From patchwork Thu May 21 16:42:43 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Srinivas Kandagatla X-Patchwork-Id: 6457681 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 7A5929F399 for ; Thu, 21 May 2015 16:47:28 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BACB72015A for ; Thu, 21 May 2015 16:47:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C568120499 for ; Thu, 21 May 2015 16:47:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756504AbbEUQmy (ORCPT ); Thu, 21 May 2015 12:42:54 -0400 Received: from mail-wg0-f48.google.com ([74.125.82.48]:36403 "EHLO mail-wg0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756498AbbEUQmu (ORCPT ); Thu, 21 May 2015 12:42:50 -0400 Received: by wgbgq6 with SMTP id gq6so91580934wgb.3 for ; Thu, 21 May 2015 09:42:49 -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=gwRyEnnPqmSQEefV73CmZJmMAMGFmlMTRac5kHszQW0=; b=NCi0JR0cAqgQ1pcg3Nz8Opshouevm6QJyYQE3Kp686c7ezBcpqnVEwJo8a6O3larrg 4xFyMxPNpy0xSV5+37fQgjlqZTWFa3sEme8sbYuU7tutYTl/0Hzhq0rY7lZOwF5/zTEw tTOafy5M/ckg+ltB1a4gFb9A9Ii11YJi6rEA6GVi+HQGlQsCPBvJtV4rSU3+2Rh1Ogh+ R9gpup+H2PHer8/Y0vFm8T9/znwX6f88zh39e6tVWtENAFW9Z5ooTiFpkNYVIoihTAKS OoZhRs536M/ywbyNG+kNnGPJi4+PVervabZH9a+k/vvZBFGIeNCKrJ6p+tk7SMCjzTFs YZdw== X-Gm-Message-State: ALoCoQmYWHgEUPLjEtXHylegM09OHSvbmQeKYPvJ36SGZGSdnQEDxN4+4SDxK+oFQeKfJuuC216w X-Received: by 10.194.10.72 with SMTP id g8mr6964206wjb.28.1432226569192; Thu, 21 May 2015 09:42:49 -0700 (PDT) Received: from srini-ThinkPad-X1-Carbon-2nd.dlink.com (host-2-96-95-164.as13285.net. [2.96.95.164]) by mx.google.com with ESMTPSA id gj7sm3684748wib.4.2015.05.21.09.42.46 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 21 May 2015 09:42:48 -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 , pantelis.antoniou@konsulko.com, mporter@konsulko.com Subject: [PATCH v5 01/11] regmap: Introduce regmap_get_max_register. Date: Thu, 21 May 2015 17:42:43 +0100 Message-Id: <1432226563-8689-1-git-send-email-srinivas.kandagatla@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1432226535-8640-1-git-send-email-srinivas.kandagatla@linaro.org> References: <1432226535-8640-1-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 nvmem 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 6273ff0..d6c8404 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -2613,6 +2613,18 @@ 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 ? 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");