Commit 2967f9ca authored Nov 09, 2017 by Wolfram Sang Committed by Wolfram Sang Nov 27, 2017

i2c: sh_mobile: avoid unnecessary register read



There is no data when the first WAIT interrupt arrives. No need to read
something then.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

parent 91701ae8

drivers/i2c/busses/i2c-sh_mobile.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -433,8 +433,9 @@ static int sh_mobile_i2c_isr_rx(struct sh_mobile_i2c_data *pd)
		break;
		}
		data = i2c_op(pd, OP_RX_STOP_DATA, 0);
		} else
		} else if (real_pos >= 0) {
		data = i2c_op(pd, OP_RX, 0);
		}

		if (real_pos >= 0)
		pd->msg->buf[real_pos] = data;