[PATCH 4/4] MIPS: dma: simplify source structure

[Denis Orlov <denorl2009@gmail.com>]

There is no reason to keep code from 'dma-mapping.h' in a separate file,
so merge it into 'dma.h'.

Signed-off-by: Denis Orlov <denorl2009@gmail.com>
---
 arch/mips/include/asm/dma-mapping.h | 40 -----------------------------
 arch/mips/include/asm/dma.h         | 31 +++++++++++++++++++++-
 2 files changed, 30 insertions(+), 41 deletions(-)
 delete mode 100644 arch/mips/include/asm/dma-mapping.h

diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
deleted file mode 100644
index 9f6ec03e3b..0000000000
--- a/arch/mips/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#ifndef _ASM_DMA_MAPPING_H
-#define _ASM_DMA_MAPPING_H
-
-#include <common.h>
-#include <xfuncs.h>
-#include <asm/addrspace.h>
-#include <asm/types.h>
-#include <malloc.h>
-#include <asm/io.h>
-
-#define dma_alloc_coherent dma_alloc_coherent
-static inline void *dma_alloc_coherent(size_t size, dma_addr_t *dma_handle)
-{
-	void *ret;
-
-	ret = xmemalign(PAGE_SIZE, size);
-
-	memset(ret, 0, size);
-
-	if (dma_handle)
-		*dma_handle = CPHYSADDR(ret);
-
-	dma_flush_range((unsigned long)ret, (unsigned long)(ret + size));
-
-	return (void *)CKSEG1ADDR(ret);
-}
-
-#define dma_free_coherent dma_free_coherent
-static inline void dma_free_coherent(void *vaddr, dma_addr_t dma_handle,
-				     size_t size)
-{
-	if (IS_ENABLED(CONFIG_MMU) && vaddr)
-		free((void *)CKSEG0ADDR(vaddr));
-	else
-		free(vaddr);
-}
-
-#endif /* _ASM_DMA_MAPPING_H */
diff --git a/arch/mips/include/asm/dma.h b/arch/mips/include/asm/dma.h
index 49eeaac1a2..62d9c7c548 100644
--- a/arch/mips/include/asm/dma.h
+++ b/arch/mips/include/asm/dma.h
@@ -7,8 +7,12 @@
 #define __ASM_DMA_H
 
 #include <common.h>
+#include <malloc.h>
 #include <xfuncs.h>
+#include <asm/addrspace.h>
 #include <asm/cpu-info.h>
+#include <asm/io.h>
+#include <asm/types.h>
 
 #define dma_alloc dma_alloc
 static inline void *dma_alloc(size_t size)
@@ -18,6 +22,31 @@ static inline void *dma_alloc(size_t size)
 	return xmemalign(max_linesz, ALIGN(size, max_linesz));
 }
 
-#include "asm/dma-mapping.h"
+#define dma_alloc_coherent dma_alloc_coherent
+static inline void *dma_alloc_coherent(size_t size, dma_addr_t *dma_handle)
+{
+	void *ret;
+
+	ret = xmemalign(PAGE_SIZE, size);
+
+	memset(ret, 0, size);
+
+	if (dma_handle)
+		*dma_handle = CPHYSADDR(ret);
+
+	dma_flush_range((unsigned long)ret, (unsigned long)(ret + size));
+
+	return (void *)CKSEG1ADDR(ret);
+}
+
+#define dma_free_coherent dma_free_coherent
+static inline void dma_free_coherent(void *vaddr, dma_addr_t dma_handle,
+				     size_t size)
+{
+	if (IS_ENABLED(CONFIG_MMU) && vaddr)
+		free((void *)CKSEG0ADDR(vaddr));
+	else
+		free(vaddr);
+}
 
 #endif /* __ASM_DMA_H */
-- 
2.30.2