Hi Antonio
Still one more nitpick:
On Wed, 11 Nov 2009, Antonio Ospite wrote:
> Signed-off-by: Bart Visscher <ba...@thisnet.nl>
> Signed-off-by: Antonio Ospite <osp...@studenti.unina.it>
>
> ---
> Changes since v2:
>
> - Bart's SOB goes first, as he is the original author.
> - Add MFP_LPM_DRIVE_HIGH to camera gpios, as per Motorola original
> code.
> - s/pxacamera/camera/ in function names, as they are not used in
> pxacamera_platform_data
> - Adjust comments about CAM_RST which is active on rising edge
> - Saner default values for nCAM_EN and CAM_RST gpios
> - Setup gpios statically at board init.
>
> Eric, if it is easier for you I can send the three patches together again.
>
> Thanks,
> Antonio
>
> arch/arm/mach-pxa/ezx.c | 172 +++++++++++++++++++++++++++++++++++++++++++++-
> 1 files changed, 168 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm/mach-pxa/ezx.c b/arch/arm/mach-pxa/ezx.c
> index 588b265..74423a6 100644
> --- a/arch/arm/mach-pxa/ezx.c
> +++ b/arch/arm/mach-pxa/ezx.c
> @@ -17,8 +17,11 @@
> #include <linux/delay.h>
> #include <linux/pwm_backlight.h>
> #include <linux/input.h>
> +#include <linux/gpio.h>
> #include <linux/gpio_keys.h>
>
> +#include <media/soc_camera.h>
> +
> #include <asm/setup.h>
> #include <asm/mach-types.h>
> #include <asm/mach/arch.h>
> @@ -29,6 +32,7 @@
> #include <plat/i2c.h>
> #include <mach/hardware.h>
> #include <mach/pxa27x_keypad.h>
> +#include <mach/camera.h>
>
> #include "devices.h"
> #include "generic.h"
> @@ -38,6 +42,9 @@
> #define GPIO15_A910_FLIP_LID 15
> #define GPIO12_E680_LOCK_SWITCH 12
> #define GPIO15_E6_LOCK_SWITCH 15
> +#define GPIO50_nCAM_EN 50
> +#define GPIO19_GEN1_CAM_RST 19
> +#define GPIO28_GEN2_CAM_RST 28
>
> static struct platform_pwm_backlight_data ezx_backlight_data = {
> .pwm_id = 0,
> @@ -191,8 +198,8 @@ static unsigned long gen1_pin_config[] __initdata = {
> GPIO94_CIF_DD_5,
> GPIO17_CIF_DD_6,
> GPIO108_CIF_DD_7,
> - GPIO50_GPIO, /* CAM_EN */
> - GPIO19_GPIO, /* CAM_RST */
> + GPIO50_GPIO | MFP_LPM_DRIVE_HIGH, /* CAM_EN */
> + GPIO19_GPIO | MFP_LPM_DRIVE_HIGH, /* CAM_RST */
>
> /* EMU */
> GPIO120_GPIO, /* EMU_MUX1 */
> @@ -248,8 +255,8 @@ static unsigned long gen2_pin_config[] __initdata = {
> GPIO48_CIF_DD_5,
> GPIO93_CIF_DD_6,
> GPIO12_CIF_DD_7,
> - GPIO50_GPIO, /* CAM_EN */
> - GPIO28_GPIO, /* CAM_RST */
> + GPIO50_GPIO | MFP_LPM_DRIVE_HIGH, /* CAM_EN */
> + GPIO28_GPIO | MFP_LPM_DRIVE_HIGH, /* CAM_RST */
> GPIO17_GPIO, /* CAM_FLASH */
> };
> #endif
> @@ -683,8 +690,84 @@ static struct platform_device a780_gpio_keys = {
> },
> };
>
> +/* camera */
> +static int a780_camera_init(void)
This function returns an error but...
