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backlight: Allow properties to be passed at registration

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Values such as max_brightness should be set before backlights are
registered, but the current API doesn't allow that. Add a parameter to
backlight_device_register and update drivers to ensure that they
set this correctly.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
This commit is contained in:
Matthew Garrett 2010-02-17 16:39:44 -05:00 committed by Richard Purdie
parent 57e148b6a9
commit a19a6ee6ca
49 changed files with 271 additions and 151 deletions
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9
drivers/acpi/video.c
View File

@ -998,6 +998,7 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
}
if (acpi_video_backlight_support()) {
struct backlight_properties props;
int result;
static int count = 0;
char *name;
@ -1010,12 +1011,14 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
return;
sprintf(name, "acpi_video%d", count++);
device->backlight = backlight_device_register(name,
NULL, device, &acpi_backlight_ops);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = device->brightness->count - 3;
device->backlight = backlight_device_register(name, NULL, device,
&acpi_backlight_ops,
&props);
kfree(name);
if (IS_ERR(device->backlight))
return;
device->backlight->props.max_brightness = device->brightness->count-3;
result = sysfs_create_link(&device->backlight->dev.kobj,
&device->dev->dev.kobj, "device");

12
drivers/gpu/drm/nouveau/nouveau_backlight.c
View File

@ -89,19 +89,21 @@ static struct backlight_ops nv50_bl_ops = {
static int nouveau_nv40_backlight_init(struct drm_device *dev)
{
struct backlight_properties props;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct backlight_device *bd;
if (!(nv_rd32(dev, NV40_PMC_BACKLIGHT) & NV40_PMC_BACKLIGHT_MASK))
return 0;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = 31;
bd = backlight_device_register("nv_backlight", &dev->pdev->dev, dev,
&nv40_bl_ops);
&nv40_bl_ops, &props);
if (IS_ERR(bd))
return PTR_ERR(bd);
dev_priv->backlight = bd;
bd->props.max_brightness = 31;
bd->props.brightness = nv40_get_intensity(bd);
backlight_update_status(bd);
@ -110,19 +112,21 @@ static int nouveau_nv40_backlight_init(struct drm_device *dev)
static int nouveau_nv50_backlight_init(struct drm_device *dev)
{
struct backlight_properties props;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct backlight_device *bd;
if (!nv_rd32(dev, NV50_PDISPLAY_SOR_BACKLIGHT))
return 0;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = 1025;
bd = backlight_device_register("nv_backlight", &dev->pdev->dev, dev,
&nv50_bl_ops);
&nv50_bl_ops, &props);
if (IS_ERR(bd))
return PTR_ERR(bd);
dev_priv->backlight = bd;
bd->props.max_brightness = 1025;
bd->props.brightness = nv50_get_intensity(bd);
backlight_update_status(bd);
return 0;

7
drivers/macintosh/via-pmu-backlight.c
View File

@ -144,6 +144,7 @@ void pmu_backlight_set_sleep(int sleep)
void __init pmu_backlight_init()
{
struct backlight_properties props;
struct backlight_device *bd;
char name[10];
int level, autosave;
@ -161,13 +162,15 @@ void __init pmu_backlight_init()
snprintf(name, sizeof(name), "pmubl");
bd = backlight_device_register(name, NULL, NULL, &pmu_backlight_data);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
bd = backlight_device_register(name, NULL, NULL, &pmu_backlight_data,
&props);
if (IS_ERR(bd)) {
printk(KERN_ERR "PMU Backlight registration failed\n");
return;
}
uses_pmu_bl = 1;
bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
pmu_backlight_init_curve(0x7F, 0x46, 0x0E);
level = bd->props.max_brightness;

7
drivers/platform/x86/acer-wmi.c
View File

@ -922,9 +922,13 @@ static struct backlight_ops acer_bl_ops = {
static int __devinit acer_backlight_init(struct device *dev)
{
struct backlight_properties props;
struct backlight_device *bd;
bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = max_brightness;
bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
&props);
if (IS_ERR(bd)) {
printk(ACER_ERR "Could not register Acer backlight device\n");
acer_backlight_device = NULL;
@ -935,7 +939,6 @@ static int __devinit acer_backlight_init(struct device *dev)
bd->props.power = FB_BLANK_UNBLANK;
bd->props.brightness = read_brightness(bd);
bd->props.max_brightness = max_brightness;
backlight_update_status(bd);
return 0;
}

7
drivers/platform/x86/asus-laptop.c
View File

@ -639,12 +639,16 @@ static int asus_backlight_init(struct asus_laptop *asus)
{
struct backlight_device *bd;
struct device *dev = &asus->platform_device->dev;
struct backlight_properties props;
if (!acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_GET, NULL) &&
!acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL) &&
lcd_switch_handle) {
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = 15;
bd = backlight_device_register(ASUS_LAPTOP_FILE, dev,
asus, &asusbl_ops);
asus, &asusbl_ops, &props);
if (IS_ERR(bd)) {
pr_err("Could not register asus backlight device\n");
asus->backlight_device = NULL;
@ -653,7 +657,6 @@ static int asus_backlight_init(struct asus_laptop *asus)
asus->backlight_device = bd;
bd->props.max_brightness = 15;
bd->props.power = FB_BLANK_UNBLANK;
bd->props.brightness = asus_read_brightness(bd);
backlight_update_status(bd);

7
drivers/platform/x86/asus_acpi.c
View File

@ -1481,6 +1481,7 @@ static void asus_acpi_exit(void)
static int __init asus_acpi_init(void)
{
struct backlight_properties props;
int result;
result = acpi_bus_register_driver(&asus_hotk_driver);
@ -1507,15 +1508,17 @@ static int __init asus_acpi_init(void)
return -ENODEV;
}
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = 15;
asus_backlight_device = backlight_device_register("asus", NULL, NULL,
&asus_backlight_data);
&asus_backlight_data,
&props);
if (IS_ERR(asus_backlight_device)) {
printk(KERN_ERR "Could not register asus backlight device\n");
asus_backlight_device = NULL;
asus_acpi_exit();
return -ENODEV;
}
asus_backlight_device->props.max_brightness = 15;
return 0;
}

8
drivers/platform/x86/classmate-laptop.c
View File

@ -462,11 +462,13 @@ static struct backlight_ops cmpc_bl_ops = {
static int cmpc_bl_add(struct acpi_device *acpi)
{
struct backlight_properties props;
struct backlight_device *bd;
bd = backlight_device_register("cmpc_bl", &acpi->dev,
acpi->handle, &cmpc_bl_ops);
bd->props.max_brightness = 7;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = 7;
bd = backlight_device_register("cmpc_bl", &acpi->dev, acpi->handle,
&cmpc_bl_ops, &props);
dev_set_drvdata(&acpi->dev, bd);
return 0;
}

