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backlight: add backlight type
There may be multiple ways of controlling the backlight on a given machine. Allow drivers to expose the type of interface they are providing, making it possible for userspace to make appropriate policy decisions. Signed-off-by: Matthew Garrett <mjg@redhat.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: David Airlie <airlied@linux.ie> Cc: Alex Deucher <alexdeucher@gmail.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Len Brown <lenb@kernel.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -34,3 +34,23 @@ Contact: Richard Purdie <rpurdie@rpsys.net>
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Description:
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Maximum brightness for <backlight>.
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Users: HAL
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What: /sys/class/backlight/<backlight>/type
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Date: September 2010
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KernelVersion: 2.6.37
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Contact: Matthew Garrett <mjg@redhat.com>
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Description:
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The type of interface controlled by <backlight>.
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"firmware": The driver uses a standard firmware interface
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"platform": The driver uses a platform-specific interface
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"raw": The driver controls hardware registers directly
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In the general case, when multiple backlight
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interfaces are available for a single device, firmware
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control should be preferred to platform control should
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be preferred to raw control. Using a firmware
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interface reduces the probability of confusion with
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the hardware and the OS independently updating the
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backlight state. Platform interfaces are mostly a
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holdover from pre-standardisation of firmware
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interfaces.
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@ -795,6 +795,7 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
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count++;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_FIRMWARE;
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props.max_brightness = device->brightness->count - 3;
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device->backlight = backlight_device_register(name, NULL, device,
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&acpi_backlight_ops,
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@ -98,6 +98,7 @@ static int nouveau_nv40_backlight_init(struct drm_device *dev)
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return 0;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_RAW;
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props.max_brightness = 31;
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bd = backlight_device_register("nv_backlight", &dev->pdev->dev, dev,
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&nv40_bl_ops, &props);
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@ -121,6 +122,7 @@ static int nouveau_nv50_backlight_init(struct drm_device *dev)
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return 0;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_RAW;
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props.max_brightness = 1025;
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bd = backlight_device_register("nv_backlight", &dev->pdev->dev, dev,
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&nv50_bl_ops, &props);
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@ -944,6 +944,7 @@ static int picolcd_init_backlight(struct picolcd_data *data, struct hid_report *
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}
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memset(&props, 0, sizeof(props));
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props.type = BACKLIGHT_RAW;
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props.max_brightness = 0xff;
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bdev = backlight_device_register(dev_name(dev), dev, data,
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&picolcd_blops, &props);
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@ -163,6 +163,7 @@ void __init pmu_backlight_init()
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snprintf(name, sizeof(name), "pmubl");
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_PLATFORM;
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props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
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bd = backlight_device_register(name, NULL, NULL, &pmu_backlight_data,
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&props);
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@ -1031,6 +1031,7 @@ static int __devinit acer_backlight_init(struct device *dev)
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struct backlight_device *bd;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_PLATFORM;
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props.max_brightness = max_brightness;
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bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
