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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 5D504C432C0 for ; Tue, 3 Dec 2019 22:49:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2494F20881 for ; Tue, 3 Dec 2019 22:49:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575413398; bh=niKuEWpHYMiGBDyVgEHosl+UrqPkEyiUFP+M5ijO2mg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=PiMczNnezulT8ChkH2NQ7ZyWYaUmof4Rhncjf28V3J3hY6Orpf9YkOZ4t/eOB0c+v Zi12+7JnjvWCJ1QVa00wG/s36ocQPqW7ySVsofe+FS151IyFrSKMwfLlgLC4TcszMv 7FCX+HH6yrTHgkMPFtgkvZ1atRdI05hMx291zads= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729680AbfLCWt4 (ORCPT ); Tue, 3 Dec 2019 17:49:56 -0500 Received: from mail.kernel.org ([198.145.29.99]:41050 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729665AbfLCWtt (ORCPT ); Tue, 3 Dec 2019 17:49:49 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 8903C2080F; Tue, 3 Dec 2019 22:49:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575413389; bh=niKuEWpHYMiGBDyVgEHosl+UrqPkEyiUFP+M5ijO2mg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=enNI0OstmkRUUFJsPYsieEj6Xhywj0PRBKjmyL9CUyz5FG4WxBywL2RRQAiSVs/PW QmuURvjZ308Ctr0ykyMuMT40SXD1AumpO11aUpicEmEcHZpVvkn+mj1khnOSPOLOBi Jg+jtCb0lf1Dg+caC0GgW8L3uySNrz6QnRzfKAb0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Marek Vasut , Bartosz Golaszewski , Linus Walleij , Sasha Levin Subject: [PATCH 4.19 109/321] gpio: pca953x: Fix AI overflow on PCAL6524 Date: Tue, 3 Dec 2019 23:32:55 +0100 Message-Id: <20191203223432.820984240@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191203223427.103571230@linuxfoundation.org> References: <20191203223427.103571230@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Marek Vasut [ Upstream commit 92f45ebe68181c2d7f76633ffae55bc9447d62cd ] The PCAL_PINCTRL_MASK is too large. The extended register block on PCAL6524, which is the largest chip with this block, has the block limited to address range 0x40..0x7f. This is because the bit 7 in the command register is used for the Address Increment functionality. Trim the mask to 0x60 to match the datasheet and to prevent accidental overwrite of the AI bit. Signed-off-by: Marek Vasut Reviewed-by: Bartosz Golaszewski Signed-off-by: Linus Walleij Signed-off-by: Sasha Levin --- drivers/gpio/gpio-pca953x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index e0657fc72d31f..0232c25a15864 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -58,7 +58,7 @@ #define PCA_GPIO_MASK 0x00FF #define PCAL_GPIO_MASK 0x1f -#define PCAL_PINCTRL_MASK 0xe0 +#define PCAL_PINCTRL_MASK 0x60 #define PCA_INT 0x0100 #define PCA_PCAL 0x0200 -- 2.20.1