Hi all, Looks like we can get omap4 devices to do some PM with mainline kernel mostly with just few dts tweaks. Mostly we just try to remove any GPIO level interrupts and debounce clocks. But let's fix the wlcore irq for all the boards as we know for sure it should be a level interrupt. These changes allow pandaboard-es and duovero parlor to enter core retention during idle, and droid4 to enter per retention during idle. To have the devices enter idle, the UARTs need to be idled, and USB related modules need to be unloaded or unbound. Additionally pandaboard-es somehow needs also rmmod ti_soc_thermal which I don't quite understand. On droid4, GPIO bank 1 needs to be somehow reset after init to not block core retention. I also don't quite understand why this is, maybe because of kexec booting? For dealing with GPIO level interrupts, we're missing some GPIO PM runtime patches that will be posted later after some more testing. Regards, Tony Tony Lindgren (4): ARM: OMAP2+: Make sure LOGICRETSTATE bits are not cleared ARM: dts: Fix omap l4per idling with wlcore edge sensitive interrupt ARM: dts: Configure duovero for to allow core retention during idle omap4-droid4: Use software debounce for gpio-keys arch/arm/boot/dts/am335x-baltos.dtsi | 2 +- arch/arm/boot/dts/am335x-evm.dts | 2 +- arch/arm/boot/dts/am335x-evmsk.dts | 2 +- arch/arm/boot/dts/am437x-gp-evm.dts | 2 +- arch/arm/boot/dts/logicpd-som-lv.dtsi | 2 +- arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts | 2 +- arch/arm/boot/dts/omap3-cm-t3517.dts | 2 +- arch/arm/boot/dts/omap3-cm-t3730.dts | 2 +- arch/arm/boot/dts/omap3-evm-common.dtsi | 2 +- arch/arm/boot/dts/omap3-igep0020-rev-f.dts | 2 +- arch/arm/boot/dts/omap3-igep0030-rev-g.dts | 2 +- arch/arm/boot/dts/omap3-zoom3.dts | 2 +- arch/arm/boot/dts/omap4-droid4-xt894.dts | 5 +++-- arch/arm/boot/dts/omap4-duovero-parlor.dts | 3 ++- arch/arm/boot/dts/omap4-duovero.dtsi | 1 + arch/arm/boot/dts/omap4-panda-common.dtsi | 2 +- arch/arm/boot/dts/omap4-sdp.dts | 2 +- arch/arm/boot/dts/omap4-var-som-om44-wlan.dtsi | 2 +- arch/arm/boot/dts/omap5-board-common.dtsi | 2 +- arch/arm/mach-omap2/pm44xx.c | 13 +++++++++++++ 20 files changed, 35 insertions(+), 19 deletions(-) -- 2.17.0 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