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&props);
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@ -667,6 +667,7 @@ static int asus_backlight_init(struct asus_laptop *asus)
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memset(&props, 0, sizeof(struct backlight_properties));
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props.max_brightness = 15;
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props.type = BACKLIGHT_PLATFORM;
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bd = backlight_device_register(ASUS_LAPTOP_FILE,
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&asus->platform_device->dev, asus,
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@ -1507,6 +1507,7 @@ static int __init asus_acpi_init(void)
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}
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_PLATFORM;
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props.max_brightness = 15;
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asus_backlight_device = backlight_device_register("asus", NULL, NULL,
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&asus_backlight_data,
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@ -564,6 +564,7 @@ static int cmpc_ipml_add(struct acpi_device *acpi)
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return -ENOMEM;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_PLATFORM;
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props.max_brightness = 7;
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ipml->bd = backlight_device_register("cmpc_bl", &acpi->dev,
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acpi->handle, &cmpc_bl_ops,
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@ -970,6 +970,7 @@ static int __init compal_init(void)
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if (!acpi_video_backlight_support()) {
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struct backlight_properties props;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_PLATFORM;
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props.max_brightness = BACKLIGHT_LEVEL_MAX;
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compalbl_device = backlight_device_register(DRIVER_NAME,
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NULL, NULL,
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@ -671,6 +671,7 @@ static int __init dell_init(void)
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if (max_intensity) {
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struct backlight_properties props;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_PLATFORM;
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props.max_brightness = max_intensity;
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dell_backlight_device = backlight_device_register("dell_backlight",
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&platform_device->dev,
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@ -1147,6 +1147,7 @@ static int eeepc_backlight_init(struct eeepc_laptop *eeepc)
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struct backlight_device *bd;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_PLATFORM;
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props.max_brightness = 15;
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bd = backlight_device_register(EEEPC_LAPTOP_FILE,
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&eeepc->platform_device->dev, eeepc,
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@ -1128,6 +1128,7 @@ static int __init fujitsu_init(void)
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memset(&props, 0, sizeof(struct backlight_properties));
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max_brightness = fujitsu->max_brightness;
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props.type = BACKLIGHT_PLATFORM;
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props.max_brightness = max_brightness - 1;
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fujitsu->bl_device = backlight_device_register("fujitsu-laptop",
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NULL, NULL,
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@ -804,6 +804,7 @@ static int __init msi_init(void)
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} else {
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struct backlight_properties props;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_PLATFORM;
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props.max_brightness = MSI_LCD_LEVEL_MAX - 1;
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msibl_device = backlight_device_register("msi-laptop-bl", NULL,
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NULL, &msibl_ops,
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@ -254,6 +254,7 @@ static int __init msi_wmi_init(void)
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if (!acpi_video_backlight_support()) {
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struct backlight_properties props;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_PLATFORM;
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props.max_brightness = ARRAY_SIZE(backlight_map) - 1;
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backlight = backlight_device_register(DRV_NAME, NULL, NULL,
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&msi_backlight_ops,
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@ -602,6 +602,7 @@ static int acpi_pcc_hotkey_add(struct acpi_device *device)
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}
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/* initialize backlight */
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_PLATFORM;
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props.max_brightness = pcc->sinf[SINF_AC_MAX_BRIGHT];
