mirror of https://github.com/torvalds/linux.git
6afaff1c66
Some cpuidle C-states supported on am335x and am437x, like C1 on am335x, require the use of the wkup_m3_ipc driver, and all C-states beyond C0 on both platforms require the use of the SRAM sleep code. Pass am33xx_do_sram_idle as the idle function to the platform pm core to be used by the cpuidle-arm driver when entering cpuidle states. am33xx_do_sram_idle will detect when the wkup_m3 is needed and ping it if necessary before calling the final cpu_suspend op which will execute the SRAM code to put the cpu into idle. Finally, use the begin_suspend and finish_suspend platform ops to be called at the beginning and end of suspend path to allow use of cpu_idle_poll_ctrl. This prevents races between cpuidle and suspend paths trying to communicate with the wkup_m3, as during suspend we only want it configured for entry to suspend. Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com> |
||
|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| k3-ringacc.c | ||
| knav_dma.c | ||
| knav_qmss.h | ||
| knav_qmss_acc.c | ||
| knav_qmss_queue.c | ||
| omap_prm.c | ||
| pm33xx.c | ||
| ti_sci_inta_msi.c | ||
| ti_sci_pm_domains.c | ||
| wkup_m3_ipc.c | ||