11
drivers/platform/x86/compal-laptop.c
View File

@ -291,12 +291,15 @@ static int __init compal_init(void)
/* Register backlight stuff */
if (!acpi_video_backlight_support()) {
compalbl_device = backlight_device_register("compal-laptop", NULL, NULL,
&compalbl_ops);
struct backlight_properties props;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = COMPAL_LCD_LEVEL_MAX - 1;
compalbl_device = backlight_device_register("compal-laptop",
NULL, NULL,
&compalbl_ops,
&props);
if (IS_ERR(compalbl_device))
return PTR_ERR(compalbl_device);
compalbl_device->props.max_brightness = COMPAL_LCD_LEVEL_MAX-1;
}
ret = platform_driver_register(&compal_driver);

13
drivers/platform/x86/dell-laptop.c
View File

@ -559,10 +559,14 @@ static int __init dell_init(void)
release_buffer();
if (max_intensity) {
dell_backlight_device = backlight_device_register(
"dell_backlight",
&platform_device->dev, NULL,
&dell_ops);
struct backlight_properties props;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = max_intensity;
dell_backlight_device = backlight_device_register("dell_backlight",
&platform_device->dev,
NULL,
&dell_ops,
&props);
if (IS_ERR(dell_backlight_device)) {
ret = PTR_ERR(dell_backlight_device);
@ -570,7 +574,6 @@ static int __init dell_init(void)
goto fail_backlight;
}
dell_backlight_device->props.max_brightness = max_intensity;
dell_backlight_device->props.brightness =
dell_get_intensity(dell_backlight_device);
backlight_update_status(dell_backlight_device);

8
drivers/platform/x86/eeepc-laptop.c
View File

@ -1131,18 +1131,20 @@ static int eeepc_backlight_notify(struct eeepc_laptop *eeepc)
static int eeepc_backlight_init(struct eeepc_laptop *eeepc)
{
struct backlight_properties props;
struct backlight_device *bd;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = 15;
bd = backlight_device_register(EEEPC_LAPTOP_FILE,
&eeepc->platform_device->dev,
eeepc, &eeepcbl_ops);
&eeepc->platform_device->dev, eeepc,
&eeepcbl_ops, &props);
if (IS_ERR(bd)) {
pr_err("Could not register eeepc backlight device\n");
eeepc->backlight_device = NULL;
return PTR_ERR(bd);
}
eeepc->backlight_device = bd;
bd->props.max_brightness = 15;
bd->props.brightness = read_brightness(bd);
bd->props.power = FB_BLANK_UNBLANK;
backlight_update_status(bd);

14
drivers/platform/x86/fujitsu-laptop.c
View File

@ -1126,16 +1126,20 @@ static int __init fujitsu_init(void)
/* Register backlight stuff */
if (!acpi_video_backlight_support()) {
fujitsu->bl_device =
backlight_device_register("fujitsu-laptop", NULL, NULL,
&fujitsubl_ops);
struct backlight_properties props;
memset(&props, 0, sizeof(struct backlight_properties));
max_brightness = fujitsu->max_brightness;
props.max_brightness = max_brightness - 1;
fujitsu->bl_device = backlight_device_register("fujitsu-laptop",
NULL, NULL,
&fujitsubl_ops,
&props);
if (IS_ERR(fujitsu->bl_device)) {
ret = PTR_ERR(fujitsu->bl_device);
fujitsu->bl_device = NULL;
goto fail_sysfs_group;
}
max_brightness = fujitsu->max_brightness;
fujitsu->bl_device->props.max_brightness = max_brightness - 1;
fujitsu->bl_device->props.brightness = fujitsu->brightness_level;
}

7
drivers/platform/x86/msi-laptop.c
View File

@ -683,11 +683,14 @@ static int __init msi_init(void)
printk(KERN_INFO "MSI: Brightness ignored, must be controlled "
"by ACPI video driver\n");
} else {
struct backlight_properties props;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = MSI_LCD_LEVEL_MAX - 1;
msibl_device = backlight_device_register("msi-laptop-bl", NULL,
NULL, &msibl_ops);
NULL, &msibl_ops,
&props);
if (IS_ERR(msibl_device))
return PTR_ERR(msibl_device);
msibl_device->props.max_brightness = MSI_LCD_LEVEL_MAX-1;
}
ret = platform_driver_register(&msipf_driver);

9
drivers/platform/x86/msi-wmi.c
View File

@ -249,12 +249,15 @@ static int __init msi_wmi_init(void)
goto err_uninstall_notifier;
if (!acpi_video_backlight_support()) {
backlight = backlight_device_register(DRV_NAME,
NULL, NULL, &msi_backlight_ops);
struct backlight_properties props;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = ARRAY_SIZE(backlight_map) - 1;
backlight = backlight_device_register(DRV_NAME, NULL, NULL,
&msi_backlight_ops,
&props);
if (IS_ERR(backlight))
goto err_free_input;
backlight->props.max_brightness = ARRAY_SIZE(backlight_map) - 1;
err = bl_get(NULL);
if (err < 0)
goto err_free_backlight;

24
drivers/platform/x86/panasonic-laptop.c
View File

@ -600,6 +600,7 @@ static int acpi_pcc_hotkey_resume(struct acpi_device *device)
static int acpi_pcc_hotkey_add(struct acpi_device *device)
{
struct backlight_properties props;
struct pcc_acpi *pcc;
int num_sifr, result;
@ -637,24 +638,23 @@ static int acpi_pcc_hotkey_add(struct acpi_device *device)
if (result) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Error installing keyinput handler\n"));
goto out_sinf;
goto out_hotkey;
}
/* initialize backlight */
pcc->backlight = backlight_device_register("panasonic", NULL, pcc,
&pcc_backlight_ops);
if (IS_ERR(pcc->backlight))
goto out_input;
if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Couldn't retrieve BIOS data\n"));
goto out_backlight;
goto out_input;
}
/* initialize backlight */
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = pcc->sinf[SINF_AC_MAX_BRIGHT];
pcc->backlight = backlight_device_register("panasonic", NULL, pcc,
&pcc_backlight_ops, &props);
if (IS_ERR(pcc->backlight))
goto out_sinf;
/* read the initial brightness setting from the hardware */
pcc->backlight->props.max_brightness =
pcc->sinf[SINF_AC_MAX_BRIGHT];
pcc->backlight->props.brightness = pcc->sinf[SINF_AC_CUR_BRIGHT];
/* read the initial sticky key mode from the hardware */
@ -669,12 +669,12 @@ static int acpi_pcc_hotkey_add(struct acpi_device *device)
out_backlight:
backlight_device_unregister(pcc->backlight);
out_sinf:
kfree(pcc->sinf);
out_input:
input_unregister_device(pcc->input_dev);
/* no need to input_free_device() since core input API refcount and
* free()s the device */
out_sinf:
kfree(pcc->sinf);
out_hotkey:
kfree(pcc);

