i2c: busses: make use of i2c_8bit_addr_from_msg

Because it looks neater.

For diolan, this allows factoring out some code that is now common
between if and else.

For eg20t, pch_i2c_writebytes is always called with a write in
msgs->flags, and pch_i2c_readbytes with a read.

For imx, i2c_imx_dma_write and i2c_imx_write are always called with a
write in msgs->flags, and i2c_imx_read with a read.

For qup, qup_i2c_write_tx_fifo_v1 is always called with a write in
qup->msg->flags.

For stu300, also restructure debug output for resends, since that
code as a result is only handling debug output.

Reviewed-by: Guenter Roeck <linux@roeck-us.net> [diolan]
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> [efm32 and imx]
Acked-by: Linus Walleij <linus.walleij@linaro.org> [stu300]
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/i2c/busses/i2c-riic.c b/drivers/i2c/busses/i2c-riic.c
index 95c2f1ce3cad..5f1fca7880b1 100644
--- a/drivers/i2c/busses/i2c-riic.c
+++ b/drivers/i2c/busses/i2c-riic.c
@@ -167,15 +167,14 @@ static irqreturn_t riic_tdre_isr(int irq, void *data)
 		return IRQ_NONE;
 
 	if (riic->bytes_left == RIIC_INIT_MSG) {
-		val = !!(riic->msg->flags & I2C_M_RD);
-		if (val)
+		if (riic->msg->flags & I2C_M_RD)
 			/* On read, switch over to receive interrupt */
 			riic_clear_set_bit(riic, ICIER_TIE, ICIER_RIE, RIIC_ICIER);
 		else
 			/* On write, initialize length */
 			riic->bytes_left = riic->msg->len;
 
-		val |= (riic->msg->addr << 1);
+		val = i2c_8bit_addr_from_msg(riic->msg);
 	} else {
 		val = *riic->buf;
 		riic->buf++;