxi2c_platform_data mx31_3ds_i2c0_data __initconst = {
 	.bitrate = 100000,
 };
 
+static struct platform_device *devices[] __initdata = {
+	&mx31_3ds_ov2640,
+};
+
 static void __init mx31_3ds_init(void)
 {
+	int ret;
+
 	mxc_iomux_setup_multiple_pins(mx31_3ds_pins, ARRAY_SIZE(mx31_3ds_pins),
 				      "mx31_3ds");
 
@@ -577,6 +699,8 @@ static void __init mx31_3ds_init(void)
 	spi_register_board_info(mx31_3ds_spi_devs,
 						ARRAY_SIZE(mx31_3ds_spi_devs));
 
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+
 	imx31_add_imx_keypad(&mx31_3ds_keymap_data);
 
 	mx31_3ds_usbotg_init();
@@ -604,6 +728,29 @@ static void __init mx31_3ds_init(void)
 	imx31_add_spi_imx0(&spi0_pdata);
 	mxc_register_device(&mx3_ipu, &mx3_ipu_data);
 	mxc_register_device(&mx3_fb, &mx3fb_pdata);
+
+	/* CSI */
+	/* Camera power: default - off */
+	ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_CSI_D5),
+			   "camera-power");
+	if (!ret) {
+		gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_CSI_D5), 1);
+	} else {
+		pr_err("Failed to request the camera-power gpio");
+		iclink_ov2640.power = NULL;
+	}
+
+	ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_RI_DTE1),
+			   "camera-reset");
+	if (!ret)
+		gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_RI_DTE1), 1);
+	else
+		pr_err("Failed to request the camera-reset gpio");
+
+	if (!mx31_3ds_camera_alloc_dma())
+		mxc_register_device(&mx3_camera, &mx31_3ds_camera_pdata);
+	else
+		pr_err("Failed to allocate dma memory for camera");
 }
 
 static void __init mx31_3ds_timer_init(void)
@@ -615,6 +762,15 @@ static struct sys_timer mx31_3ds_timer = {
 	.init	= mx31_3ds_timer_init,
 };
 
+static void __init mx31_3ds_reserve(void)
+{
+	/* reserve MX3_CAMERA_BUF_SIZE bytes for mx3-camera */
+	mx3_camera_base = memblock_alloc(MX3_CAMERA_BUF_SIZE,
+					 MX3_CAMERA_BUF_SIZE);
+	memblock_free(mx3_camera_base, MX3_CAMERA_BUF_SIZE);
+	memblock_remove(mx3_camera_base, MX3_CAMERA_BUF_SIZE);
+}
+
 MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
 	/* Maintainer: Freescale Semiconductor, Inc. */
 	.boot_params = MX3x_PHYS_OFFSET + 0x100,
@@ -623,4 +779,5 @@ MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
 	.init_irq = mx31_init_irq,
 	.timer = &mx31_3ds_timer,
 	.init_machine = mx31_3ds_init,
+	.reserve = mx31_3ds_reserve,
 MACHINE_END
-- 
1.7.1

[PATCH 2/4] mach-mx31_3ds: Add support for the MMC slot of the personality board

[Sascha Hauer]