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pcc->backlight = backlight_device_register("panasonic", NULL, pcc,
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&pcc_backlight_ops, &props);
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@ -1305,8 +1305,9 @@ static int sony_nc_add(struct acpi_device *device)
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"controlled by ACPI video driver\n");
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} else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
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&handle))) {
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struct backlight_properties props;
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struct backlight_properties props;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_PLATFORM;
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props.max_brightness = SONY_MAX_BRIGHTNESS - 1;
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sony_backlight_device = backlight_device_register("sony", NULL,
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NULL,
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@ -6307,6 +6307,7 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
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return 1;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_PLATFORM;
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props.max_brightness = bright_maxlvl;
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props.brightness = b & TP_EC_BACKLIGHT_LVLMSK;
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ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME,
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@ -1018,6 +1018,7 @@ static int __init toshiba_acpi_init(void)
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create_toshiba_proc_entries();
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}
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props.type = BACKLIGHT_PLATFORM;
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props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
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toshiba_backlight_device = backlight_device_register("toshiba",
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&toshiba_acpi.p_dev->dev,
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@ -574,6 +574,7 @@ static const struct backlight_ops dcon_bl_ops = {
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static struct backlight_properties dcon_bl_props = {
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.max_brightness = 15,
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.type = BACKLIGHT_RAW,
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.power = FB_BLANK_UNBLANK,
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};
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@ -781,6 +781,7 @@ static int __init samsung_init(void)
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/* create a backlight device to talk to this one */
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_PLATFORM;
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props.max_brightness = sabi_config->max_brightness;
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backlight_device = backlight_device_register("samsung", &sdev->dev,
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NULL, &backlight_ops,
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@ -282,6 +282,7 @@ static int appledisplay_probe(struct usb_interface *iface,
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snprintf(bl_name, sizeof(bl_name), "appledisplay%d",
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atomic_inc_return(&count_displays) - 1);
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_RAW;
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props.max_brightness = 0xff;
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pdata->bd = backlight_device_register(bl_name, NULL, pdata,
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&appledisplay_bl_data, &props);
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@ -127,6 +127,7 @@ static void init_backlight(struct atmel_lcdfb_info *sinfo)
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return;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_RAW;
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props.max_brightness = 0xff;
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bl = backlight_device_register("backlight", &sinfo->pdev->dev, sinfo,
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&atmel_lcdc_bl_ops, &props);
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@ -1818,6 +1818,7 @@ static void aty128_bl_init(struct aty128fb_par *par)
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snprintf(name, sizeof(name), "aty128bl%d", info->node);
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_RAW;
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props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
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bd = backlight_device_register(name, info->dev, par, &aty128_bl_data,
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&props);
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@ -2241,6 +2241,7 @@ static void aty_bl_init(struct atyfb_par *par)
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snprintf(name, sizeof(name), "atybl%d", info->node);
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_RAW;
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props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
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bd = backlight_device_register(name, info->dev, par, &aty_bl_data,
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&props);
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@ -158,6 +158,7 @@ void radeonfb_bl_init(struct radeonfb_info *rinfo)
