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ACPI: video: Add dev argument for backlight_device_register

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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 <Luming.yu@intel.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Yu Luming 2006-12-19 12:56:15 -08:00 committed by Len Brown
parent f4715189df
commit 519ab5f2be
7 changed files with 13 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/acpi/asus_acpi.c
View File

@ -1402,7 +1402,7 @@ 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");

2
drivers/acpi/ibm_acpi.c
View File

@ -1714,7 +1714,7 @@ static struct backlight_properties ibm_backlight_data = {
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");

3
drivers/acpi/toshiba_acpi.c
View File

@ -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");

3
drivers/misc/msi-laptop.c
View File

@ -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);

2
drivers/usb/misc/appledisplay.c
View File

@ -283,7 +283,7 @@ static int appledisplay_probe(struct usb_interface *iface,
/* 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");

7
drivers/video/backlight/backlight.c
View File

@ -190,8 +190,10 @@ static int fb_notifier_callback(struct notifier_block *self,
* 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_device_register(const char *name, void *devda
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);

2
include/linux/backlight.h
View File

@ -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)