From mboxrd@z Thu Jan 1 00:00:00 1970 From: Igor Grinberg Subject: Re: [PATCH RESEND] ARM: OMAP3: USB: Fix the EHCI ULPI PHY reset issue Date: Tue, 27 Mar 2012 17:10:54 +0200 Message-ID: <4F71D87E.70100@compulab.co.il> References: <1332139367-1302-1-git-send-email-keshava_mgowda@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1332139367-1302-1-git-send-email-keshava_mgowda-l0cyMroinI0@public.gmane.org> Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Keshava Munegowda Cc: linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, balbi-l0cyMroinI0@public.gmane.org, sameo-VuQAYsv1563Yd54FQh9/CA@public.gmane.org, parthab-PpE0FKYn9XJWk0Htik3J/w@public.gmane.org, govindraj.raja-l0cyMroinI0@public.gmane.org List-Id: linux-omap@vger.kernel.org On 03/19/12 08:42, Keshava Munegowda wrote: > From: Keshava Munegowda > > It is observed that the echi ports of 3430 sdp board > are not working due to the random timing of programming > the associated GPIOs of the ULPI PHYs of the EHCI for reset. > If the PHYs are reset at during usbhs core driver, host ports will > not work because EHCI driver is loaded after the resetting PHYs. > The PHYs should be in reset state while initializing the EHCI > controller. > The code which does the GPIO pins associated with the PHYs > are programmed to reset is moved from the USB host core driver > to EHCI driver. > > Signed-off-by: Keshava Munegowda > Reviewed-by: Partha Basak Both EHCI ports worked on cm-t3730 previously and no regression is seen with this patch. Tested-by: Igor Grinberg -- Regards, Igor. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html