diff options
| -rw-r--r-- | arch/arm64/include/asm/device.h | 1 | ||||
| -rw-r--r-- | arch/arm64/kernel/setup.c | 7 |
2 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/device.h b/arch/arm64/include/asm/device.h index 243ef256b8c9..eb4f47de7d7e 100644 --- a/arch/arm64/include/asm/device.h +++ b/arch/arm64/include/asm/device.h @@ -25,6 +25,7 @@ struct dev_archdata { }; struct pdev_archdata { + u64 dma_mask; }; #endif diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 8119479147db..33497844ae51 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -44,6 +44,7 @@ #include <linux/of_platform.h> #include <linux/efi.h> #include <linux/psci.h> +#include <linux/dma-mapping.h> #include <asm/acpi.h> #include <asm/fixmap.h> @@ -381,3 +382,9 @@ static int __init topology_init(void) return 0; } subsys_initcall(topology_init); + +void arch_setup_pdev_archdata(struct platform_device *pdev) +{ + pdev->archdata.dma_mask = DMA_BIT_MASK(32); + pdev->dev.dma_mask = &pdev->archdata.dma_mask; +} |