summaryrefslogtreecommitdiff
path: root/drivers/i2c/busses/i2c-uniphier-f.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/i2c/busses/i2c-uniphier-f.c')
-rw-r--r--drivers/i2c/busses/i2c-uniphier-f.c26
1 files changed, 2 insertions, 24 deletions
diff --git a/drivers/i2c/busses/i2c-uniphier-f.c b/drivers/i2c/busses/i2c-uniphier-f.c
index 7acca2599f04..4241aac79e7e 100644
--- a/drivers/i2c/busses/i2c-uniphier-f.c
+++ b/drivers/i2c/busses/i2c-uniphier-f.c
@@ -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--;
}
@@ -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--;
}
}
@@ -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,
@@ -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) {
/*
@@ -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;
@@ -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;
@@ -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
@@ -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;
@@ -538,7 +518,6 @@ static int uniphier_fi2c_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct uniphier_fi2c_priv *priv;
- struct resource *regs;
u32 bus_speed;
unsigned long clk_rate;
int irq, ret;
@@ -547,8 +526,7 @@ static int uniphier_fi2c_probe(struct platform_device *pdev)
if (!priv)
return -ENOMEM;
- regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- priv->membase = devm_ioremap_resource(dev, regs);
+ priv->membase = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(priv->membase))
return PTR_ERR(priv->membase);