linux-kernel - Re: [PATCH v2 2/2] pmdomain: imx8mp-blk-ctrl: keep usb phy power domain on for wakeup

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Message-ID: <CAPDyKFpzygoVuDNV1fYN+zfzFHfoXzJCddydNfRvUN9KuxSX5w@mail.gmail.com>
Date: Thu, 5 Feb 2026 11:56:46 +0100
From: Ulf Hansson <ulf.hansson@...aro.org>
To: Xu Yang <xu.yang_2@....com>
Cc: Frank.Li@....com, s.hauer@...gutronix.de, kernel@...gutronix.de, 
	festevam@...il.com, peng.fan@....com, jun.li@....com, 
	rafael.j.wysocki@...el.com, a.fatoum@...gutronix.de, ping.bai@....com, 
	shawnguo@...nel.org, l.stach@...gutronix.de, linux-pm@...r.kernel.org, 
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] pmdomain: imx8mp-blk-ctrl: keep usb phy power
 domain on for wakeup

On Wed, 4 Feb 2026 at 12:10, Xu Yang <xu.yang_2@....com> wrote:
>
> USB remote wakeup need its PHY on, so add USB PHY power domain on active
> flag.
>
> Signed-off-by: Xu Yang <xu.yang_2@....com>

Applied for fixes and by amending the commit message a little bit to
make it clearer, thanks!

I also added a fixes/stable tag, the same that we used for patch 1.

Kind regards
Uffe


>
> ---
> Changes in v2:
>  - add flag to block control related power domain
> ---
>  drivers/pmdomain/imx/imx8mp-blk-ctrl.c | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/drivers/pmdomain/imx/imx8mp-blk-ctrl.c b/drivers/pmdomain/imx/imx8mp-blk-ctrl.c
> index 56bbfee8668d..8fc79f9723f0 100644
> --- a/drivers/pmdomain/imx/imx8mp-blk-ctrl.c
> +++ b/drivers/pmdomain/imx/imx8mp-blk-ctrl.c
> @@ -53,6 +53,7 @@ struct imx8mp_blk_ctrl_domain_data {
>         const char * const *path_names;
>         int num_paths;
>         const char *gpc_name;
> +       const unsigned int flags;
>  };
>
>  #define DOMAIN_MAX_CLKS 3
> @@ -265,10 +266,12 @@ static const struct imx8mp_blk_ctrl_domain_data imx8mp_hsio_domain_data[] = {
>         [IMX8MP_HSIOBLK_PD_USB_PHY1] = {
>                 .name = "hsioblk-usb-phy1",
>                 .gpc_name = "usb-phy1",
> +               .flags = GENPD_FLAG_ACTIVE_WAKEUP,
>         },
>         [IMX8MP_HSIOBLK_PD_USB_PHY2] = {
>                 .name = "hsioblk-usb-phy2",
>                 .gpc_name = "usb-phy2",
> +               .flags = GENPD_FLAG_ACTIVE_WAKEUP,
>         },
>         [IMX8MP_HSIOBLK_PD_PCIE] = {
>                 .name = "hsioblk-pcie",
> @@ -724,6 +727,7 @@ static int imx8mp_blk_ctrl_probe(struct platform_device *pdev)
>                 domain->genpd.name = data->name;
>                 domain->genpd.power_on = imx8mp_blk_ctrl_power_on;
>                 domain->genpd.power_off = imx8mp_blk_ctrl_power_off;
> +               domain->genpd.flags = data->flags;
>                 domain->bc = bc;
>                 domain->id = i;
>
> --
> 2.34.1
>