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| author | Boris Krasnovskiy <Boris.Krasnovskiy@lairdconnect.com> | 2019-09-11 08:41:52 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-04 14:16:53 +0200 |
| commit | 9c4567fa0a44e3733f49f93a2197d9907b836d4a (patch) | |
| tree | 0f573125cfcb45487f11b7e10d6af56e820fa716 | |
| parent | 5d88ef9eead8b5756122cc799593780d15dae471 (diff) | |
| download | linux-9c4567fa0a44e3733f49f93a2197d9907b836d4a.tar.bz2 | |
USB: host: ohci-at91: completely shutdown the controller in at91_stop_hc()
When removing the ohci-at91 module, the fact of not running complete shutdown
of all the ports was keeping additional analog cells consuming power for no
reason.
Doing Reset (OHCI_HCR) to HcCommandStatus register is the way to go, but using
the OHCI controller shutdown procedure is just perfect for this.
Signed-off-by: Boris Krasnovskiy <Boris.Krasnovskiy@lairdconnect.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20190911064154.28633-2-nicolas.ferre@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/host/ohci-at91.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index fc35a7993b7b..cb63bcd5049a 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -123,7 +123,7 @@ static void at91_stop_hc(struct platform_device *pdev) /* * Put the USB host controller into reset. */ - writel(0, ®s->control); + usb_hcd_platform_shutdown(pdev); /* * Stop the USB clocks. |