Re: [PATCH 1/2] usb: chipidea: Reduce ULPI PHY reset pulse to datasheet spec of 1us

2015-07-06 Thread Mike Looijmans
On 02-07-15 11:39, David Laight wrote: From: Peter Chen Sent: 30 June 2015 03:06 On Fri, Jun 26, 2015 at 03:47:03PM +0200, Mike Looijmans wrote: The datasheet for the 334x PHY mentions that a reset can be performed: "... by bringing the pin low for a minimum of 1 microsecond and then high." A d

RE: [PATCH 1/2] usb: chipidea: Reduce ULPI PHY reset pulse to datasheet spec of 1us

2015-07-02 Thread David Laight
From: Peter Chen > Sent: 30 June 2015 03:06 > On Fri, Jun 26, 2015 at 03:47:03PM +0200, Mike Looijmans wrote: > > The datasheet for the 334x PHY mentions that a reset can be performed: > > "... by bringing the pin low for a minimum of 1 microsecond and > > then high." > > A delay of 5ms to implemen

Re: [PATCH 1/2] usb: chipidea: Reduce ULPI PHY reset pulse to datasheet spec of 1us

2015-06-29 Thread Peter Chen
On Fri, Jun 26, 2015 at 03:47:03PM +0200, Mike Looijmans wrote: > The datasheet for the 334x PHY mentions that a reset can be performed: > "... by bringing the pin low for a minimum of 1 microsecond and > then high." > A delay of 5ms to implement that seems overly long, so reduce it to > just 1us.