From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13218C43381 for ; Wed, 20 Feb 2019 15:02:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C758421902 for ; Wed, 20 Feb 2019 15:02:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550674953; bh=F2+HoL9sMN276Yv/gLLCV537MpubgEZHu/3E3qU7V2s=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=KbEhIfa4ALukNSEsb/bKLR3mXFm5wqXdJMFyscIARNGdMl68JhhKRduqiuTOP6xfQ ZhWh8CouWdkkRjAeV3wiWZz+7JMzIoDyvV2sCXujNBa7FqrPQ4wwdOZ3qAK61spGiC wCNmB+NCkwUf0wDBbcPes8KP8ENsENQgVPrgU7XU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726265AbfBTPCc (ORCPT ); Wed, 20 Feb 2019 10:02:32 -0500 Received: from mail.kernel.org ([198.145.29.99]:55022 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725881AbfBTPCc (ORCPT ); Wed, 20 Feb 2019 10:02:32 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A46052147A; Wed, 20 Feb 2019 15:02:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550674951; bh=F2+HoL9sMN276Yv/gLLCV537MpubgEZHu/3E3qU7V2s=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=1oYMAWF1ZcJSXgubvf8HHjyMNeTVKtsILJzBnxterXPt+SgRX1M8GefBBh/IzXMxK AV1iYZjCX3WSm4DJPInmGLTxHGa68UmpS2KRpCaTXcCOJyGRsUIfimdAi0izuSY1AT QE3WQonpJf3DtZu1YXq/xRtatX+onx28N4Jt5ECw= Date: Wed, 20 Feb 2019 16:02:27 +0100 From: Greg Kroah-Hartman To: Nikolaus Voss Cc: Heikki Krogerus , Guenter Roeck , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, nikolaus.voss@loewensteinmedical.de Subject: Re: [PATCHv2] usb: typec: tps6598x: handle block writes separately with plain-I2C adapters Message-ID: <20190220150227.GA17103@kroah.com> References: <20180425142209.30745-1-heikki.krogerus@linux.intel.com> <20190220110017.BFA344CE86@mail.steuer-voss.de> <20190220125731.02E274CFE0@mail.steuer-voss.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190220125731.02E274CFE0@mail.steuer-voss.de> User-Agent: Mutt/1.11.3 (2019-02-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 20, 2019 at 01:57:30PM +0100, Nikolaus Voss wrote: > Commit 1a2f474d328f handles block _reads_ separately with plain-I2C > adapters, but the problem described with regmap-i2c not handling > SMBus block transfers (i.e. read and writes) correctly also exists > with writes. > > As workaround, this patch adds a block write function the same way > 1a2f474d328f adds a block read function. > > Fixes: 1a2f474d328f ("usb: typec: tps6598x: handle block reads separately with plain-I2C adapters") > Fixes: 0a4c005bd171 ("usb: typec: driver for TI TPS6598x USB Power Delivery controllers") > Signed-off-by: Nikolaus Voss > --- As was pointed out, you have to have a From: that matches a signed-off-by somewhere here. If your company email systems is horrid and can not handle patches, then put the correct from: line as the first line of the commit message as the documentation says and all will be good. > v2: fix tps6598x_exec_cmd also > --- > drivers/usb/typec/tps6598x.c | 26 ++++++++++++++++++++------ > 1 file changed, 20 insertions(+), 6 deletions(-) > > diff --git a/drivers/usb/typec/tps6598x.c b/drivers/usb/typec/tps6598x.c > index c84c8c189e90..c54b73fb2a2f 100644 > --- a/drivers/usb/typec/tps6598x.c > +++ b/drivers/usb/typec/tps6598x.c > @@ -110,6 +110,20 @@ tps6598x_block_read(struct tps6598x *tps, u8 reg, void *val, size_t len) > return 0; > } > > +static int tps6598x_block_write(struct tps6598x *tps, u8 reg, > + void *val, size_t len) > +{ > + u8 data[len + 1]; I thought the build system now warned when you did this :( thanks, greg k-h