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mach-mx31_3ds: Add support for the camera device on the personality board

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Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Alberto Panizzo 2011-03-07 11:47:37 +01:00 committed by Sascha Hauer
parent e42010e0e1
commit 164f7b5237
1 changed files with 156 additions and 0 deletions
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156
arch/arm/mach-mx3/mach-mx31_3ds.c
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@ -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 +145,106 @@ 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 MX31_3DS_CAMERA_BUF_SIZE SZ_8M
#define MX31_3DS_GPIO_CAMERA_PW IOMUX_TO_GPIO(MX31_PIN_CSI_D5)
#define MX31_3DS_GPIO_CAMERA_RST IOMUX_TO_GPIO(MX31_PIN_RI_DTE1)
static struct gpio mx31_3ds_camera_gpios[] = {
{ MX31_3DS_GPIO_CAMERA_PW, GPIOF_OUT_INIT_HIGH, "camera-power" },
{ MX31_3DS_GPIO_CAMERA_RST, GPIOF_OUT_INIT_HIGH, "camera-reset" },
};
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,
MX31_3DS_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(MX31_3DS_GPIO_CAMERA_PW, on ? 0 : 1);
if (!on)
goto out;
/* If enabled, give a reset impulse */
gpio_set_value(MX31_3DS_GPIO_CAMERA_RST, 0);
msleep(20);
gpio_set_value(MX31_3DS_GPIO_CAMERA_RST, 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,
};
/*
@ -307,6 +411,7 @@ 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 = {
@ -337,6 +442,22 @@ 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. */
@ -360,6 +481,9 @@ 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,
},
};
@ -552,8 +676,14 @@ 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");
@ -564,6 +694,8 @@ 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();
@ -591,6 +723,20 @@ 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_array(mx31_3ds_camera_gpios,
ARRAY_SIZE(mx31_3ds_camera_gpios));
if (ret) {
pr_err("Failed to request camera gpios");
iclink_ov2640.power = NULL;
}
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)
@ -602,6 +748,15 @@ static struct sys_timer mx31_3ds_timer = {
.init = mx31_3ds_timer_init,
};
static void __init mx31_3ds_reserve(void)
{
/* reserve MX31_3DS_CAMERA_BUF_SIZE bytes for mx3-camera */
mx3_camera_base = memblock_alloc(MX31_3DS_CAMERA_BUF_SIZE,
MX31_3DS_CAMERA_BUF_SIZE);
memblock_free(mx3_camera_base, MX31_3DS_CAMERA_BUF_SIZE);
memblock_remove(mx3_camera_base, MX31_3DS_CAMERA_BUF_SIZE);
}
MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
/* Maintainer: Freescale Semiconductor, Inc. */
.boot_params = MX3x_PHYS_OFFSET + 0x100,
@ -610,4 +765,5 @@ 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