From patchwork Wed Apr 9 13:51:16 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris BREZILLON X-Patchwork-Id: 3955491 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 [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 82AFA9F371 for ; Wed, 9 Apr 2014 13:52:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BCD9A2051F for ; Wed, 9 Apr 2014 13:52:41 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 772142051C for ; Wed, 9 Apr 2014 13:52:39 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WXsvb-0002LK-FV; Wed, 09 Apr 2014 13:52:35 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WXsvZ-0002np-4r; Wed, 09 Apr 2014 13:52:33 +0000 Received: from top.free-electrons.com ([176.31.233.9] helo=mail.free-electrons.com) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WXsvI-0002i5-4T for linux-arm-kernel@lists.infradead.org; Wed, 09 Apr 2014 13:52:19 +0000 Received: by mail.free-electrons.com (Postfix, from userid 106) id 72A029C9; Wed, 9 Apr 2014 15:51:38 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-4.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from localhost.localdomain (col31-4-88-188-83-94.fbx.proxad.net [88.188.83.94]) by mail.free-electrons.com (Postfix) with ESMTPSA id D6E977FC; Wed, 9 Apr 2014 15:51:37 +0200 (CEST) From: Boris BREZILLON To: Randy Dunlap , Maxime Ripard , =?UTF-8?q?Emilio=20L=C3=B3pez?= , Mike Turquette , Linus Walleij Subject: [PATCH 13/15] pinctrl: sunxi: retrieve and enable PL reset line for A31 SoC Date: Wed, 9 Apr 2014 15:51:16 +0200 Message-Id: <1397051478-4113-14-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1397051478-4113-1-git-send-email-boris.brezillon@free-electrons.com> References: <1397051478-4113-1-git-send-email-boris.brezillon@free-electrons.com> X-Spam-Note: CRM114 invocation failed X-Spam-Score: -1.5 (-) Cc: devicetree@vger.kernel.org, Boris BREZILLON , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Retrieve and deassert the reset line related to PL pins. Signed-off-by: Boris BREZILLON --- drivers/pinctrl/pinctrl-sunxi.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/pinctrl/pinctrl-sunxi.c b/drivers/pinctrl/pinctrl-sunxi.c index da76ceb..09eea79 100644 --- a/drivers/pinctrl/pinctrl-sunxi.c +++ b/drivers/pinctrl/pinctrl-sunxi.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include "core.h" @@ -878,6 +879,7 @@ static int sunxi_pinctrl_probe(struct platform_device *pdev) const struct of_device_id *device; struct pinctrl_pin_desc *pins; struct sunxi_pinctrl *pctl; + struct reset_control *rstc; int i, ret, last_pin; struct clk *clk; @@ -905,6 +907,14 @@ static int sunxi_pinctrl_probe(struct platform_device *pdev) ret = clk_prepare_enable(clk); if (ret) return ret; + + rstc = devm_reset_control_get(&pdev->dev, NULL); + if (IS_ERR(rstc)) + return PTR_ERR(rstc); + + ret = reset_control_deassert(rstc); + if (ret) + return ret; } else { pctl->get_membase = sunxi_pinctrl_get_membase; }