From patchwork Mon Oct 8 16:32:12 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Boyd X-Patchwork-Id: 980663 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=chromium.org header.i=@chromium.org header.b="KkmbcIN4"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 42TQrX5CJPz9sBh for ; Tue, 9 Oct 2018 03:32:44 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726692AbeJHXou (ORCPT ); Mon, 8 Oct 2018 19:44:50 -0400 Received: from mail-pf1-f195.google.com ([209.85.210.195]:34315 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726415AbeJHXou (ORCPT ); Mon, 8 Oct 2018 19:44:50 -0400 Received: by mail-pf1-f195.google.com with SMTP id k19-v6so8629778pfi.1 for ; Mon, 08 Oct 2018 09:32:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=uzbIQGVke+G0uyE3ie/RdMq0ogkmeNz0swT4Wn03utU=; b=KkmbcIN445KUD7q79TVRBvsrOiHukuMegeIPWpV/IlUondtCTBNrVgNjI2JnvHgxQJ ZBdkw5XeuD9LFoFinqCA5IVNRKBh8R5vlArhlIt59fU7nxbucT88vnH8n0AVp0OjhXPl ZoEjCrCch1h/+gLsUV+Vr6eITIVe8FTOz5iPI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=uzbIQGVke+G0uyE3ie/RdMq0ogkmeNz0swT4Wn03utU=; b=Jz015bQwrNRn7QPSYXT7nIPkqnR2c8S9kHN+gbsaz5LY+GXPch462i4c7T7DHGtu2J Du3kBqZaw8OHN3aGsbKcq8ycbxgQziP8Y+H9YZV7SB/1MWqXbJOAJHABhSK7JBpae/Cf XSWMPG5r0rx/pehzl6UkkXFly6z/YvULvbFikGZET6cN+bvazb6+zPvtKNcrdjJkhCbp wr3u3mf/KIqXRRmvb/WM/yjsEeTuhpow8yRjPS5ksf99R5vkqasMzFt273KJe7DXaV74 OQ6C0QTmj/jcSLnwumyTxsQYolSBNBsgIH4q2e37AGpOGmQcSJNY018im2gOSUh4nT0s 9MDw== X-Gm-Message-State: ABuFfojmxogqbN6TjrwBVrSmPgb8/H/pp7w2ZxvXdZEiZr0wizIn0pLO 7r2I53ZUXG/h+16fSsDPYqZSvw== X-Google-Smtp-Source: ACcGV60HQTKs3hS8h5367cHTXM4EL165I3NgTijyyN+1xr++3PRoPwpCFBIa3KRVm6VbN1lf/V1t4w== X-Received: by 2002:a63:c044:: with SMTP id z4-v6mr21649691pgi.274.1539016337655; Mon, 08 Oct 2018 09:32:17 -0700 (PDT) Received: from smtp.gmail.com ([2620:15c:202:1:fed3:9637:a13a:6c15]) by smtp.gmail.com with ESMTPSA id 3-v6sm29832077pga.12.2018.10.08.09.32.16 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 08 Oct 2018 09:32:17 -0700 (PDT) From: Stephen Boyd To: Linus Walleij Cc: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, Evan Green , Thierry Reding , Grygorii Strashko Subject: [PATCH 0/4] gpio chip cascade fixes Date: Mon, 8 Oct 2018 09:32:12 -0700 Message-Id: <20181008163216.97436-1-swboyd@chromium.org> X-Mailer: git-send-email 2.19.0.605.g01d371f741-goog MIME-Version: 1.0 Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Originally this was a single patch but then I noticed some other things that didn't seem quite right so I added on a few more patches after that. The first patch is the important one because it fixes a bug where a stack pointer is assigned to the gpio_irq_chip structure and used later on when that stack is gone. Cc: Evan Green Cc: Thierry Reding Cc: Grygorii Strashko Stephen Boyd (4): gpio: Assign gpio_irq_chip::parents to non-stack pointer gpio: Drop parent irq assignment during cascade setup gpio: Remove unused 'irqchip' argument to gpiochip_set_cascaded_irqchip() gpio: Clarify kerneldoc on gpiochip_set_chained_irqchip() drivers/gpio/gpiolib.c | 24 +++++------------------- include/linux/gpio/driver.h | 5 +++++ 2 files changed, 10 insertions(+), 19 deletions(-)