From patchwork Thu Aug 20 10:00:05 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Pargmann X-Patchwork-Id: 7043381 Return-Path: X-Original-To: patchwork-linux-arm@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 B26C2C05AC for ; Thu, 20 Aug 2015 10:02:58 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id CE4A720120 for ; Thu, 20 Aug 2015 10:02:57 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E157A20218 for ; Thu, 20 Aug 2015 10:02:56 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZSMes-0007zE-03; Thu, 20 Aug 2015 10:01:18 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZSMeP-0007Yh-Jc for linux-arm-kernel@lists.infradead.org; Thu, 20 Aug 2015 10:00:50 +0000 Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1ZSMdv-0001X8-Lz; Thu, 20 Aug 2015 12:00:19 +0200 Received: from mpa by dude.hi.pengutronix.de with local (Exim 4.86) (envelope-from ) id 1ZSMdu-0002Qs-8x; Thu, 20 Aug 2015 12:00:18 +0200 From: Markus Pargmann To: Mark Brown Subject: [PATCH v2 2/4] regmap: regmap max_raw_read/write getter functions Date: Thu, 20 Aug 2015 12:00:05 +0200 Message-Id: <1440064807-26346-3-git-send-email-mpa@pengutronix.de> X-Mailer: git-send-email 2.4.6 In-Reply-To: <1440064807-26346-1-git-send-email-mpa@pengutronix.de> References: <1440064807-26346-1-git-send-email-mpa@pengutronix.de> X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: mpa@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150820_030049_859142_9B02CA23 X-CRM114-Status: GOOD ( 10.83 ) X-Spam-Score: -2.5 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Irina Tirdea , Wolfram Sang , linux-kernel@vger.kernel.org, kernel@pengutronix.de, Markus Pargmann , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.8 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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 Add functions to access the maximum size we can read/write using regmap_raw_read/write(). This helps drivers that need to know how much they can write with the raw functions without problems. There are some devices (e.g. bmc150) that have fifos as registers which need to be read in specific chunks otherwise samples are dropped. Signed-off-by: Markus Pargmann --- drivers/base/regmap/regmap.c | 22 ++++++++++++++++++++++ include/linux/regmap.h | 2 ++ 2 files changed, 24 insertions(+) diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index bb2bfadfb4a3..99f5f1165b60 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -1390,6 +1390,28 @@ bool regmap_can_raw_write(struct regmap *map) } EXPORT_SYMBOL_GPL(regmap_can_raw_write); +/** + * regmap_get_raw_read_max - Get the maximum size we can read + * + * @map: Map to check. + */ +size_t regmap_get_raw_read_max(struct regmap *map) +{ + return map->max_raw_read; +} +EXPORT_SYMBOL_GPL(regmap_get_raw_read_max); + +/** + * regmap_get_raw_write_max - Get the maximum size we can read + * + * @map: Map to check. + */ +size_t regmap_get_raw_write_max(struct regmap *map) +{ + return map->max_raw_write; +} +EXPORT_SYMBOL_GPL(regmap_get_raw_write_max); + static int _regmap_bus_formatted_write(void *context, unsigned int reg, unsigned int val) { diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 6c9de3e8dd6e..9a49a2e22cc0 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -443,6 +443,8 @@ int regmap_get_max_register(struct regmap *map); int regmap_get_reg_stride(struct regmap *map); int regmap_async_complete(struct regmap *map); bool regmap_can_raw_write(struct regmap *map); +size_t regmap_get_raw_read_max(struct regmap *map); +size_t regmap_get_raw_write_max(struct regmap *map); int regcache_sync(struct regmap *map); int regcache_sync_region(struct regmap *map, unsigned int min,