Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753813AbcC2TDc (ORCPT ); Tue, 29 Mar 2016 15:03:32 -0400 Received: from mezzanine.sirena.org.uk ([106.187.55.193]:52930 "EHLO mezzanine.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752432AbcC2TDb (ORCPT ); Tue, 29 Mar 2016 15:03:31 -0400 Date: Tue, 29 Mar 2016 12:03:19 -0700 From: Mark Brown To: Laxman Dewangan , "Maciej S. Szmigiero" , Lee Jones , Stephen Warren , Thierry Reding , Alexandre Courbot Cc: linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, Liam Girdwood Message-ID: <20160329190319.GE2350@sirena.org.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="z3ND3gJe4e1E4uwh" Content-Disposition: inline X-Cookie: If anything can go wrong, it will. User-Agent: Mutt/1.5.24 (2015-08-30) X-SA-Exim-Connect-IP: 64.55.107.4 X-SA-Exim-Mail-From: broonie@sirena.org.uk Subject: Tegra boots failing due to as3722 I/O errors X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: Yes (on mezzanine.sirena.org.uk) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1637 Lines: 42 --z3ND3gJe4e1E4uwh Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi, Currently the Jetson TK1 is failing to get regulators for MMC with at least my regulator tree and probably -next also due to: [ 1.665750] as3722 4-0040: AS3722 with revision 0x1 found [ 1.682945] +VDDIO_SDMMC3: failed to get the current voltage(-22) [ 1.689135] as3722-regulator as3722-regulator: regulator 13 register failed -22 [ 1.697593] as3722-regulator: probe of as3722-regulator failed with error -22 The get voltage operation here is just a simple mapping of a bitfield in the regmap which suggests that the underlying problem is somewhere further down the stack like the MFD or I2C drivers. The error is -EINVAL which suggests something like the register not being marked as readable but the _VOLTAGE_REG registers appear to be marked as readable in the MFD. Full log for one boot at: https://storage.kernelci.org/broonie-regulator/v4.6-rc1-24-ga7e614dd1f91/arm-multi_v7_defconfig+CONFIG_SMP=n/lab-mhart/boot-tegra124-jetson-tk1.html --z3ND3gJe4e1E4uwh Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBCAAGBQJW+tF2AAoJECTWi3JdVIfQKJIH/3fQx3h0JjeVZh9r71H6Ltly 3fHrTFuGSST9CmcAdLouJvmhNls3hhnQ2bAHmqL7VRtsDE39gD9LzbWuG1v5i/Zn R5Qr6zTDqjI+047va0P1NQcVq8tFy//TcS3kd9H4dWHSVaQX3ge+zjNZzVfOZ1sU /AzQJ6JxJqUlGPsHvl/fe2xjfE5kl9qBJZzi5QIve/owHwtzIYHb1qucbGEwsLT0 MJUNqmRK52FpPHJGguw0jGLXLW+rsTirvYmGgSt8U9sruclaoIKxggRg/7nlqoXo iFKhuzkNXeF8pqlIGRTrddJjv4GpHPmyH65Cnj2uToMgpGNnr11SbkPUKaOPKYs= =l9Hy -----END PGP SIGNATURE----- --z3ND3gJe4e1E4uwh--