On Sun, Mar 06, 2011 at 04:40:01PM +0100, Alberto Panizzo wrote:
> 
> 
> Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
> ---
>  arch/arm/mach-mx3/mach-mx31_3ds.c |  116 ++++++++++++++++++++++++++++++++++++-
>  1 files changed, 114 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/mach-mx3/mach-mx31_3ds.c b/arch/arm/mach-mx3/mach-mx31_3ds.c
> index f1dbb9d..cd73513 100644
> --- a/arch/arm/mach-mx3/mach-mx31_3ds.c
> +++ b/arch/arm/mach-mx3/mach-mx31_3ds.c
> @@ -35,6 +35,7 @@
>  #include <mach/iomux-mx3.h>
>  #include <mach/3ds_debugboard.h>
>  #include <mach/ulpi.h>
> +#include <mach/mmc.h>
>  
>  #include "devices-imx31.h"
>  #include "devices.h"
> @@ -99,6 +100,98 @@ static int mx31_3ds_pins[] = {
>  	/* I2C1 */
>  	MX31_PIN_I2C_CLK__I2C1_SCL,
>  	MX31_PIN_I2C_DAT__I2C1_SDA,
> +	/* SDHC1 */
> +	MX31_PIN_SD1_DATA3__SD1_DATA3,
> +	MX31_PIN_SD1_DATA2__SD1_DATA2,
> +	MX31_PIN_SD1_DATA1__SD1_DATA1,
> +	MX31_PIN_SD1_DATA0__SD1_DATA0,
> +	MX31_PIN_SD1_CLK__SD1_CLK,
> +	MX31_PIN_SD1_CMD__SD1_CMD,
> +	MX31_PIN_GPIO3_1__GPIO3_1, /* Card detect */
> +	MX31_PIN_GPIO3_0__GPIO3_0, /* OE */
> +};
> +
> +/*
> + * Support for SD card slot in personality board
> + */
> +static int mx31_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
> +			       void *data)
> +{
> +	int ret;
> +	int gpio_det, gpio_bus_en;
> +
> +	gpio_det = IOMUX_TO_GPIO(MX31_PIN_GPIO3_1);
> +	gpio_bus_en = IOMUX_TO_GPIO(MX31_PIN_GPIO3_0);
> +
> +	ret = gpio_request(gpio_det, "sdhc1-card-detect");
> +	if (ret) {
> +		pr_warning("Unable to request the SD/MMC card-detect GPIO.\n");
> +		return ret;
> +	}
> +
> +	ret = gpio_request(gpio_bus_en, "sdhc1-bus-enable");
> +	if (ret) {
> +		pr_warning("Unable to request the SD/MMC bus enable GPIO.\n");
> +		goto gpio_free_be;
> +	}
> +
> +	ret = gpio_direction_input(gpio_det);
> +	if (ret) {
> +		pr_warning("Unable to manage the SD/MMC card-detect GPIO.\n");
> +		goto gpio_free_all;
> +	}
> +
> +	ret = gpio_direction_output(gpio_bus_en, 0);
> +	if (ret) {
> +		pr_warning("Unable to manage the SD/MMC bus enable GPIO.\n");
> +		goto gpio_free_all;
> +	}

Wolfram just arrived, so I probably have some moments left before he
says it: You should use gpio_request_array here.

> +
> +	ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
> +			  detect_irq, IRQF_DISABLED |
> +			  IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
> +			  "sdhc1-detect", data);
> +	if (ret) {
> +		pr_warning("Unable to request the SD/MMC card-detect IRQ.\n");
> +		goto gpio_free_all;
> +	}
> +
> +	return 0;
> +
> +gpio_free_all:
> +	gpio_free(gpio_bus_en);
> +gpio_free_be:
> +	gpio_free(gpio_det);
> +	return ret;
> +}
> +
> +static void mx31_3ds_sdhc1_exit(struct device *dev, void *data)
> +{
> +	free_irq(IOMUX_TO_IRQ(MX31_PIN_GPIO3_1), data);
> +	gpio_free(IOMUX_TO_GPIO(MX31_PIN_GPIO3_1));
> +	gpio_free(IOMUX_TO_GPIO(MX31_PIN_GPIO3_0));
> +}
> +
> +static void mx31_3ds_sdhc1_setpower(struct device *dev, unsigned int vdd)
> +{
> +	/*
> +	 * While the voltage stuff is done by the driver, activate the
> +	 * Buffer Enable Pin only if there is a card in slot to fix the card
> +	 * voltage issue caused by bi-directional chip TXB0108 on 3Stack.
> +	 * Done here because at this stage we have for sure a debounced value
> +	 * of the presence of the card, showed by the value of vdd.
> +	 * 7 == ilog2(MMC_VDD_165_195)
> +	 */
> +	if (vdd > 7)
> +		gpio_set_value(IOMUX_TO_GPIO(MX31_PIN_GPIO3_0), 1);
> +	else
> +		gpio_set_value(IOMUX_TO_GPIO(MX31_PIN_GPIO3_0), 0);
> +}
> +
> +static struct imxmmc_platform_data sdhc1_pdata = {
> +	.init	= mx31_3ds_sdhc1_init,
> +	.exit	= mx31_3ds_sdhc1_exit,
> +	.setpower = mx31_3ds_sdhc1_setpower,
>  };
>  
>  /*
> @@ -132,11 +225,26 @@ static struct regulator_init_data pwgtx_init = {
>  
>  static struct regulator_init_data gpo_init = {
>  	.constraints = {
> -		.boot_on = 1,
> -		.always_on = 1,
> +		.boot_on	= 1,
> +		.always_on	= 1,
>  	}
>  };


