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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,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 CA8A7C43381 for ; Thu, 7 Mar 2019 18:41:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A663920851 for ; Thu, 7 Mar 2019 18:41:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726520AbfCGSlE (ORCPT ); Thu, 7 Mar 2019 13:41:04 -0500 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:32637 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726268AbfCGSlB (ORCPT ); Thu, 7 Mar 2019 13:41:01 -0500 Received: from pps.filterd (m0046668.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x27IV7Gj025996; Thu, 7 Mar 2019 19:40:51 +0100 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2r2ng26gum-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Thu, 07 Mar 2019 19:40:51 +0100 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id A43A831; Thu, 7 Mar 2019 18:40:50 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas24.st.com [10.75.90.94]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 8C0365832; Thu, 7 Mar 2019 18:40:50 +0000 (GMT) Received: from SAFEX1HUBCAS23.st.com (10.75.90.47) by Safex1hubcas24.st.com (10.75.90.94) with Microsoft SMTP Server (TLS) id 14.3.361.1; Thu, 7 Mar 2019 19:40:50 +0100 Received: from localhost (10.129.4.33) by webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.361.1; Thu, 7 Mar 2019 19:40:49 +0100 From: Fabien Dessenne To: Thomas Gleixner , Jason Cooper , Marc Zyngier , Maxime Coquelin , Alexandre Torgue , , , CC: Fabien Dessenne , Benjamin Gaignard Subject: [PATCH v3 2/2] irqchip: stm32: don't set rising configuration registers at init Date: Thu, 7 Mar 2019 19:40:36 +0100 Message-ID: <1551984036-23027-3-git-send-email-fabien.dessenne@st.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1551984036-23027-1-git-send-email-fabien.dessenne@st.com> References: <1551984036-23027-1-git-send-email-fabien.dessenne@st.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.129.4.33] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-03-07_10:,, signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The rising configuration status register (rtsr) is not banked. As it is shared with the co-processor, it should not be written at probe time, else the co-processor configuration will be lost. Fixes: f9fc1745501e ("irqchip/stm32: Add host and driver data structures") Signed-off-by: Fabien Dessenne --- 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 dab37fb..6b19bff 100644 --- a/drivers/irqchip/irq-stm32-exti.c +++ b/drivers/irqchip/irq-stm32-exti.c @@ -716,7 +716,6 @@ stm32_exti_chip_data *stm32_exti_chip_init(struct stm32_exti_host_data *h_data, const struct stm32_exti_bank *stm32_bank; struct stm32_exti_chip_data *chip_data; void __iomem *base = h_data->base; - u32 irqs_mask; stm32_bank = h_data->drv_data->exti_banks[bank_idx]; chip_data = &h_data->chips_data[bank_idx]; @@ -725,10 +724,6 @@ stm32_exti_chip_data *stm32_exti_chip_init(struct stm32_exti_host_data *h_data, raw_spin_lock_init(&chip_data->rlock); - /* Determine number of irqs supported */ - writel_relaxed(~0UL, base + stm32_bank->rtsr_ofst); - irqs_mask = readl_relaxed(base + stm32_bank->rtsr_ofst); - /* * This IP has no reset, so after hot reboot we should * clear registers to avoid residue -- 2.7.4