Messages in this thread Patch in this message | | | From | Linus Walleij <> | Subject | [PATCH 03/14] DMAENGINE: ste_dma40: No need reading, masking and setting a set register | Date | Mon, 9 Aug 2010 14:07:54 +0200 |
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From: Jonas Aaberg <jonas.aberg@stericsson.com>
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> --- drivers/dma/ste_dma40.c | 5 +---- 1 files changed, 1 insertions(+), 4 deletions(-)
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 @@ static irqreturn_t d40_handle_interrupt(int irq, void *data) int i; u32 regs[ARRAY_SIZE(il)]; - u32 tmp; u32 idx; u32 row; long chan = -1; @@ -942,9 +941,7 @@ static irqreturn_t d40_handle_interrupt(int irq, void *data) 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]; -- 1.6.3.3
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