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| author | Jens Axboe <jens.axboe@oracle.com> | 2009-05-22 20:25:34 +0200 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2009-05-22 20:25:34 +0200 |
| commit | e4b636366c00738b9609cda307014d71b1225b7f (patch) | |
| tree | 760b67b3624eda62e943e48ce93635c30a5b47bf /arch/arm/plat-mxc/dma-mx1-mx2.c | |
| parent | xen-blkfront: beyond ARRAY_SIZE of info->shadow (diff) | |
| parent | Merge branch 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblaze (diff) | |
| download | linux-e4b636366c00738b9609cda307014d71b1225b7f.tar.xz linux-e4b636366c00738b9609cda307014d71b1225b7f.zip | |
Merge branch 'master' into for-2.6.31
Conflicts:
drivers/block/hd.c
drivers/block/mg_disk.c
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'arch/arm/plat-mxc/dma-mx1-mx2.c')
| -rw-r--r-- | arch/arm/plat-mxc/dma-mx1-mx2.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/arch/arm/plat-mxc/dma-mx1-mx2.c b/arch/arm/plat-mxc/dma-mx1-mx2.c index e364a5ed10f1..77646436c00e 100644 --- a/arch/arm/plat-mxc/dma-mx1-mx2.c +++ b/arch/arm/plat-mxc/dma-mx1-mx2.c @@ -693,12 +693,15 @@ int imx_dma_request(int channel, const char *name) local_irq_restore(flags); return -EBUSY; } + memset(imxdma, 0, sizeof(imxdma)); + imxdma->name = name; + local_irq_restore(flags); /* request_irq() can block */ #ifdef CONFIG_ARCH_MX2 ret = request_irq(MXC_INT_DMACH0 + channel, dma_irq_handler, 0, "DMA", NULL); if (ret) { - local_irq_restore(flags); + imxdma->name = NULL; printk(KERN_CRIT "Can't register IRQ %d for DMA channel %d\n", MXC_INT_DMACH0 + channel, channel); return ret; @@ -708,13 +711,6 @@ int imx_dma_request(int channel, const char *name) imxdma->watchdog.data = channel; #endif - imxdma->name = name; - imxdma->irq_handler = NULL; - imxdma->err_handler = NULL; - imxdma->data = NULL; - imxdma->sg = NULL; - - local_irq_restore(flags); return ret; } EXPORT_SYMBOL(imx_dma_request); @@ -737,10 +733,7 @@ void imx_dma_free(int channel) local_irq_save(flags); /* Disable interrupts */ - __raw_writel(__raw_readl(DMA_BASE + DMA_DIMR) | (1 << channel), - DMA_BASE + DMA_DIMR); - __raw_writel(__raw_readl(DMA_BASE + DMA_CCR(channel)) & ~CCR_CEN, - DMA_BASE + DMA_CCR(channel)); + imx_dma_disable(channel); imxdma->name = NULL; #ifdef CONFIG_ARCH_MX2 |