Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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>
+23
+16
drivers/soc/apple/rtkit.c
+16
drivers/soc/apple/rtkit.c
···
851
851
}
852
852
EXPORT_SYMBOL_GPL(apple_rtkit_shutdown);
853
853
854
+
int apple_rtkit_poweroff(struct apple_rtkit *rtk)
855
+
{
856
+
int ret;
857
+
858
+
ret = apple_rtkit_set_ap_power_state(rtk, APPLE_RTKIT_PWR_STATE_OFF);
859
+
if (ret)
860
+
return ret;
861
+
862
+
ret = apple_rtkit_set_iop_power_state(rtk, APPLE_RTKIT_PWR_STATE_OFF);
863
+
if (ret)
864
+
return ret;
865
+
866
+
return apple_rtkit_reinit(rtk);
867
+
}
868
+
EXPORT_SYMBOL_GPL(apple_rtkit_poweroff);
869
+
854
870
int apple_rtkit_idle(struct apple_rtkit *rtk)
855
871
{
856
872
int ret;
+7
include/linux/soc/apple/rtkit.h
+7
include/linux/soc/apple/rtkit.h
···
126
126
int apple_rtkit_shutdown(struct apple_rtkit *rtk);
127
127
128
128
/*
129
+
* Put the co-processor into the lowest power state. Note that it usually
130
+
* is not possible to recover from this state without a full SoC reset.
131
+
*/
132
+
133
+
int apple_rtkit_poweroff(struct apple_rtkit *rtk);
134
+
135
+
/*
129
136
* Put the co-processor into idle mode
130
137
*/
131
138
int apple_rtkit_idle(struct apple_rtkit *rtk);