problems with backlight

["Luís Cargnini" <lvcargnini@gmail.com>]

Dear fellows,
I had the following problems compiling for omap with omap backlight enabled,
the following error:
make
  CHK     include/linux/version.h
make[1]: `include/asm-arm/mach-types.h' is up to date.
  CHK     include/linux/utsrelease.h
  CALL    scripts/checksyscalls.sh
<stdin>:1097:2: warning: #warning syscall fadvise64 not implemented
<stdin>:1265:2: warning: #warning syscall migrate_pages not implemented
<stdin>:1321:2: warning: #warning syscall pselect6 not implemented
<stdin>:1325:2: warning: #warning syscall ppoll not implemented
<stdin>:1365:2: warning: #warning syscall epoll_pwait not implemented
<stdin>:1385:2: warning: #warning syscall fallocate not implemented
  CHK     include/linux/compile.h
  CC [M]  drivers/video/backlight/omap_bl.o
drivers/video/backlight/omap_bl.c: In function 'omapbl_suspend':
drivers/video/backlight/omap_bl.c:79: error: 'struct backlight_device' has
no member named 'class_dev'
drivers/video/backlight/omap_bl.c: In function 'omapbl_resume':
drivers/video/backlight/omap_bl.c:88: error: 'struct backlight_device' has
no member named 'class_dev'
drivers/video/backlight/omap_bl.c: In function 'omapbl_set_power':
drivers/video/backlight/omap_bl.c:100: error: 'struct backlight_device' has
no member named 'class_dev'
drivers/video/backlight/omap_bl.c: In function 'omapbl_update_status':
drivers/video/backlight/omap_bl.c:110: error: 'struct backlight_device' has
no member named 'class_dev'
drivers/video/backlight/omap_bl.c: In function 'omapbl_get_intensity':
drivers/video/backlight/omap_bl.c:130: error: 'struct backlight_device' has
no member named 'class_dev'
drivers/video/backlight/omap_bl.c: In function 'omapbl_remove':
drivers/video/backlight/omap_bl.c:185: error: 'struct backlight_device' has
no member named 'class_dev'
make[3]: *** [drivers/video/backlight/omap_bl.o] Error 1
make[2]: *** [drivers/video/backlight] Error 2
make[1]: *** [drivers/video] Error 2
make: *** [drivers] Error 2

looking he source code:
struct omap_backlight {
    int powermode;
    int current_intensity;

    struct device *dev;
    struct omap_backlight_config *pdata;
};


but :
#ifdef CONFIG_PM
static int omapbl_suspend(struct platform_device *pdev, pm_message_t state)
{
    struct backlight_device *dev = platform_get_drvdata(pdev);
    struct omap_backlight *bl = class_get_devdata(&dev->class_dev);

    omapbl_blank(bl, FB_BLANK_POWERDOWN);
    return 0;
}

someone have figured this problem before ?
can I make the fix ?
There is no fix, no problem I'm just creating one ?

-- 
------------------------------------------------------------------------------
Thanks && Regards
Msc. Bsc. Luís Vitório Cargnini
IEEE Member
Electrical Engineer Faculty @ PUCRS
Ipiranga Avenue, 6681 – Building 30
P.O. Box: 90619-900 – Porto Alegre/RS
Phone: +55 51 3320 3500  extension: 7696
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