Currently, the dwc3 platform driver does not explicitly ask for
a DMA mask. This makes it fall back to the default 32-bit mask which
breaks the driver on systems that only have RAM starting above the
first 4G like the Apple M1 SoC.
Fix this by calling dma_set_mask_and_coherent with a 64bit mask.
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Link: https://lore.kernel.org/r/20210607061751.89752-1-sven@svenpeter.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dwc3_get_properties(dwc);
+ ret = dma_set_mask_and_coherent(dwc->sysdev, DMA_BIT_MASK(64));
+ if (ret)
+ return ret;
+
dwc->reset = devm_reset_control_array_get_optional_shared(dev);
if (IS_ERR(dwc->reset))
return PTR_ERR(dwc->reset);