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=-13.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,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 85A94C4363A for ; Mon, 5 Oct 2020 15:33:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 46732206DD for ; Mon, 5 Oct 2020 15:33:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601912028; bh=0Px8NQer0ngrVdtrclYYH29ovTfUsazEC0loOtARlrI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=H0EOOKwheF3kOCzXzQf3uYXlQJVD6o30669LUWIjK/swTUmYoohj7Tb1HrkStVsBm 4DbkhB+jRa5Smti7Q0nVz9gR69E6GiJa4HuhtLBYh44h7Pb4J3pJ7wBvUo3FPR75Tp cJKmj3+TZqO3nnE0hNPUg/lywiENgscqUS3k031g= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728189AbgJEPdr (ORCPT ); Mon, 5 Oct 2020 11:33:47 -0400 Received: from mail.kernel.org ([198.145.29.99]:33402 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728138AbgJEPd0 (ORCPT ); Mon, 5 Oct 2020 11:33:26 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A9A07207BC; Mon, 5 Oct 2020 15:33:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601912006; bh=0Px8NQer0ngrVdtrclYYH29ovTfUsazEC0loOtARlrI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YtBzhfz9Y+zJSq4MWVKeXYH6FP4g8h645Tll60mFlMFS3zcki4pp8fdalA+44Is34 pOKHrpuFo3ZquEyLW8G25XFQIX1VeIT+eEgVQtAPem7CNFgbQw3MtMQBhOoDGfBa5H DIipmLY8GYH6PHAuB/uMcM00/RWvQsHEzOFEHvLo= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jeremy Kerr , Joel Stanley , Andrew Jeffery , Bartosz Golaszewski , Sasha Levin Subject: [PATCH 5.8 64/85] gpio/aspeed-sgpio: dont enable all interrupts by default Date: Mon, 5 Oct 2020 17:27:00 +0200 Message-Id: <20201005142117.807831256@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201005142114.732094228@linuxfoundation.org> References: <20201005142114.732094228@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jeremy Kerr [ Upstream commit bf0d394e885015941ed2d5724c0a6ed8d42dd95e ] Currently, the IRQ setup for the SGPIO driver enables all interrupts in dual-edge trigger mode. Since the default handler is handle_bad_irq, any state change on input GPIOs will trigger bad IRQ warnings. This change applies sensible IRQ defaults: single-edge trigger, and all IRQs disabled. Signed-off-by: Jeremy Kerr Fixes: 7db47faae79b ("gpio: aspeed: Add SGPIO driver") Reviewed-by: Joel Stanley Acked-by: Andrew Jeffery Signed-off-by: Bartosz Golaszewski Signed-off-by: Sasha Levin --- drivers/gpio/gpio-aspeed-sgpio.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/gpio/gpio-aspeed-sgpio.c b/drivers/gpio/gpio-aspeed-sgpio.c index 5d678dbf1a621..a0eb00c024f62 100644 --- a/drivers/gpio/gpio-aspeed-sgpio.c +++ b/drivers/gpio/gpio-aspeed-sgpio.c @@ -452,17 +452,15 @@ static int aspeed_sgpio_setup_irqs(struct aspeed_sgpio *gpio, irq->parents = &gpio->irq; irq->num_parents = 1; - /* set IRQ settings and Enable Interrupt */ + /* Apply default IRQ settings */ for (i = 0; i < ARRAY_SIZE(aspeed_sgpio_banks); i++) { bank = &aspeed_sgpio_banks[i]; /* set falling or level-low irq */ iowrite32(0x00000000, bank_reg(gpio, bank, reg_irq_type0)); /* trigger type is edge */ iowrite32(0x00000000, bank_reg(gpio, bank, reg_irq_type1)); - /* dual edge trigger mode. */ - iowrite32(0xffffffff, bank_reg(gpio, bank, reg_irq_type2)); - /* enable irq */ - iowrite32(0xffffffff, bank_reg(gpio, bank, reg_irq_enable)); + /* single edge trigger */ + iowrite32(0x00000000, bank_reg(gpio, bank, reg_irq_type2)); } return 0; -- 2.25.1