From 1df8130278c4543555fea697e5714fbac300b899 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 8 Dec 2008 15:58:50 +0000 Subject: [ARM] dma: remove dmach_t typedef Remove a pointless integer typedef. Signed-off-by: Russell King --- arch/arm/kernel/dma.c | 86 +++++++++++++++++++++++++-------------------------- 1 file changed, 43 insertions(+), 43 deletions(-) (limited to 'arch/arm/kernel/dma.c') diff --git a/arch/arm/kernel/dma.c b/arch/arm/kernel/dma.c index d006085ed7e7..c31bf00e5bae 100644 --- a/arch/arm/kernel/dma.c +++ b/arch/arm/kernel/dma.c @@ -30,12 +30,12 @@ static dma_t dma_chan[MAX_DMA_CHANNELS]; * * On certain platforms, we have to allocate an interrupt as well... */ -int request_dma(dmach_t channel, const char *device_id) +int request_dma(unsigned int chan, const char *device_id) { - dma_t *dma = dma_chan + channel; + dma_t *dma = dma_chan + chan; int ret; - if (channel >= MAX_DMA_CHANNELS || !dma->d_ops) + if (chan >= MAX_DMA_CHANNELS || !dma->d_ops) goto bad_dma; if (xchg(&dma->lock, 1) != 0) @@ -47,7 +47,7 @@ int request_dma(dmach_t channel, const char *device_id) ret = 0; if (dma->d_ops->request) - ret = dma->d_ops->request(channel, dma); + ret = dma->d_ops->request(chan, dma); if (ret) xchg(&dma->lock, 0); @@ -55,7 +55,7 @@ int request_dma(dmach_t channel, const char *device_id) return ret; bad_dma: - printk(KERN_ERR "dma: trying to allocate DMA%d\n", channel); + printk(KERN_ERR "dma: trying to allocate DMA%d\n", chan); return -EINVAL; busy: @@ -68,42 +68,42 @@ EXPORT_SYMBOL(request_dma); * * On certain platforms, we have to free interrupt as well... */ -void free_dma(dmach_t channel) +void free_dma(unsigned int chan) { - dma_t *dma = dma_chan + channel; + dma_t *dma = dma_chan + chan; - if (channel >= MAX_DMA_CHANNELS || !dma->d_ops) + if (chan >= MAX_DMA_CHANNELS || !dma->d_ops) goto bad_dma; if (dma->active) { - printk(KERN_ERR "dma%d: freeing active DMA\n", channel); - dma->d_ops->disable(channel, dma); + printk(KERN_ERR "dma%d: freeing active DMA\n", chan); + dma->d_ops->disable(chan, dma); dma->active = 0; } if (xchg(&dma->lock, 0) != 0) { if (dma->d_ops->free) - dma->d_ops->free(channel, dma); + dma->d_ops->free(chan, dma); return; } - printk(KERN_ERR "dma%d: trying to free free DMA\n", channel); + printk(KERN_ERR "dma%d: trying to free free DMA\n", chan); return; bad_dma: - printk(KERN_ERR "dma: trying to free DMA%d\n", channel); + printk(KERN_ERR "dma: trying to free DMA%d\n", chan); } EXPORT_SYMBOL(free_dma); /* Set DMA Scatter-Gather list */ -void set_dma_sg (dmach_t channel, struct scatterlist *sg, int nr_sg) +void set_dma_sg (unsigned int chan, struct scatterlist *sg, int nr_sg) { - dma_t *dma = dma_chan + channel; + dma_t *dma = dma_chan + chan; if (dma->active) printk(KERN_ERR "dma%d: altering DMA SG while " - "DMA active\n", channel); + "DMA active\n", chan); dma->sg = sg; dma->sgcount = nr_sg; @@ -115,13 +115,13 @@ EXPORT_SYMBOL(set_dma_sg); * * Copy address to the structure, and set the invalid bit */ -void __set_dma_addr (dmach_t channel, void *addr) +void __set_dma_addr (unsigned int chan, void *addr) { - dma_t *dma = dma_chan + channel; + dma_t *dma = dma_chan + chan; if (dma->active) printk(KERN_ERR "dma%d: altering DMA address while " - "DMA active\n", channel); + "DMA active\n", chan); dma->sg = NULL; dma->addr = addr; @@ -133,13 +133,13 @@ EXPORT_SYMBOL(__set_dma_addr); * * Copy address to the structure, and set the invalid bit */ -void set_dma_count (dmach_t channel, unsigned long count) +void set_dma_count (unsigned int chan, unsigned long count) { - dma_t *dma = dma_chan + channel; + dma_t *dma = dma_chan + chan; if (dma->active) printk(KERN_ERR "dma%d: altering DMA count while " - "DMA active\n", channel); + "DMA active\n", chan); dma->sg = NULL; dma->count = count; @@ -149,13 +149,13 @@ EXPORT_SYMBOL(set_dma_count); /* Set DMA direction mode */ -void set_dma_mode (dmach_t channel, dmamode_t mode) +void set_dma_mode (unsigned int chan, dmamode_t mode) { - dma_t *dma = dma_chan + channel; + dma_t *dma = dma_chan + chan; if (dma->active) printk(KERN_ERR "dma%d: altering DMA mode while " - "DMA active\n", channel); + "DMA active\n", chan); dma->dma_mode = mode; dma->invalid = 1; @@ -164,42 +164,42 @@ EXPORT_SYMBOL(set_dma_mode); /* Enable DMA channel */ -void enable_dma (dmach_t channel) +void enable_dma (unsigned int chan) { - dma_t *dma = dma_chan + channel; + dma_t *dma = dma_chan + chan; if (!dma->lock) goto free_dma; if (dma->active == 0) { dma->active = 1; - dma->d_ops->enable(channel, dma); + dma->d_ops->enable(chan, dma); } return; free_dma: - printk(KERN_ERR "dma%d: trying to enable free DMA\n", channel); + printk(KERN_ERR "dma%d: trying to enable free DMA\n", chan); BUG(); } EXPORT_SYMBOL(enable_dma); /* Disable DMA channel */ -void disable_dma (dmach_t channel) +void disable_dma (unsigned int chan) { - dma_t *dma = dma_chan + channel; + dma_t *dma = dma_chan + chan; if (!dma->lock) goto free_dma; if (dma->active == 1) { dma->active = 0; - dma->d_ops->disable(channel, dma); + dma->d_ops->disable(chan, dma); } return; free_dma: - printk(KERN_ERR "dma%d: trying to disable free DMA\n", channel); + printk(KERN_ERR "dma%d: trying to disable free DMA\n", chan); BUG(); } EXPORT_SYMBOL(disable_dma); @@ -207,36 +207,36 @@ EXPORT_SYMBOL(disable_dma); /* * Is the specified DMA channel active? */ -int dma_channel_active(dmach_t channel) +int dma_channel_active(unsigned int chan) { - return dma_chan[channel].active; + return dma_chan[chan].active; } EXPORT_SYMBOL(dma_channel_active); -void set_dma_page(dmach_t channel, char pagenr) +void set_dma_page(unsigned int chan, char pagenr) { - printk(KERN_ERR "dma%d: trying to set_dma_page\n", channel); + printk(KERN_ERR "dma%d: trying to set_dma_page\n", chan); } EXPORT_SYMBOL(set_dma_page); -void