diff options
| author |   Sven Peter <sven@svenpeter.dev> | 2021-06-07 08:17:51 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-09 11:23:33 +0200 |
| commit | 45d39448b4d0260743f25d88fd929451ec8296f2 (patch) | |
| tree | 73a87ee35d26f7c09e2cff688bcfa0cbcd068727 /drivers/usb/dwc3 | |
| parent | USB: core: Avoid WARNings for 0-length descriptor requests (diff) | |
| download | linux-dev-45d39448b4d0260743f25d88fd929451ec8296f2.tar.xz linux-dev-45d39448b4d0260743f25d88fd929451ec8296f2.zip | |
usb: dwc3: support 64 bit DMA in platform driver
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>
Diffstat (limited to 'drivers/usb/dwc3')
| -rw-r--r-- | drivers/usb/dwc3/core.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 5174031503ca..45b28e2f641d 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1545,6 +1545,10 @@ static int dwc3_probe(struct platform_device *pdev) 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); |