8
drivers/platform/x86/sony-laptop.c
View File

@ -1291,9 +1291,13 @@ static int sony_nc_add(struct acpi_device *device)
"controlled by ACPI video driver\n");
} else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
&handle))) {
struct backlight_properties props;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = SONY_MAX_BRIGHTNESS - 1;
sony_backlight_device = backlight_device_register("sony", NULL,
NULL,
&sony_backlight_ops);
&sony_backlight_ops,
&props);
if (IS_ERR(sony_backlight_device)) {
printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
@ -1302,8 +1306,6 @@ static int sony_nc_add(struct acpi_device *device)
sony_backlight_device->props.brightness =
sony_backlight_get_brightness
(sony_backlight_device);
sony_backlight_device->props.max_brightness =
SONY_MAX_BRIGHTNESS - 1;
}
}

12
drivers/platform/x86/thinkpad_acpi.c
View File

@ -6170,6 +6170,7 @@ static const struct tpacpi_quirk brightness_quirk_table[] __initconst = {
static int __init brightness_init(struct ibm_init_struct *iibm)
{
struct backlight_properties props;
int b;
unsigned long quirks;
@ -6259,9 +6260,12 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
printk(TPACPI_INFO
"detected a 16-level brightness capable ThinkPad\n");
ibm_backlight_device = backlight_device_register(
TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL,
&ibm_backlight_data);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = (tp_features.bright_16levels) ? 15 : 7;
ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME,
NULL, NULL,
&ibm_backlight_data,
&props);
if (IS_ERR(ibm_backlight_device)) {
int rc = PTR_ERR(ibm_backlight_device);
ibm_backlight_device = NULL;
@ -6280,8 +6284,6 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
"or not on your ThinkPad\n", TPACPI_MAIL);
}
ibm_backlight_device->props.max_brightness =
(tp_features.bright_16levels)? 15 : 7;
ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK;
backlight_update_status(ibm_backlight_device);

10
drivers/platform/x86/toshiba_acpi.c
View File

@ -924,6 +924,7 @@ static int __init toshiba_acpi_init(void)
u32 hci_result;
bool bt_present;
int ret = 0;
struct backlight_properties props;
if (acpi_disabled)
return -ENODEV;
@ -974,10 +975,12 @@ static int __init toshiba_acpi_init(void)
}
}
props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
toshiba_backlight_device = backlight_device_register("toshiba",
&toshiba_acpi.p_dev->dev,
NULL,
&toshiba_backlight_data);
&toshiba_acpi.p_dev->dev,
NULL,
&toshiba_backlight_data,
&props);
if (IS_ERR(toshiba_backlight_device)) {
ret = PTR_ERR(toshiba_backlight_device);
@ -986,7 +989,6 @@ static int __init toshiba_acpi_init(void)
toshiba_acpi_exit();
return ret;
}
toshiba_backlight_device->props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
/* Register rfkill switch for Bluetooth */
if (hci_get_bt_present(&bt_present) == HCI_SUCCESS && bt_present) {

7
drivers/staging/samsung-laptop/samsung-laptop.c
View File

@ -394,6 +394,7 @@ MODULE_DEVICE_TABLE(dmi, samsung_dmi_table);
static int __init samsung_init(void)
{
struct backlight_properties props;
struct sabi_retval sretval;
const char *testStr = "SECLINUX";
void __iomem *memcheck;
@ -486,12 +487,14 @@ static int __init samsung_init(void)
goto error_no_platform;
/* create a backlight device to talk to this one */
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = MAX_BRIGHT;
backlight_device = backlight_device_register("samsung", &sdev->dev,
NULL, &backlight_ops);
NULL, &backlight_ops,
&props);
if (IS_ERR(backlight_device))
goto error_no_backlight;
backlight_device->props.max_brightness = MAX_BRIGHT;
backlight_device->props.brightness = read_brightness();
backlight_device->props.power = FB_BLANK_UNBLANK;
backlight_update_status(backlight_device);

7
drivers/usb/misc/appledisplay.c
View File

@ -202,6 +202,7 @@ static void appledisplay_work(struct work_struct *work)
static int appledisplay_probe(struct usb_interface *iface,
const struct usb_device_id *id)
{
struct backlight_properties props;
struct appledisplay *pdata;
struct usb_device *udev = interface_to_usbdev(iface);
struct usb_host_interface *iface_desc;
@ -279,16 +280,16 @@ 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);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = 0xff;
pdata->bd = backlight_device_register(bl_name, NULL, pdata,
&appledisplay_bl_data);
&appledisplay_bl_data, &props);
if (IS_ERR(pdata->bd)) {
dev_err(&iface->dev, "Backlight registration failed\n");
retval = PTR_ERR(pdata->bd);
goto error;
}
pdata->bd->props.max_brightness = 0xff;
/* Try to get brightness */
brightness = appledisplay_bl_get_brightness(pdata->bd);

8
drivers/video/atmel_lcdfb.c
View File

@ -117,6 +117,7 @@ static struct backlight_ops atmel_lcdc_bl_ops = {
static void init_backlight(struct atmel_lcdfb_info *sinfo)
{
struct backlight_properties props;
struct backlight_device *bl;
sinfo->bl_power = FB_BLANK_UNBLANK;
@ -124,8 +125,10 @@ static void init_backlight(struct atmel_lcdfb_info *sinfo)
if (sinfo->backlight)
return;
bl = backlight_device_register("backlight", &sinfo->pdev->dev,
sinfo, &atmel_lcdc_bl_ops);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = 0xff;
bl = backlight_device_register("backlight", &sinfo->pdev->dev, sinfo,
&atmel_lcdc_bl_ops, &props);
if (IS_ERR(bl)) {
dev_err(&sinfo->pdev->dev, "error %ld on backlight register\n",
PTR_ERR(bl));
@ -135,7 +138,6 @@ static void init_backlight(struct atmel_lcdfb_info *sinfo)
bl->props.power = FB_BLANK_UNBLANK;
bl->props.fb_blank = FB_BLANK_UNBLANK;
bl->props.max_brightness = 0xff;
bl->props.brightness = atmel_bl_get_brightness(bl);
}

