dmaengine: hsu: Include headers we are direct user of

For the sake of integrity, include headers we are direct user of.

Signed-off-by: Andy Shevchenko <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Vinod Koul <[e-mail]>

drivers/dma/hsu/hsu.c

···
  *    port 3, and so on.
  */
 
+#include <linux/bits.h>
 #include <linux/delay.h>
+#include <linux/device.h>
 #include <linux/dmaengine.h>
 #include <linux/dma-mapping.h>
 #include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
 #include <linux/module.h>
+#include <linux/percpu-defs.h>
+#include <linux/scatterlist.h>
 #include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/spinlock.h>
 
 #include "hsu.h"
 

drivers/dma/hsu/hsu.h

···
 #define __DMA_HSU_H__
 
 #include <linux/bits.h>
-#include <linux/spinlock.h>
+#include <linux/container_of.h>
+#include <linux/io.h>
+#include <linux/types.h>
+
 #include <linux/dma/hsu.h>
 
 #include "../virt-dma.h"

drivers/dma/hsu/pci.c

···
 
 #include <linux/bitops.h>
 #include <linux/device.h>
+#include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/pci.h>
 

include/linux/dma/hsu.h

···
 #ifndef _DMA_HSU_H
 #define _DMA_HSU_H
 
-#include <linux/device.h>
-#include <linux/interrupt.h>
+#include <linux/errno.h>
+#include <linux/kconfig.h>
+#include <linux/types.h>
 
 #include <linux/platform_data/dma-hsu.h>
 
+struct device;
 struct hsu_dma;
 
 /**

include/linux/platform_data/dma-hsu.h

···
 #ifndef _PLATFORM_DATA_DMA_HSU_H
 #define _PLATFORM_DATA_DMA_HSU_H
 
-#include <linux/device.h>
+struct device;
 
 struct hsu_dma_slave {
 	struct device	*dma_dev;