From: Chen-Yu Tsai <wenst@chromium.org>
To: Bartosz Golaszewski <brgl@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Daniel Scally <djrscally@gmail.com>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Danilo Krummrich <dakr@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>
Cc: Chen-Yu Tsai <wenst@chromium.org>,
linux-acpi@vger.kernel.org, driver-core@lists.linux.dev,
linux-pm@vger.kernel.org, linux-usb@vger.kernel.org,
devicetree@vger.kernel.org, linux-mediatek@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Manivannan Sadhasivam <mani@kernel.org>,
Alan Stern <stern@rowland.harvard.edu>,
Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Subject: [PATCH v4 08/14] usb: hub: Use usb_hub_set_port_power() to control port power everywhere
Date: Thu, 9 Jul 2026 17:57:13 +0800 [thread overview]
Message-ID: <20260709095726.704448-9-wenst@chromium.org> (raw)
In-Reply-To: <20260709095726.704448-1-wenst@chromium.org>
There are still some instances in the USB hub driver where port power is
directly controlled by toggling the USB_PORT_FEAT_POWER feature flag.
Switch these instances over to usb_hub_set_port_power() so that only one
unified function to do this exists. This makes adding external power
control with the power sequencing API easier and consistently applied.
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
---
Changes since v2:
- New patch
---
drivers/usb/core/hub.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index c7fa73673582..369280a217cc 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -975,11 +975,8 @@ static void hub_power_on(struct usb_hub *hub, bool do_delay)
dev_dbg(hub->intfdev, "trying to enable port power on "
"non-switchable hub\n");
for (port1 = 1; port1 <= hub->hdev->maxchild; port1++)
- if (test_bit(port1, hub->power_bits))
- set_port_feature(hub->hdev, port1, USB_PORT_FEAT_POWER);
- else
- usb_clear_port_feature(hub->hdev, port1,
- USB_PORT_FEAT_POWER);
+ usb_hub_set_port_power(hub->hdev, hub, port1,
+ test_bit(port1, hub->power_bits));
if (do_delay)
msleep(hub_power_on_good_delay(hub));
}
@@ -5436,7 +5433,7 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
if (hub_is_port_power_switchable(hub)
&& !usb_port_is_power_on(port_dev, portstatus)
&& !port_dev->port_owner)
- set_port_feature(hdev, port1, USB_PORT_FEAT_POWER);
+ usb_hub_set_port_power(hdev, hub, port1, true);
if (portstatus & USB_PORT_STAT_ENABLE)
goto done;
--
2.55.0.795.g602f6c329a-goog
next prev parent reply other threads:[~2026-07-09 9:58 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-09 9:57 [PATCH v4 00/14] arm64: mediatek: Add M.2 E-key slot on Chromebooks Chen-Yu Tsai
2026-07-09 9:57 ` [PATCH v4 01/14] device property: Add fwnode_graph_get_port_by_id() Chen-Yu Tsai
2026-07-09 9:57 ` [PATCH v4 02/14] device property: Add fwnode_graph_get_next_port_endpoint() Chen-Yu Tsai
2026-07-09 9:57 ` [PATCH v4 03/14] power: sequencing: Add pwrseq_power_is_on() Chen-Yu Tsai
2026-07-09 10:33 ` Andy Shevchenko
2026-07-09 9:57 ` [PATCH v4 04/14] usb: hub: Return actual error from hub_configure() in hub_probe() Chen-Yu Tsai
2026-07-09 9:57 ` [PATCH v4 05/14] usb: hub: Associate port@ fwnode with USB port device Chen-Yu Tsai
2026-07-10 12:08 ` Greg Kroah-Hartman
2026-07-09 9:57 ` [PATCH v4 06/14] usb: core: Move struct usb_port and related APIs to port.h Chen-Yu Tsai
2026-07-09 10:36 ` Andy Shevchenko
2026-07-09 14:30 ` Bartosz Golaszewski
2026-07-09 9:57 ` [PATCH v4 07/14] usb: hub: Pass |struct usb_port*| to usb_port_is_power_on() Chen-Yu Tsai
2026-07-09 10:38 ` Andy Shevchenko
2026-07-09 9:57 ` Chen-Yu Tsai [this message]
2026-07-09 10:39 ` [PATCH v4 08/14] usb: hub: Use usb_hub_set_port_power() to control port power everywhere Andy Shevchenko
2026-07-09 9:57 ` [PATCH v4 09/14] usb: hub: Power on connected M.2 E-key connectors with power sequencing API Chen-Yu Tsai
2026-07-09 10:53 ` Andy Shevchenko
2026-07-09 9:57 ` [PATCH v4 10/14] dt-bindings: usb: mediatek,mtk-xhci: Switch to ports for USB connections Chen-Yu Tsai
2026-07-09 14:31 ` Bartosz Golaszewski
2026-07-09 9:57 ` [PATCH v4 11/14] power: sequencing: pcie-m2: support matching on remote "port" node Chen-Yu Tsai
2026-07-09 10:55 ` Andy Shevchenko
2026-07-09 9:57 ` [PATCH v4 12/14] power: sequencing: pcie-m2: Add usb and sdio targets for E-key connector Chen-Yu Tsai
2026-07-09 9:57 ` [PATCH v4 13/14] arm64: dts: mediatek: mt8195-cherry: Add M.2 E-key slot Chen-Yu Tsai
2026-07-09 9:57 ` [PATCH v4 14/14] arm64: dts: mediatek: mt8188-geralt: Add WiFi/BT as " Chen-Yu Tsai
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