mach-mx31_3ds: Add support for the camera device on the personality board
Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Alberto Panizzo
Sascha Hauer
parent
e42010e0e1
commit
164f7b5237
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@ -25,6 +25,9 @@
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#include <linux/regulator/machine.h>
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#include <linux/usb/otg.h>
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#include <linux/usb/ulpi.h>
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#include <linux/memblock.h>
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#include <media/soc_camera.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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@ -39,6 +42,7 @@
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#include <mach/mmc.h>
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#include <mach/ipu.h>
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#include <mach/mx3fb.h>
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#include <mach/mx3_camera.h>
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#include "devices-imx31.h"
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#include "devices.h"
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@ -141,6 +145,106 @@ static int mx31_3ds_pins[] = {
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MX31_PIN_HSYNC__HSYNC,
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MX31_PIN_FPSHIFT__FPSHIFT,
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MX31_PIN_CONTRAST__CONTRAST,
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/* CSI */
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MX31_PIN_CSI_D6__CSI_D6,
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MX31_PIN_CSI_D7__CSI_D7,
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MX31_PIN_CSI_D8__CSI_D8,
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MX31_PIN_CSI_D9__CSI_D9,
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MX31_PIN_CSI_D10__CSI_D10,
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MX31_PIN_CSI_D11__CSI_D11,
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MX31_PIN_CSI_D12__CSI_D12,
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MX31_PIN_CSI_D13__CSI_D13,
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MX31_PIN_CSI_D14__CSI_D14,
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MX31_PIN_CSI_D15__CSI_D15,
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MX31_PIN_CSI_HSYNC__CSI_HSYNC,
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MX31_PIN_CSI_MCLK__CSI_MCLK,
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MX31_PIN_CSI_PIXCLK__CSI_PIXCLK,
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MX31_PIN_CSI_VSYNC__CSI_VSYNC,
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MX31_PIN_CSI_D5__GPIO3_5, /* CMOS PWDN */
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IOMUX_MODE(MX31_PIN_RI_DTE1, IOMUX_CONFIG_GPIO), /* CMOS reset */
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};
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/*
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* Camera support
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*/
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static phys_addr_t mx3_camera_base __initdata;
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#define MX31_3DS_CAMERA_BUF_SIZE SZ_8M
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#define MX31_3DS_GPIO_CAMERA_PW IOMUX_TO_GPIO(MX31_PIN_CSI_D5)
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#define MX31_3DS_GPIO_CAMERA_RST IOMUX_TO_GPIO(MX31_PIN_RI_DTE1)
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static struct gpio mx31_3ds_camera_gpios[] = {
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{ MX31_3DS_GPIO_CAMERA_PW, GPIOF_OUT_INIT_HIGH, "camera-power" },
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{ MX31_3DS_GPIO_CAMERA_RST, GPIOF_OUT_INIT_HIGH, "camera-reset" },
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};
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static int __init mx31_3ds_camera_alloc_dma(void)
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{
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int dma;
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if (!mx3_camera_base)
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return -ENOMEM;
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dma = dma_declare_coherent_memory(&mx3_camera.dev,
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mx3_camera_base, mx3_camera_base,
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MX31_3DS_CAMERA_BUF_SIZE,
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DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
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if (!(dma & DMA_MEMORY_MAP))
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return -ENOMEM;
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return 0;
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}
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static int mx31_3ds_camera_power(struct device *dev, int on)
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{
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/* enable or disable the camera */
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pr_debug("%s: %s the camera\n", __func__, on ? "ENABLE" : "DISABLE");
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gpio_set_value(MX31_3DS_GPIO_CAMERA_PW, on ? 0 : 1);
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if (!on)
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goto out;
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/* If enabled, give a reset impulse */
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gpio_set_value(MX31_3DS_GPIO_CAMERA_RST, 0);
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msleep(20);
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gpio_set_value(MX31_3DS_GPIO_CAMERA_RST, 1);
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msleep(100);
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out:
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return 0;
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}
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static struct i2c_board_info mx31_3ds_i2c_camera = {
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I2C_BOARD_INFO("ov2640", 0x30),
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};
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static struct regulator_bulk_data mx31_3ds_camera_regs[] = {
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{ .supply = "cmos_vcore" },
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{ .supply = "cmos_2v8" },
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};
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static struct soc_camera_link iclink_ov2640 = {
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.bus_id = 0,
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.board_info = &mx31_3ds_i2c_camera,
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.i2c_adapter_id = 0,
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.power = mx31_3ds_camera_power,
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.regulators = mx31_3ds_camera_regs,
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.num_regulators = ARRAY_SIZE(mx31_3ds_camera_regs),
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};
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static struct platform_device mx31_3ds_ov2640 = {
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.name = "soc-camera-pdrv",
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.id = 0,
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.dev = {
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.platform_data = &iclink_ov2640,
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},
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};
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struct mx3_camera_pdata mx31_3ds_camera_pdata = {
