ACPI / video: trivial costmetic cleanups
Fix whitespace and comments in several places in drivers/acpi/video.c. [rjw: Changelog] Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>hifive-unleashed-5.1
Felipe Contreras
Rafael J. Wysocki
parent
5ae90d8e46
commit
21fcb34e28
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@ -1,5 +1,5 @@
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/*
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* video.c - ACPI Video Driver ($Revision:$)
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* video.c - ACPI Video Driver
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*
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* Copyright (C) 2004 Luming Yu <luming.yu@intel.com>
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* Copyright (C) 2004 Bruno Ducrot <ducrot@poupinou.org>
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@ -118,26 +118,26 @@ struct acpi_video_bus_flags {
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};
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struct acpi_video_bus_cap {
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u8 _DOS:1; /*Enable/Disable output switching */
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u8 _DOD:1; /*Enumerate all devices attached to display adapter */
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u8 _ROM:1; /*Get ROM Data */
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u8 _GPD:1; /*Get POST Device */
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u8 _SPD:1; /*Set POST Device */
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u8 _VPO:1; /*Video POST Options */
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u8 _DOS:1; /* Enable/Disable output switching */
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u8 _DOD:1; /* Enumerate all devices attached to display adapter */
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u8 _ROM:1; /* Get ROM Data */
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u8 _GPD:1; /* Get POST Device */
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u8 _SPD:1; /* Set POST Device */
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u8 _VPO:1; /* Video POST Options */
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u8 reserved:2;
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};
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struct acpi_video_device_attrib {
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u32 display_index:4; /* A zero-based instance of the Display */
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u32 display_port_attachment:4; /*This field differentiates the display type */
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u32 display_type:4; /*Describe the specific type in use */
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u32 vendor_specific:4; /*Chipset Vendor Specific */
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u32 bios_can_detect:1; /*BIOS can detect the device */
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u32 depend_on_vga:1; /*Non-VGA output device whose power is related to
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u32 display_port_attachment:4; /* This field differentiates the display type */
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u32 display_type:4; /* Describe the specific type in use */
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u32 vendor_specific:4; /* Chipset Vendor Specific */
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u32 bios_can_detect:1; /* BIOS can detect the device */
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u32 depend_on_vga:1; /* Non-VGA output device whose power is related to
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the VGA device. */
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u32 pipe_id:3; /*For VGA multiple-head devices. */
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u32 reserved:10; /*Must be 0 */
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u32 device_id_scheme:1; /*Device ID Scheme */
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u32 pipe_id:3; /* For VGA multiple-head devices. */
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u32 reserved:10; /* Must be 0 */
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u32 device_id_scheme:1; /* Device ID Scheme */
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};
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struct acpi_video_enumerated_device {
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@ -174,17 +174,17 @@ struct acpi_video_device_flags {
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};
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struct acpi_video_device_cap {
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u8 _ADR:1; /*Return the unique ID */
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u8 _BCL:1; /*Query list of brightness control levels supported */
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u8 _BCM:1; /*Set the brightness level */
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u8 _ADR:1; /* Return the unique ID */
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u8 _BCL:1; /* Query list of brightness control levels supported */
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u8 _BCM:1; /* Set the brightness level */
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u8 _BQC:1; /* Get current brightness level */
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u8 _BCQ:1; /* Some buggy BIOS uses _BCQ instead of _BQC */
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u8 _DDC:1; /*Return the EDID for this device */
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u8 _DDC:1; /* Return the EDID for this device */
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};
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struct acpi_video_brightness_flags {
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u8 _BCL_no_ac_battery_levels:1; /* no AC/Battery levels in _BCL */
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u8 _BCL_reversed:1; /* _BCL package is in a reversed order*/
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u8 _BCL_reversed:1; /* _BCL package is in a reversed order */
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u8 _BCL_use_index:1; /* levels in _BCL are index values */
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u8 _BCM_use_index:1; /* input of _BCM is an index value */
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u8 _BQC_use_index:1; /* _BQC returns an index value */
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@ -231,7 +231,7 @@ static int acpi_video_get_next_level(struct acpi_video_device *device,
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static int acpi_video_switch_brightness(struct acpi_video_device *device,
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int event);
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/*backlight device sysfs support*/
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/* backlight device sysfs support */
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static int acpi_video_get_brightness(struct backlight_device *bd)
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{
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unsigned long long cur_level;
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@ -243,8 +243,10 @@ static int acpi_video_get_brightness(struct backlight_device *bd)
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return -EINVAL;
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for (i = 2; i < vd->brightness->count; i++) {
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if (vd->brightness->levels[i] == cur_level)
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/* The first two entries are special - see page 575
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of the ACPI spec 3.0 */
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/*
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* The first two entries are special - see page 575
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* of the ACPI spec 3.0
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*/
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return i-2;
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}
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return 0;
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@ -316,9 +318,11 @@ static const struct thermal_cooling_device_ops video_cooling_ops = {
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.set_cur_state = video_set_cur_state,
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};
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/* --------------------------------------------------------------------------
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Video Management
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-------------------------------------------------------------------------- */
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/*
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* --------------------------------------------------------------------------
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* Video Management
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* --------------------------------------------------------------------------
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*/
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static int
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acpi_video_device_lcd_query_levels(struct acpi_video_device *device,
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@ -556,7 +560,8 @@ acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
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buf));
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device->cap._BQC = device->cap._BCQ = 0;
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} else {
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/* Fixme:
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/*
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* Fixme:
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* should we return an error or ignore this failure?
