From patchwork Sat May 7 10:01:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 570691 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E4C72C4167E for ; Sat, 7 May 2022 10:02:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1446242AbiEGKFx (ORCPT ); Sat, 7 May 2022 06:05:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56698 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1388612AbiEGKFo (ORCPT ); Sat, 7 May 2022 06:05:44 -0400 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CB60C3AA56; Sat, 7 May 2022 03:01:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1651917715; x=1683453715; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=1MylfDouAUkI19ElTFtDpDZL11z3RMfTO2EX3tvIe7Q=; b=K5RfCjzUGjuAlLmBVwcIU8OfH5ZBHSMwGB4ak5i2IHM0bIp7IOFs2dBl 1FoT6EhtunRHtQIwfP6FUVDTxcFjJjcgEMaV8yVRCQW4ZIYCLXM+1lW3a cfDSJFnwppXDwNAe59tcy+GnzLcoBMrtTYSpht9lHfmCffHFgzzSZ3EAA U3qEFBqWbltxgk/wSLPF1HeGZsdkkSY3JGMf6b61u75ieND2T/uMa6tCP cpZgx+5m0PQ4cV7NewnWtsvMn36MHFXn+y7LkEEM3f7yDhQAie7G12arg wf1TpkaDCI589XL8VjZrPQYYxvlDgVCLxEmGsOlsCv6ZYsSuLHroznQWv g==; X-IronPort-AV: E=McAfee;i="6400,9594,10339"; a="268315653" X-IronPort-AV: E=Sophos;i="5.91,206,1647327600"; d="scan'208";a="268315653" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 May 2022 03:01:54 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,206,1647327600"; d="scan'208";a="600936229" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga001.jf.intel.com with ESMTP; 07 May 2022 03:01:48 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id A0ED027D; Sat, 7 May 2022 13:01:49 +0300 (EEST) From: Andy Shevchenko To: Andy Shevchenko , Wolfram Sang , Marc Kleine-Budde , Damien Le Moal , Mark Brown , chris.packham@alliedtelesis.co.nz, Sergey Shtylyov , "David S. Miller" , Jakub Kicinski , Greg Kroah-Hartman , Jiri Slaby , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, linux-i2c@vger.kernel.org, linux-can@vger.kernel.org, netdev@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org Cc: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Anatolij Gustschin , Wolfgang Grandegger , Eric Dumazet , Paolo Abeni , Pantelis Antoniou Subject: [PATCH v2 4/4] powerpc/52xx: Convert to use fwnode API Date: Sat, 7 May 2022 13:01:47 +0300 Message-Id: <20220507100147.5802-4-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220507100147.5802-1-andriy.shevchenko@linux.intel.com> References: <20220507100147.5802-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org We may convert the GPT driver to use fwnode API for the sake of consistency of the used APIs inside the driver. Signed-off-by: Andy Shevchenko --- v2: no changes arch/powerpc/platforms/52xx/mpc52xx_gpt.c | 47 +++++++++++------------ 1 file changed, 22 insertions(+), 25 deletions(-) diff --git a/arch/powerpc/platforms/52xx/mpc52xx_gpt.c b/arch/powerpc/platforms/52xx/mpc52xx_gpt.c index ae47fdcc8a96..58c3651034bd 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_gpt.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_gpt.c @@ -53,10 +53,9 @@ #include #include #include +#include +#include #include -#include -#include -#include #include #include #include @@ -64,7 +63,7 @@ #include #include #include -#include + #include #include @@ -235,18 +234,17 @@ static const struct irq_domain_ops mpc52xx_gpt_irq_ops = { .xlate = mpc52xx_gpt_irq_xlate, }; -static void -mpc52xx_gpt_irq_setup(struct mpc52xx_gpt_priv *gpt, struct device_node *node) +static void mpc52xx_gpt_irq_setup(struct mpc52xx_gpt_priv *gpt) { int cascade_virq; unsigned long flags; u32 mode; - cascade_virq = irq_of_parse_and_map(node, 0); - if (!cascade_virq) + cascade_virq = platform_get_irq(to_platform_device(gpt->dev), 0); + if (cascade_virq < 0) return; - gpt->irqhost = irq_domain_add_linear(node, 1, &mpc52xx_gpt_irq_ops, gpt); + gpt->irqhost = irq_domain_create_linear(dev_fwnode(gpt->dev), 1, &mpc52xx_gpt_irq_ops, gpt); if (!gpt->irqhost) { dev_err(gpt->dev, "irq_domain_add_linear() failed\n"); return; @@ -670,8 +668,7 @@ static int mpc52xx_gpt_wdt_init(void) return err; } -static int mpc52xx_gpt_wdt_setup(struct mpc52xx_gpt_priv *gpt, - const u32 *period) +static int mpc52xx_gpt_wdt_setup(struct mpc52xx_gpt_priv *gpt, const u32 period) { u64 real_timeout; @@ -679,14 +676,14 @@ static int mpc52xx_gpt_wdt_setup(struct mpc52xx_gpt_priv *gpt, mpc52xx_gpt_wdt = gpt; /* configure the wdt if the device tree contained a timeout */ - if (!period || *period == 0) + if (period == 0) return 0; - real_timeout = (u64) *period * 1000000000ULL; + real_timeout = (u64)period * 1000000000ULL; if (mpc52xx_gpt_do_start(gpt, real_timeout, 0, 1)) dev_warn(gpt->dev, "starting as wdt failed\n"); else - dev_info(gpt->dev, "watchdog set to %us timeout\n", *period); + dev_info(gpt->dev, "watchdog set to %us timeout\n", period); return 0; } @@ -697,8 +694,7 @@ static int mpc52xx_gpt_wdt_init(void) return 0; } -static inline int mpc52xx_gpt_wdt_setup(struct mpc52xx_gpt_priv *gpt, - const u32 *period) +static inline int mpc52xx_gpt_wdt_setup(struct mpc52xx_gpt_priv *gpt, const u32 period) { return 0; } @@ -726,25 +722,26 @@ static int mpc52xx_gpt_probe(struct platform_device *ofdev) dev_set_drvdata(&ofdev->dev, gpt); mpc52xx_gpt_gpio_setup(gpt); - mpc52xx_gpt_irq_setup(gpt, ofdev->dev.of_node); + mpc52xx_gpt_irq_setup(gpt); mutex_lock(&mpc52xx_gpt_list_mutex); list_add(&gpt->list, &mpc52xx_gpt_list); mutex_unlock(&mpc52xx_gpt_list_mutex); /* check if this device could be a watchdog */ - if (of_get_property(ofdev->dev.of_node, "fsl,has-wdt", NULL) || - of_get_property(ofdev->dev.of_node, "has-wdt", NULL)) { - const u32 *on_boot_wdt; + if (device_property_present(gpt->dev, "fsl,has-wdt") || + device_property_present(gpt->dev, "has-wdt")) { + u32 on_boot_wdt = 0; + int ret; gpt->wdt_mode = MPC52xx_GPT_CAN_WDT; - on_boot_wdt = of_get_property(ofdev->dev.of_node, - "fsl,wdt-on-boot", NULL); - if (on_boot_wdt) { + ret = device_property_read_u32(gpt->dev, "fsl,wdt-on-boot", &on_boot_wdt); + if (ret) { + dev_info(gpt->dev, "can function as watchdog\n"); + } else { dev_info(gpt->dev, "used as watchdog\n"); gpt->wdt_mode |= MPC52xx_GPT_IS_WDT; - } else - dev_info(gpt->dev, "can function as watchdog\n"); + } mpc52xx_gpt_wdt_setup(gpt, on_boot_wdt); }