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snprintf(name, sizeof(name), "radeonbl%d", rinfo->info->node);
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_RAW;
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props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
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bd = backlight_device_register(name, rinfo->info->dev, pdata,
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&radeon_bl_data, &props);
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@ -227,6 +227,7 @@ static int pm860x_backlight_probe(struct platform_device *pdev)
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}
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_RAW;
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props.max_brightness = MAX_BRIGHTNESS;
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bl = backlight_device_register(name, &pdev->dev, data,
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&pm860x_backlight_ops, &props);
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@ -303,6 +303,7 @@ static int __devinit adp5520_bl_probe(struct platform_device *pdev)
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mutex_init(&data->lock);
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_RAW;
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props.max_brightness = ADP5020_MAX_BRIGHTNESS;
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bl = backlight_device_register(pdev->name, data->master, data,
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&adp5520_bl_ops, &props);
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@ -709,6 +709,7 @@ static int __devinit adp8860_probe(struct i2c_client *client,
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i2c_set_clientdata(client, data);
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memset(&props, 0, sizeof(props));
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props.type = BACKLIGHT_RAW;
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props.max_brightness = ADP8860_MAX_BRIGHTNESS;
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mutex_init(&data->lock);
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@ -104,6 +104,7 @@ static int __devinit adx_backlight_probe(struct platform_device *pdev)
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}
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_RAW;
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props.max_brightness = 0xff;
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bldev = backlight_device_register(dev_name(&pdev->dev), &pdev->dev,
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bl, &adx_backlight_ops, &props);
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@ -168,6 +168,7 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
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}
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_RAW;
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props.max_brightness = pdata->pwm_duty_max - pdata->pwm_duty_min;
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bldev = backlight_device_register("atmel-pwm-bl", &pdev->dev, pwmbl,
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&atmel_pwm_bl_ops, &props);
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@ -19,6 +19,12 @@
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#include <asm/backlight.h>
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#endif
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static const char const *backlight_types[] = {
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[BACKLIGHT_RAW] = "raw",
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[BACKLIGHT_PLATFORM] = "platform",
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[BACKLIGHT_FIRMWARE] = "firmware",
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};
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#if defined(CONFIG_FB) || (defined(CONFIG_FB_MODULE) && \
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defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE))
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/* This callback gets called when something important happens inside a
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@ -169,6 +175,14 @@ static ssize_t backlight_store_brightness(struct device *dev,
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return rc;
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}
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static ssize_t backlight_show_type(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct backlight_device *bd = to_backlight_device(dev);
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return sprintf(buf, "%s\n", backlight_types[bd->props.type]);
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}
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static ssize_t backlight_show_max_brightness(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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@ -234,6 +248,7 @@ static struct device_attribute bl_device_attributes[] = {
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__ATTR(actual_brightness, 0444, backlight_show_actual_brightness,
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NULL),
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__ATTR(max_brightness, 0444, backlight_show_max_brightness, NULL),
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__ATTR(type, 0444, backlight_show_type, NULL),
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__ATTR_NULL,
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};
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@ -292,9 +307,16 @@ struct backlight_device *backlight_device_register(const char *name,
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dev_set_drvdata(&new_bd->dev, devdata);
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/* Set default properties */