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* dev->brightness->curr is a cached value which stores
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* the correct current backlight level in most cases.
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@ -615,8 +620,8 @@ acpi_video_device_EDID(struct acpi_video_device *device,
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/*
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* Arg:
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* video : video bus device pointer
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* bios_flag :
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* video : video bus device pointer
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* bios_flag :
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* 0. The system BIOS should NOT automatically switch(toggle)
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* the active display output.
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* 1. The system BIOS should automatically switch (toggle) the
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@ -628,9 +633,9 @@ acpi_video_device_EDID(struct acpi_video_device *device,
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* lcd_flag :
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* 0. The system BIOS should automatically control the brightness level
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* of the LCD when the power changes from AC to DC
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* 1. The system BIOS should NOT automatically control the brightness
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* 1. The system BIOS should NOT automatically control the brightness
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* level of the LCD when the power changes from AC to DC.
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* Return Value:
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* Return Value:
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* -EINVAL wrong arg.
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*/
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@ -717,8 +722,8 @@ static int acpi_video_bqc_quirk(struct acpi_video_device *device,
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/*
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* Arg:
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* device : video output device (LCD, CRT, ..)
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* Arg:
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* device : video output device (LCD, CRT, ..)
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*
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* Return Value:
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* Maximum brightness level
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@ -877,7 +882,7 @@ out:
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* device : video output device (LCD, CRT, ..)
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*
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* Return Value:
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* None
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* None
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*
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* Find out all required AML methods defined under the output
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* device.
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@ -988,11 +993,11 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
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}
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/*
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* Arg:
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* device : video output device (VGA)
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* Arg:
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* device : video output device (VGA)
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*
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* Return Value:
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* None
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* None
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*
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* Find out all required AML methods defined under the video bus device.
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*/
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@ -1039,7 +1044,8 @@ static int acpi_video_bus_check(struct acpi_video_bus *video)
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return -ENODEV;
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pci_dev_put(dev);
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/* Since there is no HID, CID and so on for VGA driver, we have
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/*
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* Since there is no HID, CID and so on for VGA driver, we have
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* to check well known required nodes.
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*/
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@ -1069,9 +1075,11 @@ static int acpi_video_bus_check(struct acpi_video_bus *video)
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return status;
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}
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/* --------------------------------------------------------------------------
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Driver Interface
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-------------------------------------------------------------------------- */
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/*
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* --------------------------------------------------------------------------
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* Driver Interface
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* --------------------------------------------------------------------------
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*/
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/* device interface */
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static struct acpi_video_device_attrib*
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@ -1192,12 +1200,12 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
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/*
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* Arg:
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* video : video bus device
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* video : video bus device
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*
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* Return:
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* none
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*
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* Enumerate the video device list of the video bus,
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* none
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*
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* Enumerate the video device list of the video bus,
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* bind the ids with the corresponding video devices
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* under the video bus.
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*/
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@ -1216,13 +1224,13 @@ static void acpi_video_device_rebind(struct acpi_video_bus *video)
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/*
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* Arg:
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* video : video bus device
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* device : video output device under the video
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* bus
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* video : video bus device
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* device : video output device under the video
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* bus
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*
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* Return:
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* none
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*
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* none
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*
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* Bind the ids with the corresponding video devices
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* under the video bus.
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*/
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@ -1245,11 +1253,11 @@ acpi_video_device_bind(struct acpi_video_bus *video,
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/*
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* Arg:
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* video : video bus device
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* video : video bus device
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*
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* Return:
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* < 0 : error
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*
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* < 0 : error
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*
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* Call _DOD to enumerate all devices attached to display adapter
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*
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*/
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