7
drivers/video/aty/aty128fb.c
View File

@ -1802,6 +1802,7 @@ static void aty128_bl_set_power(struct fb_info *info, int power)
static void aty128_bl_init(struct aty128fb_par *par)
{
struct backlight_properties props;
struct fb_info *info = pci_get_drvdata(par->pdev);
struct backlight_device *bd;
char name[12];
@ -1817,7 +1818,10 @@ static void aty128_bl_init(struct aty128fb_par *par)
snprintf(name, sizeof(name), "aty128bl%d", info->node);
bd = backlight_device_register(name, info->dev, par, &aty128_bl_data);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
bd = backlight_device_register(name, info->dev, par, &aty128_bl_data,
&props);
if (IS_ERR(bd)) {
info->bl_dev = NULL;
printk(KERN_WARNING "aty128: Backlight registration failed\n");
@ -1829,7 +1833,6 @@ static void aty128_bl_init(struct aty128fb_par *par)
63 * FB_BACKLIGHT_MAX / MAX_LEVEL,
219 * FB_BACKLIGHT_MAX / MAX_LEVEL);
bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
bd->props.brightness = bd->props.max_brightness;
bd->props.power = FB_BLANK_UNBLANK;
backlight_update_status(bd);

7
drivers/video/aty/atyfb_base.c
View File

@ -2232,6 +2232,7 @@ static struct backlight_ops aty_bl_data = {
static void aty_bl_init(struct atyfb_par *par)
{
struct backlight_properties props;
struct fb_info *info = pci_get_drvdata(par->pdev);
struct backlight_device *bd;
char name[12];
@ -2243,7 +2244,10 @@ static void aty_bl_init(struct atyfb_par *par)
snprintf(name, sizeof(name), "atybl%d", info->node);
bd = backlight_device_register(name, info->dev, par, &aty_bl_data);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
bd = backlight_device_register(name, info->dev, par, &aty_bl_data,
&props);
if (IS_ERR(bd)) {
info->bl_dev = NULL;
printk(KERN_WARNING "aty: Backlight registration failed\n");
@ -2255,7 +2259,6 @@ static void aty_bl_init(struct atyfb_par *par)
0x3F * FB_BACKLIGHT_MAX / MAX_LEVEL,
0xFF * FB_BACKLIGHT_MAX / MAX_LEVEL);
bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
bd->props.brightness = bd->props.max_brightness;
bd->props.power = FB_BLANK_UNBLANK;
backlight_update_status(bd);

7
drivers/video/aty/radeon_backlight.c
View File

@ -134,6 +134,7 @@ static struct backlight_ops radeon_bl_data = {
void radeonfb_bl_init(struct radeonfb_info *rinfo)
{
struct backlight_properties props;
struct backlight_device *bd;
struct radeon_bl_privdata *pdata;
char name[12];
@ -155,7 +156,10 @@ void radeonfb_bl_init(struct radeonfb_info *rinfo)
snprintf(name, sizeof(name), "radeonbl%d", rinfo->info->node);
bd = backlight_device_register(name, rinfo->info->dev, pdata, &radeon_bl_data);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
bd = backlight_device_register(name, rinfo->info->dev, pdata,
&radeon_bl_data, &props);
if (IS_ERR(bd)) {
rinfo->info->bl_dev = NULL;
printk("radeonfb: Backlight registration failed\n");
@ -185,7 +189,6 @@ void radeonfb_bl_init(struct radeonfb_info *rinfo)
63 * FB_BACKLIGHT_MAX / MAX_RADEON_LEVEL,
217 * FB_BACKLIGHT_MAX / MAX_RADEON_LEVEL);
bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
bd->props.brightness = bd->props.max_brightness;
bd->props.power = FB_BLANK_UNBLANK;
backlight_update_status(bd);

6
drivers/video/backlight/88pm860x_bl.c
View File

@ -187,6 +187,7 @@ static int pm860x_backlight_probe(struct platform_device *pdev)
struct pm860x_backlight_data *data;
struct backlight_device *bl;
struct resource *res;
struct backlight_properties props;
unsigned char value;
char name[MFD_NAME_SIZE];
int ret;
@ -223,14 +224,15 @@ static int pm860x_backlight_probe(struct platform_device *pdev)
return -EINVAL;
}
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = MAX_BRIGHTNESS;
bl = backlight_device_register(name, &pdev->dev, data,
&pm860x_backlight_ops);
&pm860x_backlight_ops, &props);
if (IS_ERR(bl)) {
dev_err(&pdev->dev, "failed to register backlight\n");
kfree(data);
return PTR_ERR(bl);
}
bl->props.max_brightness = MAX_BRIGHTNESS;
bl->props.brightness = MAX_BRIGHTNESS;
platform_set_drvdata(pdev, bl);

11
drivers/video/backlight/adp5520_bl.c
View File

@ -278,6 +278,7 @@ static const struct attribute_group adp5520_bl_attr_group = {
static int __devinit adp5520_bl_probe(struct platform_device *pdev)
{
struct backlight_properties props;
struct backlight_device *bl;
struct adp5520_bl *data;
int ret = 0;
@ -300,17 +301,17 @@ static int __devinit adp5520_bl_probe(struct platform_device *pdev)
mutex_init(&data->lock);
bl = backlight_device_register(pdev->name, data->master,
data, &adp5520_bl_ops);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = ADP5020_MAX_BRIGHTNESS;
bl = backlight_device_register(pdev->name, data->master, data,
&adp5520_bl_ops, &props);
if (IS_ERR(bl)) {
dev_err(&pdev->dev, "failed to register backlight\n");
kfree(data);
return PTR_ERR(bl);
}
bl->props.max_brightness =
bl->props.brightness = ADP5020_MAX_BRIGHTNESS;
bl->props.brightness = ADP5020_MAX_BRIGHTNESS;
if (data->pdata->en_ambl_sens)
ret = sysfs_create_group(&bl->dev.kobj,
&adp5520_bl_attr_group);

