From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-pa0-x243.google.com ([2607:f8b0:400e:c03::243]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1bNZsD-0006d9-Te for barebox@lists.infradead.org; Thu, 14 Jul 2016 06:11:51 +0000 Received: by mail-pa0-x243.google.com with SMTP id ez1so708256pab.3 for ; Wed, 13 Jul 2016 23:11:29 -0700 (PDT) From: Andrey Smirnov Date: Wed, 13 Jul 2016 23:11:00 -0700 Message-Id: <1468476665-26409-2-git-send-email-andrew.smirnov@gmail.com> In-Reply-To: <1468476665-26409-1-git-send-email-andrew.smirnov@gmail.com> References: <1468476665-26409-1-git-send-email-andrew.smirnov@gmail.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 2/7] mfd: syscon: Don't call request_iomem_region() To: barebox@lists.infradead.org Cc: Andrey Smirnov On platforms that mix dedicated IP block register space with miscellaneous registers it is necessary to share register window between syscon and dedicated IP block driver. Calling request_iomem_region() implies exclusive ownership of the region, which, in the case above could not happen. This change also makes this driver's behaviour to that of its Linux kernel counterpart. Suggested-by: Sascha Hauer Signed-off-by: Andrey Smirnov --- drivers/mfd/syscon.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/mfd/syscon.c b/drivers/mfd/syscon.c index 9589a03..ac46122 100644 --- a/drivers/mfd/syscon.c +++ b/drivers/mfd/syscon.c @@ -76,12 +76,6 @@ static int syscon_probe(struct device_d *dev) return PTR_ERR(res); } - res = request_iomem_region(dev_name(dev), res->start, res->end); - if (IS_ERR(res)) { - free(syscon); - return PTR_ERR(res); - } - syscon->base = (void __iomem *)res->start; dev->priv = syscon; -- 2.5.5 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox