diff options
Diffstat (limited to 'arch/arm/kernel/dma-isa.c')
| -rw-r--r-- | arch/arm/kernel/dma-isa.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/arch/arm/kernel/dma-isa.c b/arch/arm/kernel/dma-isa.c index 84363fe7bad2..2d90ecce5a11 100644 --- a/arch/arm/kernel/dma-isa.c +++ b/arch/arm/kernel/dma-isa.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * linux/arch/arm/kernel/dma-isa.c * * Copyright (C) 1999-2000 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. - * * ISA DMA primitives * Taken from various sources, including: * linux/include/asm/dma.h: Defines for using and allocating dma channels. @@ -55,6 +52,12 @@ static int isa_get_dma_residue(unsigned int chan, dma_t *dma) return chan < 4 ? count : (count << 1); } +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 isa_enable_dma(unsigned int chan, dma_t *dma) { if (dma->invalid) { @@ -89,7 +92,7 @@ static void isa_enable_dma(unsigned int chan, dma_t *dma) dma->sg = &dma->buf; dma->sgcount = 1; dma->buf.length = dma->count; - dma->buf.dma_address = dma_map_single(NULL, + dma->buf.dma_address = dma_map_single(&isa_dma_dev, dma->addr, dma->count, direction); } |