8
drivers/video/backlight/adx_bl.c
View File

@ -70,6 +70,7 @@ static const struct backlight_ops adx_backlight_ops = {
static int __devinit adx_backlight_probe(struct platform_device *pdev)
{
struct backlight_properties props;
struct backlight_device *bldev;
struct resource *res;
struct adxbl *bl;
@ -101,14 +102,15 @@ static int __devinit adx_backlight_probe(struct platform_device *pdev)
goto out;
}
bldev = backlight_device_register(dev_name(&pdev->dev), &pdev->dev, bl,
&adx_backlight_ops);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = 0xff;
bldev = backlight_device_register(dev_name(&pdev->dev), &pdev->dev,
bl, &adx_backlight_ops, &props);
if (!bldev) {
ret = -ENOMEM;
goto out;
}
bldev->props.max_brightness = 0xff;
bldev->props.brightness = 0xff;
bldev->props.power = FB_BLANK_UNBLANK;

8
drivers/video/backlight/atmel-pwm-bl.c
View File

@ -120,6 +120,7 @@ static const struct backlight_ops atmel_pwm_bl_ops = {
static int atmel_pwm_bl_probe(struct platform_device *pdev)
{
struct backlight_properties props;
const struct atmel_pwm_bl_platform_data *pdata;
struct backlight_device *bldev;
struct atmel_pwm_bl *pwmbl;
@ -165,8 +166,10 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
goto err_free_gpio;
}
bldev = backlight_device_register("atmel-pwm-bl",
&pdev->dev, pwmbl, &atmel_pwm_bl_ops);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = pdata->pwm_duty_max - pdata->pwm_duty_min;
bldev = backlight_device_register("atmel-pwm-bl", &pdev->dev, pwmbl,
&atmel_pwm_bl_ops, &props);
if (IS_ERR(bldev)) {
retval = PTR_ERR(bldev);
goto err_free_gpio;
@ -178,7 +181,6 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
/* Power up the backlight by default at middle intesity. */
bldev->props.power = FB_BLANK_UNBLANK;
bldev->props.max_brightness = pdata->pwm_duty_max - pdata->pwm_duty_min;
bldev->props.brightness = bldev->props.max_brightness / 2;
retval = atmel_pwm_bl_init_pwm(pwmbl);

8
drivers/video/backlight/backlight.c
View File

@ -269,7 +269,8 @@ EXPORT_SYMBOL(backlight_force_update);
* ERR_PTR() or a pointer to the newly allocated device.
*/
struct backlight_device *backlight_device_register(const char *name,
struct device *parent, void *devdata, const struct backlight_ops *ops)
struct device *parent, void *devdata, const struct backlight_ops *ops,
const struct backlight_properties *props)
{
struct backlight_device *new_bd;
int rc;
@ -289,6 +290,11 @@ struct backlight_device *backlight_device_register(const char *name,
dev_set_name(&new_bd->dev, name);
dev_set_drvdata(&new_bd->dev, devdata);
/* Set default properties */
if (props)
memcpy(&new_bd->props, props,
sizeof(struct backlight_properties));
rc = device_register(&new_bd->dev);
if (rc) {
kfree(new_bd);

8
drivers/video/backlight/corgi_lcd.c
View File

@ -533,6 +533,7 @@ static int setup_gpio_backlight(struct corgi_lcd *lcd,
static int __devinit corgi_lcd_probe(struct spi_device *spi)
{
struct backlight_properties props;
struct corgi_lcd_platform_data *pdata = spi->dev.platform_data;
struct corgi_lcd *lcd;
int ret = 0;
@ -559,13 +560,14 @@ static int __devinit corgi_lcd_probe(struct spi_device *spi)
lcd->power = FB_BLANK_POWERDOWN;
lcd->mode = (pdata) ? pdata->init_mode : CORGI_LCD_MODE_VGA;
lcd->bl_dev = backlight_device_register("corgi_bl", &spi->dev,
lcd, &corgi_bl_ops);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = pdata->max_intensity;
lcd->bl_dev = backlight_device_register("corgi_bl", &spi->dev, lcd,
&corgi_bl_ops, &props);
if (IS_ERR(lcd->bl_dev)) {
ret = PTR_ERR(lcd->bl_dev);
goto err_unregister_lcd;
}
lcd->bl_dev->props.max_brightness = pdata->max_intensity;
lcd->bl_dev->props.brightness = pdata->default_intensity;
lcd->bl_dev->props.power = FB_BLANK_UNBLANK;

8
drivers/video/backlight/cr_bllcd.c
View File

@ -170,6 +170,7 @@ static struct lcd_ops cr_lcd_ops = {
static int cr_backlight_probe(struct platform_device *pdev)
{
struct backlight_properties props;
struct backlight_device *bdp;
struct lcd_device *ldp;
struct cr_panel *crp;
@ -190,8 +191,9 @@ static int cr_backlight_probe(struct platform_device *pdev)
return -ENODEV;
}
bdp = backlight_device_register("cr-backlight",
&pdev->dev, NULL, &cr_backlight_ops);
memset(&props, 0, sizeof(struct backlight_properties));
bdp = backlight_device_register("cr-backlight", &pdev->dev, NULL,
&cr_backlight_ops, &props);
if (IS_ERR(bdp)) {
pci_dev_put(lpc_dev);
return PTR_ERR(bdp);
@ -220,9 +222,7 @@ static int cr_backlight_probe(struct platform_device *pdev)
crp->cr_lcd_device = ldp;
crp->cr_backlight_device->props.power = FB_BLANK_UNBLANK;
crp->cr_backlight_device->props.brightness = 0;
crp->cr_backlight_device->props.max_brightness = 0;
cr_backlight_set_intensity(crp->cr_backlight_device);
cr_lcd_set_power(crp->cr_lcd_device, FB_BLANK_UNBLANK);
platform_set_drvdata(pdev, crp);

7
drivers/video/backlight/da903x_bl.c
View File

@ -105,6 +105,7 @@ static int da903x_backlight_probe(struct platform_device *pdev)
struct da9034_backlight_pdata *pdata = pdev->dev.platform_data;
struct da903x_backlight_data *data;
struct backlight_device *bl;
struct backlight_properties props;
int max_brightness;
data = kzalloc(sizeof(*data), GFP_KERNEL);
@ -134,15 +135,15 @@ static int da903x_backlight_probe(struct platform_device *pdev)
da903x_write(data->da903x_dev, DA9034_WLED_CONTROL2,
DA9034_WLED_ISET(pdata->output_current));
bl = backlight_device_register(pdev->name, data->da903x_dev,
data, &da903x_backlight_ops);
props.max_brightness = max_brightness;
bl = backlight_device_register(pdev->name, data->da903x_dev, data,
&da903x_backlight_ops, &props);
if (IS_ERR(bl)) {
dev_err(&pdev->dev, "failed to register backlight\n");
kfree(data);
return PTR_ERR(bl);
}
bl->props.max_brightness = max_brightness;
bl->props.brightness = max_brightness;
platform_set_drvdata(pdev, bl);

