From patchwork Thu Nov 13 13:18:10 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Szyprowski X-Patchwork-Id: 5296841 Return-Path: X-Original-To: patchwork-linux-samsung-soc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 1E3CDC11AC for ; Thu, 13 Nov 2014 13:20:09 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C8F6320211 for ; Thu, 13 Nov 2014 13:20:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 13125201FA for ; Thu, 13 Nov 2014 13:20:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933118AbaKMNTh (ORCPT ); Thu, 13 Nov 2014 08:19:37 -0500 Received: from mailout4.w1.samsung.com ([210.118.77.14]:27097 "EHLO mailout4.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932827AbaKMNS0 (ORCPT ); Thu, 13 Nov 2014 08:18:26 -0500 Received: from eucpsbgm2.samsung.com (unknown [203.254.199.245]) by mailout4.w1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0NEZ00MDIBR8F540@mailout4.w1.samsung.com>; Thu, 13 Nov 2014 13:21:08 +0000 (GMT) X-AuditID: cbfec7f5-b7f956d000005ed7-2f-5464af9f99ed Received: from eusync1.samsung.com ( [203.254.199.211]) by eucpsbgm2.samsung.com (EUCPMTA) with SMTP id 1D.B0.24279.F9FA4645; Thu, 13 Nov 2014 13:18:23 +0000 (GMT) Received: from amdc1339.digital.local ([106.116.147.30]) by eusync1.samsung.com (Oracle Communications Messaging Server 7u4-23.01 (7.0.4.23.0) 64bit (built Aug 10 2011)) with ESMTPA id <0NEZ00I3CBMFKS20@eusync1.samsung.com>; Thu, 13 Nov 2014 13:18:22 +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, Arnd Bergmann , Olof Johansson , Russell King - ARM Linux , Kukjin Kim , lauraa@codeaurora.org, linux-omap@vger.kernel.org, linus.walleij@linaro.org, tony@atomide.com, drake@endlessm.com, loeliger@gmail.com, Mark Rutland Subject: [PATCH v8 3/7] ARM: l2c: Get outer cache .write_sec callback from mach_desc only if not NULL Date: Thu, 13 Nov 2014 14:18:10 +0100 Message-id: <1415884694-5868-4-git-send-email-m.szyprowski@samsung.com> X-Mailer: git-send-email 1.9.2 In-reply-to: <1415884694-5868-1-git-send-email-m.szyprowski@samsung.com> References: <1415884694-5868-1-git-send-email-m.szyprowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrGLMWRmVeSWpSXmKPExsVy+t/xy7rz16eEGOxbzGLxd9IxdotH8x8z W/QuuMpmcbbpDbvF9s4Z7BZT/ixnstj0+BqrxeVdc9gsZi/pZ7GYcX4fk8Xty7wW57ZvYbFY e+Quu8XS6xeZLE5d/8xmsWrXH0aL/Ve8HAQ91sxbw+jR0tzD5vH71yRGj29fJ7F4XO7rZfJY 9D3LY+esu+wed67tYfPYvKTe48qJJlaPvi2rGD0+b5IL4InisklJzcksSy3St0vgyrj/5RZb wW/OigVf/zE1MG7l6GLk5JAQMJG4ceYTG4QtJnHh3nowW0hgKaPE5J1SXYxcQHYfk8Sa9mVg CTYBQ4mut11gtoiAm8S/dYfYQIqYBT4zS1x6tIYVJCEskC5xYM0GMJtFQFXi69tW5i5GDg5e AXeJA6vqIZbJSfx/uYIJxOYU8JD4sv4PK8Rid4n2XYcZJzDyLmBkWMUomlqaXFCclJ5rpFec mFtcmpeul5yfu4kREvZfdzAuPWZ1iFGAg1GJh/cDd0qIEGtiWXFl7iFGCQ5mJRHeNyuBQrwp iZVVqUX58UWlOanFhxiZODilGhgnXtx1e0nh7BVsrsWSl8tmTi2YWvWrJuvcsdCUmWtjDpu3 7lFtlm/U27Nsr3sC+0S9Nu8Ff+WvF4bNiHYplbwasOgQQ6uf7Tnboq8X+luV2J/fFKre9F81 vFhH+NcPpxN3c9+GJZ8pWyIVyXev8+ZvlQA21kwt5mnWOryyVvF3DqpNO7gxNU+JpTgj0VCL uag4EQAU+zM3WQIAAA== 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=-7.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, 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 --- 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 7c81ec428b9b..5acb8aef6f2d 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c @@ -108,7 +108,8 @@ 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)