From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from claranet-outbound-smtp03.uk.clara.net ([195.8.89.36]:36907 "EHLO claranet-outbound-smtp03.uk.clara.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758683Ab2J2L0E (ORCPT ); Mon, 29 Oct 2012 07:26:04 -0400 From: Simon Farnsworth To: Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org Subject: Re: [PATCH] saa7134: Add pm_qos_request to fix video corruption Date: Mon, 29 Oct 2012 11:25:38 +0000 Message-ID: <3124636.sEoNQbeq5Q@f17simon> In-Reply-To: <1350906611-17498-1-git-send-email-simon.farnsworth@onelan.co.uk> References: <1350906611-17498-1-git-send-email-simon.farnsworth@onelan.co.uk> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart2763124.klLcYckpKo"; micalg="pgp-sha1"; protocol="application/pgp-signature" Content-Transfer-Encoding: 7Bit Sender: linux-media-owner@vger.kernel.org List-ID: --nextPart2763124.klLcYckpKo Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" On Monday 22 October 2012 12:50:11 Simon Farnsworth wrote: > The SAA7134 appears to have trouble buffering more than one line of video > when doing DMA. Rather than try to fix the driver to cope (as has been done > by Andy Walls for the cx18 driver), put in a pm_qos_request to limit deep > sleep exit latencies. > > The visible effect of not having this is that seemingly random lines are > only partly transferred - if you feed in a static image, you see a portion > of the image "flicker" into place. > > Signed-off-by: Simon Farnsworth Hello Mauro, I've just noticed that I forgot to CC you in on this patch I sent last week - Patchwork grabbed it at https://patchwork.kernel.org/patch/1625311/ but if you want me to resend it so that you've got it in a mailbox for consideration, just let me know. -- Simon Farnsworth Software Engineer ONELAN Ltd http://www.onelan.com --nextPart2763124.klLcYckpKo Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) iQEcBAABAgAGBQJQjme2AAoJEIKsye9/dtRWksUH/13R/JVFeSmIK/QtHKijLY3d NC84UHS24AD6r4y+EEmrs9+levCyJ7xiwHKsgIA9sdrbte8jHv4FqGJZRPn1mwtQ GQLvSmV6Z4bFobqrhXdmpewYz5rNsVla3RFAX06gcEcjBKZHAa/1EvDj8RVAeyyC 48bV3I17oNIsGnGBQ1Mqol3SEJgLwzB/64h4IrpcTYVH986ACPgriKKPAdwIqA6d np1+S6U9WbDn9pbjp+SACcmx0l72xpLO30jwSQRPUmdvXsm5nQKYv5aNNjilTjfT D7vEN22kpzPBNig+osPx/gUs/Lz0tNaWk9TPSBT8Nfkh74KNzZF5SxC/kOXQpAM= =lJx7 -----END PGP SIGNATURE----- --nextPart2763124.klLcYckpKo--