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=-2.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 A21CEC43387 for ; Sat, 29 Dec 2018 11:48:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 66B92218FD for ; Sat, 29 Dec 2018 11:48:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=onstation.org header.i=@onstation.org header.b="J1z2XPlh" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727572AbeL2LsE (ORCPT ); Sat, 29 Dec 2018 06:48:04 -0500 Received: from onstation.org ([52.200.56.107]:46166 "EHLO onstation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727526AbeL2LsE (ORCPT ); Sat, 29 Dec 2018 06:48:04 -0500 Received: from localhost.localdomain (c-98-239-145-235.hsd1.wv.comcast.net [98.239.145.235]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: masneyb) by onstation.org (Postfix) with ESMTPSA id 1D34414A; Sat, 29 Dec 2018 11:48:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=onstation.org; s=default; t=1546084083; bh=RFqNgt4kh2hQcJjjzOy0dOpxHmpuEb/PNuxq066qzuA=; h=From:To:Cc:Subject:Date:From; b=J1z2XPlhYdTSevjpKEm7a+yeT9EsLwbdJzTsy1cwa/tASkEp7VtUL63k9SFhuvtjq x9wwkSK1E4EwlZDYo1GQCAsFFi1OJj2sgR4a3I6KPAyOnNa+boCKew4UxSMjsDm8Zn q/+ARai/u904KA1RGYF0cOL0h4vrjvSj8QTuuMOY= From: Brian Masney To: linus.walleij@linaro.org, sboyd@kernel.org, bjorn.andersson@linaro.org, andy.gross@linaro.org Cc: marc.zyngier@arm.com, shawnguo@kernel.org, dianders@chromium.org, linux-gpio@vger.kernel.org, nicolas.dechesne@linaro.org, niklas.cassel@linaro.org, david.brown@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com, thierry.reding@gmail.com, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH 0/3] qcom: spmi: add support for hierarchical IRQ chip Date: Sat, 29 Dec 2018 06:47:52 -0500 Message-Id: <20181229114755.8711-1-masneyb@onstation.org> X-Mailer: git-send-email 2.17.2 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch series adds hierarchical IRQ chip support to spmi-gpio so that device tree consumers can request an IRQ directly from the GPIO block rather than having to request an IRQ from the underlying PMIC. The first patch in this series converts pmic-arb to use the version 2 IRQ interface and patches 2 and 3 add support for the hierarchical IRQ chip to spmi-gpio. For more background information, see the email thread with Linus Walleij's excellent description of the problem at https://www.spinics.net/lists/linux-gpio/msg34655.html. The patches need to be applied in the order that I have them in order to allow for a proper bisection, however part of the series can be applied without any breakage. Maybe the spmi-arb change can go in for v4.21 and the spmi-gpio changes can go in for v4.22? This work was tested on a LG Nexus 5 (hammerhead) phone. My status page at https://masneyb.github.io/nexus-5-upstream/ describes what is working so far with an upstream kernel. Brian Masney (3): spmi: pmic-arb: convert to v2 irq interfaces to support hierarchical IRQ chips qcom: spmi-gpio: add support for hierarchical IRQ chip ARM: dts: qcom: msm8974: add interrupt properties arch/arm/boot/dts/qcom-pm8941.dtsi | 3 + drivers/pinctrl/qcom/pinctrl-spmi-gpio.c | 119 ++++++++++++++++++++++- drivers/spmi/spmi-pmic-arb.c | 91 ++++++++++++----- 3 files changed, 182 insertions(+), 31 deletions(-) -- 2.17.2