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-rw-r--r--arch/arm/plat-mxc/dma-mx1-mx2.c17
-rw-r--r--arch/arm/plat-mxc/gpio.c2
-rw-r--r--arch/arm/plat-mxc/include/mach/board-mx27ads.h2
3 files changed, 7 insertions, 14 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
diff --git a/arch/arm/plat-mxc/gpio.c b/arch/arm/plat-mxc/gpio.c
index c6483bad8a2..89e95798cc3 100644
--- a/arch/arm/plat-mxc/gpio.c
+++ b/arch/arm/plat-mxc/gpio.c
@@ -124,7 +124,7 @@ static void mx3_gpio_irq_handler(u32 irq, struct irq_desc *desc)
irq_stat = __raw_readl(port->base + GPIO_ISR) &
__raw_readl(port->base + GPIO_IMR);
- BUG_ON(!irq_stat);
+
mxc_gpio_irq_handler(port, irq_stat);
}
#endif
diff --git a/arch/arm/plat-mxc/include/mach/board-mx27ads.h b/arch/arm/plat-mxc/include/mach/board-mx27ads.h
index 1cac9d1135c..d42f4e6116f 100644
--- a/arch/arm/plat-mxc/include/mach/board-mx27ads.h
+++ b/arch/arm/plat-mxc/include/mach/board-mx27ads.h
@@ -47,7 +47,7 @@
/*
* Base address of PBC controller, CS4
*/
-#define PBC_BASE_ADDRESS 0xEB000000
+#define PBC_BASE_ADDRESS 0xf4300000
#define PBC_REG_ADDR(offset) (void __force __iomem *) \
(PBC_BASE_ADDRESS + (offset))