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USB: host: ohci-at91: completely shutdown the controller in at91_stop_hc()

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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>
This commit is contained in:
Boris Krasnovskiy 2019-09-11 08:41:52 +02:00 committed by Greg Kroah-Hartman
parent 5d88ef9eea
commit 9c4567fa0a
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/host/ohci-at91.c
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@ -123,7 +123,7 @@ static void at91_stop_hc(struct platform_device *pdev)
/*
* Put the USB host controller into reset.
*/
writel(0, &regs->control);
usb_hcd_platform_shutdown(pdev);
/*
* Stop the USB clocks.