Please just keep it as it is. Some people like the initializers
vertically aligned, others prefer spaces here. But if someone made
a decision, don't change it to increase the chance that git blame
shows something useful.

Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

[PATCH 2/4] mach-mx31_3ds: Add support for the MMC slot of the personality board

[Alberto Panizzo]

On Mon, 2011-03-07 at 09:27 +0100, Sascha Hauer wrote:
> On Sun, Mar 06, 2011 at 04:40:01PM +0100, Alberto Panizzo wrote:
> > 
> > 
> > Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
> > ---
> >  arch/arm/mach-mx3/mach-mx31_3ds.c |  116 ++++++++++++++++++++++++++++++++++++-
> >  1 files changed, 114 insertions(+), 2 deletions(-)
> > 
> > diff --git a/arch/arm/mach-mx3/mach-mx31_3ds.c b/arch/arm/mach-mx3/mach-mx31_3ds.c
> > index f1dbb9d..cd73513 100644
> > --- a/arch/arm/mach-mx3/mach-mx31_3ds.c
> > +++ b/arch/arm/mach-mx3/mach-mx31_3ds.c
> > @@ -35,6 +35,7 @@
> >  #include <mach/iomux-mx3.h>
> >  #include <mach/3ds_debugboard.h>
> >  #include <mach/ulpi.h>
> > +#include <mach/mmc.h>
> >  
> >  #include "devices-imx31.h"
> >  #include "devices.h"
> > @@ -99,6 +100,98 @@ static int mx31_3ds_pins[] = {
> >  	/* I2C1 */
> >  	MX31_PIN_I2C_CLK__I2C1_SCL,
> >  	MX31_PIN_I2C_DAT__I2C1_SDA,
> > +	/* SDHC1 */
> > +	MX31_PIN_SD1_DATA3__SD1_DATA3,
> > +	MX31_PIN_SD1_DATA2__SD1_DATA2,
> > +	MX31_PIN_SD1_DATA1__SD1_DATA1,
> > +	MX31_PIN_SD1_DATA0__SD1_DATA0,
> > +	MX31_PIN_SD1_CLK__SD1_CLK,
> > +	MX31_PIN_SD1_CMD__SD1_CMD,
> > +	MX31_PIN_GPIO3_1__GPIO3_1, /* Card detect */
> > +	MX31_PIN_GPIO3_0__GPIO3_0, /* OE */
> > +};
> > +
> > +/*
> > + * Support for SD card slot in personality board
> > + */
> > +static int mx31_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
> > +			       void *data)
> > +{
> > +	int ret;
> > +	int gpio_det, gpio_bus_en;
> > +
> > +	gpio_det = IOMUX_TO_GPIO(MX31_PIN_GPIO3_1);
> > +	gpio_bus_en = IOMUX_TO_GPIO(MX31_PIN_GPIO3_0);
> > +
> > +	ret = gpio_request(gpio_det, "sdhc1-card-detect");
> > +	if (ret) {
> > +		pr_warning("Unable to request the SD/MMC card-detect GPIO.\n");
> > +		return ret;
> > +	}
> > +
> > +	ret = gpio_request(gpio_bus_en, "sdhc1-bus-enable");
> > +	if (ret) {
> > +		pr_warning("Unable to request the SD/MMC bus enable GPIO.\n");
> > +		goto gpio_free_be;
> > +	}
> > +
> > +	ret = gpio_direction_input(gpio_det);
> > +	if (ret) {
> > +		pr_warning("Unable to manage the SD/MMC card-detect GPIO.\n");
> > +		goto gpio_free_all;
> > +	}
> > +
> > +	ret = gpio_direction_output(gpio_bus_en, 0);
> > +	if (ret) {
> > +		pr_warning("Unable to manage the SD/MMC bus enable GPIO.\n");
> > +		goto gpio_free_all;
> > +	}
> 
> Wolfram just arrived, so I probably have some moments left before he
> says it: You should use gpio_request_array here.

