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| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2019-08-29 08:30:27 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-03 16:54:55 +0300 |
| commit | 34c7ed72f4f04e73901ca6ec2e1db6c040495935 (patch) | |
| tree | 58bbc9540d05a5a23144196c1717bbb63ad6e0fb /drivers/usb/core/phy.h | |
| parent | d7290cd04b4ede9cccc0cf1b72ee856fdf46cf8b (diff) | |
| download | linux-34c7ed72f4f04e73901ca6ec2e1db6c040495935.tar.xz | |
usb: core: phy: add support for PHY calibration
Some PHYs (for example Exynos5 USB3.0 DRD PHY) require calibration to be
done after every USB HCD reset. Generic PHY framework has been already
extended with phy_calibrate() function in commit 36914111e682 ("drivers:
phy: add calibrate method"). This patch adds support for it to generic
PHY handling code in USB HCD core.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Tested-by: Jochen Sprickerhof <jochen@sprickerhof.de>
Link: https://lore.kernel.org/r/20190829053028.32438-2-m.szyprowski@samsung.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core/phy.h')
| -rw-r--r-- | drivers/usb/core/phy.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/core/phy.h b/drivers/usb/core/phy.h index dad564e2d2d4..20a267cd986b 100644 --- a/drivers/usb/core/phy.h +++ b/drivers/usb/core/phy.h @@ -18,6 +18,7 @@ int usb_phy_roothub_exit(struct usb_phy_roothub *phy_roothub); int usb_phy_roothub_set_mode(struct usb_phy_roothub *phy_roothub, enum phy_mode mode); +int usb_phy_roothub_calibrate(struct usb_phy_roothub *phy_roothub); int usb_phy_roothub_power_on(struct usb_phy_roothub *phy_roothub); void usb_phy_roothub_power_off(struct usb_phy_roothub *phy_roothub); |