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-rw-r--r--drivers/acpi/processor_perflib.c13
-rw-r--r--drivers/acpi/video_detect.c16
-rw-r--r--drivers/acpi/x86/utils.c49
3 files changed, 61 insertions, 17 deletions
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 4265814c74f8..53996f1a2d80 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -24,8 +24,6 @@
#define ACPI_PROCESSOR_FILE_PERFORMANCE "performance"
-static DEFINE_MUTEX(performance_mutex);
-
/*
* _PPC support is implemented as a CPUfreq policy notifier:
* This means each time a CPUfreq driver registered also with
@@ -209,6 +207,10 @@ void acpi_processor_ppc_exit(struct cpufreq_policy *policy)
}
}
+#ifdef CONFIG_X86
+
+static DEFINE_MUTEX(performance_mutex);
+
static int acpi_processor_get_performance_control(struct acpi_processor *pr)
{
int result = 0;
@@ -267,7 +269,6 @@ end:
return result;
}
-#ifdef CONFIG_X86
/*
* Some AMDs have 50MHz frequency multiples, but only provide 100MHz rounding
* in their ACPI data. Calculate the real values and fix up the _PSS data.
@@ -298,9 +299,6 @@ static void amd_fixup_frequency(struct acpi_processor_px *px, int i)
px->core_frequency = (100 * (fid + 8)) >> did;
}
}
-#else
-static void amd_fixup_frequency(struct acpi_processor_px *px, int i) {};
-#endif
static int acpi_processor_get_performance_states(struct acpi_processor *pr)
{
@@ -440,13 +438,11 @@ int acpi_processor_get_performance_info(struct acpi_processor *pr)
* the BIOS is older than the CPU and does not know its frequencies
*/
update_bios:
-#ifdef CONFIG_X86
if (acpi_has_method(pr->handle, "_PPC")) {
if(boot_cpu_has(X86_FEATURE_EST))
pr_warn(FW_BUG "BIOS needs update for CPU "
"frequency support\n");
}
-#endif
return result;
}
EXPORT_SYMBOL_GPL(acpi_processor_get_performance_info);
@@ -788,3 +784,4 @@ unlock:
mutex_unlock(&performance_mutex);
}
EXPORT_SYMBOL(acpi_processor_unregister_performance);
+#endif
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 015bd8e66c1c..d507d5e08435 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -551,6 +551,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
},
{
.callback = video_detect_force_native,
+ /* Apple MacBook Air 7,2 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir7,2"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
/* Apple MacBook Air 9,1 */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
@@ -566,6 +574,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
},
},
{
+ .callback = video_detect_force_native,
+ /* Apple MacBook Pro 11,2 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro11,2"),
+ },
+ },
+ {
/* https://bugzilla.redhat.com/show_bug.cgi?id=1217249 */
.callback = video_detect_force_native,
/* Apple MacBook Pro 12,1 */
diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c
index 6af546b21574..423565c31d5e 100644
--- a/drivers/acpi/x86/utils.c
+++ b/drivers/acpi/x86/utils.c
@@ -12,6 +12,7 @@
#include <linux/acpi.h>
#include <linux/dmi.h>
+#include <linux/pci.h>
#include <linux/platform_device.h>
#include <asm/cpu_device_id.h>
#include <asm/intel-family.h>
@@ -392,6 +393,19 @@ static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = {
ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
},
{
+ /* Vexia Edu Atla 10 tablet 9V version */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+ DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
+ /* Above strings are too generic, also match on BIOS date */
+ DMI_MATCH(DMI_BIOS_DATE, "08/25/2014"),
+ },
+ .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
+ ACPI_QUIRK_UART1_SKIP |
+ ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY |
+ ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS),
+ },
+ {
/* Whitelabel (sold as various brands) TM800A550L */
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
@@ -439,18 +453,35 @@ static int acpi_dmi_skip_serdev_enumeration(struct device *controller_parent, bo
struct acpi_device *adev = ACPI_COMPANION(controller_parent);
const struct dmi_system_id *dmi_id;
long quirks = 0;
- u64 uid;
- int ret;
+ u64 uid = 0;
- ret = acpi_dev_uid_to_integer(adev, &uid);
- if (ret)
+ dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
+ if (!dmi_id)
return 0;
- dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
- if (dmi_id)
- quirks = (unsigned long)dmi_id->driver_data;
+ quirks = (unsigned long)dmi_id->driver_data;
+
+ /* uid is left at 0 on errors and 0 is not a valid UART UID */
+ acpi_dev_uid_to_integer(adev, &uid);
+
+ /* For PCI UARTs without an UID */
+ if (!uid && dev_is_pci(controller_parent)) {
+ struct pci_dev *pdev = to_pci_dev(controller_parent);
+
+ /*
+ * Devfn values for PCI UARTs on Bay Trail SoCs, which are
+ * the only devices where this fallback is necessary.
+ */
+ if (pdev->devfn == PCI_DEVFN(0x1e, 3))
+ uid = 1;
+ else if (pdev->devfn == PCI_DEVFN(0x1e, 4))
+ uid = 2;
+ }
+
+ if (!uid)
+ return 0;
- if (!dev_is_platform(controller_parent)) {
+ if (!dev_is_platform(controller_parent) && !dev_is_pci(controller_parent)) {
/* PNP enumerated UARTs */
if ((quirks & ACPI_QUIRK_PNP_UART1_SKIP) && uid == 1)
*skip = true;
@@ -505,7 +536,7 @@ int acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *s
* Set skip to true so that the tty core creates a serdev ctrl device.
* The backlight driver will manually create the serdev client device.
*/
- if (acpi_dev_hid_match(adev, "DELL0501")) {
+ if (adev && acpi_dev_hid_match(adev, "DELL0501")) {
*skip = true;
/*
* Create a platform dev for dell-uart-backlight to bind to.