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| author | Vikram Pandita <vikram.pandita@ti.com> | 2011-09-11 21:42:58 -0700 |
|---|---|---|
| committer | Todd Poynor <toddpoynor@google.com> | 2011-09-16 10:45:27 -0700 |
| commit | c8475c64f8d1c6589aced5e87f957ea9c6819b19 (patch) | |
| tree | 9316498db66e7eff7d243ea8a18f8e5040391ab3 /drivers/i2c | |
| parent | 590ff32a5128f43bde23288a218cdbcc6c461e08 (diff) | |
| download | kernel_samsung_espresso10-c8475c64f8d1c6589aced5e87f957ea9c6819b19.tar.gz kernel_samsung_espresso10-c8475c64f8d1c6589aced5e87f957ea9c6819b19.tar.bz2 kernel_samsung_espresso10-c8475c64f8d1c6589aced5e87f957ea9c6819b19.zip | |
i2c: omap: avoid reading interrupt enable register
dev->iestate variable has the correct info on the interrupts enabled
at any time. So avoid un-necessary I2C_IE_REG read.
Change-Id: I75e315ef51b3f30bb41680cda7f4921218458fc1
Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-omap.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index 0d6e0e7c802..974e9a9c09a 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -806,15 +806,13 @@ static irqreturn_t omap_i2c_isr(int this_irq, void *dev_id) { struct omap_i2c_dev *dev = dev_id; - u16 bits; u16 stat, w; int err, count = 0; if (dev->idle) return IRQ_NONE; - bits = omap_i2c_read_reg(dev, OMAP_I2C_IE_REG); - while ((stat = (omap_i2c_read_reg(dev, OMAP_I2C_STAT_REG))) & bits) { + while ((stat = (omap_i2c_read_reg(dev, OMAP_I2C_STAT_REG))) & dev->iestate) { dev_dbg(dev->dev, "IRQ (ISR = 0x%04x)\n", stat); if (count++ == 100) { dev_warn(dev->dev, "Too much work in one IRQ\n"); |