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path: root/drivers/dma/ioat_dma.c
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Diffstat (limited to 'drivers/dma/ioat_dma.c')
-rw-r--r--drivers/dma/ioat_dma.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c
index bc8c6e3470c..b0438c4f0c3 100644
--- a/drivers/dma/ioat_dma.c
+++ b/drivers/dma/ioat_dma.c
@@ -33,6 +33,7 @@
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/workqueue.h>
+#include <linux/i7300_idle.h>
#include "ioatdma.h"
#include "ioatdma_registers.h"
#include "ioatdma_hw.h"
@@ -171,6 +172,11 @@ static int ioat_dma_enumerate_channels(struct ioatdma_device *device)
xfercap_scale = readb(device->reg_base + IOAT_XFERCAP_OFFSET);
xfercap = (xfercap_scale == 0 ? -1 : (1UL << xfercap_scale));
+#ifdef CONFIG_I7300_IDLE_IOAT_CHANNEL
+ if (i7300_idle_platform_probe(NULL, NULL) == 0) {
+ device->common.chancnt--;
+ }
+#endif
for (i = 0; i < device->common.chancnt; i++) {
ioat_chan = kzalloc(sizeof(*ioat_chan), GFP_KERNEL);
if (!ioat_chan) {
@@ -971,11 +977,9 @@ static struct ioat_desc_sw *ioat_dma_get_next_descriptor(
switch (ioat_chan->device->version) {
case IOAT_VER_1_2:
return ioat1_dma_get_next_descriptor(ioat_chan);
- break;
case IOAT_VER_2_0:
case IOAT_VER_3_0:
return ioat2_dma_get_next_descriptor(ioat_chan);
- break;
}
return NULL;
}