diff options
Diffstat (limited to 'arch/arm/mach-rpc/dma.c')
| -rw-r--r-- | arch/arm/mach-rpc/dma.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/arch/arm/mach-rpc/dma.c b/arch/arm/mach-rpc/dma.c index fb48f3141fb4..488d5c3b37f4 100644 --- a/arch/arm/mach-rpc/dma.c +++ b/arch/arm/mach-rpc/dma.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * linux/arch/arm/mach-rpc/dma.c * * Copyright (C) 1998 Russell King * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * DMA functions specific to RiscPC architecture */ #include <linux/mman.h> @@ -151,6 +148,12 @@ static void iomd_free_dma(unsigned int chan, dma_t *dma) free_irq(idma->irq, idma); } +static struct device isa_dma_dev = { + .init_name = "fallback device", + .coherent_dma_mask = ~(dma_addr_t)0, + .dma_mask = &isa_dma_dev.coherent_dma_mask, +}; + static void iomd_enable_dma(unsigned int chan, dma_t *dma) { struct iomd_dma *idma = container_of(dma, struct iomd_dma, dma); @@ -168,7 +171,7 @@ static void iomd_enable_dma(unsigned int chan, dma_t *dma) idma->dma.sg = &idma->dma.buf; idma->dma.sgcount = 1; idma->dma.buf.length = idma->dma.count; - idma->dma.buf.dma_address = dma_map_single(NULL, + idma->dma.buf.dma_address = dma_map_single(&isa_dma_dev, idma->dma.addr, idma->dma.count, idma->dma.dma_mode == DMA_MODE_READ ? DMA_FROM_DEVICE : DMA_TO_DEVICE); |