8
drivers/video/backlight/generic_bl.c
View File

@ -78,6 +78,7 @@ static const struct backlight_ops genericbl_ops = {
static int genericbl_probe(struct platform_device *pdev)
{
struct backlight_properties props;
struct generic_bl_info *machinfo = pdev->dev.platform_data;
const char *name = "generic-bl";
struct backlight_device *bd;
@ -89,14 +90,15 @@ static int genericbl_probe(struct platform_device *pdev)
if (machinfo->name)
name = machinfo->name;
bd = backlight_device_register (name,
&pdev->dev, NULL, &genericbl_ops);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = machinfo->max_intensity;
bd = backlight_device_register(name, &pdev->dev, NULL, &genericbl_ops,
&props);
if (IS_ERR (bd))
return PTR_ERR (bd);
platform_set_drvdata(pdev, bd);
bd->props.max_brightness = machinfo->max_intensity;
bd->props.power = FB_BLANK_UNBLANK;
bd->props.brightness = machinfo->default_intensity;
backlight_update_status(bd);

8
drivers/video/backlight/hp680_bl.c
View File

@ -105,16 +105,18 @@ static const struct backlight_ops hp680bl_ops = {
static int __devinit hp680bl_probe(struct platform_device *pdev)
{
struct backlight_properties props;
struct backlight_device *bd;
bd = backlight_device_register ("hp680-bl", &pdev->dev, NULL,
&hp680bl_ops);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = HP680_MAX_INTENSITY;
bd = backlight_device_register("hp680-bl", &pdev->dev, NULL,
&hp680bl_ops, &props);
if (IS_ERR(bd))
return PTR_ERR(bd);
platform_set_drvdata(pdev, bd);
bd->props.max_brightness = HP680_MAX_INTENSITY;
bd->props.brightness = HP680_DEFAULT_INTENSITY;
hp680bl_send_intensity(bd);

7
drivers/video/backlight/jornada720_bl.c
View File

@ -101,10 +101,14 @@ static const struct backlight_ops jornada_bl_ops = {
static int jornada_bl_probe(struct platform_device *pdev)
{
struct backlight_properties props;
int ret;
struct backlight_device *bd;
bd = backlight_device_register(S1D_DEVICENAME, &pdev->dev, NULL, &jornada_bl_ops);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = BL_MAX_BRIGHT;
bd = backlight_device_register(S1D_DEVICENAME, &pdev->dev, NULL,
&jornada_bl_ops, &props);
if (IS_ERR(bd)) {
ret = PTR_ERR(bd);
@ -117,7 +121,6 @@ static int jornada_bl_probe(struct platform_device *pdev)
/* note. make sure max brightness is set otherwise
you will get seemingly non-related errors when
trying to change brightness */
bd->props.max_brightness = BL_MAX_BRIGHT;
jornada_bl_update_status(bd);
platform_set_drvdata(pdev, bd);

8
drivers/video/backlight/kb3886_bl.c
View File

@ -141,20 +141,24 @@ static const struct backlight_ops kb3886bl_ops = {
static int kb3886bl_probe(struct platform_device *pdev)
{
struct backlight_properties props;
struct kb3886bl_machinfo *machinfo = pdev->dev.platform_data;
bl_machinfo = machinfo;
if (!machinfo->limit_mask)
machinfo->limit_mask = -1;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = machinfo->max_intensity;
kb3886_backlight_device = backlight_device_register("kb3886-bl",
&pdev->dev, NULL, &kb3886bl_ops);
&pdev->dev, NULL,
&kb3886bl_ops,
&props);
if (IS_ERR(kb3886_backlight_device))
return PTR_ERR(kb3886_backlight_device);
platform_set_drvdata(pdev, kb3886_backlight_device);
kb3886_backlight_device->props.max_brightness = machinfo->max_intensity;
kb3886_backlight_device->props.power = FB_BLANK_UNBLANK;
kb3886_backlight_device->props.brightness = machinfo->default_intensity;
backlight_update_status(kb3886_backlight_device);

8
drivers/video/backlight/locomolcd.c
View File

@ -167,6 +167,7 @@ static int locomolcd_resume(struct locomo_dev *dev)
static int locomolcd_probe(struct locomo_dev *ldev)
{
struct backlight_properties props;
unsigned long flags;
local_irq_save(flags);
@ -182,13 +183,16 @@ static int locomolcd_probe(struct locomo_dev *ldev)
local_irq_restore(flags);
locomolcd_bl_device = backlight_device_register("locomo-bl", &ldev->dev, NULL, &locomobl_data);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = 4;
locomolcd_bl_device = backlight_device_register("locomo-bl",
&ldev->dev, NULL,
&locomobl_data, &props);
if (IS_ERR (locomolcd_bl_device))
return PTR_ERR (locomolcd_bl_device);
/* Set up frontlight so that screen is readable */
locomolcd_bl_device->props.max_brightness = 4,
locomolcd_bl_device->props.brightness = 2;
locomolcd_set_intensity(locomolcd_bl_device);

6
drivers/video/backlight/max8925_bl.c
View File

@ -104,6 +104,7 @@ static int __devinit max8925_backlight_probe(struct platform_device *pdev)
struct max8925_backlight_pdata *pdata = NULL;
struct max8925_backlight_data *data;
struct backlight_device *bl;
struct backlight_properties props;
struct resource *res;
char name[MAX8925_NAME_SIZE];
unsigned char value;
@ -133,14 +134,15 @@ static int __devinit max8925_backlight_probe(struct platform_device *pdev)
data->chip = chip;
data->current_brightness = 0;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = MAX_BRIGHTNESS;
bl = backlight_device_register(name, &pdev->dev, data,
&max8925_backlight_ops);
&max8925_backlight_ops, &props);
if (IS_ERR(bl)) {
dev_err(&pdev->dev, "failed to register backlight\n");
kfree(data);
return PTR_ERR(bl);
}
bl->props.max_brightness = MAX_BRIGHTNESS;
bl->props.brightness = MAX_BRIGHTNESS;
platform_set_drvdata(pdev, bl);

