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ACPI / bus: Parse tables as term_list for Dell XPS 9570 and Precision M5530

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The i2c touchpad on Dell XPS 9570 and Precision M5530 doesn't work out
of box.

The touchpad relies on its _INI method to update its _HID value from
XXXX0000 to SYNA2393.

Also, the _STA relies on value of I2CN to report correct status.

Set acpi_gbl_parse_table_as_term_list so the value of I2CN can be
correctly set up, and _INI can get run. The ACPI table in this machine
is designed to get parsed this way.

Also, change the quirk table to a more generic name.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=198515
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Kai Heng Feng 2018-02-05 13:19:24 +08:00 committed by Rafael J. Wysocki
parent 63347db0af
commit 36904703ae
1 changed files with 31 additions and 7 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

38
drivers/acpi/bus.c
View file

@ -66,10 +66,37 @@ static int set_copy_dsdt(const struct dmi_system_id *id)
return 0;
}
#endif
static int set_gbl_term_list(const struct dmi_system_id *id)
{
acpi_gbl_parse_table_as_term_list = 1;
return 0;
}
static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
static const struct dmi_system_id acpi_quirks_dmi_table[] __initconst = {
/*
* Touchpad on Dell XPS 9570/Precision M5530 doesn't work under I2C
* mode.
* https://bugzilla.kernel.org/show_bug.cgi?id=198515
*/
{
.callback = set_gbl_term_list,
.ident = "Dell Precision M5530",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "Precision M5530"),
},
},
{
.callback = set_gbl_term_list,
.ident = "Dell XPS 15 9570",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "XPS 15 9570"),
},
},
/*
* Invoke DSDT corruption work-around on all Toshiba Satellite.
* DSDT will be copied to memory.
* https://bugzilla.kernel.org/show_bug.cgi?id=14679
*/
{
@ -83,7 +110,7 @@ static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
{}
};
#else
static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
static const struct dmi_system_id acpi_quirks_dmi_table[] __initconst = {
{}
};
#endif
@ -1008,11 +1035,8 @@ void __init acpi_early_init(void)
acpi_permanent_mmap = true;
/*
* If the machine falls into the DMI check table,
* DSDT will be copied to memory
*/
dmi_check_system(dsdt_dmi_table);
/* Check machine-specific quirks */
dmi_check_system(acpi_quirks_dmi_table);
status = acpi_reallocate_root_table();
if (ACPI_FAILURE(status)) {