linux-kernel - Re: [PATCH v1 2/3] spi: cadence-quadspi: Add clock configuration for StarFive JH7110 QSPI

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Message-ID: <042c560d-1f36-8e97-3796-7423245592f4@starfivetech.com>
Date:   Mon, 29 May 2023 14:44:59 +0800
From:   William Qiu <william.qiu@...rfivetech.com>
To:     Mark Brown <broonie@...nel.org>
CC:     <devicetree@...r.kernel.org>, <linux-spi@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-riscv@...ts.infradead.org>,
        "Rob Herring" <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        "Emil Renner Berthing" <kernel@...il.dk>,
        Ziv Xu <ziv.xu@...rfivetech.com>
Subject: Re: [PATCH v1 2/3] spi: cadence-quadspi: Add clock configuration for
 StarFive JH7110 QSPI



On 2023/5/26 23:36, Mark Brown wrote:
> On Fri, May 26, 2023 at 02:25:28PM +0800, William Qiu wrote:
> 
>>  	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;
>> +		}
> 
> Nothing ever disables or unprepares this clock as far as I can tell?
> Perhaps also consider using the clk_bulk_ APIs.

I will add in next version.

Thanks for taking time to review this patch series and give useful
suggestions.

Best regards,
William