Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933486AbbHLKQy (ORCPT ); Wed, 12 Aug 2015 06:16:54 -0400 Received: from metis.ext.pengutronix.de ([92.198.50.35]:43741 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753694AbbHLKNt (ORCPT ); Wed, 12 Aug 2015 06:13:49 -0400 From: Markus Pargmann To: Mark Brown , Jonathan Cameron Cc: Srinivas Pandruvada , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de, Markus Pargmann Subject: [PATCH 07/20] regmap: Without bus read() or write(), force use_single_rw Date: Wed, 12 Aug 2015 12:12:32 +0200 Message-Id: <1439374365-20623-8-git-send-email-mpa@pengutronix.de> X-Mailer: git-send-email 2.4.6 In-Reply-To: <1439374365-20623-1-git-send-email-mpa@pengutronix.de> References: <1439374365-20623-1-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-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1224 Lines: 33 The implementation of regmap bus read() and write() methods are optional. Therefore we have to handle busses which do not have these functions. If raw read() and write() is not supported we have to use reg_read and reg_write always. This patch sets use_single_rw if read() or write() is not set. 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 f98bd5bf5c62..35ad3783da70 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -573,7 +573,7 @@ struct regmap *regmap_init(struct device *dev, map->reg_stride = config->reg_stride; else map->reg_stride = 1; - map->use_single_rw = config->use_single_rw; + map->use_single_rw = config->use_single_rw || !bus->read || !bus->write; map->can_multi_write = config->can_multi_write; map->dev = dev; map->bus = bus; -- 2.4.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/