Hi all, This is a follow-up for my last power sequence framework patch set [1]. According to Rob Herring and Ulf Hansson's comments[2], I use a generic power sequence library for parsing the power sequence elements on DT, and implement generic power sequence on library. The host driver can allocate power sequence instance, and calls pwrseq APIs accordingly. In future, if there are special power sequence requirements, the special power sequence library can be created. This patch set is tested on i.mx6 sabresx evk using a dts change, I use two hot-plug devices to simulate this use case, the related binding change is updated at patch[1/6], The udoo board changes were tested using my last power sequence patch set.[3] Except for hard-wired MMC and USB devices, I find the USB ULPI PHY also need to power on itself before it can be found by ULPI bus. [1] http://www.spinics.net/lists/linux-usb/msg142755.html [2] http://www.spinics.net/lists/linux-usb/msg143106.html [3] http://www.spinics.net/lists/linux-usb/msg142815.html Peter Chen (6): binding-doc: power: pwrseq-generic: add binding doc for generic power sequence library power: add power sequence library binding-doc: usb: usb-device: add optional properties for power sequence usb: core: add power sequence handling for USB devices usb: chipidea: host: let the hcd know's parent device node ARM: dts: imx6qdl-udoo.dtsi: fix onboard USB HUB property .../bindings/power/pwrseq/pwrseq-generic.txt | 56 +++++++++ .../devicetree/bindings/usb/usb-device.txt | 10 ++ arch/arm/boot/dts/imx6qdl-udoo.dtsi | 28 +++-- drivers/power/Kconfig | 1 + drivers/power/Makefile | 1 + drivers/power/pwrseq/Kconfig | 20 +++ drivers/power/pwrseq/Makefile | 2 + drivers/power/pwrseq/core.c | 79 ++++++++++++ drivers/power/pwrseq/pwrseq_generic.c | 134 +++++++++++++++++++++ drivers/usb/chipidea/host.c | 18 ++- drivers/usb/core/Makefile | 1 + drivers/usb/core/hub.c | 12 +- drivers/usb/core/hub.h | 12 ++ drivers/usb/core/pwrseq.c | 102 ++++++++++++++++ include/linux/power/pwrseq.h | 55 +++++++++ 15 files changed, 511 insertions(+), 20 deletions(-) create mode 100644 Documentation/devicetree/bindings/power/pwrseq/pwrseq-generic.txt create mode 100644 drivers/power/pwrseq/Kconfig create mode 100644 drivers/power/pwrseq/Makefile create mode 100644 drivers/power/pwrseq/core.c create mode 100644 drivers/power/pwrseq/pwrseq_generic.c create mode 100644 drivers/usb/core/pwrseq.c create mode 100644 include/linux/power/pwrseq.h -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
