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i2c: omap: simplify num_bytes handling

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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@ti.com>
Reviewed-by : Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
This commit is contained in:
Felipe Balbi
2012-09-12 16:27:56 +05:30
committed by Wolfram Sang
parent d9ebd04d34
commit baf3d7b721
1 changed files with 2 additions and 4 deletions
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6
drivers/i2c/busses/i2c-omap.c
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@@ -812,8 +812,7 @@ complete:
OMAP_I2C_BUFSTAT_REG) OMAP_I2C_BUFSTAT_REG)
>> 8) & 0x3F; >> 8) & 0x3F;
} }
while (num_bytes) { while (num_bytes--) {
num_bytes--;
w = omap_i2c_read_reg(dev, OMAP_I2C_DATA_REG); w = omap_i2c_read_reg(dev, OMAP_I2C_DATA_REG);
if (dev->buf_len) { if (dev->buf_len) {
*dev->buf++ = w; *dev->buf++ = w;
@@ -855,8 +854,7 @@ complete:
OMAP_I2C_BUFSTAT_REG) OMAP_I2C_BUFSTAT_REG)
& 0x3F; & 0x3F;
} }
while (num_bytes) { while (num_bytes--) {
num_bytes--;
w = 0; w = 0;
if (dev->buf_len) { if (dev->buf_len) {
w = *dev->buf++; w = *dev->buf++;