acpi: Support generation of a GPIO/irq for a device

[platform/kernel/u-boot.git] / drivers / dma / bcm6348-iudma.c

diff --git a/drivers/dma/bcm6348-iudma.c b/drivers/dma/bcm6348-iudma.c
index 1d3c192..91172d4 100644 (file)
--- a/drivers/dma/bcm6348-iudma.c
+++ b/drivers/dma/bcm6348-iudma.c
@@ -17,11 +17,17 @@
 
 #include <common.h>
 #include <clk.h>
+#include <cpu_func.h>
 #include <dm.h>
 #include <dma-uclass.h>
+#include <log.h>
+#include <malloc.h>
 #include <memalign.h>
+#include <net.h>
 #include <reset.h>
 #include <asm/io.h>
+#include <linux/bitops.h>
+#include <linux/delay.h>
 
 #define DMA_RX_DESC    6
 #define DMA_TX_DESC    1
@@ -324,6 +330,9 @@ static int bcm6348_iudma_receive(struct dma *dma, void **dst, void *metadata)
        struct bcm6348_dma_desc *dma_desc = dma_desc = ch_priv->dma_ring;
        int ret;
 
+       if (!ch_priv->running)
+               return -EINVAL;
+
        /* get dma ring descriptor address */
        dma_desc += ch_priv->desc_id;
 
@@ -369,6 +378,9 @@ static int bcm6348_iudma_send(struct dma *dma, void *src, size_t len,
        struct bcm6348_dma_desc *dma_desc;
        uint16_t status;
 
+       if (!ch_priv->running)
+                return -EINVAL;
+
        /* flush cache */
        bcm6348_iudma_fdc(src, len);