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if (props)
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if (props) {
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memcpy(&new_bd->props, props,
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sizeof(struct backlight_properties));
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if (props->type <= 0 || props->type >= BACKLIGHT_TYPE_MAX) {
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WARN(1, "%s: invalid backlight type", name);
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new_bd->props.type = BACKLIGHT_RAW;
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}
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} else {
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new_bd->props.type = BACKLIGHT_RAW;
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}
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rc = device_register(&new_bd->dev);
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if (rc) {
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@ -562,6 +562,7 @@ static int __devinit corgi_lcd_probe(struct spi_device *spi)
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lcd->mode = (pdata) ? pdata->init_mode : CORGI_LCD_MODE_VGA;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_RAW;
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props.max_brightness = pdata->max_intensity;
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lcd->bl_dev = backlight_device_register("corgi_bl", &spi->dev, lcd,
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&corgi_bl_ops, &props);
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@ -193,6 +193,7 @@ static int cr_backlight_probe(struct platform_device *pdev)
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}
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_RAW;
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bdp = backlight_device_register("cr-backlight", &pdev->dev, NULL,
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&cr_backlight_ops, &props);
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if (IS_ERR(bdp)) {
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@ -136,6 +136,7 @@ static int da903x_backlight_probe(struct platform_device *pdev)
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da903x_write(data->da903x_dev, DA9034_WLED_CONTROL2,
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DA9034_WLED_ISET(pdata->output_current));
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props.type = BACKLIGHT_RAW;
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props.max_brightness = max_brightness;
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bl = backlight_device_register(pdev->name, data->da903x_dev, data,
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&da903x_backlight_ops, &props);
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@ -87,6 +87,7 @@ static int __init ep93xxbl_probe(struct platform_device *dev)
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ep93xxbl->mmio = EP93XX_RASTER_BRIGHTNESS;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_RAW;
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props.max_brightness = EP93XX_MAX_BRIGHT;
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bl = backlight_device_register(dev->name, &dev->dev, ep93xxbl,
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&ep93xxbl_ops, &props);
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@ -91,6 +91,7 @@ static int genericbl_probe(struct platform_device *pdev)
|
||||
name = machinfo->name;
|
||||
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.type = BACKLIGHT_RAW;
|
||||
props.max_brightness = machinfo->max_intensity;
|
||||
bd = backlight_device_register(name, &pdev->dev, NULL, &genericbl_ops,
|
||||
&props);
|
||||
|
@ -109,6 +109,7 @@ static int __devinit hp680bl_probe(struct platform_device *pdev)
|
||||
struct backlight_device *bd;
|
||||
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.type = BACKLIGHT_RAW;
|
||||
props.max_brightness = HP680_MAX_INTENSITY;
|
||||
bd = backlight_device_register("hp680-bl", &pdev->dev, NULL,
|
||||
&hp680bl_ops, &props);
|
||||
|
@ -106,6 +106,7 @@ static int jornada_bl_probe(struct platform_device *pdev)
|
||||
struct backlight_device *bd;
|
||||
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.type = BACKLIGHT_RAW;
|
||||
props.max_brightness = BL_MAX_BRIGHT;
|
||||
bd = backlight_device_register(S1D_DEVICENAME, &pdev->dev, NULL,
|
||||
&jornada_bl_ops, &props);
|
||||
|
@ -149,6 +149,7 @@ static int kb3886bl_probe(struct platform_device *pdev)
|
||||
machinfo->limit_mask = -1;
|
||||
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.type = BACKLIGHT_RAW;
|
||||
props.max_brightness = machinfo->max_intensity;
|
||||
kb3886_backlight_device = backlight_device_register("kb3886-bl",
|
||||
&pdev->dev, NULL,
|
||||
|
@ -184,6 +184,7 @@ static int locomolcd_probe(struct locomo_dev *ldev)
|
||||
local_irq_restore(flags);
|
||||
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.type = BACKLIGHT_RAW;
|
||||
props.max_brightness = 4;
|
||||
locomolcd_bl_device = backlight_device_register("locomo-bl",
|
||||
&ldev->dev, NULL,
|
||||
|
@ -136,6 +136,7 @@ static int __devinit max8925_backlight_probe(struct platform_device *pdev)
|
||||
data->current_brightness = 0;
|
||||
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.type = BACKLIGHT_RAW;
|
||||
props.max_brightness = MAX_BRIGHTNESS;
|
||||
bl = backlight_device_register(name, &pdev->dev, data,
|
||||
&max8925_backlight_ops, &props);
|
||||
|
@ -367,6 +367,7 @@ static int __init mbp_init(void)
|
||||
return -ENXIO;
|
||||
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.type = BACKLIGHT_PLATFORM;
|
||||
props.max_brightness = 15;
|
||||
mbp_backlight_device = backlight_device_register("mbp_backlight", NULL,
|
||||
NULL,
|
