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=-14.0 required=3.0 tests=BAYES_00,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 6CB70C4320E for ; Thu, 26 Aug 2021 16:51:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4DAE360F6F for ; Thu, 26 Aug 2021 16:51:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243131AbhHZQwE (ORCPT ); Thu, 26 Aug 2021 12:52:04 -0400 Received: from mail-oo1-f41.google.com ([209.85.161.41]:33709 "EHLO mail-oo1-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232694AbhHZQwD (ORCPT ); Thu, 26 Aug 2021 12:52:03 -0400 Received: by mail-oo1-f41.google.com with SMTP id v20-20020a4a2554000000b0028f8cc17378so1161613ooe.0; Thu, 26 Aug 2021 09:51:16 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=v0RS9BtmuQKC66rh7NIJggtjqQi+Y2U2nIIX3anWZFw=; b=QDzxqd61yhfkQ0nFS/4uyTVVcSBmUB145qnquLR168rsnyblNf0oxPeyNxsvB3OaxG MrSDuQ3q4V9ThFgLz2kdvz4QbueG/JEbo+6mkxuAeCHlqZwqji5WhKzraC5ixmv6P6I+ 6ProOdW/jAk/+wzIT7IWvym3GuN2i1gqgIGtF0/kwe99Q/kPitPO5D4wzSZdl8VLuvSY RJ7Oi/pGKx3/u+zr1MpUQJqO1vd/CGBUlZgvxCVg4yr2yqkVbIkQPQNTl422QwMKPPrb BExNooHI88KBlD0m74oVdKAyHfy3mpPHGkRcpZfQ8Gqy7KispKNterN+1sjy+qHRn/eT ZBtw== X-Gm-Message-State: AOAM532h1Hl5LYq7OL0WBnjY5jQbrACcZgms8LaVA1OIFlshbEaEzia/ 6QqTpbwawTYD+j/5S5pZVZZnOMncrE3c2kF6vss= X-Google-Smtp-Source: ABdhPJwDK1TQo42dcIDi/B0EM/wdubvHTgOceWwZz7PiZIYGR2iSc53SREsnzAN5Ogu7OcPc+cD/wg7hIKLa3OIOwj4= X-Received: by 2002:a4a:ca83:: with SMTP id x3mr4032922ooq.2.1629996676042; Thu, 26 Aug 2021 09:51:16 -0700 (PDT) MIME-Version: 1.0 References: <20210826150317.29435-1-andriy.shevchenko@linux.intel.com> In-Reply-To: <20210826150317.29435-1-andriy.shevchenko@linux.intel.com> From: "Rafael J. Wysocki" Date: Thu, 26 Aug 2021 18:51:05 +0200 Message-ID: Subject: Re: [resend, PATCH v2 1/1] x86/platform: Increase maximum GPIO number for X86_64 To: Andy Shevchenko Cc: Linux Kernel Mailing List , ACPI Devel Maling List , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "the arch/x86 maintainers" , "H. Peter Anvin" , "Rafael J. Wysocki" , Linus Walleij Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Aug 26, 2021 at 5:03 PM Andy Shevchenko wrote: > > By default the 512 GPIOs is the maximum on any x86 platform. > With, for example, Intel Tiger Lake-H the SoC based controller > occupies up to 480 pins. This leaves only 32 available for > GPIO expanders or other drivers, like PMIC. Hence, bump the > maximum GPIO number to 1024 for X86_64 and leave 512 for X86_32. > > Signed-off-by: Andy Shevchenko > Reviewed-by: Linus Walleij Reviewed-by: Rafael J. Wysocki > --- > v2 resend: actually added Rafael and linux-acpi@ to Cc list > v2: dropped confusing comment and help, simplified defaults (Rafael) > added Rb tag (Linus) > arch/x86/Kconfig | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index 858ce2736bd6..25960fe242bd 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -338,6 +338,11 @@ config NEED_PER_CPU_PAGE_FIRST_CHUNK > config ARCH_HIBERNATION_POSSIBLE > def_bool y > > +config ARCH_NR_GPIO > + int > + default 1024 if X86_64 > + default 512 > + > config ARCH_SUSPEND_POSSIBLE > def_bool y > > -- > 2.32.0 >