mbox series

[v5,0/3] gpio: add suspend/resume support for i.mx8x SoCs

Message ID 20221111155016.434591-1-shenwei.wang@nxp.com (mailing list archive)
Headers show
Series gpio: add suspend/resume support for i.mx8x SoCs | expand

Message

Shenwei Wang Nov. 11, 2022, 3:50 p.m. UTC 
On i.MX8QM/QXP/DXL SoCs, even a GPIO is selected as the wakeup source,
the GPIO block will be powered off when system enters into suspend
state. This can greatly reduce the power consumption of suspend state
because the whole partition can be shutdown. This is called PAD wakeup
feature on i.MX8x platform.

This series of patches enable this wakeup feature on i.MX8QM/QXP/DXL
platforms.

Changes in v5:
 - improve the commit log per Fabio's feedback.
 - remove the two patches accepted by Linus Walleij

Changes in v4:
 - fixed the format issues reported by Peng Fan.
 - change the return type of mxc_gpio_generic_config, and limit the
   suspend/resume behavior changes only on i.MX8QM/QXP/DXL platform.

Changes in v3:
 - According to the feedback from Linus Walleij, the wakeup feature is
   moved to pinctrl driver, and the array of gpio-pin mapping is moved
   to gpio device node and initialized via gpio-ranges property.

Shenwei Wang (3):
  arm64: dts: imx8dxl-ss-lsio: add gpio-ranges property
  arm64: dts: imx8qm-ss-lsio: add gpio-ranges property
  arm64: dts: imx8qxp-ss-lsio: add gpio-ranges property

 .../boot/dts/freescale/imx8dxl-ss-lsio.dtsi   | 41 +++++++++++++++++++
 .../boot/dts/freescale/imx8qm-ss-lsio.dtsi    | 38 +++++++++++++++++
 .../boot/dts/freescale/imx8qxp-ss-lsio.dtsi   | 25 +++++++++++
 3 files changed, 104 insertions(+)

--
2.34.1

Comments

Shawn Guo Nov. 14, 2022, 8:52 a.m. UTC | #1 
On Fri, Nov 11, 2022 at 09:50:13AM -0600, Shenwei Wang wrote:
> On i.MX8QM/QXP/DXL SoCs, even a GPIO is selected as the wakeup source,
> the GPIO block will be powered off when system enters into suspend
> state. This can greatly reduce the power consumption of suspend state
> because the whole partition can be shutdown. This is called PAD wakeup
> feature on i.MX8x platform.
> 
> This series of patches enable this wakeup feature on i.MX8QM/QXP/DXL
> platforms.
> 
> Changes in v5:
>  - improve the commit log per Fabio's feedback.
>  - remove the two patches accepted by Linus Walleij
> 
> Changes in v4:
>  - fixed the format issues reported by Peng Fan.
>  - change the return type of mxc_gpio_generic_config, and limit the
>    suspend/resume behavior changes only on i.MX8QM/QXP/DXL platform.
> 
> Changes in v3:
>  - According to the feedback from Linus Walleij, the wakeup feature is
>    moved to pinctrl driver, and the array of gpio-pin mapping is moved
>    to gpio device node and initialized via gpio-ranges property.
> 
> Shenwei Wang (3):
>   arm64: dts: imx8dxl-ss-lsio: add gpio-ranges property
>   arm64: dts: imx8qm-ss-lsio: add gpio-ranges property
>   arm64: dts: imx8qxp-ss-lsio: add gpio-ranges property

Applied all, thanks!