From mboxrd@z Thu Jan 1 00:00:00 1970 From: Geert Uytterhoeven Subject: Re: [PATCH v4 07/14] ARM: dts: koelsch: use demuxer for I2C4 Date: Wed, 16 Nov 2016 11:35:22 +0100 Message-ID: References: <20161106202032.5227-1-wsa+renesas@sang-engineering.com> <20161106202032.5227-8-wsa+renesas@sang-engineering.com> <20161115174450.GA21715@verge.net.au> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: In-Reply-To: <20161115174450.GA21715@verge.net.au> Sender: linux-renesas-soc-owner@vger.kernel.org To: Simon Horman Cc: Wolfram Sang , Linux-Renesas , Linux I2C , Ulrich Hecht List-Id: linux-i2c@vger.kernel.org Hi Simon, On Tue, Nov 15, 2016 at 6:44 PM, Simon Horman wrote: >> i2c4 shares pins with vin0. Hence enabling the former breaks the latter: >> >> sh-pfc e6060000.pfc: pin GP_4_13 already requested by >> e6520000.i2c; cannot claim for e6ef0000.video >> sh-pfc e6060000.pfc: pin-141 (e6ef0000.video) status -22 >> sh-pfc e6060000.pfc: could not request pin 141 (GP_4_13) from >> group vin0_data24 on device sh-pfc >> rcar-vin e6ef0000.video: Error applying setting, reverse things back >> rcar-vin: probe of e6ef0000.video failed with error -22 >> >> There may be similar issues on other boards. Haven't checked yet. > > Thanks, I will drop this patch for now. > > I checked the boot logs of other boards with similar patches and didn't see > anything there. Do you have CONFIG_VIDEO_ADV7604=y? I expect the issue to be present on gose, too. So far I didn't see it there, yet. But the vin DTS of gose is different from koelsch, causing vin0 not to be initialized? Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds