From patchwork Tue Mar 24 22:29:39 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Srinivas Kandagatla X-Patchwork-Id: 6086611 Return-Path: X-Original-To: patchwork-linux-arm-msm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 5E099BF90F for ; Tue, 24 Mar 2015 22:33:14 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 82A5920145 for ; Tue, 24 Mar 2015 22:33:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9EDE82011E for ; Tue, 24 Mar 2015 22:33:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752423AbbCXW3s (ORCPT ); Tue, 24 Mar 2015 18:29:48 -0400 Received: from mail-wg0-f43.google.com ([74.125.82.43]:33716 "EHLO mail-wg0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753275AbbCXW3p (ORCPT ); Tue, 24 Mar 2015 18:29:45 -0400 Received: by wgbcc7 with SMTP id cc7so6548962wgb.0 for ; Tue, 24 Mar 2015 15:29:44 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=ucV/Cak+UeB6xGC+xYznojDOTIPIrqezMO9qiVSCDoI=; b=aboyT2vtemAAnveIYA9Q3Vz2rAC6UphxZ4aE5Zqbrkwrz/8/l14WL1Wzhv/XRovzuX +G7DY68gZ7TZDVaRPfCk6l0TTZQBazha0WLwoFdsrckRaOqhncVBtV5RINO3PQCFXacr HVllzwirmkqXfj5j1JQIgfKPQGdUWxqwFDf5+XT1WnmU82DvGZq7quur9MvKtSE5zrly FXlLG0vyx7RoH02E/qHyKDqY3Aye5uY9hWhlTgGwA+Q6LnAmfsENXSaQ3lfZSzSgjR4L aUfzVxdLctjOpxo0tOZo4KuJH5v1ke93mL4zuRmRtC3PPIOViiELMPo69xSZih/RiVLF lUSA== X-Gm-Message-State: ALoCoQlZJHEGgWrJ28Hhcc1TFT5fXUhmHStnTB55UhDdrZ8L+qvAqfsh4j5utb5UwcpTUXyHQ8v+ X-Received: by 10.180.160.226 with SMTP id xn2mr22227994wib.43.1427236184098; Tue, 24 Mar 2015 15:29:44 -0700 (PDT) Received: from srini-ThinkPad-X1-Carbon-2nd.dlink.com (host-2-99-228-8.as13285.net. [2.99.228.8]) by mx.google.com with ESMTPSA id ha10sm825493wjc.37.2015.03.24.15.29.42 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 24 Mar 2015 15:29:43 -0700 (PDT) From: Srinivas Kandagatla To: linux-arm-kernel@lists.infradead.org Cc: Maxime Ripard , Rob Herring , Kumar Gala , Mark Brown , Greg Kroah-Hartman , linux-api@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, arnd@arndb.de, sboyd@codeaurora.org, Srinivas Kandagatla Subject: [PATCH v3 1/9] regmap: Introduce regmap_get_max_register. Date: Tue, 24 Mar 2015 22:29:39 +0000 Message-Id: <1427236179-18580-1-git-send-email-srinivas.kandagatla@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1427236116-18531-1-git-send-email-srinivas.kandagatla@linaro.org> References: <1427236116-18531-1-git-send-email-srinivas.kandagatla@linaro.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch introduces regmap_get_max_register() function which would be used by the infrastructures like eeprom framework built on top of regmap. Signed-off-by: Srinivas Kandagatla --- drivers/base/regmap/regmap.c | 12 ++++++++++++ include/linux/regmap.h | 7 +++++++ 2 files changed, 19 insertions(+) diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index d2f8a81..6fd234b 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -2616,6 +2616,18 @@ int regmap_get_val_bytes(struct regmap *map) } EXPORT_SYMBOL_GPL(regmap_get_val_bytes); +/* + * regmap_get_max_register(): Report the max register value + * + * Report the max register value, mainly intended to for use by + * generic infrastructure built on top of regmap. + */ +int regmap_get_max_register(struct regmap *map) +{ + return map->max_register ? : -EINVAL; +} +EXPORT_SYMBOL_GPL(regmap_get_max_register); + int regmap_parse_val(struct regmap *map, const void *buf, unsigned int *val) { diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 4419b99..c46dbf3 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -433,6 +433,7 @@ int regmap_update_bits_check_async(struct regmap *map, unsigned int reg, unsigned int mask, unsigned int val, bool *change); int regmap_get_val_bytes(struct regmap *map); +int regmap_get_max_register(struct regmap *map); int regmap_async_complete(struct regmap *map); bool regmap_can_raw_write(struct regmap *map); @@ -676,6 +677,12 @@ static inline int regmap_get_val_bytes(struct regmap *map) return -EINVAL; } +static inline int regmap_get_max_register(struct regmap *map) +{ + WARN_ONCE(1, "regmap API is disabled"); + return -EINVAL; +} + static inline int regcache_sync(struct regmap *map) { WARN_ONCE(1, "regmap API is disabled");