linux-kernel - Re: [PATCH v3] spi/bcm63xx-hspi: Enable the clock before calling

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Message-ID: <20180425155028.GF24769@sirena.org.uk>
Date:   Wed, 25 Apr 2018 16:50:28 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Stefan Potyra <Stefan.Potyra@...ktrobit.com>
Cc:     Florian Fainelli <florian.fainelli@...adcom.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        bcm-kernel-feedback-list@...adcom.com, linux-spi@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Jonas Gorski <jonas.gorski@...il.com>,
        ldv-project@...uxtesting.org, sil2review@...ts.osadl.org
Subject: Re: [PATCH v3] spi/bcm63xx-hspi: Enable the clock before calling

On Wed, Apr 25, 2018 at 03:47:30PM +0200, Stefan Potyra wrote:

> +	ret = clk_prepare_enable(clk);
> +	if (ret)
> +		return ret;
> +
>  	rate = clk_get_rate(clk);
>  	if (!rate) {
>  		struct clk *pll_clk = devm_clk_get(dev, "pll");
>  
> -		if (IS_ERR(pll_clk))
> -			return PTR_ERR(pll_clk);
> +		if (IS_ERR(pll_clk)) {
> +			ret = PTR_ERR(pll_clk);
> +			goto out_disable_clk;
> +		}
> +
>  
>  		rate = clk_get_rate(pll_clk);

Isn't this just showing the same problem with not enabling the pll_clk
before getting the rate that you're trying to fix for the main clk?

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