s5pv210摄像头驱动问题

版主好，我最近在调试摄像头驱动！基本格式按照s5k4ba的驱动进行修改，硬件直接采用tiny210板子camera接口摄像头200W像素。
但是调试一直有如下错误：
s3c-fimc-0 : fimc_configure_subdev: v4l2 subdev board registering failed
s3c-fimc-0 : fimc_cropcap_capture: No capture device.
s3c-fimc-0 : fimc_s_fmt_vid_capture: No capture device.
如果用板子自带的ov9650则没有问题，跟踪发现在fimc_capture.c中的fimc_configure_subdev函数调用v4l2_i2c_new_subdev_board出错，
进入v4l2_i2c_new_subdev_board函数继续跟踪在该函数中
struct v4l2_subdev *v4l2_i2c_new_subdev_board(struct v4l2_device *v4l2_dev,
                struct i2c_adapter *adapter, const char *module_name,
                struct i2c_board_info *info, const unsigned short *probe_addrs)
{
        struct v4l2_subdev *sd = NULL;
        struct i2c_client *client;

        BUG_ON(!v4l2_dev);

        if (module_name)
                request_module(module_name);

        /* Create the i2c client */
        if (info->addr == 0 && probe_addrs)
                client = i2c_new_probed_device(adapter, info, probe_addrs);
        else
                client = i2c_new_device(adapter, info);

        /* Note: by loading the module first we are certain that c->driver
           will be set if the driver was found. If the module was not loaded
           first, then the i2c core tries to delay-load the module for us,
           and then c->driver is still NULL until the module is finally
           loaded. This delay-load mechanism doesn't work if other drivers
           want to use the i2c device, so explicitly loading the module
           is the best alternative. */
        if (client == NULL || client->driver == NULL)
                goto error;
该处出错，经过判断发现 client->driver == NULL为真，从而造成该函数执行失败！
    请教版主这个可能是什么问题造成client->driver为NULL呢？

版主 多指点呀！

友善的技术支持，你们能不能回复一下呀？

用ov9650没有问题说明硬件接口和kernel里摄像头驱动公共部分的代码是正常的
因此，个人认为应该是你的修改存在问题导致，看你提供的信息也没办法判断，建议你将你的修改详细的说明

我的修改内容如下：

不好意思，前几天不在，现在把我修改的内容贴出来，辛苦版主了，另外硬件上跟友善的板子是一样的

修改mach-mini210.c
填入内容:
#ifdef CONFIG_VIDEO_GT2015
#include <media/GT2015_platform.h>
#define CAM_ITU_CH_A
#endif
...............

static void set_cam2015_main_power(int onoff)
{
        printk("Set cam back state:%s\n",onoff?("on"):("off"));
        return ;
}
...............
#ifdef CONFIG_VIDEO_GT2015
static struct GT2015_platform_data GT2015_plat = {
        .default_width = 1280,
        .default_height = 1024,
        .pixelformat = V4L2_PIX_FMT_YUYV,
        .freq = 40000000,
        .is_mipi = 0,
};
static struct i2c_board_info GT2015_i2c_info = {
        I2C_BOARD_INFO("GT2015", 0x60>>1),
        .platform_data = &GT2015_plat,
};
static struct s3c_platform_camera GT2015 = {
        .id             = CAMERA_PAR_A,

        .type           = CAM_TYPE_ITU,
        .fmt            = ITU_601_YCBCR422_8BIT,
        .order422       = CAM_ORDER422_8BIT_YCBYCR,
        .i2c_busnum     = 0,
        .info           = &GT2015_i2c_info,
        .pixelformat    = V4L2_PIX_FMT_YUYV,
        .srclk_name     = "mout_mpll",
        .clk_name       = "sclk_cam1",
        .clk_rate       = 24000000,             /* 24MHz */
        .line_length    = 1920,              /* 640*480 */
        /* default resol for preview kind of thing */
        .width          = 1280,
        .height         = 1024,
        .window         = {
                .left   = 0,
                .top    = 0,
                .width  = 1280,
                .height = 1024,
        },
        /* Polarity */
        .inv_pclk       = 1,
        .inv_vsync      = 1,
        .inv_href       = 0,
        .inv_hsync      = 0,
        .initialized    = 0,
        .cam_power=set_cam2015_main_power
};
#endif

...........
static struct s3c_platform_fimc fimc_plat_lsi = {
............
#ifdef  CONFIG_VIDEO_GT2015//add by zzmy
                &GT2015,
#endif
...........
}


struct GT2015_platform_data {
        unsigned int default_width;
        unsigned int default_height;
        unsigned int pixelformat;
        int freq;       /* MCLK in KHz */

        /* This SoC supports Parallel & CSI-2 */
        int is_mipi;
};

初步看了一下，这一部分似乎是没有问题的
建议你先把
     &GT2015,  
注释掉
然后把
     &GT2015_i2c_info,
加到I2C里面，看看你的GT2015 I2C driver能不能正确的probe

谢谢版主，我试试看！

按照版主的建议我修改了代码了，测试发现I2c driver可以注册成功，然后用qtopia测试程序测试出现如下错误
s3c-fimc-0 : fimc_streamoff_capture: No capture info.奇怪，为什么用之前的方法不能注册I2c设备呢？
请版主多指点！

我说的这种方法主要是为了验证I2C部分是不是正常，是不是能正确的读/写寄存器
如果正常，那么再改回原来的，用qtopia测试程序，看看i2c driver的probe函数有没有调用

另外，我不是版主