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path: root/drivers/i2c/busses/i2c-xlp9xx.c
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Diffstat (limited to 'drivers/i2c/busses/i2c-xlp9xx.c')
-rw-r--r--drivers/i2c/busses/i2c-xlp9xx.c45
1 files changed, 16 insertions, 29 deletions
diff --git a/drivers/i2c/busses/i2c-xlp9xx.c b/drivers/i2c/busses/i2c-xlp9xx.c
index 8a873975cf12..ddb1c3e8bc9d 100644
--- a/drivers/i2c/busses/i2c-xlp9xx.c
+++ b/drivers/i2c/busses/i2c-xlp9xx.c
@@ -71,8 +71,6 @@
#define XLP9XX_I2C_SLAVEADDR_ADDR_SHIFT 1
#define XLP9XX_I2C_IP_CLK_FREQ 133000000UL
-#define XLP9XX_I2C_DEFAULT_FREQ 100000
-#define XLP9XX_I2C_HIGH_FREQ 400000
#define XLP9XX_I2C_FIFO_SIZE 0x80U
#define XLP9XX_I2C_TIMEOUT_MS 1000
#define XLP9XX_I2C_BUSY_TIMEOUT 50
@@ -454,7 +452,7 @@ static u32 xlp9xx_i2c_functionality(struct i2c_adapter *adapter)
}
static const struct i2c_algorithm xlp9xx_i2c_algo = {
- .master_xfer = xlp9xx_i2c_xfer,
+ .xfer = xlp9xx_i2c_xfer,
.functionality = xlp9xx_i2c_functionality,
};
@@ -476,12 +474,12 @@ static int xlp9xx_i2c_get_frequency(struct platform_device *pdev,
err = device_property_read_u32(&pdev->dev, "clock-frequency", &freq);
if (err) {
- freq = XLP9XX_I2C_DEFAULT_FREQ;
+ freq = I2C_MAX_STANDARD_MODE_FREQ;
dev_dbg(&pdev->dev, "using default frequency %u\n", freq);
- } else if (freq == 0 || freq > XLP9XX_I2C_HIGH_FREQ) {
+ } else if (freq == 0 || freq > I2C_MAX_FAST_MODE_FREQ) {
dev_warn(&pdev->dev, "invalid frequency %u, using default\n",
freq);
- freq = XLP9XX_I2C_DEFAULT_FREQ;
+ freq = I2C_MAX_STANDARD_MODE_FREQ;
}
priv->clk_hz = freq;
@@ -491,12 +489,16 @@ static int xlp9xx_i2c_get_frequency(struct platform_device *pdev,
static int xlp9xx_i2c_smbus_setup(struct xlp9xx_i2c_dev *priv,
struct platform_device *pdev)
{
+ struct i2c_client *ara;
+
if (!priv->alert_data.irq)
return -EINVAL;
- priv->ara = i2c_setup_smbus_alert(&priv->adapter, &priv->alert_data);
- if (!priv->ara)
- return -ENODEV;
+ ara = i2c_new_smbus_alert_device(&priv->adapter, &priv->alert_data);
+ if (IS_ERR(ara))
+ return PTR_ERR(ara);
+
+ priv->ara = ara;
return 0;
}
@@ -504,23 +506,19 @@ static int xlp9xx_i2c_smbus_setup(struct xlp9xx_i2c_dev *priv,
static int xlp9xx_i2c_probe(struct platform_device *pdev)
{
struct xlp9xx_i2c_dev *priv;
- struct resource *res;
int err = 0;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- priv->base = devm_ioremap_resource(&pdev->dev, res);
+ priv->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(priv->base))
return PTR_ERR(priv->base);
priv->irq = platform_get_irq(pdev, 0);
- if (priv->irq <= 0) {
- dev_err(&pdev->dev, "invalid irq!\n");
+ if (priv->irq < 0)
return priv->irq;
- }
/* SMBAlert irq */
priv->alert_data.irq = platform_get_irq(pdev, 1);
if (priv->alert_data.irq <= 0)
@@ -531,10 +529,8 @@ static int xlp9xx_i2c_probe(struct platform_device *pdev)
err = devm_request_irq(&pdev->dev, priv->irq, xlp9xx_i2c_isr, 0,
pdev->name, priv);
- if (err) {
- dev_err(&pdev->dev, "IRQ request failed!\n");
- return err;
- }
+ if (err)
+ return dev_err_probe(&pdev->dev, err, "IRQ request failed!\n");
init_completion(&priv->msg_complete);
priv->adapter.dev.parent = &pdev->dev;
@@ -561,7 +557,7 @@ static int xlp9xx_i2c_probe(struct platform_device *pdev)
return 0;
}
-static int xlp9xx_i2c_remove(struct platform_device *pdev)
+static void xlp9xx_i2c_remove(struct platform_device *pdev)
{
struct xlp9xx_i2c_dev *priv;
@@ -570,16 +566,8 @@ static int xlp9xx_i2c_remove(struct platform_device *pdev)
synchronize_irq(priv->irq);
i2c_del_adapter(&priv->adapter);
xlp9xx_write_i2c_reg(priv, XLP9XX_I2C_CTRL, 0);
-
- return 0;
}
-static const struct of_device_id xlp9xx_i2c_of_match[] = {
- { .compatible = "netlogic,xlp980-i2c", },
- { /* sentinel */ },
-};
-MODULE_DEVICE_TABLE(of, xlp9xx_i2c_of_match);
-
#ifdef CONFIG_ACPI
static const struct acpi_device_id xlp9xx_i2c_acpi_ids[] = {
{"BRCM9007", 0},
@@ -594,7 +582,6 @@ static struct platform_driver xlp9xx_i2c_driver = {
.remove = xlp9xx_i2c_remove,
.driver = {
.name = "xlp9xx-i2c",
- .of_match_table = xlp9xx_i2c_of_match,
.acpi_match_table = ACPI_PTR(xlp9xx_i2c_acpi_ids),
},
};