set_dma_speed(dmach_t channel, int cycle_ns) +void set_dma_speed(unsigned int chan, int cycle_ns) { - dma_t *dma = dma_chan + channel; + dma_t *dma = dma_chan + chan; int ret = 0; if (dma->d_ops->setspeed) - ret = dma->d_ops->setspeed(channel, dma, cycle_ns); + ret = dma->d_ops->setspeed(chan, dma, cycle_ns); dma->speed = ret; } EXPORT_SYMBOL(set_dma_speed); -int get_dma_residue(dmach_t channel) +int get_dma_residue(unsigned int chan) { - dma_t *dma = dma_chan + channel; + dma_t *dma = dma_chan + chan; int ret = 0; if (dma->d_ops->residue) - ret = dma->d_ops->residue(channel, dma); + ret = dma->d_ops->residue(chan, dma); return ret; } -- cgit v1.2.3 From 3afb6e9c635f735c751148beddc195daec0e35ec Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 8 Dec 2008 16:08:48 +0000 Subject: [ARM] dma: factor out code looking up the DMA channel This is a preparitory patch to allow us to easily change the way we add and lookup DMA channel structures. Signed-off-by: Russell King --- arch/arm/kernel/dma.c | 38 ++++++++++++++++++++++++-------------- 1 file changed, 24 insertions(+), 14 deletions(-) (limited to 'arch/arm/kernel/dma.c') diff --git a/arch/arm/kernel/dma.c b/arch/arm/kernel/dma.c index c31bf00e5bae..0ffea3fc22db 100644 --- a/arch/arm/kernel/dma.c +++ b/arch/arm/kernel/dma.c @@ -25,6 +25,16 @@ EXPORT_SYMBOL(dma_spin_lock); static dma_t dma_chan[MAX_DMA_CHANNELS]; +static inline dma_t *dma_channel(unsigned int chan) +{ + dma_t *dma = dma_chan + chan; + + if (chan >= MAX_DMA_CHANNELS || !dma->d_ops) + return NULL; + + return dma; +} + /* * Request DMA channel * @@ -32,10 +42,10 @@ static dma_t dma_chan[MAX_DMA_CHANNELS]; */ int request_dma(unsigned int chan, const char *device_id) { - dma_t *dma = dma_chan + chan; + dma_t *dma = dma_channel(chan); int ret; - if (chan >= MAX_DMA_CHANNELS || !dma->d_ops) + if (!dma) goto bad_dma; if (xchg(&dma->lock, 1) != 0) @@ -70,9 +80,9 @@ EXPORT_SYMBOL(request_dma); */ void free_dma(unsigned int chan) { - dma_t *dma = dma_chan + chan; + dma_t *dma = dma_channel(chan); - if (chan >= MAX_DMA_CHANNELS || !dma->d_ops) + if (!dma) goto bad_dma; if (dma->active) { @@ -99,7 +109,7 @@ EXPORT_SYMBOL(free_dma); */ void set_dma_sg (unsigned int chan, struct scatterlist *sg, int nr_sg) { - dma_t *dma = dma_chan + chan; + dma_t *dma = dma_channel(chan); if (dma->active) printk(KERN_ERR "dma%d: altering DMA SG while " @@ -117,7 +127,7 @@ EXPORT_SYMBOL(set_dma_sg); */ void __set_dma_addr (unsigned int chan, void *addr) { - dma_t *dma = dma_chan + chan; + dma_t *dma = dma_channel(chan); if (dma->active) printk(KERN_ERR "dma%d: altering DMA address while " @@ -135,7 +145,7 @@ EXPORT_SYMBOL(__set_dma_addr); */ void set_dma_count (unsigned int chan, unsigned long count) { - dma_t *dma = dma_chan + chan; + dma_t *dma = dma_channel(chan); if (dma->active) printk(KERN_ERR "dma%d: altering