On 05/29/2015 03:06 PM, Eric Anholt wrote: > We're currently using a fixed frequency clock specified in the DT, so > enabling is a no-op. However, the RPi firmware-based clocks driver > can actually disable unused clocks, so when switching to use it we > ended up losing our MMC clock once all devices were probed. > diff --git a/drivers/mmc/host/sdhci-bcm2835.c b/drivers/mmc/host/sdhci-bcm2835.c > + ret = clk_prepare_enable(pltfm_host->clk); > + if (ret) { > + dev_err(&pdev->dev, "failed to enable host clk\n"); > + goto err; > + } Given that pltfm_host is a "struct sdhci_pltfm_host" i.e. a type defined/handled by sdhci-pltfm.c , I'm rather surprised that sdhci-pltfm.c doesn't do this itself. Wouldn't it make sense for it to do so? -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html