dmaengine: imx-dma: remove 'in_use' field of 'internal' structure.
It makes no sense keeping an 'in_use' flag when the multiple descriptor mechanism already prevents a new DMA transfer to be issued when another one is in course. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
This commit is contained in:
Родитель
833bc03bf1
Коммит
e4756b5e06
|
@ -131,8 +131,6 @@ enum imxdma_prep_type {
|
|||
struct imxdma_channel_internal {
|
||||
unsigned int resbytes;
|
||||
|
||||
int in_use;
|
||||
|
||||
struct timer_list watchdog;
|
||||
|
||||
int hw_chaining;
|
||||
|
@ -266,9 +264,6 @@ static void imxdma_enable_hw(struct imxdma_desc *d)
|
|||
|
||||
pr_debug("imxdma%d: imx_dma_enable\n", channel);
|
||||
|
||||
if (imxdmac->internal.in_use)
|
||||
return;
|
||||
|
||||
local_irq_save(flags);
|
||||
|
||||
imx_dmav1_writel(1 << channel, DMA_DISR);
|
||||
|
@ -287,7 +282,6 @@ static void imxdma_enable_hw(struct imxdma_desc *d)
|
|||
DMA_CCR(channel));
|
||||
}
|
||||
}
|
||||
imxdmac->internal.in_use = 1;
|
||||
|
||||
local_irq_restore(flags);
|
||||
}
|
||||
|
@ -307,7 +301,6 @@ static void imxdma_disable_hw(struct imxdma_channel *imxdmac)
|
|||
imx_dmav1_writel(imx_dmav1_readl(DMA_CCR(channel)) & ~CCR_CEN,
|
||||
DMA_CCR(channel));
|
||||
imx_dmav1_writel(1 << channel, DMA_DISR);
|
||||
imxdmac->internal.in_use = 0;
|
||||
local_irq_restore(flags);
|
||||
}
|
||||
|
||||
|
@ -317,7 +310,6 @@ static void imxdma_watchdog(unsigned long data)
|
|||
int channel = imxdmac->channel;
|
||||
|
||||
imx_dmav1_writel(0, DMA_CCR(channel));
|
||||
imxdmac->internal.in_use = 0;
|
||||
|
||||
/* Tasklet watchdog error handler */
|
||||
tasklet_schedule(&imxdmac->dma_tasklet);
|
||||
|
@ -436,7 +428,6 @@ static void dma_irq_handle_channel(struct imxdma_channel *imxdmac)
|
|||
|
||||
out:
|
||||
imx_dmav1_writel(0, DMA_CCR(chno));
|
||||
imxdma->in_use = 0;
|
||||
/* Tasklet irq */
|
||||
tasklet_schedule(&imxdmac->dma_tasklet);
|
||||
}
|
||||
|
|
Загрузка…
Ссылка в новой задаче