usb: core: phy: add support for PHY calibration

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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 36914111e6 ("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>

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Marek Szyprowski 2019-08-29 07:30:27 +02:00 • committed by Greg Kroah-Hartman

parent d7290cd04b

commit 34c7ed72f4

3 changed files with 29 additions and 0 deletions

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7

drivers/usb/core/hcd.c

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21

drivers/usb/core/phy.c

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1

drivers/usb/core/phy.h

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