mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-08-31 01:11:51 -04:00
fef9350c31
Apple SoCs have PMGR blocks that control a bunch of power-related features. Besides the existing device power state controls (which are very uniform and handled by apple-pmgr-pwrstate), we also need to manage more random registers such as SoC-wide fabric and memory controller power states, which have a different interface. Add a driver for these kitchen sink controls. Right now it implements fabric and memory controller power state switching on system standby/s2idle, which saves about 1W of power or so on t60xx platforms. Signed-off-by: Hector Martin <marcan@marcan.st> Reviewed-by: Sven Peter <sven@kernel.org> Co-developed-by: Sasha Finkelstein <k@chaosmail.tech> Signed-off-by: Sasha Finkelstein <k@chaosmail.tech> Reviewed-by: Joshua Peisach <jpeisach@ubuntu.com> Link: https://patch.msgid.link/20260705-pmgr-misc-v3-2-51b75fed6f73@chaosmail.tech Signed-off-by: Sven Peter <sven@kernel.org>