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usb: host: ohci: fix sfr kernel warning in ohci-at91 driver 

The USB Host Controller driver 'ohci-at91.c' reads a Special Function
Register - OHCI Interrupt Configuration Register (AT91_SFR_OHCIICR)
for bits SUSPEND_A/B/C. These bits are defined in sama5d2 alone, so
sfr register mapping is done with compatible string "atmel,sama5d2-sfr".
This gives a kernel warning 'failed to find sfr node' with non sama5d2
cpus which is removed here, thus leaving it up to having a proper DTS.

Signed-off-by: Prasanthi Chellakumar <prasanthi.chellakumar@microchip.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Prasanthi Chellakumar 2018-05-25 15:04:24 -07:00 committed by Greg Kroah-Hartman
parent 48b73d0fa1
commit 802bda5595
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/host/ohci-at91.c
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@ -212,7 +212,7 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver,
ohci_at91->sfr_regmap = at91_dt_syscon_sfr();
if (!ohci_at91->sfr_regmap)
dev_warn(dev, "failed to find sfr node\n");
dev_dbg(dev, "failed to find sfr node\n");
board = hcd->self.controller->platform_data;
ohci = hcd_to_ohci(hcd);