From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Nelson Date: Tue, 23 Jul 2013 15:12:33 -0700 Subject: [U-Boot] [PATCH] imx: nitrogen6x: mx6qsabrelite: Add support for DVI monitors In-Reply-To: References: <1374525217-1058-1-git-send-email-robert.winkler@boundarydevices.com> <51EEF8EA.9060602@boundarydevices.com> Message-ID: <51EEFFD1.7040901@boundarydevices.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Fabio, On 07/23/2013 02:46 PM, Fabio Estevam wrote: > Hi Eric, > > On Tue, Jul 23, 2013 at 6:43 PM, Eric Nelson > wrote: > >> A little background is probably appropriate for this patch. >> >> Since "the beginning" of usage of the SABRE Lite and Nitrogen6x >> boards, DVI detection has been somewhat broken. >> >> Some (most) DVI monitors don't produce the "HPD" bit in >> the PHY_STAT0 register, but do show proper toggling of the >> RX_SENSE0..3 bits. >> >> Creating a new the bit-mask to include all five bits and >> modifying the 'hdmidet' command and internal detection >> routines allows these monitors to function properly in U-Boot. >> >> A related patch to our kernels allows things to work under >> Linux: >> >> https://github.com/boundarydevices/linux-imx6/commit/7d8752905c118af9063738a533227de0b2f6ecd4 > > Thanks for the excellent explanation and for finding the root cause! > > It would be really nice if Robert could send a v2 adding your text > into the commit log. > Seems to be already done. Also note that this patch will be smaller with a V3 of your patch collapsing SABRE Lite into the nitrogen6x/ tree (nudge nudge)... Regards, Eric