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i2c: uniphier(-f): remove all dev_dbg()
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I have fixed various bugs, and these drivers are (I hope) pretty
stable now. Remove all dev_dbg() for code clean-up.

If I end up with debugging the drivers again, I will locally revert
this commit. I no longer need the debug code in upstream.

Signed-off-by: Masahiro Yamada <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>
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@masahir0y
masahir0y authored and Wolfram Sang committed Sep 5, 2019
1 parent 22ac74a commit 9ee7e72
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Showing 2 changed files with 4 additions and 36 deletions.
22 changes: 1 addition & 21 deletions drivers/i2c/busses/i2c-uniphier-f.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -108,7 +108,6 @@ static void uniphier_fi2c_fill_txfifo(struct uniphier_fi2c_priv *priv,
if (fifo_space-- <= 0)
break;

dev_dbg(&priv->adap.dev, "write data: %02x\n", *priv->buf);
writel(*priv->buf++, priv->membase + UNIPHIER_FI2C_DTTX);
priv->len--;
}
Expand All @@ -124,7 +123,6 @@ static void uniphier_fi2c_drain_rxfifo(struct uniphier_fi2c_priv *priv)
break;

*priv->buf++ = readl(priv->membase + UNIPHIER_FI2C_DTRX);
dev_dbg(&priv->adap.dev, "read data: %02x\n", priv->buf[-1]);
priv->len--;
}
}
Expand All @@ -142,8 +140,6 @@ static void uniphier_fi2c_clear_irqs(struct uniphier_fi2c_priv *priv,

static void uniphier_fi2c_stop(struct uniphier_fi2c_priv *priv)
{
dev_dbg(&priv->adap.dev, "stop condition\n");

priv->enabled_irqs |= UNIPHIER_FI2C_INT_STOP;
uniphier_fi2c_set_irqs(priv);
writel(UNIPHIER_FI2C_CR_MST | UNIPHIER_FI2C_CR_STO,
Expand All @@ -160,21 +156,15 @@ static irqreturn_t uniphier_fi2c_interrupt(int irq, void *dev_id)
irq_status = readl(priv->membase + UNIPHIER_FI2C_INT);
irq_status &= priv->enabled_irqs;

dev_dbg(&priv->adap.dev,
"interrupt: enabled_irqs=%04x, irq_status=%04x\n",
priv->enabled_irqs, irq_status);

if (irq_status & UNIPHIER_FI2C_INT_STOP)
goto complete;

if (unlikely(irq_status & UNIPHIER_FI2C_INT_AL)) {
dev_dbg(&priv->adap.dev, "arbitration lost\n");
priv->error = -EAGAIN;
goto complete;
}

if (unlikely(irq_status & UNIPHIER_FI2C_INT_NA)) {
dev_dbg(&priv->adap.dev, "could not get ACK\n");
priv->error = -ENXIO;
if (priv->flags & UNIPHIER_FI2C_RD) {
/*
Expand Down Expand Up @@ -215,18 +205,14 @@ static irqreturn_t uniphier_fi2c_interrupt(int irq, void *dev_id)
if (unlikely(priv->flags & UNIPHIER_FI2C_MANUAL_NACK)) {
if (priv->len <= UNIPHIER_FI2C_FIFO_SIZE &&
!(priv->flags & UNIPHIER_FI2C_BYTE_WISE)) {
dev_dbg(&priv->adap.dev,
"enable read byte count IRQ\n");
priv->enabled_irqs |= UNIPHIER_FI2C_INT_RB;
uniphier_fi2c_set_irqs(priv);
priv->flags |= UNIPHIER_FI2C_BYTE_WISE;
}
if (priv->len <= 1) {
dev_dbg(&priv->adap.dev, "set NACK\n");
if (priv->len <= 1)
writel(UNIPHIER_FI2C_CR_MST |
UNIPHIER_FI2C_CR_NACK,
priv->membase + UNIPHIER_FI2C_CR);
}
}

goto handled;
Expand Down Expand Up @@ -334,10 +320,6 @@ static int uniphier_fi2c_master_xfer_one(struct i2c_adapter *adap,
bool is_read = msg->flags & I2C_M_RD;
unsigned long time_left, flags;

dev_dbg(&adap->dev, "%s: addr=0x%02x, len=%d, repeat=%d, stop=%d\n",
is_read ? "receive" : "transmit", msg->addr, msg->len,
repeat, stop);

priv->len = msg->len;
priv->buf = msg->buf;
priv->enabled_irqs = UNIPHIER_FI2C_INT_FAULTS;
Expand All @@ -359,7 +341,6 @@ static int uniphier_fi2c_master_xfer_one(struct i2c_adapter *adap,
else
uniphier_fi2c_tx_init(priv, msg->addr, repeat);

dev_dbg(&adap->dev, "start condition\n");
/*
* For a repeated START condition, writing a slave address to the FIFO
* kicks the controller. So, the UNIPHIER_FI2C_CR register should be
Expand All @@ -383,7 +364,6 @@ static int uniphier_fi2c_master_xfer_one(struct i2c_adapter *adap,
uniphier_fi2c_recover(priv);
return -ETIMEDOUT;
}
dev_dbg(&adap->dev, "complete\n");

if (unlikely(priv->flags & UNIPHIER_FI2C_DEFER_STOP_COMP)) {
u32 status;
Expand Down
18 changes: 3 additions & 15 deletions drivers/i2c/busses/i2c-uniphier.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -71,7 +71,6 @@ static int uniphier_i2c_xfer_byte(struct i2c_adapter *adap, u32 txdata,
reinit_completion(&priv->comp);

txdata |= UNIPHIER_I2C_DTRM_IRQEN;
dev_dbg(&adap->dev, "write data: 0x%04x\n", txdata);
writel(txdata, priv->membase + UNIPHIER_I2C_DTRM);

time_left = wait_for_completion_timeout(&priv->comp, adap->timeout);
Expand All @@ -81,8 +80,6 @@ static int uniphier_i2c_xfer_byte(struct i2c_adapter *adap, u32 txdata,
}

rxdata = readl(priv->membase + UNIPHIER_I2C_DREC);
dev_dbg(&adap->dev, "read data: 0x%04x\n", rxdata);

if (rxdatap)
*rxdatap = rxdata;

Expand All @@ -98,14 +95,11 @@ static int uniphier_i2c_send_byte(struct i2c_adapter *adap, u32 txdata)
if (ret)
return ret;

if (unlikely(rxdata & UNIPHIER_I2C_DREC_LAB)) {
dev_dbg(&adap->dev, "arbitration lost\n");
if (unlikely(rxdata & UNIPHIER_I2C_DREC_LAB))
return -EAGAIN;
}
if (unlikely(rxdata & UNIPHIER_I2C_DREC_LRB)) {
dev_dbg(&adap->dev, "could not get ACK\n");

if (unlikely(rxdata & UNIPHIER_I2C_DREC_LRB))
return -ENXIO;
}

return 0;
}
Expand All @@ -115,7 +109,6 @@ static int uniphier_i2c_tx(struct i2c_adapter *adap, u16 addr, u16 len,
{
int ret;

dev_dbg(&adap->dev, "start condition\n");
ret = uniphier_i2c_send_byte(adap, addr << 1 |
UNIPHIER_I2C_DTRM_STA |
UNIPHIER_I2C_DTRM_NACK);
Expand All @@ -137,7 +130,6 @@ static int uniphier_i2c_rx(struct i2c_adapter *adap, u16 addr, u16 len,
{
int ret;

dev_dbg(&adap->dev, "start condition\n");
ret = uniphier_i2c_send_byte(adap, addr << 1 |
UNIPHIER_I2C_DTRM_STA |
UNIPHIER_I2C_DTRM_NACK |
Expand All @@ -161,7 +153,6 @@ static int uniphier_i2c_rx(struct i2c_adapter *adap, u16 addr, u16 len,

static int uniphier_i2c_stop(struct i2c_adapter *adap)
{
dev_dbg(&adap->dev, "stop condition\n");
return uniphier_i2c_send_byte(adap, UNIPHIER_I2C_DTRM_STO |
UNIPHIER_I2C_DTRM_NACK);
}
Expand All @@ -173,9 +164,6 @@ static int uniphier_i2c_master_xfer_one(struct i2c_adapter *adap,
bool recovery = false;
int ret;

dev_dbg(&adap->dev, "%s: addr=0x%02x, len=%d, stop=%d\n",
is_read ? "receive" : "transmit", msg->addr, msg->len, stop);

if (is_read)
ret = uniphier_i2c_rx(adap, msg->addr, msg->len, msg->buf);
else
Expand Down

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