From 04dd17822334871b23ea2862f7798fb0e0007777 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 08:53:19 +0000
Subject: [PATCH] change otg to host mode
---
kernel/arch/sparc/include/asm/dma-mapping.h | 17 ++---------------
1 files changed, 2 insertions(+), 15 deletions(-)
diff --git a/kernel/arch/sparc/include/asm/dma-mapping.h b/kernel/arch/sparc/include/asm/dma-mapping.h
index e175663..2f05134 100644
--- a/kernel/arch/sparc/include/asm/dma-mapping.h
+++ b/kernel/arch/sparc/include/asm/dma-mapping.h
@@ -2,25 +2,12 @@
#ifndef ___ASM_SPARC_DMA_MAPPING_H
#define ___ASM_SPARC_DMA_MAPPING_H
-#include <linux/scatterlist.h>
-#include <linux/mm.h>
-#include <linux/dma-debug.h>
-
extern const struct dma_map_ops *dma_ops;
-
-extern struct bus_type pci_bus_type;
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
-#ifdef CONFIG_SPARC_LEON
- if (sparc_cpu_model == sparc_leon)
- return &dma_noncoherent_ops;
-#endif
-#if defined(CONFIG_SPARC32) && defined(CONFIG_PCI)
- if (bus == &pci_bus_type)
- return &dma_noncoherent_ops;
-#endif
- return dma_ops;
+ /* sparc32 uses per-device dma_ops */
+ return IS_ENABLED(CONFIG_SPARC64) ? dma_ops : NULL;
}
#endif
--
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