Hi Grygorii,
Thanks for the review.
On Mon, Nov 11, 2013 at 8:48 PM, Grygorii Strashko
<grygorii.strashko@xxxxxx> wrote:
> On 11/08/2013 12:11 PM, Prabhakar Lad wrote:
[Snip]
>> @@ -134,6 +137,40 @@ davinci_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
>> writel((1 << offset), value ? &g->set_data : &g->clr_data);
>> }
>>
>> +static struct davinci_gpio_platform_data *
>> +davinci_gpio_get_pdata(struct platform_device *pdev)
>
> Minor: usually such functions have "_of" in their names:
> davinci_gpio_of_get_pdata()
>
Ahh but actual this function is intended to get pdata in both the
cases DT and NON-DT, so kept it generic :)
>> +{
>> + struct device_node *dn = pdev->dev.of_node;
>> + struct davinci_gpio_platform_data *pdata;
>> + int ret;
>> + u32 val;
>> +
>> + if (!IS_ENABLED(CONFIG_OF) || !pdev->dev.of_node)
>> + return pdev->dev.platform_data;
>> +
>> + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
>> + if (!pdata)
>> + return NULL;
>> +
>> + ret = of_property_read_u32(dn, "ti,ngpio", &val);
>> + if (ret)
>> + goto of_err;
>> +
>> + pdata->ngpio = val;
>> +
>> + ret = of_property_read_u32(dn, "ti,davinci-gpio-unbanked", &val);
>> + if (ret)
>> + goto of_err;
>> +
>> + pdata->gpio_unbanked = val;
>> +
>> + return pdata;
>> +
>> +of_err:
>> + dev_err(&pdev->dev, "Populating pdata from DT failed: err %d\n", ret);
>> + return NULL;
>> +}
>> +
>> static int davinci_gpio_probe(struct platform_device *pdev)
>> {
>> int i, base;
>> @@ -144,12 +181,14 @@ static int davinci_gpio_probe(struct platform_device *pdev)
>> struct device *dev = &pdev->dev;
>> struct resource *res;
>>
>> - pdata = dev->platform_data;
>> + pdata = davinci_gpio_get_pdata(pdev);
>> if (!pdata) {
>> dev_err(dev, "No platform data found\n");
>> return -EINVAL;
>> }
>>
>> + dev->platform_data = pdata;
>> +
>
> Pls, add following code to GPIO chip initialization:
>
> @@ -233,6 +245,9 @@ static int davinci_gpio_probe(struct platform_device *pdev)
> chips[i].chip.ngpio = ngpio - base;
> if (chips[i].chip.ngpio > 32)
> chips[i].chip.ngpio = 32;
> +#ifdef CONFIG_OF_GPIO
> + chips[i].chip.of_node = dev->of_node;
> +#endif
>
>
OK
Regards,
--Prabhakar Lad
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