From: Yu Luming This patch set adds generic abstract layer support for acpi video driver to have generic user interface to control backlight and output switch control by leveraging the existing backlight sysfs class driver, and by adding a new video output sysfs class driver. This patch: Add dev argument for backlight_device_register to link the class device to real device object. The platform specific driver should find a way to get the real device object for their video device. [akpm@osdl.org: build fix] [akpm@osdl.org: fix msi-laptop.c] Signed-off-by: Luming Yu Cc: "Antonino A. Daplas" Cc: "Brown, Len" Cc: Greg KH Signed-off-by: Andrew Morton --- drivers/acpi/asus_acpi.c | 2 +- drivers/acpi/ibm_acpi.c | 2 +- drivers/acpi/toshiba_acpi.c | 3 ++- drivers/misc/msi-laptop.c | 3 ++- drivers/usb/misc/appledisplay.c | 2 +- drivers/video/backlight/backlight.c | 7 +++++-- include/linux/backlight.h | 2 +- 7 files changed, 13 insertions(+), 8 deletions(-) diff -puN drivers/acpi/asus_acpi.c~video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register drivers/acpi/asus_acpi.c --- a/drivers/acpi/asus_acpi.c~video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register +++ a/drivers/acpi/asus_acpi.c @@ -1400,7 +1400,7 @@ static int __init asus_acpi_init(void) return result; } - asus_backlight_device = backlight_device_register("asus", NULL, + asus_backlight_device = backlight_device_register("asus",NULL,NULL, &asus_backlight_data); if (IS_ERR(asus_backlight_device)) { printk(KERN_ERR "Could not register asus backlight device\n"); diff -puN drivers/acpi/ibm_acpi.c~video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register drivers/acpi/ibm_acpi.c --- a/drivers/acpi/ibm_acpi.c~video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register +++ a/drivers/acpi/ibm_acpi.c @@ -1714,7 +1714,7 @@ static struct backlight_properties ibm_b static int brightness_init(void) { - ibm_backlight_device = backlight_device_register("ibm", NULL, + ibm_backlight_device = backlight_device_register("ibm", NULL, NULL, &ibm_backlight_data); if (IS_ERR(ibm_backlight_device)) { printk(IBM_ERR "Could not register backlight device\n"); diff -puN drivers/acpi/toshiba_acpi.c~video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register drivers/acpi/toshiba_acpi.c --- a/drivers/acpi/toshiba_acpi.c~video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register +++ a/drivers/acpi/toshiba_acpi.c @@ -590,7 +590,8 @@ static int __init toshiba_acpi_init(void remove_proc_entry(PROC_TOSHIBA, acpi_root_dir); } - toshiba_backlight_device = backlight_device_register("toshiba", NULL, + toshiba_backlight_device = backlight_device_register("toshiba",NULL, + NULL, &toshiba_backlight_data); if (IS_ERR(toshiba_backlight_device)) { printk(KERN_ERR "Could not register toshiba backlight device\n"); diff -puN drivers/misc/msi-laptop.c~video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register drivers/misc/msi-laptop.c --- a/drivers/misc/msi-laptop.c~video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register +++ a/drivers/misc/msi-laptop.c @@ -317,7 +317,8 @@ static int __init msi_init(void) /* Register backlight stuff */ - msibl_device = backlight_device_register("msi-laptop-bl", NULL, &msibl_props); + msibl_device = backlight_device_register("msi-laptop-bl", NULL, NULL, + &msibl_props); if (IS_ERR(msibl_device)) return PTR_ERR(msibl_device); diff -puN drivers/usb/misc/appledisplay.c~video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register drivers/usb/misc/appledisplay.c --- a/drivers/usb/misc/appledisplay.c~video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register +++ a/drivers/usb/misc/appledisplay.c @@ -281,7 +281,7 @@ static int appledisplay_probe(struct usb /* Register backlight device */ snprintf(bl_name, sizeof(bl_name), "appledisplay%d", atomic_inc_return(&count_displays) - 1); - pdata->bd = backlight_device_register(bl_name, pdata, + pdata->bd = backlight_device_register(bl_name, NULL, NULL, &appledisplay_bl_data); if (IS_ERR(pdata->bd)) { err("appledisplay: Backlight registration failed"); diff -puN drivers/video/backlight/backlight.c~video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register drivers/video/backlight/backlight.c --- a/drivers/video/backlight/backlight.c~video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register +++ a/drivers/video/backlight/backlight.c @@ -190,8 +190,10 @@ static int fb_notifier_callback(struct n * Creates and registers new backlight class_device. Returns either an * ERR_PTR() or a pointer to the newly allocated device. */ -struct backlight_device *backlight_device_register(const char *name, void *devdata, - struct backlight_properties *bp) +struct backlight_device *backlight_device_register(const char *name, + struct device *dev, + void *devdata, + struct backlight_properties *bp) { int i, rc; struct backlight_device *new_bd; @@ -206,6 +208,7 @@ struct backlight_device *backlight_devic new_bd->props = bp; memset(&new_bd->class_dev, 0, sizeof(new_bd->class_dev)); new_bd->class_dev.class = &backlight_class; + new_bd->class_dev.dev = dev; strlcpy(new_bd->class_dev.class_id, name, KOBJ_NAME_LEN); class_set_devdata(&new_bd->class_dev, devdata); diff -puN include/linux/backlight.h~video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register include/linux/backlight.h --- a/include/linux/backlight.h~video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register +++ a/include/linux/backlight.h @@ -54,7 +54,7 @@ struct backlight_device { }; extern struct backlight_device *backlight_device_register(const char *name, - void *devdata, struct backlight_properties *bp); + struct device *dev,void *devdata,struct backlight_properties *bp); extern void backlight_device_unregister(struct backlight_device *bd); #define to_backlight_device(obj) container_of(obj, struct backlight_device, class_dev) _