From patchwork Thu Aug 8 07:11:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Herve Codina X-Patchwork-Id: 13757039 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id ADA24C52D73 for ; Thu, 8 Aug 2024 07:25:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=WRWRYsao//QuuKGXh5Qe/5pgiQSleHHmlQQU/Eyhza0=; b=WcmX14FphtMSPoE52U+MCVzlUy 9pkKKU63V+mI9osE0+Tui9Tui3J2GYdIfa4OzlF9Z3j7dreEMU4bmITAkS0N55Dsow/MkaaC/Bky7 BHfJ8QpHTk+x/sAxko9/wVx4y+i8et2mXF2XVMIqEtWchuc0HasNUxJ5oARY+bcmbjca5Xt7m+7wn RqwrpRAP3MWrTLVcBTzglEq0DVEceIjNQ8TF7IgqI9Egskp3vnphyw6fRkd2TmZuXG2d5+Ap0/JGe 6J8IrZoAZVjjjU9fbukCGwntq2GoW3PKF+JCE5ImkP0igKsRrho1oDguI/u8B68a/59Vh+ueODjlt gIwxlnCw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sbxWv-00000007OxJ-1FWq; Thu, 08 Aug 2024 07:25:49 +0000 Received: from relay6-d.mail.gandi.net ([2001:4b98:dc4:8::226]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sbxJY-00000007KB3-0oAR for linux-arm-kernel@lists.infradead.org; Thu, 08 Aug 2024 07:12:02 +0000 Received: by mail.gandi.net (Postfix) with ESMTPA id 09703C0004; Thu, 8 Aug 2024 07:11:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1723101118; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=WRWRYsao//QuuKGXh5Qe/5pgiQSleHHmlQQU/Eyhza0=; b=YKGEBMq8oR9pt28x8GLB1+n7+4maaPD4Cnnq4K0yuYiuw6W1bbQOlPLPVEJRCmwC5u9pjx ff1Iiq6J+s1gKcHOdfvAMzIP705AOxyXyb53JJ60tVKLZB+OFyBreTBnJGgq9m/K/Z3dTs 6Vn7aoevKH0sysLJbqYMAAPUV49+vv+F/cODBlWYmBkIIeRrmjPDHfoFwFQMdu2ETS6WMY QBYL2WdDSGj87MyJtdgCPTsDQSNwJCcuxny9JogncMA/r854zXYBcZOkY0Ck9CBOH8feYj 3YGl53hXZL0Yhgl9fcCmENvthBqYx2zY/nRn58yAg4MY1nbATDBFXrK21uY2ew== From: Herve Codina To: Herve Codina , Christophe Leroy , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Qiang Zhao , Li Yang , Mark Brown Cc: linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Thomas Petazzoni Subject: [PATCH v2 26/36] soc: fsl: cpm1: qmc: Introduce qmc_init_resource() and its CPM1 version Date: Thu, 8 Aug 2024 09:11:19 +0200 Message-ID: <20240808071132.149251-27-herve.codina@bootlin.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240808071132.149251-1-herve.codina@bootlin.com> References: <20240808071132.149251-1-herve.codina@bootlin.com> MIME-Version: 1.0 X-GND-Sasl: herve.codina@bootlin.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240808_001200_628359_844650B3 X-CRM114-Status: GOOD ( 13.98 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Current code handles the CPM1 version of QMC. Resources initialisations (i.e. retrieving base addresses and offsets of different parts) will be slightly different in the QUICC Engine (QE) version. Indeed, in QE version, some resources need to be allocated and are no more "staticaly" defined. In order to prepare the support for QE version, introduce qmc_init_resource() to initialize those resources and isolate the CPM1 specific operations in a specific function. Signed-off-by: Herve Codina Reviewed-by: Christophe Leroy --- drivers/soc/fsl/qe/qmc.c | 47 ++++++++++++++++++++++++++-------------- 1 file changed, 31 insertions(+), 16 deletions(-) diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c index 8dd0f8fc7b08..eacc7dd2be53 100644 --- a/drivers/soc/fsl/qe/qmc.c +++ b/drivers/soc/fsl/qe/qmc.c @@ -1593,11 +1593,38 @@ static irqreturn_t qmc_irq_handler(int irq, void *priv) return IRQ_HANDLED; } +static int qmc_cpm1_init_resources(struct qmc *qmc, struct platform_device *pdev) +{ + struct resource *res; + + qmc->scc_regs = devm_platform_ioremap_resource_byname(pdev, "scc_regs"); + if (IS_ERR(qmc->scc_regs)) + return PTR_ERR(qmc->scc_regs); + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "scc_pram"); + if (!res) + return -EINVAL; + qmc->scc_pram_offset = res->start - get_immrbase(); + qmc->scc_pram = devm_ioremap_resource(qmc->dev, res); + if (IS_ERR(qmc->scc_pram)) + return PTR_ERR(qmc->scc_pram); + + qmc->dpram = devm_platform_ioremap_resource_byname(pdev, "dpram"); + if (IS_ERR(qmc->dpram)) + return PTR_ERR(qmc->dpram); + + return 0; +} + +static int qmc_init_resources(struct qmc *qmc, struct platform_device *pdev) +{ + return qmc_cpm1_init_resources(qmc, pdev); +} + static int qmc_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; unsigned int nb_chans; - struct resource *res; struct qmc *qmc; int irq; int ret; @@ -1620,21 +1647,9 @@ static int qmc_probe(struct platform_device *pdev) "Failed to get TSA serial\n"); } - qmc->scc_regs = devm_platform_ioremap_resource_byname(pdev, "scc_regs"); - if (IS_ERR(qmc->scc_regs)) - return PTR_ERR(qmc->scc_regs); - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "scc_pram"); - if (!res) - return -EINVAL; - qmc->scc_pram_offset = res->start - get_immrbase(); - qmc->scc_pram = devm_ioremap_resource(qmc->dev, res); - if (IS_ERR(qmc->scc_pram)) - return PTR_ERR(qmc->scc_pram); - - qmc->dpram = devm_platform_ioremap_resource_byname(pdev, "dpram"); - if (IS_ERR(qmc->dpram)) - return PTR_ERR(qmc->dpram); + ret = qmc_init_resources(qmc, pdev); + if (ret) + return ret; /* Parse channels informationss */ ret = qmc_of_parse_chans(qmc, np);