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Commit 108ec67a authored by Yan He's avatar Yan He
Browse files

msm: sps: add stubs for BAM DMA APIs 



BAM DMA may not exist on some chipsets and the driver may not be
compiled. Thus, add the stubs for BAM DMA APIs.

Change-Id: I01cb62fe432dd9fff5b6fcf9a3f141f17ca25658
Signed-off-by: default avatarYan He <yanhe@codeaurora.org>
parent f2291a76

include/linux/msm-sps.h

+21 −0
Original line number Diff line number Diff line
@@ -1169,6 +1169,7 @@ int sps_set_config(struct sps_pipe *h, struct sps_connect *config); 
int sps_set_owner(struct sps_pipe *h, enum sps_owner owner,

		  struct sps_satellite *connect);



#ifdef CONFIG_SPS_SUPPORT_BAMDMA

/**

 * Allocate a BAM DMA channel

 *
@@ -1216,7 +1217,27 @@ unsigned long sps_dma_get_bam_handle(void); 
 *

 */

void sps_dma_free_bam_handle(unsigned long h);

#else

static inline int sps_alloc_dma_chan(const struct sps_alloc_dma_chan *alloc,

		       struct sps_dma_chan *chan)

{

	return -EPERM;

}



static inline int sps_free_dma_chan(struct sps_dma_chan *chan)

{

	return -EPERM;

}



static inline unsigned long sps_dma_get_bam_handle(void)

{

	return 0;

}



static inline void sps_dma_free_bam_handle(unsigned long h)

{

}

#endif



/**

 * Get number of free transfer entries for an SPS connection end point