Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-19 02:21:47 +00:00
Code Issues Packages Projects Releases Wiki Activity

platform/x86: thinkpad_acpi: Support battery quirk

Browse Source 
Some Thinkpads have a single battery, but expose it as BAT1. Use the quirks
engine to force these machines into always addressing the primary battery.
Without this, the battery name would resolve to the non-existent secondary
battery and ACPI calls would fail.

Signed-off-by: Jouke Witteveen <j.witteveen@gmail.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Jouke Witteveen 2018-07-11 11:45:36 +02:00 committed by Andy Shevchenko
parent 846a416b46
commit 1a32ebb26b
1 changed files with 21 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/platform/x86/thinkpad_acpi.c
View File

@ -335,6 +335,7 @@ static struct {
u32 second_fan:1;
u32 beep_needs_two_args:1;
u32 mixer_no_level_control:1;
u32 battery_force_primary:1;
u32 input_device_registered:1;
u32 platform_drv_registered:1;
u32 platform_drv_attrs_registered:1;
@ -343,7 +344,6 @@ static struct {
u32 sensors_pdev_attrs_registered:1;
u32 hotkey_poll_active:1;
u32 has_adaptive_kbd:1;
u32 battery:1;
} tp_features;
static struct {
@ -471,6 +471,12 @@ do { \
.ec = TPACPI_MATCH_ANY, \
.quirks = (__quirk) }
#define TPACPI_Q_LNV3(__id1, __id2, __id3, __quirk) \
{ .vendor = PCI_VENDOR_ID_LENOVO, \
.bios = TPID3(__id1, __id2, __id3), \
.ec = TPACPI_MATCH_ANY, \
.quirks = (__quirk) }
#define TPACPI_QEC_LNV(__id1, __id2, __quirk) \
{ .vendor = PCI_VENDOR_ID_LENOVO, \
.bios = TPACPI_MATCH_ANY, \
@ -9423,7 +9429,8 @@ static int tpacpi_battery_probe(int battery)
static int tpacpi_battery_get_id(const char *battery_name)
{
if (strcmp(battery_name, "BAT0") == 0)
if (strcmp(battery_name, "BAT0") == 0 ||
tp_features.battery_force_primary)
return BAT_PRIMARY;
if (strcmp(battery_name, "BAT1") == 0)
return BAT_SECONDARY;
@ -9599,8 +9606,20 @@ static struct acpi_battery_hook battery_hook = {
/* Subdriver init/exit */
static const struct tpacpi_quirk battery_quirk_table[] __initconst = {
/*
* Individual addressing is broken on models that expose the
* primary battery as BAT1.
*/
TPACPI_Q_LNV3('R', '0', 'C', true), /* Thinkpad 13 */
};
static int __init tpacpi_battery_init(struct ibm_init_struct *ibm)
{
tp_features.battery_force_primary = tpacpi_check_quirks(
battery_quirk_table,
ARRAY_SIZE(battery_quirk_table));
battery_hook_register(&battery_hook);
return 0;
}