Hello,
On Thu, Nov 20, 2014 at 12:03:08PM +0200, Grygorii Strashko wrote:
> @@ -664,6 +759,7 @@ static int davinci_i2c_probe(struct platform_device *pdev)
> if (!of_property_read_u32(pdev->dev.of_node, "clock-frequency",
> &prop))
> dev->pdata->bus_freq = prop / 1000;
> + dev->pdata->has_pfunc = true;
I don't understand this. Why does this ICPFUNC recovery work if the bus
is probed by oftree, but doesn't if not?
> } else if (!dev->pdata) {
> dev->pdata = &davinci_i2c_platform_data_default;
> }
> @@ -705,7 +801,9 @@ static int davinci_i2c_probe(struct platform_device *pdev)
> adap->timeout = DAVINCI_I2C_TIMEOUT;
> adap->dev.of_node = pdev->dev.of_node;
>
> - if (dev->pdata->scl_pin) {
> + if (dev->pdata->has_pfunc)
> + adap->bus_recovery_info = &davinci_i2c_scl_recovery_info;
> + else if (dev->pdata->scl_pin) {
> adap->bus_recovery_info = &davinci_i2c_gpio_recovery_info;
> adap->bus_recovery_info->scl_gpio = dev->pdata->scl_pin;
> adap->bus_recovery_info->sda_gpio = dev->pdata->sda_pin;
> diff --git a/include/linux/platform_data/i2c-davinci.h
> b/include/linux/platform_data/i2c-davinci.h
> index 2312d19..89fd347 100644
> --- a/include/linux/platform_data/i2c-davinci.h
> +++ b/include/linux/platform_data/i2c-davinci.h
> @@ -18,6 +18,7 @@ struct davinci_i2c_platform_data {
> unsigned int bus_delay; /* post-transaction delay (usec) */
> unsigned int sda_pin; /* GPIO pin ID to use for SDA */
> unsigned int scl_pin; /* GPIO pin ID to use for SCL */
> + bool has_pfunc; /*chip has a ICPFUNC register */
Space after /* please
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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