[PATCH v2 1/7] ARM: imx: add timer stop flag to ARM power off state

Shawn Guo shawnguo at kernel.org
Thu Feb 1 22:16:41 PST 2018


On Wed, Jan 10, 2018 at 10:04:47PM +0100, Stefan Agner wrote:
> When the CPU is in ARM power off state the ARM architected
> timers are stopped. The flag is already present in the higher
> power WAIT mode.
> 
> This allows to use the ARM generic timer on i.MX 6UL/6ULL SoC.
> Without the flag the kernel freezes when the timer enters the
> first time ARM power off mode.
> 
> Note: The default timer on i.MX6SX is the i.MX GPT timer which is
> not disabled during CPU idle. However, the timer is not affected
> by the CPUIDLE_FLAG_TIMER_STOP flag. The flag only affects CPU
> local timers.
> 
> Cc: Anson Huang <anson.huang at nxp.com>
> Signed-off-by: Stefan Agner <stefan at agner.ch>
> Reviewed-by: Lucas Stach <l.stach at pengutronix.de>

Applied all, thanks.



More information about the linux-arm-kernel mailing list