Ok I'll check the API.

> 
> > +
> > +	ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
> > +			  detect_irq, IRQF_DISABLED |
> > +			  IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
> > +			  "sdhc1-detect", data);
> > +	if (ret) {
> > +		pr_warning("Unable to request the SD/MMC card-detect IRQ.\n");
> > +		goto gpio_free_all;
> > +	}
> > +
> > +	return 0;
> > +
> > +gpio_free_all:
> > +	gpio_free(gpio_bus_en);
> > +gpio_free_be:
> > +	gpio_free(gpio_det);
> > +	return ret;
> > +}
> > +
> > +static void mx31_3ds_sdhc1_exit(struct device *dev, void *data)
> > +{
> > +	free_irq(IOMUX_TO_IRQ(MX31_PIN_GPIO3_1), data);
> > +	gpio_free(IOMUX_TO_GPIO(MX31_PIN_GPIO3_1));
> > +	gpio_free(IOMUX_TO_GPIO(MX31_PIN_GPIO3_0));
> > +}
> > +
> > +static void mx31_3ds_sdhc1_setpower(struct device *dev, unsigned int vdd)
> > +{
> > +	/*
> > +	 * While the voltage stuff is done by the driver, activate the
> > +	 * Buffer Enable Pin only if there is a card in slot to fix the card
> > +	 * voltage issue caused by bi-directional chip TXB0108 on 3Stack.
> > +	 * Done here because at this stage we have for sure a debounced value
> > +	 * of the presence of the card, showed by the value of vdd.
> > +	 * 7 == ilog2(MMC_VDD_165_195)
> > +	 */
> > +	if (vdd > 7)
> > +		gpio_set_value(IOMUX_TO_GPIO(MX31_PIN_GPIO3_0), 1);
> > +	else
> > +		gpio_set_value(IOMUX_TO_GPIO(MX31_PIN_GPIO3_0), 0);
> > +}
> > +
> > +static struct imxmmc_platform_data sdhc1_pdata = {
> > +	.init	= mx31_3ds_sdhc1_init,
> > +	.exit	= mx31_3ds_sdhc1_exit,
> > +	.setpower = mx31_3ds_sdhc1_setpower,
> >  };
> >  
> >  /*
> > @@ -132,11 +225,26 @@ static struct regulator_init_data pwgtx_init = {
> >  
> >  static struct regulator_init_data gpo_init = {
> >  	.constraints = {
> > -		.boot_on = 1,
> > -		.always_on = 1,
> > +		.boot_on	= 1,
> > +		.always_on	= 1,
> >  	}
> >  };
> 
> 
> Please just keep it as it is. Some people like the initializers
> vertically aligned, others prefer spaces here. But if someone made
> a decision, don't change it to increase the chance that git blame
> shows something useful.

OK but indeed I've done it for consistency with all the rest of the
file.
A new version soon.

Alberto!
-- 
| Alberto Panizzo                                 Amarula Solutions BV |
| CTO  -  Founder                                      Cruquiuskade 47 |
| T. +31(0)851119171                              Amsterdam 1018 AM NL |
| F. +31(0)204106211                          www.amarulasolutions.com |

[PATCH 1/4] spi_imx: Fix misspelled configuration variable SOC_IMX31

[Alberto Panizzo]

Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
---
 drivers/spi/Kconfig |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index bd9dad5..996cf03 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -161,7 +161,7 @@ config SPI_IMX_VER_0_0
 	def_bool y if SOC_IMX21 || SOC_IMX27
 
 config SPI_IMX_VER_0_4
-	def_bool y if SOC_MX31
+	def_bool y if SOC_IMX31
 
 config SPI_IMX_VER_0_7
 	def_bool y if ARCH_MX25 || SOC_IMX35 || SOC_IMX51 || SOC_IMX53
-- 
1.7.1

