From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0847DC10F05 for ; Sat, 30 Mar 2019 00:54:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C641721906 for ; Sat, 30 Mar 2019 00:54:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1553907261; bh=A3UbMDlX/zOx2baCLKE1JZLZ3LxQVFy5CGV83wDXRNI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=U09esCjc5VkqIMJHeg+nDVEsbqQpq7k3aqiGtM/u6SCFcn4oCok8eY49Mnytpmcak Bf3R5gES2Xot5Rv99wBgAOo/3KVVcxd7CBO9GpGNqghv7JXTvkgklguUsNpVHiJhpc JF9ImGYD/6YpDf8BJT488O6GAZrwBVEoqK0E0V/8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731495AbfC3AyU (ORCPT ); Fri, 29 Mar 2019 20:54:20 -0400 Received: from mail.kernel.org ([198.145.29.99]:33218 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731493AbfC3AyT (ORCPT ); Fri, 29 Mar 2019 20:54:19 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 31293218D3; Sat, 30 Mar 2019 00:54:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1553907258; bh=A3UbMDlX/zOx2baCLKE1JZLZ3LxQVFy5CGV83wDXRNI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KGSusXO7wWWKjanGhA9J5QKIW1bf0psn544+xfgc71A7vfR5OM0EnowyR3J3XIbPM ozXpD/eaQHoVKOmQBpKgt4iQ90PUtZtQr43YoeAjgvEu5E3adwnw1M9Mjy7nEn0qZu GaL7IW4Sdbf945XbMLdEJYbfeBTnQfwvScg7ntGw= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Fabien Dessenne , Loic Pallardy , Marc Zyngier , Sasha Levin Subject: [PATCH AUTOSEL 4.19 42/52] irqchip/stm32: Don't clear rising/falling config registers at init Date: Fri, 29 Mar 2019 20:52:49 -0400 Message-Id: <20190330005301.26868-42-sashal@kernel.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190330005301.26868-1-sashal@kernel.org> References: <20190330005301.26868-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Fabien Dessenne [ Upstream commit 0dda09666f50eae9c5b794dd89b1fd8a8d89d714 ] Falling and rising configuration and status registers are not banked. As they are shared with M4 co-processor, they should not be cleared at probe time, else M4 co-processor configuration will be lost. Fixes: f9fc1745501e ("irqchip/stm32: Add host and driver data structures") Signed-off-by: Loic Pallardy Signed-off-by: Fabien Dessenne Signed-off-by: Marc Zyngier Signed-off-by: Sasha Levin --- drivers/irqchip/irq-stm32-exti.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c index 0a2088e12d96..97b27f338c30 100644 --- a/drivers/irqchip/irq-stm32-exti.c +++ b/drivers/irqchip/irq-stm32-exti.c @@ -650,11 +650,6 @@ stm32_exti_chip_data *stm32_exti_chip_init(struct stm32_exti_host_data *h_data, */ writel_relaxed(0, base + stm32_bank->imr_ofst); writel_relaxed(0, base + stm32_bank->emr_ofst); - writel_relaxed(0, base + stm32_bank->rtsr_ofst); - writel_relaxed(0, base + stm32_bank->ftsr_ofst); - writel_relaxed(~0UL, base + stm32_bank->rpr_ofst); - if (stm32_bank->fpr_ofst != UNDEF_REG) - writel_relaxed(~0UL, base + stm32_bank->fpr_ofst); pr_info("%s: bank%d, External IRQs available:%#x\n", node->full_name, bank_idx, irqs_mask); -- 2.19.1