From patchwork Mon Jan 5 12:19:04 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Szyprowski X-Patchwork-Id: 5567721 Return-Path: X-Original-To: patchwork-linux-samsung-soc@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 A05E49F2ED for ; Mon, 5 Jan 2015 12:21:54 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id DF1FB2017E for ; Mon, 5 Jan 2015 12:21:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8B4482015A for ; Mon, 5 Jan 2015 12:21:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753867AbbAEMVQ (ORCPT ); Mon, 5 Jan 2015 07:21:16 -0500 Received: from mailout3.w1.samsung.com ([210.118.77.13]:44743 "EHLO mailout3.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753510AbbAEMTW (ORCPT ); Mon, 5 Jan 2015 07:19:22 -0500 Received: from eucpsbgm1.samsung.com (unknown [203.254.199.244]) by mailout3.w1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0NHP00EAZEF0F7B0@mailout3.w1.samsung.com>; Mon, 05 Jan 2015 12:23:24 +0000 (GMT) X-AuditID: cbfec7f4-b7f126d000001e9a-09-54aa8148ad77 Received: from eusync2.samsung.com ( [203.254.199.212]) by eucpsbgm1.samsung.com (EUCPMTA) with SMTP id 3E.C8.07834.8418AA45; Mon, 05 Jan 2015 12:19:20 +0000 (GMT) Received: from amdc1339.digital.local ([106.116.147.30]) by eusync2.samsung.com (Oracle Communications Messaging Server 7u4-23.01 (7.0.4.23.0) 64bit (built Aug 10 2011)) with ESMTPA id <0NHP00AYXE7XH550@eusync2.samsung.com>; Mon, 05 Jan 2015 12:19:20 +0000 (GMT) From: Marek Szyprowski To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Marek Szyprowski , Tomasz Figa , Kyungmin Park , linux-samsung-soc@vger.kernel.org, linux-omap@vger.kernel.org, Arnd Bergmann , Olof Johansson , Russell King - ARM Linux , Kukjin Kim , lauraa@codeaurora.org, linus.walleij@linaro.org, tony@atomide.com, drake@endlessm.com, loeliger@gmail.com, Mark Rutland , nm@ti.com, khilman@linaro.org Subject: [PATCH v11 5/9] ARM: l2c: Get outer cache .write_sec callback from mach_desc only if not NULL Date: Mon, 05 Jan 2015 13:19:04 +0100 Message-id: <1420460348-20302-6-git-send-email-m.szyprowski@samsung.com> X-Mailer: git-send-email 1.9.2 In-reply-to: <1420460348-20302-1-git-send-email-m.szyprowski@samsung.com> References: <1420460348-20302-1-git-send-email-m.szyprowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrGLMWRmVeSWpSXmKPExsVy+t/xK7oejatCDC6cZ7f4O+kYu8Wj+Y+Z LXoXXGWz+Hp4BaPF2aY37BbbO2ewW0z5s5zJYtPja6wWl3fNYbOYvaSfxWLG+X1MFrcv81qc 276FxWLtkbvsFkuvX2SyePPjLJPFqeuf2SxW7frDaLH/ipeDsMeaeWsYPVqae9g8fv+axOjx 7eskFo/Lfb1MHou+Z3nsnHWX3ePOtT1sHpuX1HtcOdHE6tG3ZRWjx/Eb25k8Pm+SC+CN4rJJ Sc3JLEst0rdL4Mr4dWY6e8FvzopVs78zNjBu5ehi5OSQEDCR2LuniwXCFpO4cG89WxcjF4eQ wFJGiY4/e1ghnD4miZdHD7ODVLEJGEp0ve1iA7FFBNwk/q07BNbBLDCNRWLTkfPMIAlhgQyJ VWsXMHYxcnCwCKhKrHnpBhLmFfCQePX+CdQ2OYn/L1cwgdicAp4SS/fuA5svBFRz5tZa9gmM vAsYGVYxiqaWJhcUJ6XnGuoVJ+YWl+al6yXn525ihMTFlx2Mi49ZHWIU4GBU4uH1OLEyRIg1 say4MvcQowQHs5II76v0VSFCvCmJlVWpRfnxRaU5qcWHGJk4OKUaGHPe6bQuX/XhcWFObmwg h+GqniS/iS6PbNRkJcUfaZ2bwTw7Msdjn0eRUefUDzVtLOl7M/NPyBrHJbjPVZIzLbxjf3av nM/p7FDF8pbOr87LZj6/ckeoQDleuuKC1aWuS1dsQs6LbjAOrg8/a7+MsesFV2vwWbZ7xmJN rIFu7ll9VzfN9hRRYinOSDTUYi4qTgQA7LmTjWkCAAA= Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_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 From: Tomasz Figa Certain platforms (i.e. Exynos) might need to set .write_sec callback from firmware initialization which is happenning in .init_early callback of machine descriptor. However current code will overwrite the pointer with whatever is present in machine descriptor, even though it can be already set earlier. This patch fixes this by making the assignment conditional, depending on whether current .write_sec callback is NULL. Signed-off-by: Tomasz Figa Signed-off-by: Marek Szyprowski Acked-by: Tony Lindgren --- arch/arm/kernel/irq.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c index ad857bada96c..350f188c92d2 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c @@ -109,7 +109,8 @@ void __init init_IRQ(void) if (IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_CACHE_L2X0) && (machine_desc->l2c_aux_mask || machine_desc->l2c_aux_val)) { - outer_cache.write_sec = machine_desc->l2c_write_sec; + if (!outer_cache.write_sec) + outer_cache.write_sec = machine_desc->l2c_write_sec; ret = l2x0_of_init(machine_desc->l2c_aux_val, machine_desc->l2c_aux_mask); if (ret)