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Subject[PATCH] mmc: sdhci-bcm2835: Actually enable the clock
Date
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.

Signed-off-by: Eric Anholt <eric@anholt.net>
---
drivers/mmc/host/sdhci-bcm2835.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/mmc/host/sdhci-bcm2835.c b/drivers/mmc/host/sdhci-bcm2835.c
index 0ef0343..09aff3a 100644
--- a/drivers/mmc/host/sdhci-bcm2835.c
+++ b/drivers/mmc/host/sdhci-bcm2835.c
@@ -172,6 +172,11 @@ static int bcm2835_sdhci_probe(struct platform_device *pdev)
ret = PTR_ERR(pltfm_host->clk);
goto err;
}
+ ret = clk_prepare_enable(pltfm_host->clk);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to enable host clk\n");
+ goto err;
+ }

return sdhci_add_host(host);

--
2.1.4


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