From mboxrd@z Thu Jan 1 00:00:00 1970 From: Felipe Balbi Subject: Re: [PATCH 6/8] usb: musb: Enable the maximum supported burst mode for DMA Date: Thu, 24 Jun 2010 09:11:04 +0300 Message-ID: <20100624061104.GI8078@nokia.com> References: <1276771242-5201-1-git-send-email-ajay.gupta@ti.com> <1276771242-5201-2-git-send-email-ajay.gupta@ti.com> <1276771242-5201-3-git-send-email-ajay.gupta@ti.com> <1276771242-5201-4-git-send-email-ajay.gupta@ti.com> <1276771242-5201-5-git-send-email-ajay.gupta@ti.com> <1276771242-5201-6-git-send-email-ajay.gupta@ti.com> <1276771242-5201-7-git-send-email-ajay.gupta@ti.com> Reply-To: felipe.balbi-xNZwKgViW5gAvxtiuMwx3w@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Return-path: Content-Disposition: inline In-Reply-To: <1276771242-5201-7-git-send-email-ajay.gupta-l0cyMroinI0@public.gmane.org> Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: ext Ajay Kumar Gupta Cc: "linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "Balbi Felipe (Nokia-D/Helsinki)" , "gregkh-l3A5Bk7waGM@public.gmane.org" , Hema HK , Anand Gadiyar List-Id: linux-omap@vger.kernel.org On Thu, Jun 17, 2010 at 12:40:39PM +0200, ext Ajay Kumar Gupta wrote: >From: Hema HK > >Setting MUSB Burst Mode 3 automatically enables support for >lower burst modes (BURST4, BURST8, BURST16 or bursts of unspecified >length). There is no need to set these burst modes based on the >packet size. Also enable the burst mode for both mode1 and mode0. > >This is a fix for buggy hardware - having the lower burst modes >enabled can potentially cause lockups of the DMA engine used in >OMAP2/3/4 chips. > >Signed-off-by: Hema HK >Signed-off-by: Anand Gadiyar >Signed-off-by: Ajay Kumar Gupta Acked-by: Felipe Balbi -- balbi DefectiveByDesign.org -- 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