From patchwork Thu Sep 29 14:28:55 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 9356469 X-Patchwork-Delegate: sboyd@codeaurora.org Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 2BB236077A for ; Thu, 29 Sep 2016 14:29:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1AEC329AD4 for ; Thu, 29 Sep 2016 14:29:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0CF5429ADB; Thu, 29 Sep 2016 14:29:25 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F100129AD4 for ; Thu, 29 Sep 2016 14:29:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932701AbcI2O3U (ORCPT ); Thu, 29 Sep 2016 10:29:20 -0400 Received: from down.free-electrons.com ([37.187.137.238]:44734 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932600AbcI2O3T (ORCPT ); Thu, 29 Sep 2016 10:29:19 -0400 Received: by mail.free-electrons.com (Postfix, from userid 110) id 29B70EE8; Thu, 29 Sep 2016 16:29:16 +0200 (CEST) Received: from localhost (83.146.29.93.rev.sfr.net [93.29.146.83]) by mail.free-electrons.com (Postfix) with ESMTPSA id DBD203D7; Thu, 29 Sep 2016 16:29:05 +0200 (CEST) From: Gregory CLEMENT To: Mike Turquette , Stephen Boyd , linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Jason Cooper , Andrew Lunn , Sebastian Hesselbarth , Gregory CLEMENT , Thomas Petazzoni , linux-arm-kernel@lists.infradead.org Subject: [PATCH] clk: mvebu: armada-37xx-periph: Fix the clock provider registration Date: Thu, 29 Sep 2016 16:28:55 +0200 Message-Id: <20160929142855.30408-1-gregory.clement@free-electrons.com> X-Mailer: git-send-email 2.9.3 Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP While trying using a peripheral clock on a driver, I saw that the clock pointer returned by the provider was NULL. The problem was a missing indirection. It was the pointer stored in the hws array which needed to be updated not the value it contains. Signed-off-by: Gregory CLEMENT --- drivers/clk/mvebu/armada-37xx-periph.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/clk/mvebu/armada-37xx-periph.c b/drivers/clk/mvebu/armada-37xx-periph.c index 45905fc0d75b..d5dfbad4ceab 100644 --- a/drivers/clk/mvebu/armada-37xx-periph.c +++ b/drivers/clk/mvebu/armada-37xx-periph.c @@ -305,7 +305,7 @@ static const struct of_device_id armada_3700_periph_clock_of_match[] = { }; static int armada_3700_add_composite_clk(const struct clk_periph_data *data, void __iomem *reg, spinlock_t *lock, - struct device *dev, struct clk_hw *hw) + struct device *dev, struct clk_hw **hw) { const struct clk_ops *mux_ops = NULL, *gate_ops = NULL, *rate_ops = NULL; @@ -353,13 +353,13 @@ static int armada_3700_add_composite_clk(const struct clk_periph_data *data, } } - hw = clk_hw_register_composite(dev, data->name, data->parent_names, + *hw = clk_hw_register_composite(dev, data->name, data->parent_names, data->num_parents, mux_hw, mux_ops, rate_hw, rate_ops, gate_hw, gate_ops, CLK_IGNORE_UNUSED); - if (IS_ERR(hw)) - return PTR_ERR(hw); + if (IS_ERR(*hw)) + return PTR_ERR(*hw); return 0; } @@ -400,7 +400,7 @@ static int armada_3700_periph_clock_probe(struct platform_device *pdev) spin_lock_init(&driver_data->lock); for (i = 0; i < num_periph; i++) { - struct clk_hw *hw = driver_data->hw_data->hws[i]; + struct clk_hw **hw = &driver_data->hw_data->hws[i]; if (armada_3700_add_composite_clk(&data[i], reg, &driver_data->lock, dev, hw))