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>

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++;