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authorFelipe Balbi <balbi@ti.com>2012-09-12 14:57:56 +0400
committerWolfram Sang <w.sang@pengutronix.de>2012-09-12 17:01:52 +0400
commitbaf3d7b7210c705bf8ca7afb03cd7f0b61d27058 (patch)
tree066fb658ac9551785dffb5929e1ae19d4f77b57b /drivers/i2c/busses/i2c-omap.c
parentd9ebd04d3476634c29ce0feffbc982e1cb25ed80 (diff)
downloadlinux-baf3d7b7210c705bf8ca7afb03cd7f0b61d27058.tar.xz
i2c: omap: simplify num_bytes handling
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>
Diffstat (limited to 'drivers/i2c/busses/i2c-omap.c')
-rw-r--r--drivers/i2c/busses/i2c-omap.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 2d9b03c94614..236cb38bb859 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -812,8 +812,7 @@ 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;
@@ -855,8 +854,7 @@ complete:
OMAP_I2C_BUFSTAT_REG)
& 0x3F;
}
- while (num_bytes) {
- num_bytes--;
+ while (num_bytes--) {
w = 0;
if (dev->buf_len) {
w = *dev->buf++;