10
drivers/video/backlight/mbp_nvidia_bl.c
View File

@ -250,6 +250,7 @@ static const struct dmi_system_id __initdata mbp_device_table[] = {
static int __init mbp_init(void)
{
struct backlight_properties props;
if (!dmi_check_system(mbp_device_table))
return -ENODEV;
@ -257,14 +258,17 @@ static int __init mbp_init(void)
"Macbook Pro backlight"))
return -ENXIO;
mbp_backlight_device = backlight_device_register("mbp_backlight",
NULL, NULL, &driver_data->backlight_ops);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = 15;
mbp_backlight_device = backlight_device_register("mbp_backlight", NULL,
NULL,
&driver_data->backlight_ops,
&props);
if (IS_ERR(mbp_backlight_device)) {
release_region(driver_data->iostart, driver_data->iolen);
return PTR_ERR(mbp_backlight_device);
}
mbp_backlight_device->props.max_brightness = 15;
mbp_backlight_device->props.brightness =
driver_data->backlight_ops.get_brightness(mbp_backlight_device);
backlight_update_status(mbp_backlight_device);

7
drivers/video/backlight/omap1_bl.c
View File

@ -132,6 +132,7 @@ static const struct backlight_ops omapbl_ops = {
static int omapbl_probe(struct platform_device *pdev)
{
struct backlight_properties props;
struct backlight_device *dev;
struct omap_backlight *bl;
struct omap_backlight_config *pdata = pdev->dev.platform_data;
@ -143,7 +144,10 @@ static int omapbl_probe(struct platform_device *pdev)
if (unlikely(!bl))
return -ENOMEM;
dev = backlight_device_register("omap-bl", &pdev->dev, bl, &omapbl_ops);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = OMAPBL_MAX_INTENSITY;
dev = backlight_device_register("omap-bl", &pdev->dev, bl, &omapbl_ops,
&props);
if (IS_ERR(dev)) {
kfree(bl);
return PTR_ERR(dev);
@ -160,7 +164,6 @@ static int omapbl_probe(struct platform_device *pdev)
omap_cfg_reg(PWL); /* Conflicts with UART3 */
dev->props.fb_blank = FB_BLANK_UNBLANK;
dev->props.max_brightness = OMAPBL_MAX_INTENSITY;
dev->props.brightness = pdata->default_intensity;
omapbl_update_status(dev);

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

@ -61,6 +61,7 @@ static const struct backlight_ops progearbl_ops = {
static int progearbl_probe(struct platform_device *pdev)
{
struct backlight_properties props;
u8 temp;
struct backlight_device *progear_backlight_device;
int ret;
@ -82,9 +83,12 @@ static int progearbl_probe(struct platform_device *pdev)
pci_read_config_byte(sb_dev, SB_MPS1, &temp);
pci_write_config_byte(sb_dev, SB_MPS1, temp | 0x20);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = HW_LEVEL_MAX - HW_LEVEL_MIN;
progear_backlight_device = backlight_device_register("progear-bl",
&pdev->dev, NULL,
&progearbl_ops);
&progearbl_ops,
&props);
if (IS_ERR(progear_backlight_device)) {
ret = PTR_ERR(progear_backlight_device);
goto put_sb;
@ -94,7 +98,6 @@ static int progearbl_probe(struct platform_device *pdev)
progear_backlight_device->props.power = FB_BLANK_UNBLANK;
progear_backlight_device->props.brightness = HW_LEVEL_MAX - HW_LEVEL_MIN;
progear_backlight_device->props.max_brightness = HW_LEVEL_MAX - HW_LEVEL_MIN;
progearbl_set_intensity(progear_backlight_device);
return 0;

8
drivers/video/backlight/pwm_bl.c
View File

@ -65,6 +65,7 @@ static const struct backlight_ops pwm_backlight_ops = {
static int pwm_backlight_probe(struct platform_device *pdev)
{
struct backlight_properties props;
struct platform_pwm_backlight_data *data = pdev->dev.platform_data;
struct backlight_device *bl;
struct pwm_bl_data *pb;
@ -100,15 +101,16 @@ static int pwm_backlight_probe(struct platform_device *pdev)
} else
dev_dbg(&pdev->dev, "got pwm for backlight\n");
bl = backlight_device_register(dev_name(&pdev->dev), &pdev->dev,
pb, &pwm_backlight_ops);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = data->max_brightness;
bl = backlight_device_register(dev_name(&pdev->dev), &pdev->dev, pb,
&pwm_backlight_ops, &props);
if (IS_ERR(bl)) {
dev_err(&pdev->dev, "failed to register backlight\n");
ret = PTR_ERR(bl);
goto err_bl;
}
bl->props.max_brightness = data->max_brightness;
bl->props.brightness = data->dft_brightness;
backlight_update_status(bl);

8
drivers/video/backlight/tosa_bl.c
View File

@ -80,6 +80,7 @@ static const struct backlight_ops bl_ops = {
static int __devinit tosa_bl_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct backlight_properties props;
struct tosa_bl_data *data = kzalloc(sizeof(struct tosa_bl_data), GFP_KERNEL);
int ret = 0;
if (!data)
@ -99,15 +100,16 @@ static int __devinit tosa_bl_probe(struct i2c_client *client,
i2c_set_clientdata(client, data);
data->i2c = client;
data->bl = backlight_device_register("tosa-bl", &client->dev,
data, &bl_ops);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = 512 - 1;
data->bl = backlight_device_register("tosa-bl", &client->dev, data,
&bl_ops, &props);
if (IS_ERR(data->bl)) {
ret = PTR_ERR(data->bl);
goto err_reg;
}
data->bl->props.brightness = 69;
data->bl->props.max_brightness = 512 - 1;
data->bl->props.power = FB_BLANK_UNBLANK;
backlight_update_status(data->bl);

7
drivers/video/backlight/wm831x_bl.c
View File

@ -125,6 +125,7 @@ static int wm831x_backlight_probe(struct platform_device *pdev)
struct wm831x_backlight_pdata *pdata;
struct wm831x_backlight_data *data;
struct backlight_device *bl;
struct backlight_properties props;
int ret, i, max_isel, isink_reg, dcdc_cfg;
/* We need platform data */
@ -191,15 +192,15 @@ static int wm831x_backlight_probe(struct platform_device *pdev)
data->current_brightness = 0;
data->isink_reg = isink_reg;
bl = backlight_device_register("wm831x", &pdev->dev,
data, &wm831x_backlight_ops);
props.max_brightness = max_isel;
bl = backlight_device_register("wm831x", &pdev->dev, data,
&wm831x_backlight_ops, &props);
if (IS_ERR(bl)) {
dev_err(&pdev->dev, "failed to register backlight\n");
kfree(data);
return PTR_ERR(bl);
}
bl->props.max_brightness = max_isel;
bl->props.brightness = max_isel;
platform_set_drvdata(pdev, bl);

