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Commit b9d0684c authored by Wolfram Sang's avatar Wolfram Sang Committed by Wolfram Sang
Browse files

i2c: rcar: refactor setup of a msg 



We want to reuse this function later.

Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent ff2316b8

drivers/i2c/busses/i2c-rcar.c

+9 −6
Original line number Diff line number Diff line
@@ -107,6 +107,7 @@ struct rcar_i2c_priv { 
	void __iomem *io;

	struct i2c_adapter adap;

	struct i2c_msg *msg;

	int msgs_left;

	struct clk *clk;



	wait_queue_head_t wait;
@@ -255,6 +256,11 @@ static void rcar_i2c_prepare_msg(struct rcar_i2c_priv *priv) 
{

	int read = !!rcar_i2c_is_recv(priv);



	priv->pos = 0;

	priv->flags = 0;

	if (priv->msgs_left == 1)

		rcar_i2c_flags_set(priv, ID_LAST_MSG);



	rcar_i2c_write(priv, ICMAR, (priv->msg->addr << 1) | read);

	rcar_i2c_write(priv, ICMSR, 0);

	rcar_i2c_write(priv, ICMCR, RCAR_BUS_PHASE_START);
@@ -500,10 +506,7 @@ static int rcar_i2c_master_xfer(struct i2c_adapter *adap, 


		/* init each data */

		priv->msg = &msgs[i];

		priv->pos	= 0;

		priv->flags	= 0;

		if (i == num - 1)

			rcar_i2c_flags_set(priv, ID_LAST_MSG);

		priv->msgs_left = num - i;



		rcar_i2c_prepare_msg(priv);