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author | Takashi Iwai <tiwai@suse.de> | 2025-03-24 17:40:24 +0300 |
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committer | Takashi Iwai <tiwai@suse.de> | 2025-03-24 17:40:24 +0300 |
commit | a98a9c11a35c567afe754e2bc28d3a6ad2292928 (patch) | |
tree | 8d104f77c988645438f6be8a5e4c859982160b8d /drivers/usb/core/hub.c | |
parent | 41a507095040cd6eefca44e28df89303e1c642c9 (diff) | |
parent | 9ef52d529bb75071e03cf85078f724d69c4abe89 (diff) | |
download | linux-a98a9c11a35c567afe754e2bc28d3a6ad2292928.tar.xz |
Merge tag 'asoc-v6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Updates for v6.15
This is a very big release due to a combination of some big new work,
mainly new drivers and generic SoundWire support, and some wide ranging
cleanup work that made small changes to a lot of drivers.
- Morimoto-san has completed the conversion to use modern terminology
for the clocking configuration, and several other cleanups with
narrower impact.
- All the power management operation configuration was updated to use
current idioms by Takashi Iwai.
- Clarification of the control operations from Charles Keepax.
- Prepartory work for more generic SoundWire SCDA controls from Charles
Keepax.
- Support for AMD ACP 7.x, AWINC WM88166, Everest ES8388, Intel AVS
PEAKVOL and GAIN DSP modules Mediatek MT8188 DMIC, NXP i.MX95, nVidia
Tegra interconnects, Rockchip RK3588 S/PDIF, Texas Instruments
SN012776 and TAS5770L, and Wolfson WM8904 DMICs,
Some changes from the tip tree adding APIs needed by the AMD code are
included, these were unfortunately rebased in the tip tree after being
pulled in. There's also some regmap changes supporting the SCDA work
and some devres refactoring that was pulled in to support other changes.
Diffstat (limited to 'drivers/usb/core/hub.c')
-rw-r--r-- | drivers/usb/core/hub.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index a76bb50b6202..dcba4281ea48 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -6066,6 +6066,36 @@ void usb_hub_cleanup(void) } /* usb_hub_cleanup() */ /** + * hub_hc_release_resources - clear resources used by host controller + * @udev: pointer to device being released + * + * Context: task context, might sleep + * + * Function releases the host controller resources in correct order before + * making any operation on resuming usb device. The host controller resources + * allocated for devices in tree should be released starting from the last + * usb device in tree toward the root hub. This function is used only during + * resuming device when usb device require reinitialization – that is, when + * flag udev->reset_resume is set. + * + * This call is synchronous, and may not be used in an interrupt context. + */ +static void hub_hc_release_resources(struct usb_device *udev) +{ + struct usb_hub *hub = usb_hub_to_struct_hub(udev); + struct usb_hcd *hcd = bus_to_hcd(udev->bus); + int i; + + /* Release up resources for all children before this device */ + for (i = 0; i < udev->maxchild; i++) + if (hub->ports[i]->child) + hub_hc_release_resources(hub->ports[i]->child); + + if (hcd->driver->reset_device) + hcd->driver->reset_device(hcd, udev); +} + +/** * usb_reset_and_verify_device - perform a USB port reset to reinitialize a device * @udev: device to reset (not in SUSPENDED or NOTATTACHED state) * @@ -6129,6 +6159,9 @@ static int usb_reset_and_verify_device(struct usb_device *udev) bos = udev->bos; udev->bos = NULL; + if (udev->reset_resume) + hub_hc_release_resources(udev); + mutex_lock(hcd->address0_mutex); for (i = 0; i < PORT_INIT_TRIES; ++i) { |