From patchwork Tue Jun 16 06:13:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Stultz X-Patchwork-Id: 206757 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=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 A98C3C433E0 for ; Tue, 16 Jun 2020 06:14:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7FC6F2074D for ; Tue, 16 Jun 2020 06:14:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="HS2MKGAs" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727815AbgFPGOD (ORCPT ); Tue, 16 Jun 2020 02:14:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42176 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727107AbgFPGNq (ORCPT ); Tue, 16 Jun 2020 02:13:46 -0400 Received: from mail-pl1-x642.google.com (mail-pl1-x642.google.com [IPv6:2607:f8b0:4864:20::642]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 76A87C03E96A for ; Mon, 15 Jun 2020 23:13:46 -0700 (PDT) Received: by mail-pl1-x642.google.com with SMTP id y18so7922098plr.4 for ; Mon, 15 Jun 2020 23:13:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=M2uJULnvxDpfHs89lgaTRTB9rey6NHbhAifKB1x72gQ=; b=HS2MKGAsNdjUxJ+yy27jcpiH1bk7koug2OAXwLJHoTgucSozWnIJSObeAki8dM05am DLCS+qX0P1LSqKwIln1ckxouXz0KbXo3o0tpFiRBYmK+NPiqKE6pDzuqc9M+Woh0UQ59 0qIqzR0HzmFta9njqekXv2RYydZQgrYMTxUNtcLireoA0iUhs07M+xTESQi6DDO/vBQo bSM6fZK5iqdLi0jpB6PQWvFyk1ti/AJVyzKrfiIVqCShGFceJ3mF8PFRVhuFFpNV+gJ8 6/V4j3vwecDwCtqKeIWENohJF3zGujG5GiKGDkkY7rGGOJZOxBk/IL493YOcEiEuhVBI PAjg== 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:in-reply-to :references; bh=M2uJULnvxDpfHs89lgaTRTB9rey6NHbhAifKB1x72gQ=; b=dTd7CqJqG113+B4dfr3ZY9XktT1UBGB2mw++YU6iPpIjzL8IpwSEpKJpyLpFXxhuF9 L9Iv+MbXLywcwhacT1N1M24WyXCgFNCBQGnmkd5K7Qvc9Yr6Zl1+GYYi9Izu9RljSRbr gYeghFV8BNYLJBz5u7oTLjLQtYaZ8+V3Q5OK5A6HDO843l7uN4drUWNglKsBpovTrXJW lgBLpqsU1gHm+gV0Nzj0yDsHzBksd8qyk0bxa5q35EV/Ml+1FtonZgf9hKJlXoWJ4mcI XY9ebOI9aoaRpcSW0F4VwQFZZJ+tSiROvQ62x7iwK+p3fWH9ieKs8lcW5EqQOkE3ztH8 Sdzw== X-Gm-Message-State: AOAM531q1Fc+OsRPMnpxSs0Cug7CgJoIi8Y9yAhKZ6piw5Bru2mmM8Kj 20kBkVfYJMnR6tSP0ltjCCZEAg== X-Google-Smtp-Source: ABdhPJw2m1e+LDbBPxO7NdX9TwT/7AlJxXRrPGMYRWdq75cFQWSCTf4uPSRnj0rAwyp+oCkFUZF2jQ== X-Received: by 2002:a17:90b:238d:: with SMTP id mr13mr1308289pjb.19.1592288025969; Mon, 15 Jun 2020 23:13:45 -0700 (PDT) Received: from localhost.localdomain ([2601:1c2:680:1319:692:26ff:feda:3a81]) by smtp.gmail.com with ESMTPSA id i26sm15642032pfo.0.2020.06.15.23.13.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Jun 2020 23:13:45 -0700 (PDT) From: John Stultz To: lkml Cc: John Stultz , Andy Gross , Bjorn Andersson , Joerg Roedel , Thomas Gleixner , Jason Cooper , Marc Zyngier , Linus Walleij , Lina Iyer , Saravana Kannan , Todd Kjos , Greg Kroah-Hartman , linux-arm-msm@vger.kernel.org, iommu@lists.linux-foundation.org, linux-gpio@vger.kernel.org Subject: [RFC][PATCH 3/5] irqchip: Allow QCOM_PDC to be loadable as a perment module Date: Tue, 16 Jun 2020 06:13:36 +0000 Message-Id: <20200616061338.109499-4-john.stultz@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200616061338.109499-1-john.stultz@linaro.org> References: <20200616061338.109499-1-john.stultz@linaro.org> Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Allows qcom-pdc driver to be loaded as a permenent module Also, due to the fact that IRQCHIP_DECLARE becomes a no-op when building as a module, we have to add the platform driver hooks explicitly. Thanks to Saravana for his help on pointing out the IRQCHIP_DECLARE issue and guidance on a solution. Cc: Andy Gross Cc: Bjorn Andersson Cc: Joerg Roedel Cc: Thomas Gleixner Cc: Jason Cooper Cc: Marc Zyngier Cc: Linus Walleij Cc: Lina Iyer Cc: Saravana Kannan Cc: Todd Kjos Cc: Greg Kroah-Hartman Cc: linux-arm-msm@vger.kernel.org Cc: iommu@lists.linux-foundation.org Cc: linux-gpio@vger.kernel.org Signed-off-by: John Stultz --- drivers/irqchip/Kconfig | 2 +- drivers/irqchip/qcom-pdc.c | 30 ++++++++++++++++++++++++++++++ 2 files changed, 31 insertions(+), 1 deletion(-) diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index 29fead208cad..12765bed08f9 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -425,7 +425,7 @@ config GOLDFISH_PIC for Goldfish based virtual platforms. config QCOM_PDC - bool "QCOM PDC" + tristate "QCOM PDC" depends on ARCH_QCOM select IRQ_DOMAIN_HIERARCHY help diff --git a/drivers/irqchip/qcom-pdc.c b/drivers/irqchip/qcom-pdc.c index 6ae9e1f0819d..98d74160afcd 100644 --- a/drivers/irqchip/qcom-pdc.c +++ b/drivers/irqchip/qcom-pdc.c @@ -11,7 +11,9 @@ #include #include #include +#include #include +#include #include #include #include @@ -430,4 +432,32 @@ static int qcom_pdc_init(struct device_node *node, struct device_node *parent) return ret; } +#ifdef MODULE +static int qcom_pdc_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + struct device_node *parent = of_irq_find_parent(np); + + return qcom_pdc_init(np, parent); +} + +static const struct of_device_id qcom_pdc_match_table[] = { + { .compatible = "qcom,pdc" }, + {} +}; +MODULE_DEVICE_TABLE(of, qcom_pdc_match_table); + +static struct platform_driver qcom_pdc_driver = { + .probe = qcom_pdc_probe, + .driver = { + .name = "qcom-pdc", + .of_match_table = qcom_pdc_match_table, + }, +}; +module_platform_driver(qcom_pdc_driver); +#else IRQCHIP_DECLARE(qcom_pdc, "qcom,pdc", qcom_pdc_init); +#endif + +MODULE_DESCRIPTION("Qualcomm Technologies, Inc. Power Domain Controller"); +MODULE_LICENSE("GPL v2");