diff options
| author | Bob Moore <robert.moore@intel.com> | 2017-09-20 04:00:56 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-10-04 01:43:06 +0200 |
| commit | 8092936dacde0fd00e201390f30d8c219b818f36 (patch) | |
| tree | 2eacf1cd053945c2461c897794a52e207b63343d /drivers/acpi | |
| parent | ACPICA: String conversions: Update to add new behaviors (diff) | |
| download | linux-8092936dacde0fd00e201390f30d8c219b818f36.tar.xz linux-8092936dacde0fd00e201390f30d8c219b818f36.zip | |
ACPICA: Update acpi_get_timer for 64-bit interface to acpi_hw_read
ACPICA commit 1cdcf16447c15694faa564c0cd8e357b910344a0
Return value from acpi_hw_read is now 64 bits, but the ACPI PM
Timer is defined by the ACPI spec to be 32 bits.
Link: https://github.com/acpica/acpica/commit/1cdcf16447c1
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/acpica/hwtimer.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/hwtimer.c b/drivers/acpi/acpica/hwtimer.c index b3c5d8c754bb..a2f4e25d45b1 100644 --- a/drivers/acpi/acpica/hwtimer.c +++ b/drivers/acpi/acpica/hwtimer.c @@ -94,6 +94,7 @@ ACPI_EXPORT_SYMBOL(acpi_get_timer_resolution) acpi_status acpi_get_timer(u32 * ticks) { acpi_status status; + u64 timer_value; ACPI_FUNCTION_TRACE(acpi_get_timer); @@ -107,7 +108,14 @@ acpi_status acpi_get_timer(u32 * ticks) return_ACPI_STATUS(AE_SUPPORT); } - status = acpi_hw_read(ticks, &acpi_gbl_FADT.xpm_timer_block); + status = acpi_hw_read(&timer_value, &acpi_gbl_FADT.xpm_timer_block); + if (ACPI_SUCCESS(status)) { + + /* ACPI PM Timer is defined to be 32 bits (PM_TMR_LEN) */ + + *ticks = (u32)timer_value; + } + return_ACPI_STATUS(status); } |