> +{
> + int err;
> +
> + /*
> + * GPIO50_nCAM_EN is active low
> + * GPIO19_GEN1_CAM_RST is active on rising edge
> + */
> + err = gpio_request(GPIO50_nCAM_EN, "nCAM_EN");
> + if (err) {
> + pr_err("%s: Failed to request nCAM_EN\n", __func__);
> + goto fail;
> + }
> +
> + err = gpio_request(GPIO19_GEN1_CAM_RST, "CAM_RST");
> + if (err) {
> + pr_err("%s: Failed to request CAM_RST\n", __func__);
> + goto fail_gpio_cam_rst;
> + }
> +
> + gpio_direction_output(GPIO50_nCAM_EN, 1);
> + gpio_direction_output(GPIO19_GEN1_CAM_RST, 0);
> +
> + return 0;
> +
> +fail_gpio_cam_rst:
> + gpio_free(GPIO50_nCAM_EN);
> +fail:
> + return err;
> +}
> +
> +static int a780_camera_power(struct device *dev, int on)
> +{
> + gpio_set_value(GPIO50_nCAM_EN, !on);
> + return 0;
> +}
> +
> +static int a780_camera_reset(struct device *dev)
> +{
> + gpio_set_value(GPIO19_GEN1_CAM_RST, 0);
> + msleep(10);
> + gpio_set_value(GPIO19_GEN1_CAM_RST, 1);
> +
> + return 0;
> +}
> +
> +struct pxacamera_platform_data a780_pxacamera_platform_data = {
> + .flags = PXA_CAMERA_MASTER | PXA_CAMERA_DATAWIDTH_8 |
> + PXA_CAMERA_PCLK_EN | PXA_CAMERA_MCLK_EN,
> + .mclk_10khz = 5000,
> +};
> +
> +static struct i2c_board_info a780_camera_i2c_board_info = {
> + I2C_BOARD_INFO("mt9m111", 0x5d),
> +};
> +
> +static struct soc_camera_link a780_iclink = {
> + .bus_id = 0,
> + .flags = SOCAM_SENSOR_INVERT_PCLK,
> + .i2c_adapter_id = 0,
> + .board_info = &a780_camera_i2c_board_info,
> + .module_name = "mt9m111",
> + .power = a780_camera_power,
> + .reset = a780_camera_reset,
> +};
> +
> +static struct platform_device a780_camera = {
> + .name = "soc-camera-pdrv",
> + .id = 0,
> + .dev = {
> + .platform_data = &a780_iclink,
> + },
> +};
> +
> static struct platform_device *a780_devices[] __initdata = {
> &a780_gpio_keys,
> + &a780_camera,
> };
>
> static void __init a780_init(void)
> @@ -699,6 +782,9 @@ static void __init a780_init(void)
>
> pxa_set_keypad_info(&a780_keypad_platform_data);
>
> + a780_camera_init();
...it is not used. So, I would either make it void, or check the return
code, and maybe even not register the camera since it's going to be
useless anyway? Same for a910.
> + pxa_set_camera_info(&a780_pxacamera_platform_data);
> +
> platform_add_devices(ARRAY_AND_SIZE(ezx_devices));
> platform_add_devices(ARRAY_AND_SIZE(a780_devices));
> }
> @@ -864,8 +950,83 @@ static struct platform_device a910_gpio_keys = {
> },
> };
>
> +/* camera */
> +static int a910_camera_init(void)
> +{
> + int err;
> +
> + /*
> + * GPIO50_nCAM_EN is active low
> + * GPIO28_GEN2_CAM_RST is active on rising edge
> + */
> + err = gpio_request(GPIO50_nCAM_EN, "nCAM_EN");
> + if (err) {
> + pr_err("%s: Failed to request nCAM_EN\n", __func__);
> + goto fail;
> + }
> +
> + err = gpio_request(GPIO28_GEN2_CAM_RST, "CAM_RST");
> + if (err) {
> + pr_err("%s: Failed to request CAM_RST\n", __func__);
> + goto fail_gpio_cam_rst;
> + }
> +
> + gpio_direction_output(GPIO50_nCAM_EN, 1);
> + gpio_direction_output(GPIO28_GEN2_CAM_RST, 0);
> +
> + return 0;
> +
> +fail_gpio_cam_rst:
> + gpio_free(GPIO50_nCAM_EN);
> +fail:
> + return err;
> +}
> +
> +static int a910_camera_power(struct device *dev, int on)
> +{
> + gpio_set_value(GPIO50_nCAM_EN, !on);
> + return 0;
> +}
> +
> +static int a910_camera_reset(struct device *dev)
> +{
> + gpio_set_value(GPIO28_GEN2_CAM_RST, 0);
> + msleep(10);
> + gpio_set_value(GPIO28_GEN2_CAM_RST, 1);
> +
> + return 0;
> +}
> +
> +struct pxacamera_platform_data a910_pxacamera_platform_data = {
> + .flags = PXA_CAMERA_MASTER | PXA_CAMERA_DATAWIDTH_8 |
> + PXA_CAMERA_PCLK_EN | PXA_CAMERA_MCLK_EN,
> + .mclk_10khz = 5000,
> +};
> +
> +static struct i2c_board_info a910_camera_i2c_board_info = {
> + I2C_BOARD_INFO("mt9m111", 0x5d),
> +};
> +
> +static struct soc_camera_link a910_iclink = {
> + .bus_id = 0,
> + .i2c_adapter_id = 0,
> + .board_info = &a910_camera_i2c_board_info,
> + .module_name = "mt9m111",
> + .power = a910_camera_power,
> + .reset = a910_camera_reset,
> +};
> +
> +static struct platform_device a910_camera = {
> + .name = "soc-camera-pdrv",
> + .id = 0,
> + .dev = {
> + .platform_data = &a910_iclink,
> + },
> +};
> +
> static struct platform_device *a910_devices[] __initdata = {
> &a910_gpio_keys,
> + &a910_camera,
> };
>
> static void __init a910_init(void)
> @@ -880,6 +1041,9 @@ static void __init a910_init(void)
>
> pxa_set_keypad_info(&a910_keypad_platform_data);
>
> + a910_camera_init();
> + pxa_set_camera_info(&a910_pxacamera_platform_data);
> +
> platform_add_devices(ARRAY_AND_SIZE(ezx_devices));
> platform_add_devices(ARRAY_AND_SIZE(a910_devices));
> }
> --
> tg: (639a58f..) ezx/mach/camera_new (depends on: master)
>
Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/
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