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| author | Shanker Donthineni <sdonthineni@nvidia.com> | 2023-01-03 02:06:30 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-09 13:28:17 +0300 |
| commit | 8c3203f47d33e4a41de4355856edd2215906b372 (patch) | |
| tree | 90057332f3a5b29e508397ec1dec40b4abf50ed1 /drivers/soc/amlogic | |
| parent | 661bb546c4d547afbc0fab30dd69467a95446263 (diff) | |
| download | linux-8c3203f47d33e4a41de4355856edd2215906b372.tar.xz | |
rtc: efi: Enable SET/GET WAKEUP services as optional
commit 101ca8d05913b7d1e6e8b9dd792193d4082fff86 upstream.
The current implementation of rtc-efi is expecting all the 4
time services GET{SET}_TIME{WAKEUP} must be supported by UEFI
firmware. As per the EFI_RT_PROPERTIES_TABLE, the platform
specific implementations can choose to enable selective time
services based on the RTC device capabilities.
This patch does the following changes to provide GET/SET RTC
services on platforms that do not support the WAKEUP feature.
1) Relax time services cap check when creating a platform device.
2) Clear RTC_FEATURE_ALARM bit in the absence of WAKEUP services.
3) Conditional alarm entries in '/proc/driver/rtc'.
Cc: <stable@vger.kernel.org> # v6.0+
Signed-off-by: Shanker Donthineni <sdonthineni@nvidia.com>
Link: https://lore.kernel.org/r/20230102230630.192911-1-sdonthineni@nvidia.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/soc/amlogic')
0 files changed, 0 insertions, 0 deletions