diff options
Diffstat (limited to 'drivers/i2c/busses/i2c-xlp9xx.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-xlp9xx.c | 45 |
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), }, }; |