||||
|
@ -146,6 +146,7 @@ static int omapbl_probe(struct platform_device *pdev)
|
||||
return -ENOMEM;
|
||||
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.type = BACKLIGHT_RAW;
|
||||
props.max_brightness = OMAPBL_MAX_INTENSITY;
|
||||
dev = backlight_device_register("omap-bl", &pdev->dev, bl, &omapbl_ops,
|
||||
&props);
|
||||
|
@ -112,6 +112,7 @@ static int __devinit pcf50633_bl_probe(struct platform_device *pdev)
|
||||
if (!pcf_bl)
|
||||
return -ENOMEM;
|
||||
|
||||
bl_props.type = BACKLIGHT_RAW;
|
||||
bl_props.max_brightness = 0x3f;
|
||||
bl_props.power = FB_BLANK_UNBLANK;
|
||||
|
||||
|
@ -84,6 +84,7 @@ static int progearbl_probe(struct platform_device *pdev)
|
||||
pci_write_config_byte(sb_dev, SB_MPS1, temp | 0x20);
|
||||
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.type = BACKLIGHT_RAW;
|
||||
props.max_brightness = HW_LEVEL_MAX - HW_LEVEL_MIN;
|
||||
progear_backlight_device = backlight_device_register("progear-bl",
|
||||
&pdev->dev, NULL,
|
||||
|
@ -108,6 +108,7 @@ static int pwm_backlight_probe(struct platform_device *pdev)
|
||||
dev_dbg(&pdev->dev, "got pwm for backlight\n");
|
||||
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.type = BACKLIGHT_RAW;
|
||||
props.max_brightness = data->max_brightness;
|
||||
bl = backlight_device_register(dev_name(&pdev->dev), &pdev->dev, pb,
|
||||
&pwm_backlight_ops, &props);
|
||||
|
@ -778,6 +778,7 @@ static int __devinit s6e63m0_probe(struct spi_device *spi)
|
||||
|
||||
bd->props.max_brightness = MAX_BRIGHTNESS;
|
||||
bd->props.brightness = MAX_BRIGHTNESS;
|
||||
bd->props.type = BACKLIGHT_RAW;
|
||||
lcd->bd = bd;
|
||||
|
||||
/*
|
||||
|
@ -102,6 +102,7 @@ static int __devinit tosa_bl_probe(struct i2c_client *client,
|
||||
data->i2c = client;
|
||||
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.type = BACKLIGHT_RAW;
|
||||
props.max_brightness = 512 - 1;
|
||||
data->bl = backlight_device_register("tosa-bl", &client->dev, data,
|
||||
&bl_ops, &props);
|
||||
|
@ -193,6 +193,7 @@ static int wm831x_backlight_probe(struct platform_device *pdev)
|
||||
data->current_brightness = 0;
|
||||
data->isink_reg = isink_reg;
|
||||
|
||||
props.type = BACKLIGHT_RAW;
|
||||
props.max_brightness = max_isel;
|
||||
bl = backlight_device_register("wm831x", &pdev->dev, data,
|
||||
&wm831x_backlight_ops, &props);
|
||||
|
@ -649,6 +649,7 @@ static int __devinit bfin_bf54x_probe(struct platform_device *pdev)
|
||||
}
|
||||
#ifndef NO_BL_SUPPORT
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.type = BACKLIGHT_RAW;
|
||||
props.max_brightness = 255;
|
||||
bl_dev = backlight_device_register("bf54x-bl", NULL, NULL,
|
||||
&bfin_lq043fb_bl_ops, &props);
|
||||
|
@ -545,6 +545,7 @@ static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev)
|
||||
}
|
||||
#ifndef NO_BL_SUPPORT
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.type = BACKLIGHT_RAW;
|
||||
props.max_brightness = 255;
|
||||
bl_dev = backlight_device_register("bf52x-bl", NULL, NULL,
|
||||
&bfin_lq043fb_bl_ops, &props);
|
||||
|
@ -499,6 +499,7 @@ static void imxfb_init_backlight(struct imxfb_info *fbi)
|
||||
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.max_brightness = 0xff;
|
||||
props.type = BACKLIGHT_RAW;
|
||||
writel(fbi->pwmr, fbi->regs + LCDC_PWMR);
|
||||
|
||||
bl = backlight_device_register("imxfb-bl", &fbi->pdev->dev, fbi,
|
||||
|
@ -111,6 +111,7 @@ void nvidia_bl_init(struct nvidia_par *par)
|
||||
snprintf(name, sizeof(name), "nvidiabl%d", info->node);
|
||||
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.type = BACKLIGHT_RAW;
|
||||
props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
|
||||
bd = backlight_device_register(name, info->dev, par, &nvidia_bl_ops,
|
||||
&props);
|
||||
|
@ -534,6 +534,7 @@ static int acx_panel_probe(struct omap_dss_device *dssdev)
|
||||
|
||||
props.fb_blank = FB_BLANK_UNBLANK;
|
||||
props.power = FB_BLANK_UNBLANK;
|
||||
props.type = BACKLIGHT_RAW;
|
||||
|
||||
bldev = backlight_device_register("acx565akm", &md->spi->dev,
|
||||
md, &acx565akm_bl_ops, &props);
|
||||
|
@ -99,6 +99,7 @@ static int sharp_ls_panel_probe(struct omap_dss_device *dssdev)
|
||||
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.max_brightness = dssdev->max_backlight_level;
|
||||
props.type = BACKLIGHT_RAW;
|
||||
|
||||
bl = backlight_device_register("sharp-ls", &dssdev->dev, dssdev,
|
||||
&sharp_ls_bl_ops, &props);
|
||||
|
@ -729,6 +729,8 @@ static int taal_probe(struct omap_dss_device *dssdev)
|
||||
props.max_brightness = 255;
|
||||
else
|
||||
props.max_brightness = 127;
|
||||
|
||||
props.type = BACKLIGHT_RAW;
|
||||
bldev = backlight_device_register("taal", &dssdev->dev, dssdev,
|
||||
&taal_bl_ops, &props);
|
||||
if (IS_ERR(bldev)) {
|
||||
|
@ -355,6 +355,7 @@ static void riva_bl_init(struct riva_par *par)
|
||||
snprintf(name, sizeof(name), "rivabl%d", info->node);
|
||||
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.type = BACKLIGHT_RAW;
|
||||
props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
|
||||
bd = backlight_device_register(name, info->dev, par, &riva_bl_ops,
|
||||
&props);
|
||||
|
@ -32,6 +32,13 @@ enum backlight_update_reason {
|
||||
BACKLIGHT_UPDATE_SYSFS,
|
||||
};
|
||||
|
||||
enum backlight_type {
|
||||
BACKLIGHT_RAW = 1,
|
||||
BACKLIGHT_PLATFORM,
|
||||
BACKLIGHT_FIRMWARE,
|
||||
BACKLIGHT_TYPE_MAX,
|
||||
};
|
||||
|
||||
struct backlight_device;
|
||||
struct fb_info;
|
||||
|
||||
@ -62,6 +69,8 @@ struct backlight_properties {
|
||||
/* FB Blanking active? (values as for power) */
|
||||
/* Due to be removed, please use (state & BL_CORE_FBBLANK) */
|
||||
int fb_blank;
|
||||
/* Backlight type */
|
||||
enum backlight_type type;
|
||||
/* Flags used to signal drivers of state changes */
|
||||
/* Upper 4 bits are reserved for driver internal use */
|
||||
unsigned int state;
|
||||
|
Loading…
Reference in New Issue
Block a user