From patchwork Fri May 26 06:25:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: William Qiu X-Patchwork-Id: 686622 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 D9FD2C7EE39 for ; Fri, 26 May 2023 06:25:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242149AbjEZGZo convert rfc822-to-8bit (ORCPT ); Fri, 26 May 2023 02:25:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59220 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242143AbjEZGZm (ORCPT ); Fri, 26 May 2023 02:25:42 -0400 Received: from ex01.ufhost.com (ex01.ufhost.com [61.152.239.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 13E9413D; Thu, 25 May 2023 23:25:38 -0700 (PDT) Received: from EXMBX165.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX165", Issuer "EXMBX165" (not verified)) by ex01.ufhost.com (Postfix) with ESMTP id 4F5AC24E1BE; Fri, 26 May 2023 14:25:32 +0800 (CST) Received: from EXMBX168.cuchost.com (172.16.6.78) by EXMBX165.cuchost.com (172.16.6.75) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 26 May 2023 14:25:32 +0800 Received: from williamqiu-virtual-machine.starfivetech.com (171.223.208.138) by EXMBX168.cuchost.com (172.16.6.78) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 26 May 2023 14:25:31 +0800 From: William Qiu To: , , , CC: Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Emil Renner Berthing , Ziv Xu , William Qiu Subject: [PATCH v1 2/3] spi: cadence-quadspi: Add clock configuration for StarFive JH7110 QSPI Date: Fri, 26 May 2023 14:25:28 +0800 Message-ID: <20230526062529.46747-3-william.qiu@starfivetech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230526062529.46747-1-william.qiu@starfivetech.com> References: <20230526062529.46747-1-william.qiu@starfivetech.com> MIME-Version: 1.0 X-Originating-IP: [171.223.208.138] X-ClientProxiedBy: EXCAS062.cuchost.com (172.16.6.22) To EXMBX168.cuchost.com (172.16.6.78) X-YovoleRuleAgent: yovoleflag Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Add QSPI clock operation in device probe. Signed-off-by: William Qiu Reviewed-by: Hal Feng --- drivers/spi/spi-cadence-quadspi.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/spi/spi-cadence-quadspi.c b/drivers/spi/spi-cadence-quadspi.c index 6ddb2dfc0f00..c6430fb3a0a4 100644 --- a/drivers/spi/spi-cadence-quadspi.c +++ b/drivers/spi/spi-cadence-quadspi.c @@ -1624,6 +1624,7 @@ static int cqspi_setup_flash(struct cqspi_st *cqspi) static int cqspi_probe(struct platform_device *pdev) { const struct cqspi_driver_platdata *ddata; + struct clk *qspi_ahb, *qspi_apb; struct reset_control *rstc, *rstc_ocp, *rstc_ref; struct device *dev = &pdev->dev; struct spi_master *master; @@ -1715,6 +1716,32 @@ static int cqspi_probe(struct platform_device *pdev) } if (of_device_is_compatible(pdev->dev.of_node, "starfive,jh7110-qspi")) { + qspi_ahb = devm_clk_get(dev, "qspi-ahb"); + if (IS_ERR(qspi_ahb)) { + dev_err(dev, "Cannot claim QSPI_AHB clock.\n"); + ret = PTR_ERR(qspi_ahb); + return ret; + } + + ret = clk_prepare_enable(qspi_ahb); + if (ret) { + dev_err(dev, "Cannot enable QSPI AHB clock.\n"); + goto probe_clk_failed; + } + + qspi_apb = devm_clk_get(dev, "qspi-apb"); + if (IS_ERR(qspi_apb)) { + dev_err(dev, "Cannot claim QSPI_APB clock.\n"); + ret = PTR_ERR(qspi_apb); + return ret; + } + + ret = clk_prepare_enable(qspi_apb); + if (ret) { + dev_err(dev, "Cannot enable QSPI APB clock.\n"); + goto probe_clk_failed; + } + rstc_ref = devm_reset_control_get_optional_exclusive(dev, "rstc_ref"); if (IS_ERR(rstc_ref)) { ret = PTR_ERR(rstc_ref);