hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

dmaengine: pl08x: drop the useless function 

Unneeded variable: "retval". Return "NULL" , so we have to make code clear.
better way, drop the function.

Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Link: https://lore.kernel.org/r/1649726180-13133-1-git-send-email-baihaowen@meizu.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Haowen Bai 2022-04-12 09:16:20 +08:00 committed by Vinod Koul
parent 23084545db
commit 3dbc47a962
1 changed files with 0 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/dma/amba-pl08x.c
View File

@ -1535,14 +1535,6 @@ static void pl08x_free_chan_resources(struct dma_chan *chan)
vchan_free_chan_resources(to_virt_chan(chan));
}
static struct dma_async_tx_descriptor *pl08x_prep_dma_interrupt(
struct dma_chan *chan, unsigned long flags)
{
struct dma_async_tx_descriptor *retval = NULL;
return retval;
}
/*
* Code accessing dma_async_is_complete() in a tight loop may give problems.
* If slaves are relying on interrupts to signal completion this function
@ -2760,7 +2752,6 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id)
pl08x->memcpy.dev = &adev->dev;
pl08x->memcpy.device_free_chan_resources = pl08x_free_chan_resources;
pl08x->memcpy.device_prep_dma_memcpy = pl08x_prep_dma_memcpy;
pl08x->memcpy.device_prep_dma_interrupt = pl08x_prep_dma_interrupt;
pl08x->memcpy.device_tx_status = pl08x_dma_tx_status;
pl08x->memcpy.device_issue_pending = pl08x_issue_pending;
pl08x->memcpy.device_config = pl08x_config;
@ -2787,8 +2778,6 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id)
pl08x->slave.dev = &adev->dev;
pl08x->slave.device_free_chan_resources =
pl08x_free_chan_resources;
pl08x->slave.device_prep_dma_interrupt =
pl08x_prep_dma_interrupt;
pl08x->slave.device_tx_status = pl08x_dma_tx_status;
pl08x->slave.device_issue_pending = pl08x_issue_pending;
pl08x->slave.device_prep_slave_sg = pl08x_prep_slave_sg;