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Merge branch 'acpi-video' 

* acpi-video:
  ACPI: blacklist win8 OSI for buggy laptops
  ACPI: blacklist win8 OSI for ASUS Zenbook Prime UX31A
  ACPI / video: drop unused fields from struct acpi_video_brightness_flags
  ACPI / video: remove unnecessary type casting
  ACPI / video: trivial style cleanups
  ACPI / video: trivial costmetic cleanups

Conflicts:
	drivers/acpi/video.c
This commit is contained in:
Rafael J. Wysocki 2013-08-27 01:40:40 +02:00
parent 551f5c74e1 94fb9823a7
commit 8a3a53ea89
2 changed files with 117 additions and 93 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/acpi/blacklist.c
View File

@ -192,6 +192,12 @@ static int __init dmi_disable_osi_win7(const struct dmi_system_id *d)
acpi_osi_setup("!Windows 2009");
return 0;
}
static int __init dmi_disable_osi_win8(const struct dmi_system_id *d)
{
printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
acpi_osi_setup("!Windows 2012");
return 0;
}
static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
{
@ -267,6 +273,30 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
},
},
{
.callback = dmi_disable_osi_win8,
.ident = "ASUS Zenbook Prime UX31A",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
DMI_MATCH(DMI_PRODUCT_NAME, "UX31A"),
},
},
{
.callback = dmi_disable_osi_win8,
.ident = "Dell Inspiron 15R SE",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7520"),
},
},
{
.callback = dmi_disable_osi_win8,
.ident = "Lenovo ThinkPad Edge E530",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_PRODUCT_VERSION, "3259A2G"),
},
},
/*
* BIOS invocation of _OSI(Linux) is almost always a BIOS bug.

54
drivers/acpi/video.c
View File

@ -1,5 +1,5 @@
/*
* video.c - ACPI Video Driver ($Revision:$)
* video.c - ACPI Video Driver
*
* Copyright (C) 2004 Luming Yu <luming.yu@intel.com>
* Copyright (C) 2004 Bruno Ducrot <ducrot@poupinou.org>
@ -88,7 +88,7 @@ module_param(allow_duplicates, bool, 0644);
static bool use_bios_initial_backlight = 1;
module_param(use_bios_initial_backlight, bool, 0644);
static int register_count = 0;
static int register_count;
static int acpi_video_bus_add(struct acpi_device *device);
static int acpi_video_bus_remove(struct acpi_device *device);
static void acpi_video_bus_notify(struct acpi_device *device, u32 event);
@ -185,8 +185,6 @@ struct acpi_video_device_cap {
struct acpi_video_brightness_flags {
u8 _BCL_no_ac_battery_levels:1; /* no AC/Battery levels in _BCL */
u8 _BCL_reversed:1; /* _BCL package is in a reversed order */
u8 _BCL_use_index:1; /* levels in _BCL are index values */
u8 _BCM_use_index:1; /* input of _BCM is an index value */
u8 _BQC_use_index:1; /* _BQC returns an index value */
};
@ -236,15 +234,16 @@ static int acpi_video_get_brightness(struct backlight_device *bd)
{
unsigned long long cur_level;
int i;
struct acpi_video_device *vd =
(struct acpi_video_device *)bl_get_data(bd);
struct acpi_video_device *vd = bl_get_data(bd);
if (acpi_video_device_lcd_get_level_current(vd, &cur_level, false))
return -EINVAL;
for (i = 2; i < vd->brightness->count; i++) {
if (vd->brightness->levels[i] == cur_level)
/* The first two entries are special - see page 575
of the ACPI spec 3.0 */
/*
* The first two entries are special - see page 575
* of the ACPI spec 3.0
*/
return i - 2;
}
return 0;
@ -253,8 +252,7 @@ static int acpi_video_get_brightness(struct backlight_device *bd)
static int acpi_video_set_brightness(struct backlight_device *bd)
{
int request_level = bd->props.brightness + 2;
struct acpi_video_device *vd =
(struct acpi_video_device *)bl_get_data(bd);
struct acpi_video_device *vd = bl_get_data(bd);
return acpi_video_device_lcd_set_level(vd,
vd->brightness->levels[request_level]);
@ -316,9 +314,11 @@ static const struct thermal_cooling_device_ops video_cooling_ops = {
.set_cur_state = video_set_cur_state,
};
/* --------------------------------------------------------------------------
Video Management
-------------------------------------------------------------------------- */
/*
* --------------------------------------------------------------------------
* Video Management
* --------------------------------------------------------------------------
*/
static int
acpi_video_device_lcd_query_levels(struct acpi_video_device *device,
@ -552,7 +552,8 @@ acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
buf));
device->cap._BQC = device->cap._BCQ = 0;
} else {
/* Fixme:
/*
* Fixme:
* should we return an error or ignore this failure?
* dev->brightness->curr is a cached value which stores
* the correct current backlight level in most cases.
@ -799,16 +800,6 @@ acpi_video_init_brightness(struct acpi_video_device *device)
br->count = count;
device->brightness = br;
/* Check the input/output of _BQC/_BCL/_BCM */
if ((max_level < 100) && (max_level <= (count - 2)))
br->flags._BCL_use_index = 1;
/*
* _BCM is always consistent with _BCL,
* at least for all the laptops we have ever seen.
*/
br->flags._BCM_use_index = br->flags._BCL_use_index;
/* _BQC uses INDEX while _BCL uses VALUE in some laptops */
br->curr = level = max_level;
@ -900,7 +891,7 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
acpi_handle acpi_parent;
struct device *parent = NULL;
int result;
static int count = 0;
static int count;
char *name;
result = acpi_video_init_brightness(device);
@ -1012,7 +1003,8 @@ static int acpi_video_bus_check(struct acpi_video_bus *video)
return -ENODEV;
pci_dev_put(dev);
/* Since there is no HID, CID and so on for VGA driver, we have
/*
* Since there is no HID, CID and so on for VGA driver, we have
* to check well known required nodes.
*/
@ -1042,9 +1034,11 @@ static int acpi_video_bus_check(struct acpi_video_bus *video)
return status;
}
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
/*
* --------------------------------------------------------------------------
* Driver Interface
* --------------------------------------------------------------------------
*/
/* device interface */
static struct acpi_video_device_attrib *
@ -1107,7 +1101,7 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
attribute = acpi_video_get_device_attr(video, device_id);
if((attribute != NULL) && attribute->device_id_scheme) {
if (attribute && attribute->device_id_scheme) {
switch (attribute->display_type) {
case ACPI_VIDEO_DISPLAY_CRT:
data->flags.crt = 1;