From patchwork Mon Mar 30 21:56:27 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Srinivas Kandagatla X-Patchwork-Id: 6125871 Return-Path: X-Original-To: patchwork-linux-arm-msm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id D03DB9F349 for ; Mon, 30 Mar 2015 22:01:02 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E687020445 for ; Mon, 30 Mar 2015 22:01:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 04C182043C for ; Mon, 30 Mar 2015 22:01:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752830AbbC3WA7 (ORCPT ); Mon, 30 Mar 2015 18:00:59 -0400 Received: from mail-wi0-f169.google.com ([209.85.212.169]:37547 "EHLO mail-wi0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753465AbbC3V4d (ORCPT ); Mon, 30 Mar 2015 17:56:33 -0400 Received: by wiaa2 with SMTP id a2so2393390wia.0 for ; Mon, 30 Mar 2015 14:56:32 -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=/zfqfHZrYCiFrdX6c2yYnG55dVk2tpWF9cUGKsqsVXs=; b=IP/GZa8atulkaa7q7LeJ+cJYBVh/XmTUJkmyRPfVlo6zvdDMjt8oHLL8mgyZAZYhR3 QV+8vq5/bXsg9vqhY1OHJFtVVhEYudRVtrTlccW+4lSCIVuP+ue7tExUeG8KJD1vZkd0 eR27/z15tm0KdFEmVdZITkTMVtM1xSXp0nGmS5b9wcVGucZpv6DWQrwwGjruG1+A6BSp qz3QZEKJlredotSYDqY+dSmVXHtEo16miRnTvOjx2OtWXTe0bDWV6Jz/KBtX74GDsWkS WxNFg5Wk3ZV6EC1zSWp+dm9T87NoqeHSNQtMUhR4QkJOXDV/EU1yZtYpN8IGZK70JiG7 ULnA== X-Gm-Message-State: ALoCoQlrs/QkX8i0KCss8GfFNZviRF/TTxAahl9I9RZ/vOg03S+7O4swDWVn+sUG27/gA2cXBnl/ X-Received: by 10.180.74.135 with SMTP id t7mr26543835wiv.72.1427752592058; Mon, 30 Mar 2015 14:56:32 -0700 (PDT) Received: from srini-ThinkPad-X1-Carbon-2nd.dlink.com (host-78-145-247-151.as13285.net. [78.145.247.151]) by mx.google.com with ESMTPSA id k1sm17536083wjn.9.2015.03.30.14.56.30 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 30 Mar 2015 14:56:31 -0700 (PDT) From: Srinivas Kandagatla To: linux-arm-kernel@lists.infradead.org Cc: Maxime Ripard , Rob Herring , Kumar Gala , Mark Brown , s.hauer@pengutronix.de, 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 v4 01/10] regmap: Introduce regmap_get_max_register. Date: Mon, 30 Mar 2015 22:56:27 +0100 Message-Id: <1427752587-17087-1-git-send-email-srinivas.kandagatla@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1427752492-17039-1-git-send-email-srinivas.kandagatla@linaro.org> References: <1427752492-17039-1-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 f99b098..d703921 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -2617,6 +2617,18 @@ 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 116655d..2d87ded 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");