i2c: rcar: janitorial cleanup after refactoring
Remove some obvious comments, remove some superfluous debug output (the
error code carries the same information), some white space fixing...
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 4c46d1b..27b84d7 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -80,9 +80,6 @@
#define RCAR_IRQ_ACK_SEND (~(MAT | MDE))
#define RCAR_IRQ_ACK_RECV (~(MAT | MDR))
-/*
- * flags
- */
#define ID_LAST_MSG (1 << 0)
#define ID_IOERROR (1 << 1)
#define ID_DONE (1 << 2)
@@ -105,7 +102,7 @@
int pos;
u32 icccr;
u32 flags;
- enum rcar_i2c_type devtype;
+ enum rcar_i2c_type devtype;
};
#define rcar_i2c_priv_to_dev(p) ((p)->adap.dev.parent)
@@ -116,9 +113,7 @@
#define LOOP_TIMEOUT 1024
-/*
- * basic functions
- */
+
static void rcar_i2c_write(struct rcar_i2c_priv *priv, int reg, u32 val)
{
writel(val, priv->io + reg);
@@ -147,9 +142,6 @@
rcar_i2c_write(priv, ICMAR, 0);
}
-/*
- * bus control functions
- */
static int rcar_i2c_bus_barrier(struct rcar_i2c_priv *priv)
{
int i;
@@ -164,9 +156,6 @@
return -EBUSY;
}
-/*
- * clock function
- */
static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv,
u32 bus_speed,
struct device *dev)
@@ -256,10 +245,6 @@
return 0;
}
-/*
- * status functions
- */
-
static int rcar_i2c_prepare_msg(struct rcar_i2c_priv *priv)
{
int read = !!rcar_i2c_is_recv(priv);
@@ -380,40 +365,24 @@
static irqreturn_t rcar_i2c_irq(int irq, void *ptr)
{
struct rcar_i2c_priv *priv = ptr;
- struct device *dev = rcar_i2c_priv_to_dev(priv);
u32 msr;
msr = rcar_i2c_read(priv, ICMSR);
- /*
- * Arbitration lost
- */
+ /* Arbitration lost */
if (msr & MAL) {
- /*
- * CAUTION
- *
- * When arbitration lost, device become _slave_ mode.
- */
- dev_dbg(dev, "Arbitration Lost\n");
rcar_i2c_flags_set(priv, (ID_DONE | ID_ARBLOST));
goto out;
}
- /*
- * Stop
- */
+ /* Stop */
if (msr & MST) {
- dev_dbg(dev, "Stop\n");
rcar_i2c_flags_set(priv, ID_DONE);
goto out;
}
- /*
- * Nack
- */
+ /* Nack */
if (msr & MNR) {
- dev_dbg(dev, "Nack\n");
-
/* go to stop phase */
rcar_i2c_write(priv, ICMCR, RCAR_BUS_PHASE_STOP);
rcar_i2c_write(priv, ICMIER, RCAR_IRQ_STOP);
@@ -421,9 +390,6 @@
goto out;
}
- /*
- * recv/send
- */
if (rcar_i2c_is_recv(priv))
rcar_i2c_flags_set(priv, rcar_i2c_irq_recv(priv, msr));
else
@@ -476,9 +442,6 @@
if (ret < 0)
break;
- /*
- * wait result
- */
timeout = wait_event_timeout(priv->wait,
rcar_i2c_flags_has(priv, ID_DONE),
5 * HZ);
@@ -487,9 +450,6 @@
break;
}
- /*
- * error handling
- */
if (rcar_i2c_flags_has(priv, ID_NACK)) {
ret = -ENXIO;
break;