DMAENGINE: ste_dma40: No need reading, masking and setting a set register
Removes an unnecessary register read and a few lines of code.
Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 8aff865..538c35d 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -915,7 +915,6 @@
int i;
u32 regs[ARRAY_SIZE(il)];
- u32 tmp;
u32 idx;
u32 row;
long chan = -1;
@@ -942,9 +941,7 @@
idx = chan & (BITS_PER_LONG - 1);
/* ACK interrupt */
- tmp = readl(base->virtbase + il[row].clr);
- tmp |= 1 << idx;
- writel(tmp, base->virtbase + il[row].clr);
+ writel(1 << idx, base->virtbase + il[row].clr);
if (il[row].offset == D40_PHY_CHAN)
d40c = base->lookup_phy_chans[idx];