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Subject: Re: [PATCH 1/3] clk: Add the flag CLK_ENABLE_MUTEX_LOCK of enabling clock
From:   Stephen Boyd <sboyd@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, Luo Jie <quic_luoj@quicinc.com>
To:     Luo Jie <quic_luoj@quicinc.com>, 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
Date:   Tue, 01 Aug 2023 12:18:40 -0700
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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.
>=20
> 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()?