Messages in this thread | | | Date | Thu, 6 Aug 2020 13:37:22 +0100 | From | Mark Brown <> | Subject | Re: [PATCH] ASoC: fsl-asoc-card: Get "extal" clock rate by clk_get_rate |
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On Thu, Aug 06, 2020 at 03:39:45PM +0800, Shengjiu Wang wrote:
> } else if (of_node_name_eq(cpu_np, "esai")) { > + struct clk *esai_clk = clk_get(&cpu_pdev->dev, "extal"); > + > + if (!IS_ERR(esai_clk)) { > + priv->cpu_priv.sysclk_freq[TX] = clk_get_rate(esai_clk); > + priv->cpu_priv.sysclk_freq[RX] = clk_get_rate(esai_clk); > + clk_put(esai_clk); > + }
This should handle probe deferral. Also if this clock is in use shouldn't we be enabling it? It looks like it's intended to be a crystal so it's probably forced on all the time but sometimes there's power control for crystals, or perhaps someone might do something unusual with the hardware. [unhandled content-type:application/pgp-signature] | |