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Diffstat (limited to 'arch/arm/mach-imx/dma-v1.c')
-rw-r--r--arch/arm/mach-imx/dma-v1.c26
1 files changed, 4 insertions, 22 deletions
diff --git a/arch/arm/mach-imx/dma-v1.c b/arch/arm/mach-imx/dma-v1.c
index 236f1495efad..42afc29a7da8 100644
--- a/arch/arm/mach-imx/dma-v1.c
+++ b/arch/arm/mach-imx/dma-v1.c
@@ -26,6 +26,7 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
+#include <linux/err.h>
#include <linux/errno.h>
#include <linux/clk.h>
#include <linux/scatterlist.h>
@@ -475,7 +476,6 @@ void imx_dma_enable(int channel)
imx_dmav1_writel(imx_dmav1_readl(DMA_CCR(channel)) | CCR_CEN |
CCR_ACRPT, DMA_CCR(channel));
-#ifdef CONFIG_ARCH_MX2
if ((cpu_is_mx21() || cpu_is_mx27()) &&
imxdma->sg && imx_dma_hw_chain(imxdma)) {
imxdma->sg = sg_next(imxdma->sg);
@@ -487,7 +487,6 @@ void imx_dma_enable(int channel)
DMA_CCR(channel));
}
}
-#endif
imxdma->in_use = 1;
local_irq_restore(flags);
@@ -518,7 +517,6 @@ void imx_dma_disable(int channel)
}
EXPORT_SYMBOL(imx_dma_disable);
-#ifdef CONFIG_ARCH_MX2
static void imx_dma_watchdog(unsigned long chno)
{
struct imx_dma_channel *imxdma = &imx_dma_channels[chno];
@@ -530,7 +528,6 @@ static void imx_dma_watchdog(unsigned long chno)
if (imxdma->err_handler)
imxdma->err_handler(chno, imxdma->data, IMX_DMA_ERR_TIMEOUT);
}
-#endif
static irqreturn_t dma_err_handler(int irq, void *dev_id)
{
@@ -654,10 +651,8 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id)
{
int i, disr;
-#ifdef CONFIG_ARCH_MX2
if (cpu_is_mx21() || cpu_is_mx27())
dma_err_handler(irq, dev_id);
-#endif
disr = imx_dmav1_readl(DMA_DISR);
@@ -703,7 +698,6 @@ int imx_dma_request(int channel, const char *name)
imxdma->name = name;
local_irq_restore(flags); /* request_irq() can block */
-#ifdef CONFIG_ARCH_MX2
if (cpu_is_mx21() || cpu_is_mx27()) {
ret = request_irq(MX2x_INT_DMACH0 + channel,
dma_irq_handler, 0, "DMA", NULL);
@@ -717,7 +711,6 @@ int imx_dma_request(int channel, const char *name)
imxdma->watchdog.function = &imx_dma_watchdog;
imxdma->watchdog.data = channel;
}
-#endif
return ret;
}
@@ -744,10 +737,8 @@ void imx_dma_free(int channel)
imx_dma_disable(channel);
imxdma->name = NULL;
-#ifdef CONFIG_ARCH_MX2
if (cpu_is_mx21() || cpu_is_mx27())
free_irq(MX2x_INT_DMACH0 + channel, NULL);
-#endif
local_irq_restore(flags);
}
@@ -803,21 +794,13 @@ static int __init imx_dma_init(void)
int ret = 0;
int i;
-#ifdef CONFIG_ARCH_MX1
if (cpu_is_mx1())
imx_dmav1_baseaddr = MX1_IO_ADDRESS(MX1_DMA_BASE_ADDR);
- else
-#endif
-#ifdef CONFIG_MACH_MX21
- if (cpu_is_mx21())
+ else if (cpu_is_mx21())
imx_dmav1_baseaddr = MX21_IO_ADDRESS(MX21_DMA_BASE_ADDR);
- else
-#endif
-#ifdef CONFIG_MACH_MX27
- if (cpu_is_mx27())
+ else if (cpu_is_mx27())
imx_dmav1_baseaddr = MX27_IO_ADDRESS(MX27_DMA_BASE_ADDR);
else
-#endif
return 0;
dma_clk = clk_get(NULL, "dma");
@@ -828,7 +811,6 @@ static int __init imx_dma_init(void)
/* reset DMA module */
imx_dmav1_writel(DCR_DRST, DMA_DCR);
-#ifdef CONFIG_ARCH_MX1
if (cpu_is_mx1()) {
ret = request_irq(MX1_DMA_INT, dma_irq_handler, 0, "DMA", NULL);
if (ret) {
@@ -843,7 +825,7 @@ static int __init imx_dma_init(void)
return ret;
}
}
-#endif
+
/* enable DMA module */
imx_dmav1_writel(DCR_DEN, DMA_DCR);