From patchwork Thu Aug 17 05:59:11 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heiner Kallweit X-Patchwork-Id: 802345 X-Patchwork-Delegate: bartekgola@gmail.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="Kldqb3lu"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3xXwXZ3tTNz9t3D for ; Thu, 17 Aug 2017 15:59:42 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751169AbdHQF7l (ORCPT ); Thu, 17 Aug 2017 01:59:41 -0400 Received: from mail-wr0-f196.google.com ([209.85.128.196]:35769 "EHLO mail-wr0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750993AbdHQF7k (ORCPT ); Thu, 17 Aug 2017 01:59:40 -0400 Received: by mail-wr0-f196.google.com with SMTP id p8so442624wrf.2 for ; Wed, 16 Aug 2017 22:59:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:subject:to:cc:references:message-id:date:user-agent :mime-version:in-reply-to:content-transfer-encoding; bh=wTDl4N+5mGYz6FvHj0GZMY4VX+Rky1npdMqz0l2BQv4=; b=Kldqb3luye/xX2AA16lZhpLvefpCLq7HQPddCph+Ak3kI1lONJErBfgeFBnTLfvonM gBE9A9n/RZUHwyGOZId0/45iYIa0L4rZE7s8XB3+ZPyHh4SkNTvtd//zVAwyWLuEm859 cxOft/8a14yWd2MOENOcPJ9xTt7kXQn+CXPLlY8pcH3cc72ptpxqCzSu/Anujr+08uLY FpK8BJsuP3EDpBsDnh/oN2D3q98XcAe6WpwIomau08gXhNvGDzMlXIm+m+ASglh1fsfK EaFzCoS8Av9Ri4/Dt4Xbx9nhMrn3dZERhoffoRjbzD9FX6pa1xVBfhE2IeMN+9euKAr0 0JHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:subject:to:cc:references:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding; bh=wTDl4N+5mGYz6FvHj0GZMY4VX+Rky1npdMqz0l2BQv4=; b=BWxexTjjmScWzgmUOj2KS+qpgRUXwMfshrc51mtirU2ZE4Wan8c97Xg3xTmyUKny+4 d9RU+rOFd36oabxhVQMEhukzr1HKQxHLR1N9seVYJtC7x06NaiEeN/5t8F7cAZHHUjEh 9EXp6IohLA/yL9zCKCUK/ZsldJT4jWed6SbMU0vuRQeVrWqBgf08SX6CYg6oB7oa10LJ b28FMCybJU5RG3+LLPVaMMDyUWKTv+HMQz9+iSxkdf8UvgGdHR14/Mi1pvMi2yG+ewkq KP0ZeF6iEOl8UEWneCxBj7k74QAYkFye6M2s0TvjZi2e4iggM1hSkEqS8xdWGAUGYytu /COA== X-Gm-Message-State: AHYfb5jobx/Ry/pCtGWACxE+lJBrtm3/VcZuUjQY/0eTHQ+VajVOmU8O 0zl1/XM2vKACIxxf X-Received: by 10.223.188.8 with SMTP id s8mr2347773wrg.271.1502949579430; Wed, 16 Aug 2017 22:59:39 -0700 (PDT) Received: from ?IPv6:2003:ea:8bc7:5e00:b1d4:11c8:15b6:16bf? (p200300EA8BC75E00B1D411C815B616BF.dip0.t-ipconnect.de. [2003:ea:8bc7:5e00:b1d4:11c8:15b6:16bf]) by smtp.googlemail.com with ESMTPSA id o30sm2913451wrb.76.2017.08.16.22.59.38 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 16 Aug 2017 22:59:39 -0700 (PDT) From: Heiner Kallweit Subject: [PATCH RFC 3/7] eeprom: at24: add regmap-based write function To: Wolfram Sang Cc: "linux-i2c@vger.kernel.org" References: <2e264f77-2316-b6b6-e66c-b162f77d81de@gmail.com> Message-ID: Date: Thu, 17 Aug 2017 07:59:11 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 MIME-Version: 1.0 In-Reply-To: <2e264f77-2316-b6b6-e66c-b162f77d81de@gmail.com> Sender: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Add a regmap-based write function. Signed-off-by: Heiner Kallweit --- drivers/misc/eeprom/at24.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c index 7cd746de..4e4225b2 100644 --- a/drivers/misc/eeprom/at24.c +++ b/drivers/misc/eeprom/at24.c @@ -465,6 +465,22 @@ static ssize_t at24_eeprom_write_smbus_byte(struct at24_data *at24, return -ETIMEDOUT; } +static ssize_t at24_regmap_write(struct at24_data *at24, const char *buf, + unsigned int offset, size_t count) +{ + unsigned long timeout, write_time; + struct regmap *regmap; + + regmap = at24_translate_offset(at24, &offset)->regmap; + count = at24_adjust_write_count(at24, offset, count); + + loop_until_timeout(timeout, write_time) + if (!regmap_bulk_write(regmap, offset, buf, count)) + return count; + + return -ETIMEDOUT; +} + static ssize_t at24_eeprom_write_i2c(struct at24_data *at24, const char *buf, unsigned int offset, size_t count) { @@ -553,7 +569,7 @@ static int at24_write(void *priv, unsigned int off, void *val, size_t count) while (count) { int status; - status = at24->write_func(at24, buf, off, count); + status = at24_regmap_write(at24, buf, off, count); if (status < 0) { mutex_unlock(&at24->lock); return status;