[PATCH 1/4] spi_imx: Fix misspelled configuration variable SOC_IMX31

[Uwe Kleine-König]

On Sun, Mar 06, 2011 at 04:39:15PM +0100, Alberto Panizzo wrote:
> Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
Acked-by: Uwe Kleine-K?nig <u.kleine-koenig@pengutronix.de>

> ---
>  drivers/spi/Kconfig |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
> index bd9dad5..996cf03 100644
> --- a/drivers/spi/Kconfig
> +++ b/drivers/spi/Kconfig
> @@ -161,7 +161,7 @@ config SPI_IMX_VER_0_0
>  	def_bool y if SOC_IMX21 || SOC_IMX27
>  
>  config SPI_IMX_VER_0_4
> -	def_bool y if SOC_MX31
> +	def_bool y if SOC_IMX31
>  
>  config SPI_IMX_VER_0_7
>  	def_bool y if ARCH_MX25 || SOC_IMX35 || SOC_IMX51 || SOC_IMX53

-- 
Pengutronix e.K.                           | Uwe Kleine-K?nig            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

[PATCH 4/4] mx31_3ds: Add support for the camera device on the personality board

[Uwe Kleine-König]

Hello Alberto,

On Sun, Mar 06, 2011 at 04:41:41PM +0100, Alberto Panizzo wrote:
> Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
> ---
>  arch/arm/mach-mx3/mach-mx31_3ds.c |  157 +++++++++++++++++++++++++++++++++++++
>  1 files changed, 157 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-mx3/mach-mx31_3ds.c b/arch/arm/mach-mx3/mach-mx31_3ds.c
> index de250cb..9ea2c2c 100644
> --- a/arch/arm/mach-mx3/mach-mx31_3ds.c
> +++ b/arch/arm/mach-mx3/mach-mx31_3ds.c
> @@ -25,6 +25,9 @@
>  #include <linux/regulator/machine.h>
>  #include <linux/usb/otg.h>
>  #include <linux/usb/ulpi.h>
> +#include <linux/memblock.h>
> +
> +#include <media/soc_camera.h>
>  
>  #include <mach/hardware.h>
>  #include <asm/mach-types.h>
> @@ -39,6 +42,7 @@
>  #include <mach/mmc.h>
>  #include <mach/ipu.h>
>  #include <mach/mx3fb.h>
> +#include <mach/mx3_camera.h>
>  
>  #include "devices-imx31.h"
>  #include "devices.h"
> @@ -141,6 +145,98 @@ static int mx31_3ds_pins[] = {
>  	MX31_PIN_HSYNC__HSYNC,
>  	MX31_PIN_FPSHIFT__FPSHIFT,
>  	MX31_PIN_CONTRAST__CONTRAST,
> +	/* CSI */
> +	MX31_PIN_CSI_D6__CSI_D6,
> +	MX31_PIN_CSI_D7__CSI_D7,
> +	MX31_PIN_CSI_D8__CSI_D8,
> +	MX31_PIN_CSI_D9__CSI_D9,
> +	MX31_PIN_CSI_D10__CSI_D10,
> +	MX31_PIN_CSI_D11__CSI_D11,
> +	MX31_PIN_CSI_D12__CSI_D12,
> +	MX31_PIN_CSI_D13__CSI_D13,
> +	MX31_PIN_CSI_D14__CSI_D14,
> +	MX31_PIN_CSI_D15__CSI_D15,
> +	MX31_PIN_CSI_HSYNC__CSI_HSYNC,
> +	MX31_PIN_CSI_MCLK__CSI_MCLK,
> +	MX31_PIN_CSI_PIXCLK__CSI_PIXCLK,
> +	MX31_PIN_CSI_VSYNC__CSI_VSYNC,
> +	MX31_PIN_CSI_D5__GPIO3_5, /* CMOS PWDN */
> +	IOMUX_MODE(MX31_PIN_RI_DTE1, IOMUX_CONFIG_GPIO), /* CMOS reset */
> +};
> +
> +/*
> + * Camera support
> + */
> +static phys_addr_t mx3_camera_base __initdata;
> +#define MX3_CAMERA_BUF_SIZE SZ_8M
> +
> +static int __init mx31_3ds_camera_alloc_dma(void)
> +{
> +	int dma;
> +
> +	if (!mx3_camera_base)
> +		return -ENOMEM;
> +
> +	dma = dma_declare_coherent_memory(&mx3_camera.dev,
> +					mx3_camera_base, mx3_camera_base,
> +					MX3_CAMERA_BUF_SIZE,
> +					DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
This conflicts with the series I sent end of last week.  Sascha didn't
comment yet.

