Hi Russell,

On Tue, Sep 17, 2019 at 10:10 AM Russell King - ARM Linux admin
[off-list ref] wrote:

Will suggested reverting bd2e75633c80 ("dma-contiguous: use fallback
alloc_pages for single pages") which has been implicated in the same
problem here:

https://www.spinics.net/lists/arm-kernel/msg750623.html

It seems that the final fix was:
https://lore.kernel.org/patchwork/patch/1121600/

Does it work for you if we follow the same idea?

--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c

@@ -1105,6 +1105,7 @@ static int sdhci_esdhc_probe(struct platform_device *pdev)

        esdhc_init(pdev, host);

+       sdhci_enable_v4_mode(host);
        sdhci_get_of_property(pdev);

        pltfm_host = sdhci_priv(host);

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