| Message ID | 346c004b599fb77a2006a4eeb992b30feb06fce5.1531239284.git.robin.murphy@arm.com |
|---|---|
| State | RFC, archived |
| Headers | show |
| Series | Stop losing firmware-set DMA masks | expand |
diff --git a/drivers/of/device.c b/drivers/of/device.c index 33d85511d790..0d39633e8545 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -149,6 +149,7 @@ int of_dma_configure(struct device *dev, struct device_node *np, bool force_dma) * set by the driver. */ mask = DMA_BIT_MASK(ilog2(dma_addr + size - 1) + 1); + dev->bus_dma_mask = mask; dev->coherent_dma_mask &= mask; *dev->dma_mask &= mask;
When an explicit DMA limit is described by firmware, we need to remember it regardless of how drivers might subsequently update their devices' masks. The new bus_dma_mask field does that. Signed-off-by: Robin Murphy <robin.murphy@arm.com> --- drivers/of/device.c | 1 + 1 file changed, 1 insertion(+)