> +
> +	if (!(dma & DMA_MEMORY_MAP))
> +		return -ENOMEM;
> +
> +	return 0;
> +}
> +
> +static int mx31_3ds_camera_power(struct device *dev, int on)
> +{
> +	/* enable or disable the camera */
> +	pr_debug("%s: %s the camera\n", __func__, on ? "ENABLE" : "DISABLE");
> +	gpio_set_value(IOMUX_TO_GPIO(MX31_PIN_CSI_D5), on ? 0 : 1);
> +
> +	if (!on)
> +		goto out;
> +
> +	/* If enabled, give a reset impulse */
> +	gpio_set_value(IOMUX_TO_GPIO(MX31_PIN_RI_DTE1), 0);
> +	msleep(20);
> +	gpio_set_value(IOMUX_TO_GPIO(MX31_PIN_RI_DTE1), 1);
> +	msleep(100);
> +
> +out:
> +	return 0;
> +}
> +
> +static struct i2c_board_info mx31_3ds_i2c_camera = {
> +	I2C_BOARD_INFO("ov2640", 0x30),
> +};
> +
> +static struct regulator_bulk_data mx31_3ds_camera_regs[] = {
> +	{ .supply = "cmos_vcore" },
> +	{ .supply = "cmos_2v8" },
> +};
> +
> +static struct soc_camera_link iclink_ov2640 = {
> +	.bus_id		= 0,
> +	.board_info	= &mx31_3ds_i2c_camera,
> +	.i2c_adapter_id	= 0,
> +	.power		= mx31_3ds_camera_power,
> +	.regulators	= mx31_3ds_camera_regs,
> +	.num_regulators	= ARRAY_SIZE(mx31_3ds_camera_regs),
> +};
> +
> +static struct platform_device mx31_3ds_ov2640 = {
> +	.name	= "soc-camera-pdrv",
> +	.id	= 0,
> +	.dev	= {
> +		.platform_data = &iclink_ov2640,
> +	},
> +};
for a few extra points you could dynamically allocate this device.

