From d088d20380b04e4dcc5f3531387c6df13da86e8b Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Thu, 19 Nov 2015 16:56:45 +0100 Subject: i2c: rcar: refactor setup of a msg commit b9d0684c79c4b9d30ce0d47d3270493dd0e76e59 upstream. We want to reuse this function later. Signed-off-by: Wolfram Sang Signed-off-by: Wolfram Sang Signed-off-by: Fabrizio Castro Reviewed-by: Chris Paterson Signed-off-by: Greg Kroah-Hartman --- drivers/i2c/busses/i2c-rcar.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c index 46b6a5fd5c1b..7a4d8d234554 100644 --- a/drivers/i2c/busses/i2c-rcar.c +++ b/drivers/i2c/busses/i2c-rcar.c @@ -106,7 +106,8 @@ enum rcar_i2c_type { struct rcar_i2c_priv { void __iomem *io; struct i2c_adapter adap; - struct i2c_msg *msg; + 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); @@ -499,11 +505,8 @@ 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->msg = &msgs[i]; + priv->msgs_left = num - i; rcar_i2c_prepare_msg(priv); -- cgit v1.2.3