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

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Message-Id: <20260204111142.2147646-2-xu.yang_2@nxp.com>
Date: Wed,  4 Feb 2026 19:11:42 +0800
From: Xu Yang <xu.yang_2@....com>
To: ulf.hansson@...aro.org,
	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
Cc: linux-pm@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/2] pmdomain: imx8mp-blk-ctrl: keep usb phy power domain on for wakeup

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>

---
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