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Message-ID: <b0ddd1d0-9140-16a7-3cd8-18c9cd4e69f4@quicinc.com>
Date:   Wed, 2 Aug 2023 18:33:20 +0800
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Subject: Re: [PATCH 1/3] clk: Add the flag CLK_ENABLE_MUTEX_LOCK of enabling
 clock
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To:     Stephen Boyd <sboyd@kernel.org>, <agross@kernel.org>,
        <andersson@kernel.org>, <conor+dt@kernel.org>,
        <konrad.dybcio@linaro.org>, <krzysztof.kozlowski+dt@linaro.org>,
        <mturquette@baylibre.com>, <p.zabel@pengutronix.de>,
        <robh+dt@kernel.org>
CC:     <linux-arm-msm@vger.kernel.org>, <linux-clk@vger.kernel.org>,
        <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <quic_srichara@quicinc.com>
References: <20230801085352.22873-1-quic_luoj@quicinc.com>
 <20230801085352.22873-2-quic_luoj@quicinc.com>
 <02abeb64fb360245791b467b371f1491.sboyd@kernel.org>
From:   Jie Luo <quic_luoj@quicinc.com>
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On 8/2/2023 3:18 AM, Stephen Boyd wrote:
> Quoting Luo Jie (2023-08-01 01:53:50)
>> Support the clock controller where the HW register is
>> accessed by MDIO bus, the spin lock can't be used because
>> of sleep during the MDIO operation.
>>
>> Add the flag CLK_ENABLE_MUTEX_LOCK to hint clock framework
>> to use mutex lock instead of the spin lock.
> 
> Why can't you enable the MDIO bus clk in .prepare()?

thanks Stephen for the suggestion, let me check this and update patchset.