From patchwork Fri Aug 21 08:26:43 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Pargmann X-Patchwork-Id: 7049811 Return-Path: X-Original-To: patchwork-linux-arm@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 18D9D9F373 for ; Fri, 21 Aug 2015 08:29:23 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 53280203E3 for ; Fri, 21 Aug 2015 08:29:22 +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 6242420612 for ; Fri, 21 Aug 2015 08:29:21 +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 1ZShfn-0001xr-HQ; Fri, 21 Aug 2015 08:27:39 +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 1ZShfb-0001pt-88 for linux-arm-kernel@lists.infradead.org; Fri, 21 Aug 2015 08:27:27 +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 1ZShf8-0005vl-FA; Fri, 21 Aug 2015 10:26:58 +0200 Received: from mpa by dude.hi.pengutronix.de with local (Exim 4.86) (envelope-from ) id 1ZShf6-000851-Rf; Fri, 21 Aug 2015 10:26:56 +0200 From: Markus Pargmann To: Mark Brown Subject: [PATCH v3 4/4] regmap: No multi_write support if bus->write does not exist Date: Fri, 21 Aug 2015 10:26:43 +0200 Message-Id: <1440145603-9612-5-git-send-email-mpa@pengutronix.de> X-Mailer: git-send-email 2.4.6 In-Reply-To: <1440145603-9612-1-git-send-email-mpa@pengutronix.de> References: <1440145603-9612-1-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-20150821_012727_482704_F6826F20 X-CRM114-Status: GOOD ( 11.13 ) 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: kernel@pengutronix.de, Markus Pargmann , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Irina Tirdea 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=-5.0 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 There is no multi_write support available if we cannot use raw_write. This is the case if bus->write is not implemented. This patch adds a condition that we need bus and bus->write so that can_multi_write is true. Signed-off-by: Markus Pargmann --- drivers/base/regmap/regmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 75080774bf46..47fe0dfbbc46 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -575,7 +575,7 @@ struct regmap *regmap_init(struct device *dev, map->reg_stride = 1; map->use_single_read = config->use_single_rw || !bus || !bus->read; map->use_single_write = config->use_single_rw || !bus || !bus->write; - map->can_multi_write = config->can_multi_write; + map->can_multi_write = config->can_multi_write && bus && bus->write; map->dev = dev; map->bus = bus; map->bus_context = bus_context;