[PATCHv5 02/18] i2c: omap: simplify num_bytes handling
Shubhrajyoti D
shubhrajyoti at ti.com
Thu Jul 19 10:37:52 EDT 2012
From: Felipe Balbi <balbi at ti.com>
trivial patch, no functional changes
If the fifo is disabled or fifo_size is 0 the num_bytes
is set to 1. Else it is set to fifo_size or in case of a
draining interrupt the remaining bytes in the buff stat.
So the zero check is redundant and can be safely optimised.
Signed-off-by: Felipe Balbi <balbi at ti.com>
Reviewed-by : Santosh Shilimkar <santosh.shilimkar at ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti at ti.com>
---
drivers/i2c/busses/i2c-omap.c | 6 ++----
1 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 788c16c..520f3ea 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -809,8 +809,7 @@ complete:
OMAP_I2C_BUFSTAT_REG)
>> 8) & 0x3F;
}
- while (num_bytes) {
- num_bytes--;
+ while (num_bytes--) {
w = omap_i2c_read_reg(dev, OMAP_I2C_DATA_REG);
if (dev->buf_len) {
*dev->buf++ = w;
@@ -852,8 +851,7 @@ complete:
OMAP_I2C_BUFSTAT_REG)
& 0x3F;
}
- while (num_bytes) {
- num_bytes--;
+ while (num_bytes--) {
w = 0;
if (dev->buf_len) {
w = *dev->buf++;
--
1.7.5.4
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