diff options
Diffstat (limited to 'src/soc/intel/skylake/pmutil.c')
| -rw-r--r-- | src/soc/intel/skylake/pmutil.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/pmutil.c b/src/soc/intel/skylake/pmutil.c index 31de242752..904be5c2a0 100644 --- a/src/soc/intel/skylake/pmutil.c +++ b/src/soc/intel/skylake/pmutil.c @@ -351,6 +351,26 @@ u32 clear_gpe_status(void) gpe0_sts_3_bits); } +/* Read and clear GPE status (defined in arch/acpi.h) */ +int acpi_get_gpe(int gpe) +{ + int bank; + uint32_t mask, sts; + + if (gpe < 0 || gpe > GPE0_WADT) + return -1; + + bank = gpe / 32; + mask = 1 << (gpe % 32); + + sts = inl(ACPI_BASE_ADDRESS + GPE0_STS(bank)); + if (sts & mask) { + outl(mask, ACPI_BASE_ADDRESS + GPE0_STS(bank)); + return 1; + } + return 0; +} + /* Enable all requested GPE */ void enable_all_gpe(u32 set1, u32 set2, u32 set3, u32 set4) { |