This suspend patch is only support cut off the power of cpu and some external devices, since we still lack power_domain driver, so the other power rail of rk3288 need keep power on. I have tested it on rk3288-evb board, atop next-20141112. goto suspend by type "echo mem > /sys/power/state", vdd_cpu is about 0mv by measuring, so it can be determined in sleep mode, then press power button to wakeup it.
Based on: [v5,1/6] ARM: rockchip: convert to regmap and use pmu syscon if available https://patchwork.kernel.org/patch/5086341/ [v5,2/6] ARM: rockchip: add option to access the pmu via a phandle in smp_operations https://patchwork.kernel.org/patch/5086441/ [v5,3/6] ARM: dts: rockchip: add pmu references to cpus nodes https://patchwork.kernel.org/patch/5086351/ [v5,4/6] ARM: rockchip: add basic smp support for rk3288 https://patchwork.kernel.org/patch/5086371/ [v5,5/6] ARM: dts: rockchip: add intmem node for rk3288 smp support https://patchwork.kernel.org/patch/5086361/ [v5,6/6] ARM: dts: rockchip: add reset for CPU nodes https://patchwork.kernel.org/patch/5086381/ [v3] usb: dwc2: add bus suspend/resume for dwc2 https://patchwork.kernel.org/patch/5266281/ Changes in v8: - use enum for define sleep mode - move rk3288_config_bootdata to the front of sram memcpy - add ddr pinctrl for suspend - keep all except cpu&tp power rail on during suspend - add regulator-on-in-suspend before set suspend voltage - add a reference of ddrio_pwroff and ddr0_retention Changes in v7: - get rid all of unused code - add regulator-state-mem sub node for suspend Changes in v6: - get rid of the save/restore of SRAM - doing the copy of resume code once at init time - remove ROCKCHIP_ARM_OFF_LOGIC_DEEP from rk3288_fill_in_bootram - add of_platform_populate in rockchip_dt_init - change pmu_intmem@ff720000 to sram@ff720000 - change pmu_intmem@ff720000 to sram@ff720000 Changes in v5: - use rk3288_bootram_sz for memcpy size - fixed error of sram save and restore - change the size of sram in example - change size to 4k Changes in v4: - remove grf regmap Changes in v3: - move the pinmux of gpio6_c6 save and restore to pinctrl-rockchip Changes in v2: - add the regulator calls in prepare and finish. - add the pinmux of gpio6_c6 save and restore - put "rockchip,rk3288-pmu-sram" to first Chris Zhong (4): ARM: rockchip: add suspend and resume for RK3288 ARM: rockchip: Add pmu-sram binding ARM: dts: add RK3288 suspend support ARM: dts: add suspend voltage setting for RK808 .../devicetree/bindings/arm/rockchip/pmu-sram.txt | 16 ++ arch/arm/boot/dts/rk3288-evb-rk808.dts | 55 ++++- arch/arm/boot/dts/rk3288-evb.dtsi | 12 + arch/arm/boot/dts/rk3288.dtsi | 23 ++ arch/arm/mach-rockchip/Makefile | 1 + arch/arm/mach-rockchip/pm.c | 264 +++++++++++++++++++++ arch/arm/mach-rockchip/pm.h | 99 ++++++++ arch/arm/mach-rockchip/rockchip.c | 2 + arch/arm/mach-rockchip/sleep.S | 73 ++++++ 9 files changed, 544 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/arm/rockchip/pmu-sram.txt create mode 100644 arch/arm/mach-rockchip/pm.c create mode 100644 arch/arm/mach-rockchip/pm.h create mode 100644 arch/arm/mach-rockchip/sleep.S -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
