Commit 99532fd2 authored by Michael McTernan's avatar Michael McTernan Committed by Bryan Wu
Browse files

Blackfin arch: add const to some function prototype and struct dma_channel 



Signed-off-by: default avatarMichael McTernan <mmcternan@airvana.com>
Signed-off-by: default avatarSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: default avatarBryan Wu <cooloney@kernel.org>
parent d642a8ad

arch/blackfin/include/asm/dma.h

+2 −2
Original line number Diff line number Diff line
@@ -135,7 +135,7 @@ typedef irqreturn_t(*dma_interrupt_t) (int irq, void *dev_id); 


struct dma_channel {

	struct mutex dmalock;

	char *device_id;

	const char *device_id;

	enum dma_chan_status chan_status;

	struct dma_register *regs;

	struct dmasg *sg;		/* large mode descriptor */
@@ -191,7 +191,7 @@ void free_dma(unsigned int channel); 
int dma_channel_active(unsigned int channel); /* check if a channel is in use */

void disable_dma(unsigned int channel);

void enable_dma(unsigned int channel);

int request_dma(unsigned int channel, char *device_id);

int request_dma(unsigned int channel, const char *device_id);

int set_dma_callback(unsigned int channel, dma_interrupt_t callback,

		     void *data);

void dma_disable_irq(unsigned int channel);

arch/blackfin/kernel/bfin_dma_5xx.c

+1 −1
Original line number Diff line number Diff line
@@ -116,7 +116,7 @@ late_initcall(proc_dma_init); 
/*------------------------------------------------------------------------------

 *	Request the specific DMA channel from the system.

 *-----------------------------------------------------------------------------*/

int request_dma(unsigned int channel, char *device_id)

int request_dma(unsigned int channel, const char *device_id)

{

	pr_debug("request_dma() : BEGIN \n");