DMA count while " @@ -151,7 +161,7 @@ EXPORT_SYMBOL(set_dma_count); */ void set_dma_mode (unsigned int chan, dmamode_t mode) { - dma_t *dma = dma_chan + chan; + dma_t *dma = dma_channel(chan); if (dma->active) printk(KERN_ERR "dma%d: altering DMA mode while " @@ -166,7 +176,7 @@ EXPORT_SYMBOL(set_dma_mode); */ void enable_dma (unsigned int chan) { - dma_t *dma = dma_chan + chan; + dma_t *dma = dma_channel(chan); if (!dma->lock) goto free_dma; @@ -187,7 +197,7 @@ EXPORT_SYMBOL(enable_dma); */ void disable_dma (unsigned int chan) { - dma_t *dma = dma_chan + chan; + dma_t *dma = dma_channel(chan); if (!dma->lock) goto free_dma; @@ -209,7 +219,8 @@ EXPORT_SYMBOL(disable_dma); */ int dma_channel_active(unsigned int chan) { - return dma_chan[chan].active; + dma_t *dma = dma_channel(chan); + return dma->active; } EXPORT_SYMBOL(dma_channel_active); @@ -221,7 +232,7 @@ EXPORT_SYMBOL(set_dma_page); void set_dma_speed(unsigned int chan, int cycle_ns) { - dma_t *dma = dma_chan + chan; + dma_t *dma = dma_channel(chan); int ret = 0; if (dma->d_ops->setspeed) @@ -232,7 +243,7 @@ EXPORT_SYMBOL(set_dma_speed); int get_dma_residue(unsigned int chan) { - dma_t *dma = dma_chan + chan; + dma_t *dma = dma_channel(chan); int ret = 0; if (dma->d_ops->residue) @@ -247,5 +258,4 @@ static int __init init_dma(void) arch_dma_init(dma_chan); return 0; } - core_initcall(init_dma); -- cgit v1.2.3 From 2f757f2ab7411cf0e2779012d8cda0cbf2f80d26 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 8 Dec 2008 16:33:30 +0000 Subject: [ARM] dma: rejig DMA initialization Rather than having the central DMA multiplexer call the architecture specific DMA initialization function, have each architecture DMA initialization function use core_initcall(), and register each DMA channel separately with the multiplexer. This removes the array of dma structures in the central multiplexer, replacing it with an array of pointers instead; this is more flexible since it allows the drivers to wrap the DMA structure (eventually allowing us to transition non-ISA DMA drivers away.) Signed-off-by: Russell King --- arch/arm/include/asm/mach/dma.h | 12 +++++--- arch/arm/kernel/dma-isa.c | 18 +++++++++-- arch/arm/kernel/dma.c | 25 +++++++-------- arch/arm/mach-footbridge/dma.c | 6 ++-- arch/arm/mach-rpc/dma.c | 68 +++++++++++++++++++++++++++-------------- arch/arm/mach-shark/dma.c | 6 ++-- 6 files changed, 88 insertions(+), 47 deletions(-) (limited to 'arch/arm/kernel/dma.c') diff --git a/arch/arm/include/asm/mach/dma.h b/arch/arm/include/asm/mach/dma.h index 281ae7e40a90..38a3693f1258 100644 --- a/arch/arm/include/asm/mach/dma.h +++ b/arch/arm/include/asm/mach/dma.h @@ -48,10 +48,12 @@ struct dma_struct { struct dma_ops *d_ops; }; -/* Prototype: void arch_dma_init(dma) - * Purpose : Initialise architecture specific DMA - * Params : dma - pointer to array of DMA structures +/* + * isa_dma_add - add an ISA-style DMA channel */ -extern void arch_dma_init(dma_t *dma); +extern int isa_dma_add(unsigned int, dma_t *dma); -extern void isa_init_dma(dma_t *dma); +/* + * Add the ISA DMA controller. Always takes channels 0-7. + */ +extern void isa_init_dma(void); diff --git a/arch/arm/kernel/dma-isa.c b/arch/arm/kernel/dma-isa.c index 29eca48925d8..da02a7ff3419 100644 --- a/arch/arm/kernel/dma-isa.c +++ b/arch/arm/kernel/dma-isa.c @@ -160,7 +160,12 @@ static struct resource dma_resources[] = { { .end = 0x048f } }; -void __init isa_init_dma(dma_t *dma) +static dma_t isa_dma[8]; + +/* + * ISA DMA always starts at channel 0 + */ +void __init isa_init_dma(void) { /* * Try to autodetect presence of an ISA DMA controller. @@ -178,10 +183,10 @@ void __init isa_init_dma(dma_t *dma) outb(0xaa, 0x00); if (inb(0) == 0x55 && inb(0) == 0xaa) { - int chan, i; + unsigned int chan, i; for (chan = 0; chan < 8; chan++) { - dma[chan].d_ops = &isa_dma_ops; + isa_dma[chan].d_ops = &isa_dma_ops; isa_disable_dma(chan, NULL); } @@ -217,5 +222,12 @@ void __init isa_init_dma(dma_t *dma) for (i = 0; i < ARRAY_SIZE(dma_resources); i++) request_resource(&ioport_resource, dma_resources + i); + + for (chan = 0; chan < 8; chan++) { + int ret = isa_dma_add(chan, &isa_dma[chan]); + if (ret) + printk(KERN_ERR "ISADMA%u: unable to register: %d\n", + chan, ret); + } } } diff --git a/arch/arm/kernel/dma.c b/arch/arm/kernel/dma.c index 0ffea3fc22db..aab24f03ea14 100644 --- a/arch/arm/kernel/dma.c +++ b/arch/arm/kernel/dma.c @@ -23,16 +23,24 @@ DEFINE_SPINLOCK(dma_spin_lock); EXPORT_SYMBOL(dma_spin_lock); -static dma_t dma_chan[MAX_DMA_CHANNELS]; +static dma_t *dma_chan[MAX_DMA_CHANNELS]; static inline dma_t *dma_channel(unsigned int chan) { - dma_t *dma = dma_chan + chan; - - if (chan >= MAX_DMA_CHANNELS || !dma->d_ops) + if (chan >= MAX_DMA_CHANNELS) return NULL; - return dma; + return dma_chan[chan]; +} + +int __init isa_dma_add(unsigned int chan, dma_t *dma) +{ + if (!dma->d_ops) + return -EINVAL; + if (dma_chan[chan]) + return -EBUSY; + dma_chan[chan] = dma; + return 0; } /* @@ -252,10 +260,3 @@ int get_dma_residue(unsigned int chan) return ret; } EXPORT_SYMBOL(get_dma_residue); - -static int __init init_dma(void) -{ - arch_dma_init(dma_chan); - return 0; -} -core_initcall(init_dma); diff --git a/arch/arm/mach-footbridge/dma.c b/arch/arm/mach-footbridge/dma.c index e7b8a6adaf7a..fdd94b182d78 100644 --- a/arch/arm/mach-footbridge/dma.c +++ b/arch/arm/mach-footbridge/dma.c @@ -41,7 +41,7 @@ static struct dma_ops fb_dma_ops = { }; #endif -void __init arch_dma_init(dma_t *dma) +static int __init fb_dma_init(void) { #if 0 dma[_DC21285_DMA(0)].d_ops = &fb_dma_ops; @@ -49,6 +49,8 @@ void __init arch_dma_init(dma_t *dma) #endif #ifdef CONFIG_ISA_DMA if (footbridge_cfn_mode()) - isa_init_dma(dma + _ISA_DMA(0)); + isa_init_dma(); #endif + return 0; } +core_initcall(fb_dma_init); diff --git a/arch/arm/mach-rpc/dma.c b/arch/arm/mach-rpc/dma.c index a86d3ed859a7..efcf6718d1d0 100644 --- a/arch/arm/mach-rpc/dma.c +++ b/arch/arm/mach-rpc/dma.c @@ -302,8 +302,22 @@ static struct dma_ops sound_dma_ops = { .disable = sound_enable_disable_dma, }; -void __init arch_dma_init(dma_t *dma) +static dma_t iomd_dma[6]; + +static dma_t floppy_dma = { + .dma_irq = FIQ_FLOPPYDATA, + .d_ops = &floppy_dma_ops, +}; + +static dma_t sound_dma = { + .d_ops = &sound_dma_ops, +}; + +static int __init rpc_dma_init(void) { + unsigned int i; + int ret; + iomd_writeb(0, IOMD_IO0CR); iomd_writeb(0, IOMD_IO1CR); iomd_writeb(0, IOMD_IO2CR); @@ -311,31 +325,39 @@ void __init arch_dma_init(dma_t *dma) iomd_writeb(0xa0, IOMD_DMATCR); - dma[DMA_0].dma_base = IOMD_IO0CURA; - dma[DMA_0].dma_irq = IRQ_DMA0; - dma[DMA_0].d_ops = &iomd_dma_ops; - dma[DMA_1].dma_base = IOMD_IO1CURA; - dma[DMA_1].dma_irq = IRQ_DMA1; - dma[DMA_1].d_ops = &iomd_dma_ops; - dma[DMA_2].dma_base = IOMD_IO2CURA; - dma[DMA_2].dma_irq = IRQ_DMA2; - dma[DMA_2].d_ops = &iomd_dma_ops; - dma[DMA_3].dma_base = IOMD_IO3CURA; - dma[DMA_3].dma_irq = IRQ_DMA3; - dma[DMA_3].d_ops = &iomd_dma_ops; - dma[DMA_S0].dma_base = IOMD_SD0CURA; - dma[DMA_S0].dma_irq = IRQ_DMAS0; - dma[DMA_S0].d_ops = &iomd_dma_ops; - dma[DMA_S1].dma_base = IOMD_SD1CURA; - dma[DMA_S1].dma_irq = IRQ_DMAS1; - dma[DMA_S1].d_ops = &iomd_dma_ops; - dma[DMA_VIRTUAL_FLOPPY].dma_irq = FIQ_FLOPPYDATA; - dma[DMA_VIRTUAL_FLOPPY].d_ops = &floppy_dma_ops; - dma[DMA_VIRTUAL_SOUND].d_ops = &sound_dma_ops; - /* * Setup DMA channels 2,3 to be for podules * and channels 0,1 for internal devices */ iomd_writeb(DMA_EXT_IO3|DMA_EXT_IO2, IOMD_DMAEXT); + + iomd_dma[DMA_0].dma_base = IOMD_IO0CURA; + iomd_dma[DMA_0].dma_irq = IRQ_DMA0; + iomd_dma[DMA_1].dma_base = IOMD_IO1CURA; + iomd_dma[DMA_1].dma_irq = IRQ_DMA1; + iomd_dma[DMA_2].dma_base = IOMD_IO2CURA; + iomd_dma[DMA_2].dma_irq = IRQ_DMA2; + iomd_dma[DMA_3].dma_base = IOMD_IO3CURA; + iomd_dma[DMA_3].dma_irq = IRQ_DMA3; + iomd_dma[DMA_S0].dma_base = IOMD_SD0CURA; + iomd_dma[DMA_S0].dma_irq = IRQ_DMAS0; + iomd_dma[DMA_S1].dma_base = IOMD_SD1CURA; + iomd_dma[DMA_S1].dma_irq = IRQ_DMAS1; + + for (i = DMA_0; i <= DMA_S1; i++) { + iomd_dma[i].d_ops = &iomd_dma_ops; + + ret = isa_dma_add(i, &iomd_dma[i]); + if (ret) + printk("IOMDDMA%u: unable to register: %d\n", i, ret); + } + + ret = isa_dma_add(DMA_VIRTUAL_FLOPPY, &floppy_dma); + if (ret) + printk("IOMDFLOPPY: unable to register: %d\n", ret); + ret = isa_dma_add(DMA_VIRTUAL_SOUND, &sound_dma); + if (ret) + printk("IOMDSOUND: unable to register: %d\n", ret); + return 0; } +core_initcall(rpc_dma_init); diff --git a/arch/arm/mach-shark/dma.c b/arch/arm/mach-shark/dma.c index 6774b8d5d13d..10b5b8b3272a 100644 --- a/arch/arm/mach-shark/dma.c +++ b/arch/arm/mach-shark/dma.c @@ -13,9 +13,11 @@ #include #include -void __init arch_dma_init(dma_t *dma) +static int __init shark_dma_init(void) { #ifdef CONFIG_ISA_DMA - isa_init_dma(dma); + isa_init_dma(); #endif + return 0; } +core_initcall(shark_dma_init); -- cgit v1.2.3 From d667522fdf637ef1b425518afe11aedba80364b2 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 8 Dec 2008 17:50:25 +0000 Subject: [ARM] dma: ensure that the single entry sg is properly initialized Signed-off-by: Russell King --- arch/arm/kernel/dma.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/arm/kernel/dma.c') diff --git a/arch/arm/kernel/dma.c b/arch/arm/kernel/dma.c index aab24f03ea14..e7828fcd9544 100644 --- a/arch/arm/kernel/dma.c +++ b/arch/arm/kernel/dma.c @@ -15,6 +15,7 @@ #include #include #include +#include #include @@ -37,6 +38,9 @@ int __init isa_dma_add(unsigned int chan, dma_t *dma) { if (!dma->d_ops) return -EINVAL; + + sg_init_table(&dma->buf, 1); + if (dma_chan[chan]) return -EBUSY; dma_chan[chan] = dma; -- cgit v1.2.3 From f0ffc816250a8cc28e6824326e2d58333e058eca Mon Sep 17 00:00:00 2001 From: Russell King Date: Fri, 2 Jan 2009 12:34:55 +0000 Subject: [ARM] dma: remove dmamode_t typedef Signed-off-by: Russell King --- arch/arm/include/asm/dma.h | 7 +------ arch/arm/include/asm/mach/dma.h | 2 +- arch/arm/kernel/dma.c | 2 +- 3 files changed, 3 insertions(+), 8 deletions(-) (limited to 'arch/arm/kernel/dma.c') diff --git a/arch/arm/include/asm/dma.h b/arch/arm/include/asm/dma.h index 59f59c6c79f7..7edf3536df24 100644 --- a/arch/arm/include/asm/dma.h +++ b/arch/arm/include/asm/dma.h @@ -21,11 +21,6 @@ #include -/* - * DMA modes - */ -typedef unsigned int dmamode_t; - /* * The DMA modes reflect the settings for the ISA DMA controller */ @@ -125,7 +120,7 @@ extern void set_dma_count(unsigned int chan, unsigned long count); * DMA transfer direction immediately, but defer it to the * enable_dma(). */ -extern void set_dma_mode(unsigned int chan, dmamode_t mode); +extern void set_dma_mode(unsigned int chan, unsigned int mode); /* Set the transfer speed for this channel */ diff --git a/arch/arm/include/asm/mach/dma.h b/arch/arm/include/asm/mach/dma.h index 3122adae80be..5166145d8a3c 100644 --- a/arch/arm/include/asm/mach/dma.h +++ b/arch/arm/include/asm/mach/dma.h @@ -34,7 +34,7 @@ struct dma_struct { unsigned int active:1; /* Transfer active */ unsigned int invalid:1; /* Address/Count changed */ - dmamode_t dma_mode; /* DMA mode */ + unsigned int dma_mode; /* DMA mode */ int speed; /* DMA speed */ unsigned int lock; /* Device is allocated */ diff --git a/arch/arm/kernel/dma.c b/arch/arm/kernel/dma.c index e7828fcd9544..7d5b9fb01e71 100644 --- a/arch/arm/kernel/dma.c +++ b/arch/arm/kernel/dma.c @@ -171,7 +171,7 @@ EXPORT_SYMBOL(set_dma_count); /* Set DMA direction mode */ -void set_dma_mode (unsigned int chan, dmamode_t mode) +void set_dma_mode (unsigned int chan, unsigned int mode) { dma_t *dma = dma_channel(chan); -- cgit v1.2.3