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| author | Linus Walleij <linus.walleij@linaro.org> | 2018-09-01 18:03:12 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-10 20:03:50 +0200 |
| commit | ffa8a31b5b3b81f12a9d77a574cc0b25bb8e856e (patch) | |
| tree | 673a0a1f1465cd217b48b367bba7fd7348c6781f /drivers/usb/host/fotg210.h | |
| parent | 697fa834c3103cda43107bce1e1c3cfb7a4603ac (diff) | |
| download | linux-ffa8a31b5b3b81f12a9d77a574cc0b25bb8e856e.tar.bz2 | |
usb: host: fotg2: add silicon clock handling
When used in a system with software-controlled silicon clocks,
the FOTG210 needs to grab, prepare and enable the clock.
This is needed on for example the Cortina Gemini, where the
platform will by default gate off the clock unless the
peripheral (in this case the USB driver) grabs and enables
the clock.
If there is no clock available on the platform, we live
without it. Make sure to percolate probe deferrals.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/fotg210.h')
| -rw-r--r-- | drivers/usb/host/fotg210.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/host/fotg210.h b/drivers/usb/host/fotg210.h index 7fcd785c7bc8..28f6467c0cbf 100644 --- a/drivers/usb/host/fotg210.h +++ b/drivers/usb/host/fotg210.h @@ -182,6 +182,9 @@ struct fotg210_hcd { /* one per controller */ # define COUNT(x) #endif + /* silicon clock */ + struct clk *pclk; + /* debug files */ struct dentry *debug_dir; }; |