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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-06-11 17:57:24 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-06-11 17:57:24 +0200 |
| commit | bc8865ab32bb8d71b607cf73a8367ceebda88767 (patch) | |
| tree | 9e698036be6a25742ec85ef5c1a71c15637d6acd | |
| parent | f1ffa9d4cccc8fdf6c03fb1b3429154d22037988 (diff) | |
| parent | 159d8c274fd92438ca6d7068d7a5eeda157227f4 (diff) | |
| download | linux-bc8865ab32bb8d71b607cf73a8367ceebda88767.tar.bz2 | |
Merge branch 'acpi-bus'
* acpi-bus:
ACPI: Pass the same capabilities to the _OSC regardless of the query flag
| -rw-r--r-- | drivers/acpi/bus.c | 27 |
1 files changed, 8 insertions, 19 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index be7da23fad76..a4bd673934c0 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -330,32 +330,21 @@ static void acpi_bus_osc_negotiate_platform_control(void) if (ACPI_FAILURE(acpi_run_osc(handle, &context))) return; - capbuf_ret = context.ret.pointer; - if (context.ret.length <= OSC_SUPPORT_DWORD) { - kfree(context.ret.pointer); - return; - } + kfree(context.ret.pointer); - /* - * Now run _OSC again with query flag clear and with the caps - * supported by both the OS and the platform. - */ + /* Now run _OSC again with query flag clear */ capbuf[OSC_QUERY_DWORD] = 0; - capbuf[OSC_SUPPORT_DWORD] = capbuf_ret[OSC_SUPPORT_DWORD]; - kfree(context.ret.pointer); if (ACPI_FAILURE(acpi_run_osc(handle, &context))) return; capbuf_ret = context.ret.pointer; - if (context.ret.length > OSC_SUPPORT_DWORD) { - osc_sb_apei_support_acked = - capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_APEI_SUPPORT; - osc_pc_lpi_support_confirmed = - capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_PCLPI_SUPPORT; - osc_sb_native_usb4_support_confirmed = - capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_NATIVE_USB4_SUPPORT; - } + osc_sb_apei_support_acked = + capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_APEI_SUPPORT; + osc_pc_lpi_support_confirmed = + capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_PCLPI_SUPPORT; + osc_sb_native_usb4_support_confirmed = + capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_NATIVE_USB4_SUPPORT; kfree(context.ret.pointer); } |