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Apple SoC driver updates for 6.20

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- Add a poweroff function to the RTKit library which will be required
   for the first USB4/Thunderbolt series I hope to submit next cycle.
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Merge tag 'apple-soc-drivers-6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/sven/linux into soc/drivers

Apple SoC driver updates for 6.20

- Add a poweroff function to the RTKit library which will be required
  for the first USB4/Thunderbolt series I hope to submit next cycle.

* tag 'apple-soc-drivers-6.20' of https://git.kernel.org/pub/scm/linux/kernel/git/sven/linux:
  soc: apple: rtkit: Add function to poweroff

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2026-01-29 10:08:29 +01:00
commit b04d336f04
2 changed files with 23 additions and 0 deletions
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16
drivers/soc/apple/rtkit.c
View File

@ -851,6 +851,22 @@ int apple_rtkit_shutdown(struct apple_rtkit *rtk)
}
EXPORT_SYMBOL_GPL(apple_rtkit_shutdown);
int apple_rtkit_poweroff(struct apple_rtkit *rtk)
{
int ret;
ret = apple_rtkit_set_ap_power_state(rtk, APPLE_RTKIT_PWR_STATE_OFF);
if (ret)
return ret;
ret = apple_rtkit_set_iop_power_state(rtk, APPLE_RTKIT_PWR_STATE_OFF);
if (ret)
return ret;
return apple_rtkit_reinit(rtk);
}
EXPORT_SYMBOL_GPL(apple_rtkit_poweroff);
int apple_rtkit_idle(struct apple_rtkit *rtk)
{
int ret;

7
include/linux/soc/apple/rtkit.h
View File

@ -125,6 +125,13 @@ int apple_rtkit_wake(struct apple_rtkit *rtk);
*/
int apple_rtkit_shutdown(struct apple_rtkit *rtk);
/*
* Put the co-processor into the lowest power state. Note that it usually
* is not possible to recover from this state without a full SoC reset.
*/
int apple_rtkit_poweroff(struct apple_rtkit *rtk);
/*
* Put the co-processor into idle mode
*/