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authorKai Heng Feng <kai.heng.feng@canonical.com>2018-02-05 13:19:24 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2018-02-06 18:28:24 +0100
commit36904703aeeeb6cd31993f1353c8325006229f9a (patch)
treea2c70030cbe7c0eabe91c7307ffb7ad6080f84f5 /drivers/acpi
parent63347db0affadcbccd5613116ea8431c70139b3e (diff)
ACPI / bus: Parse tables as term_list for Dell XPS 9570 and Precision M5530
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>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/bus.c38
1 files changed, 31 insertions, 7 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 433bb5a3f327..5c00e5e18da8 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -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)) {

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