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.dma_dev = &mx3_ipu.dev,
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.flags = MX3_CAMERA_DATAWIDTH_10,
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.mclk_10khz = 2600,
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};
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/*
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@ -307,6 +411,7 @@ static struct regulator_init_data vmmc2_init = {
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static struct regulator_consumer_supply vmmc1_consumers[] = {
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REGULATOR_SUPPLY("lcd_2v8", NULL),
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REGULATOR_SUPPLY("cmos_2v8", "soc-camera-pdrv.0"),
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};
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static struct regulator_init_data vmmc1_init = {
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@ -337,6 +442,22 @@ static struct regulator_init_data vgen_init = {
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.consumer_supplies = vgen_consumers,
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};
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static struct regulator_consumer_supply vvib_consumers[] = {
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REGULATOR_SUPPLY("cmos_vcore", "soc-camera-pdrv.0"),
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};
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static struct regulator_init_data vvib_init = {
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.constraints = {
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.min_uV = 1300000,
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.max_uV = 1300000,
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.apply_uV = 1,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
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REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = ARRAY_SIZE(vvib_consumers),
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.consumer_supplies = vvib_consumers,
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};
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static struct mc13xxx_regulator_init_data mx31_3ds_regulators[] = {
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{
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.id = MC13783_REG_PWGT1SPI, /* Power Gate for ARM core. */
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@ -360,6 +481,9 @@ static struct mc13xxx_regulator_init_data mx31_3ds_regulators[] = {
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}, {
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.id = MC13783_REG_VGEN, /* Power LCD */
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.init_data = &vgen_init,
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}, {
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.id = MC13783_REG_VVIB, /* Power CMOS */
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.init_data = &vvib_init,
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},
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};
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@ -552,8 +676,14 @@ static const struct imxi2c_platform_data mx31_3ds_i2c0_data __initconst = {
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.bitrate = 100000,
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};
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static struct platform_device *devices[] __initdata = {
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&mx31_3ds_ov2640,
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};
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static void __init mx31_3ds_init(void)
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{
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int ret;
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mxc_iomux_setup_multiple_pins(mx31_3ds_pins, ARRAY_SIZE(mx31_3ds_pins),
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"mx31_3ds");
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@ -564,6 +694,8 @@ static void __init mx31_3ds_init(void)
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spi_register_board_info(mx31_3ds_spi_devs,
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ARRAY_SIZE(mx31_3ds_spi_devs));
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platform_add_devices(devices, ARRAY_SIZE(devices));
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imx31_add_imx_keypad(&mx31_3ds_keymap_data);
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mx31_3ds_usbotg_init();
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@ -591,6 +723,20 @@ static void __init mx31_3ds_init(void)
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imx31_add_spi_imx0(&spi0_pdata);
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mxc_register_device(&mx3_ipu, &mx3_ipu_data);
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mxc_register_device(&mx3_fb, &mx3fb_pdata);
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/* CSI */
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/* Camera power: default - off */
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ret = gpio_request_array(mx31_3ds_camera_gpios,
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ARRAY_SIZE(mx31_3ds_camera_gpios));
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if (ret) {
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pr_err("Failed to request camera gpios");
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iclink_ov2640.power = NULL;
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}
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if (!mx31_3ds_camera_alloc_dma())
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mxc_register_device(&mx3_camera, &mx31_3ds_camera_pdata);
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else
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pr_err("Failed to allocate dma memory for camera");
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}
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static void __init mx31_3ds_timer_init(void)
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@ -602,6 +748,15 @@ static struct sys_timer mx31_3ds_timer = {
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.init = mx31_3ds_timer_init,
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};
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static void __init mx31_3ds_reserve(void)
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{
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/* reserve MX31_3DS_CAMERA_BUF_SIZE bytes for mx3-camera */
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mx3_camera_base = memblock_alloc(MX31_3DS_CAMERA_BUF_SIZE,
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MX31_3DS_CAMERA_BUF_SIZE);
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memblock_free(mx3_camera_base, MX31_3DS_CAMERA_BUF_SIZE);
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memblock_remove(mx3_camera_base, MX31_3DS_CAMERA_BUF_SIZE);
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}
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MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
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/* Maintainer: Freescale Semiconductor, Inc. */
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.boot_params = MX3x_PHYS_OFFSET + 0x100,
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@ -610,4 +765,5 @@ MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
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.init_irq = mx31_init_irq,
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.timer = &mx31_3ds_timer,
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.init_machine = mx31_3ds_init,
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.reserve = mx31_3ds_reserve,
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MACHINE_END
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