diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-05-07 10:54:32 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-05-07 10:54:32 -0700 |
| commit | 2c66fa7e6be6bdb88587ac13ac1de080d5be4f95 (patch) | |
| tree | 6c11f9580c6d9c6e864aad015cf87a07741bcfb2 /arch/arm/plat-mxc/dma-mx1-mx2.c | |
| parent | 60db402780ec257b287de591d65157575952bb4a (diff) | |
| parent | ae51e609843f7d0aaeb1c2ad9f89d252a4899885 (diff) | |
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 5507/1: support R_ARM_MOVW_ABS_NC and MOVT_ABS relocation types
[ARM] 5506/1: davinci: DMA_32BIT_MASK --> DMA_BIT_MASK(32)
i.MX31: Disable CPU_32v6K in mx3_defconfig.
mx3fb: Fix compilation with CONFIG_PM
mx27ads: move PBC mapping out of vmalloc space
MXC: remove BUG_ON in interrupt handler
mx31: remove mx31moboard_defconfig
ARM: ARCH_MXC should select HAVE_CLK
mxc : BUG in imx_dma_request
mxc : Clean up properly when imx_dma_free() used without imx_dma_disable()
[ARM] mv78xx0: update defconfig
[ARM] orion5x: update defconfig
[ARM] Kirkwood: update defconfig
[ARM] Kconfig typo fix: "PXA930" -> "CPU_PXA930".
[ARM] S3C2412: Add missing cache flush in suspend code
[ARM] S3C: Add UDIVSLOT support for newer UARTS
[ARM] S3C64XX: Add S3C64XX_PA_IIS{0,1} to <mach/map.h>
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 e364a5ed10f..77646436c00 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 |