> +
> +struct mx3_camera_pdata mx31_3ds_camera_pdata = {
> +	.dma_dev	= &mx3_ipu.dev,
> +	.flags		= MX3_CAMERA_DATAWIDTH_10,
> +	.mclk_10khz	= 2600,
>  };
>  
>  /*
> @@ -320,6 +416,7 @@ static struct regulator_init_data vmmc2_init = {
>  
>  static struct regulator_consumer_supply vmmc1_consumers[] = {
>  	REGULATOR_SUPPLY("lcd_2v8", NULL),
> +	REGULATOR_SUPPLY("cmos_2v8", "soc-camera-pdrv.0"),
>  };
>  
>  static struct regulator_init_data vmmc1_init = {
> @@ -350,6 +447,22 @@ static struct regulator_init_data vgen_init = {
>  	.consumer_supplies = vgen_consumers,
>  };
>  
> +static struct regulator_consumer_supply vvib_consumers[] = {
> +	REGULATOR_SUPPLY("cmos_vcore", "soc-camera-pdrv.0"),
> +};
> +
> +static struct regulator_init_data vvib_init = {
> +	.constraints = {
> +		.min_uV = 1300000,
> +		.max_uV = 1300000,
> +		.apply_uV = 1,
> +		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
> +				  REGULATOR_CHANGE_STATUS,
> +	},
> +	.num_consumer_supplies = ARRAY_SIZE(vvib_consumers),
> +	.consumer_supplies = vvib_consumers,
> +};
> +
>  static struct mc13xxx_regulator_init_data mx31_3ds_regulators[] = {
>  	{
>  		.id = MC13783_REG_PWGT1SPI, /* Power Gate for ARM core. */
> @@ -373,6 +486,9 @@ static struct mc13xxx_regulator_init_data mx31_3ds_regulators[] = {
>  	}, {
>  		.id = MC13783_REG_VGEN,  /* Power LCD */
>  		.init_data = &vgen_init,
> +	}, {
> +		.id = MC13783_REG_VVIB,  /* Power CMOS */
> +		.init_data = &vvib_init,
>  	},
>  };
>  
> @@ -565,8 +681,14 @@ static const struct imxi2c_platform_data mx31_3ds_i2c0_data __initconst = {
>  	.bitrate = 100000,
>  };
>  
> +static struct platform_device *devices[] __initdata = {
> +	&mx31_3ds_ov2640,
> +};
> +
>  static void __init mx31_3ds_init(void)
>  {
> +	int ret;
> +
>  	mxc_iomux_setup_multiple_pins(mx31_3ds_pins, ARRAY_SIZE(mx31_3ds_pins),
>  				      "mx31_3ds");
>  
> @@ -577,6 +699,8 @@ static void __init mx31_3ds_init(void)
>  	spi_register_board_info(mx31_3ds_spi_devs,
>  						ARRAY_SIZE(mx31_3ds_spi_devs));
>  
> +	platform_add_devices(devices, ARRAY_SIZE(devices));
> +
>  	imx31_add_imx_keypad(&mx31_3ds_keymap_data);
>  
>  	mx31_3ds_usbotg_init();
> @@ -604,6 +728,29 @@ static void __init mx31_3ds_init(void)
>  	imx31_add_spi_imx0(&spi0_pdata);
>  	mxc_register_device(&mx3_ipu, &mx3_ipu_data);
>  	mxc_register_device(&mx3_fb, &mx3fb_pdata);
> +
> +	/* CSI */
> +	/* Camera power: default - off */
> +	ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_CSI_D5),
> +			   "camera-power");
> +	if (!ret) {
> +		gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_CSI_D5), 1);
> +	} else {
> +		pr_err("Failed to request the camera-power gpio");
> +		iclink_ov2640.power = NULL;
> +	}
> +
> +	ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_RI_DTE1),
> +			   "camera-reset");
> +	if (!ret)
> +		gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_RI_DTE1), 1);
> +	else
> +		pr_err("Failed to request the camera-reset gpio");
> +
> +	if (!mx31_3ds_camera_alloc_dma())
> +		mxc_register_device(&mx3_camera, &mx31_3ds_camera_pdata);
> +	else
> +		pr_err("Failed to allocate dma memory for camera");
Do you really want to continue registering the camera if the
gpio_request above failed?

>  }
>  
>  static void __init mx31_3ds_timer_init(void)
> @@ -615,6 +762,15 @@ static struct sys_timer mx31_3ds_timer = {
>  	.init	= mx31_3ds_timer_init,
>  };
>  
> +static void __init mx31_3ds_reserve(void)
> +{
> +	/* reserve MX3_CAMERA_BUF_SIZE bytes for mx3-camera */
> +	mx3_camera_base = memblock_alloc(MX3_CAMERA_BUF_SIZE,
> +					 MX3_CAMERA_BUF_SIZE);
> +	memblock_free(mx3_camera_base, MX3_CAMERA_BUF_SIZE);
> +	memblock_remove(mx3_camera_base, MX3_CAMERA_BUF_SIZE);
> +}
> +
>  MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
>  	/* Maintainer: Freescale Semiconductor, Inc. */
>  	.boot_params = MX3x_PHYS_OFFSET + 0x100,
> @@ -623,4 +779,5 @@ MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
>  	.init_irq = mx31_init_irq,
>  	.timer = &mx31_3ds_timer,
>  	.init_machine = mx31_3ds_init,
> +	.reserve = mx31_3ds_reserve,
>  MACHINE_END
Russell wants a different ordering here, see

	http://article.gmane.org/gmane.linux.ports.arm.omap/50721/match=russell+init_early+reserve+map_io

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-K?nig            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |