Hi Paul,
The driver looks fine to me, just two notes:
On Fri, Sep 02, 2016 at 04:48:57PM +0100, Paul Burton wrote:
> Add a driver which allows powering off the system via an Intel PIIX4
> southbridge, by entering the PIIX4 SOff state. This is useful on the
> MIPS Malta development board, where it will power down the FPGA based
> board until its ON/NMI button is pressed, or the QEMU implementation of
> the MIPS Malta board where it will cause QEMU to exit.
>
> Signed-off-by: Paul Burton <paul.burton@xxxxxxxxxx>
> ---
>
> drivers/power/reset/Kconfig | 9 +++
> drivers/power/reset/Makefile | 1 +
> drivers/power/reset/piix4-poweroff.c | 103 +++++++++++++++++++++++++++++++++++
> 3 files changed, 113 insertions(+)
> create mode 100644 drivers/power/reset/piix4-poweroff.c
>
> diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig
> index c74c3f6..b27ca50 100644
> --- a/drivers/power/reset/Kconfig
> +++ b/drivers/power/reset/Kconfig
> @@ -104,6 +104,15 @@ config POWER_RESET_MSM
> help
> Power off and restart support for Qualcomm boards.
>
> +config POWER_RESET_PIIX4_POWEROFF
> + tristate "Intel PIIX4 power-off driver"
> + depends on MIPS && PCI
depends on PCI
depends on MIPS || COMPILE_TEST
> + help
> + This driver supports powering off a system using the Intel PIIX4
> + southbridge, for example the MIPS Malta development board. The
> + southbridge SOff state is entered in response to a request to
> + power off the system.
> +
> config POWER_RESET_LTC2952
> bool "LTC2952 PowerPath power-off driver"
> depends on OF_GPIO
> diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile
> index 1be307c..11dae3b 100644
> --- a/drivers/power/reset/Makefile
> +++ b/drivers/power/reset/Makefile
> @@ -10,6 +10,7 @@ obj-$(CONFIG_POWER_RESET_GPIO_RESTART) += gpio-restart.o
> obj-$(CONFIG_POWER_RESET_HISI) += hisi-reboot.o
> obj-$(CONFIG_POWER_RESET_IMX) += imx-snvs-poweroff.o
> obj-$(CONFIG_POWER_RESET_MSM) += msm-poweroff.o
> +obj-$(CONFIG_POWER_RESET_PIIX4_POWEROFF) += piix4-poweroff.o
> obj-$(CONFIG_POWER_RESET_LTC2952) += ltc2952-poweroff.o
> obj-$(CONFIG_POWER_RESET_QNAP) += qnap-poweroff.o
> obj-$(CONFIG_POWER_RESET_RESTART) += restart-poweroff.o
> diff --git a/drivers/power/reset/piix4-poweroff.c b/drivers/power/reset/piix4-poweroff.c
> new file mode 100644
> index 0000000..bfa8bea
> --- /dev/null
> +++ b/drivers/power/reset/piix4-poweroff.c
[...]
> +
> +module_pci_driver(piix4_poweroff_driver);
> +MODULE_AUTHOR("Paul Burton <paul.burton@xxxxxxxxxx>");
missing MODULE_LICENSE()
-- Sebastian
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