DMA: shdma: fix CHCLR register address calculation
struct sh_dmae_device::chan_reg is a pointer to u32, therefore when adding
offsets to it care should be taken to add offsets in sizeof(u32) units, not
in bytes. This patch corrects such a bug. While at it we also remove the
redundant parameter of the affected function.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
diff --git a/drivers/dma/sh/shdma.c b/drivers/dma/sh/shdma.c
index b67f45f..fca7a0c 100644
--- a/drivers/dma/sh/shdma.c
+++ b/drivers/dma/sh/shdma.c
@@ -49,12 +49,12 @@
static DEFINE_SPINLOCK(sh_dmae_lock);
static LIST_HEAD(sh_dmae_devices);
-static void chclr_write(struct sh_dmae_chan *sh_dc, u32 data)
+static void channel_clear(struct sh_dmae_chan *sh_dc)
{
struct sh_dmae_device *shdev = to_sh_dev(sh_dc);
- __raw_writel(data, shdev->chan_reg +
- shdev->pdata->channel[sh_dc->shdma_chan.id].chclr_offset);
+ __raw_writel(0, shdev->chan_reg +
+ shdev->pdata->channel[sh_dc->shdma_chan.id].chclr_offset / sizeof(u32));
}
static void sh_dmae_writel(struct sh_dmae_chan *sh_dc, u32 data, u32 reg)
@@ -133,7 +133,7 @@
for (i = 0; i < shdev->pdata->channel_num; i++) {
struct sh_dmae_chan *sh_chan = shdev->chan[i];
if (sh_chan)
- chclr_write(sh_chan, 0);
+ channel_clear(sh_chan);
}
}