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=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 55698C433EF for ; Thu, 23 Sep 2021 21:38:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3CFF361107 for ; Thu, 23 Sep 2021 21:38:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243365AbhIWVjf (ORCPT ); Thu, 23 Sep 2021 17:39:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34878 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243322AbhIWVjf (ORCPT ); Thu, 23 Sep 2021 17:39:35 -0400 Received: from mail-lf1-x12d.google.com (mail-lf1-x12d.google.com [IPv6:2a00:1450:4864:20::12d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CC93FC061757 for ; Thu, 23 Sep 2021 14:38:02 -0700 (PDT) Received: by mail-lf1-x12d.google.com with SMTP id m3so31923566lfu.2 for ; Thu, 23 Sep 2021 14:38:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=rjjBaXfqNNUcdJzsG6m5aGab91aTceqgqatTorcUUUI=; b=ZCwMPGAXGKLBFRYuYrwbs13zHz/AAN2TIIV242eDN6gPpeRYT94w+/jKCMTRc9DvDh Y+0ZGTUgV55tWWY9C86yQ/8vQlR2UmHBvMtGtaFTwuA1rzIdPwdTPRHGb/JRDv9I++Al OaIaH6dvUZfN/V2Mrl+H84/1yeY7ra2KZWYpOot5YvYopMjaEexKWuEiThQ2VKpzDtA2 ac3abxcii/mz/96OIN3XsQvf7GTr40Iu/KAptR+LLLyHrUk1uP+c1kl0BUrF1C2iU+4T K5vRZj6KcX55ueG9uEbdING9AWiZX93f3/CGpU2Ktnv56imeGBn/NfD9Og+dCj7e3mBt njAA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=rjjBaXfqNNUcdJzsG6m5aGab91aTceqgqatTorcUUUI=; b=GhpeOPiC+cBQNX8KxfFP+i1yDa0p20bMjtupxCchhXFg6hZIIx8lXVrn03UVUPS5mr qZAduN97mjdrO1jGq2T2d2k9gUd203KrpxThe+OmK6lYEin/M7fTmDH1PQaTaGbF981u lplfh/hIUTJ/4Y2kPMjmqlx25T4cGqfUkdDoPMXzNFDp532HVnfNl/p+JLXqavwGfx8q tzk2//doTpiJqnuUkfKoKf6vA288hT2Dxfrtqe7OvdP+R3KWkQZJA/1j3CRhF9Py1sTF p/PKAHju76YNrwY91yznadP8z79Sk9j09qTrXHNHwDXC6Ir/YwYK6YuFKmJyuGxf+SJD wbcw== X-Gm-Message-State: AOAM532rmKgXjuZwBMoWFBZEcSLPK3CQJJDatjJlVU6LzS5oA+J4FyYR xbOlUSrBYsA6GNrF1Pu6hxzdbEKsVDyMVBWgRS7FBw== X-Google-Smtp-Source: ABdhPJxbuRwPzu0L94rKNOmRj1C3kdI9BQ3JDiEK7xvk4idHyj1uZZzgyv03ChUku7sDjSQ83R91iSJFoFMUdHdnHJA= X-Received: by 2002:ac2:4d03:: with SMTP id r3mr6525070lfi.339.1632433081198; Thu, 23 Sep 2021 14:38:01 -0700 (PDT) MIME-Version: 1.0 References: <20210921193028.13099-1-prabhakar.mahadev-lad.rj@bp.renesas.com> <20210921193028.13099-4-prabhakar.mahadev-lad.rj@bp.renesas.com> In-Reply-To: <20210921193028.13099-4-prabhakar.mahadev-lad.rj@bp.renesas.com> From: Linus Walleij Date: Thu, 23 Sep 2021 23:37:50 +0200 Message-ID: Subject: Re: [RFC PATCH v2 3/4] pinctrl: renesas: pinctrl-rzg2l: Add IRQ domain to handle GPIO interrupt To: Lad Prabhakar Cc: Marc Zyngier , Thomas Gleixner , Geert Uytterhoeven , Rob Herring , Magnus Damm , "open list:GPIO SUBSYSTEM" , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , linux-kernel , Linux-Renesas , Prabhakar , Biju Das Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org On Tue, Sep 21, 2021 at 9:30 PM Lad Prabhakar wrote: > Add IRQ domian to RZ/G2L pinctrl driver to handle GPIO interrupt. > > GPIO0-GPIO122 pins can be used as IRQ lines but only 32 pins can be > used as IRQ lines at given time. Selection of pins as IRQ lines > is handled by IA55 (which is the IRQC block) which sits in between the > GPIO and GIC. > > Signed-off-by: Lad Prabhakar Why can't you just use the hierarchical IRQ domain handling inside gpiolib? See for example drivers/gpio/gpio-ixp4xx.c for an example of how this is used. Yours, Linus Walleij