9
drivers/video/bf54x-lq043fb.c
View File

@ -501,6 +501,7 @@ static irqreturn_t bfin_bf54x_irq_error(int irq, void *dev_id)
static int __devinit bfin_bf54x_probe(struct platform_device *pdev)
{
struct backlight_properties props;
struct bfin_bf54xfb_info *info;
struct fb_info *fbinfo;
int ret;
@ -645,10 +646,10 @@ static int __devinit bfin_bf54x_probe(struct platform_device *pdev)
goto out8;
}
#ifndef NO_BL_SUPPORT
bl_dev =
backlight_device_register("bf54x-bl", NULL, NULL,
&bfin_lq043fb_bl_ops);
bl_dev->props.max_brightness = 255;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = 255;
bl_dev = backlight_device_register("bf54x-bl", NULL, NULL,
&bfin_lq043fb_bl_ops, &props);
lcd_dev = lcd_device_register(DRIVER_NAME, &pdev->dev, NULL, &bfin_lcd_ops);
lcd_dev->props.max_contrast = 255, printk(KERN_INFO "Done.\n");

9
drivers/video/bfin-t350mcqb-fb.c
View File

@ -419,6 +419,7 @@ static irqreturn_t bfin_t350mcqb_irq_error(int irq, void *dev_id)
static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev)
{
struct backlight_properties props;
struct bfin_t350mcqbfb_info *info;
struct fb_info *fbinfo;
int ret;
@ -540,10 +541,10 @@ static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev)
goto out8;
}
#ifndef NO_BL_SUPPORT
bl_dev =
backlight_device_register("bf52x-bl", NULL, NULL,
&bfin_lq043fb_bl_ops);
bl_dev->props.max_brightness = 255;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = 255;
bl_dev = backlight_device_register("bf52x-bl", NULL, NULL,
&bfin_lq043fb_bl_ops, &props);
lcd_dev = lcd_device_register(DRIVER_NAME, NULL, &bfin_lcd_ops);
lcd_dev->props.max_contrast = 255, printk(KERN_INFO "Done.\n");

7
drivers/video/nvidia/nv_backlight.c
View File

@ -94,6 +94,7 @@ static struct backlight_ops nvidia_bl_ops = {
void nvidia_bl_init(struct nvidia_par *par)
{
struct backlight_properties props;
struct fb_info *info = pci_get_drvdata(par->pci_dev);
struct backlight_device *bd;
char name[12];
@ -109,7 +110,10 @@ void nvidia_bl_init(struct nvidia_par *par)
snprintf(name, sizeof(name), "nvidiabl%d", info->node);
bd = backlight_device_register(name, info->dev, par, &nvidia_bl_ops);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
bd = backlight_device_register(name, info->dev, par, &nvidia_bl_ops,
&props);
if (IS_ERR(bd)) {
info->bl_dev = NULL;
printk(KERN_WARNING "nvidia: Backlight registration failed\n");
@ -121,7 +125,6 @@ void nvidia_bl_init(struct nvidia_par *par)
0x158 * FB_BACKLIGHT_MAX / MAX_LEVEL,
0x534 * FB_BACKLIGHT_MAX / MAX_LEVEL);
bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
bd->props.brightness = bd->props.max_brightness;
bd->props.power = FB_BLANK_UNBLANK;
backlight_update_status(bd);

15
drivers/video/omap2/displays/panel-taal.c
View File

@ -486,6 +486,7 @@ static struct attribute_group taal_attr_group = {
static int taal_probe(struct omap_dss_device *dssdev)
{
struct backlight_properties props;
struct taal_data *td;
struct backlight_device *bldev;
int r;
@ -520,11 +521,16 @@ static int taal_probe(struct omap_dss_device *dssdev)
/* if no platform set_backlight() defined, presume DSI backlight
* control */
memset(&props, 0, sizeof(struct backlight_properties));
if (!dssdev->set_backlight)
td->use_dsi_bl = true;
if (td->use_dsi_bl)
props.max_brightness = 255;
else
props.max_brightness = 127;
bldev = backlight_device_register("taal", &dssdev->dev, dssdev,
&taal_bl_ops);
&taal_bl_ops, &props);
if (IS_ERR(bldev)) {
r = PTR_ERR(bldev);
goto err2;
@ -534,13 +540,10 @@ static int taal_probe(struct omap_dss_device *dssdev)
bldev->props.fb_blank = FB_BLANK_UNBLANK;
bldev->props.power = FB_BLANK_UNBLANK;
if (td->use_dsi_bl) {
bldev->props.max_brightness = 255;
if (td->use_dsi_bl)
bldev->props.brightness = 255;
} else {
bldev->props.max_brightness = 127;
else
bldev->props.brightness = 127;
}
taal_bl_update_status(bldev);

7
drivers/video/riva/fbdev.c
View File

@ -338,6 +338,7 @@ static struct backlight_ops riva_bl_ops = {
static void riva_bl_init(struct riva_par *par)
{
struct backlight_properties props;
struct fb_info *info = pci_get_drvdata(par->pdev);
struct backlight_device *bd;
char name[12];
@ -353,7 +354,10 @@ static void riva_bl_init(struct riva_par *par)
snprintf(name, sizeof(name), "rivabl%d", info->node);
bd = backlight_device_register(name, info->dev, par, &riva_bl_ops);
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
bd = backlight_device_register(name, info->dev, par, &riva_bl_ops,
&props);
if (IS_ERR(bd)) {
info->bl_dev = NULL;
printk(KERN_WARNING "riva: Backlight registration failed\n");
@ -365,7 +369,6 @@ static void riva_bl_init(struct riva_par *par)
MIN_LEVEL * FB_BACKLIGHT_MAX / MAX_LEVEL,
FB_BACKLIGHT_MAX);
bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
bd->props.brightness = bd->props.max_brightness;
bd->props.power = FB_BLANK_UNBLANK;
backlight_update_status(bd);

3
include/linux/backlight.h
View File

@ -103,7 +103,8 @@ static inline void backlight_update_status(struct backlight_device *bd)
}
extern struct backlight_device *backlight_device_register(const char *name,
struct device *dev, void *devdata, const struct backlight_ops *ops);
struct device *dev, void *devdata, const struct backlight_ops *ops,
const struct backlight_properties *props);
extern void backlight_device_unregister(struct backlight_device *bd);
extern void backlight_force_update(struct backlight_device *bd,
enum backlight_update_reason reason);