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    Subject[PATCH v8 0/4] This is the 1st version of suspend for RK3288.
    Date
    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



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