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authorDmitry Osipenko <[email protected]>2020-12-18 15:02:38 +0300
committerGreg Kroah-Hartman <[email protected]>2021-01-13 11:26:34 +0100
commitb100402e93dcae0a88fe59d88d8114ce06d01f1e (patch)
tree1f49f991a0f23fd802ab4cbf32876263344ef09d /tools/perf/scripts/python/bin/stackcollapse-record
parentba9fc77cbf00943b3ae100c4315980a74faf345a (diff)
usb: phy: tegra: Add delay after power up
The PHY hardware needs the delay of 2ms after power up, otherwise initial interrupt may be lost if USB controller is accessed before PHY is settled down. Previously this issue was masked by implicit delays, but now it pops up after squashing the older ehci-tegra driver into the ChipIdea driver. Tested-by: Matt Merhar <[email protected]> Tested-by: Nicolas Chauvet <[email protected]> Tested-by: Peter Geis <[email protected]> Tested-by: Ion Agorria <[email protected]> Acked-by: Thierry Reding <[email protected]> Acked-by: Peter Chen <[email protected]> Signed-off-by: Dmitry Osipenko <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
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