linux-kernel - Re: [PATCH] staging: typec: rt1711h typec chip driver

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Message-ID: <CAFaeLdS5zLz+E0M32J47QBfxR_0EkM7erEJCdHnQ__G4R7XYCA@mail.gmail.com>
Date:   Sat, 17 Mar 2018 01:47:01 +0800
From:   李書帆 <leechu729@...il.com>
To:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Cc:     Greg KH <greg@...ah.com>, Guenter Roeck <linux@...ck-us.net>,
        shufan_lee(李書帆) <shufan_lee@...htek.com>,
        cy_huang(黃啟原) <cy_huang@...htek.com>,
        Jun Li <jun.li@....com>, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org
Subject: Re: [PATCH] staging: typec: rt1711h typec chip driver

Hi Heikki,

2018-03-16 23:05 GMT+08:00 Heikki Krogerus <heikki.krogerus@...ux.intel.com>:
> Hi ShuFan,
>
> On Fri, Mar 16, 2018 at 05:12:49PM +0800, ShuFan Lee wrote:
>> +static int rt1711h_init_gpio(struct rt1711h_chip *chip)
>> +{
>> +     int ret;
>> +     struct device_node *np = chip->dev->of_node;
>> +
>> +     ret = of_get_named_gpio(np, "rt,intr_gpio", 0);
>> +     if (ret < 0) {
>> +             dev_err(chip->dev, "%s get int gpio fail(%d)\n", __func__, ret);
>> +             return ret;
>> +     }
>> +     chip->irq_gpio = ret;
>> +
>> +     ret = devm_gpio_request_one(chip->dev, chip->irq_gpio, GPIOF_IN,
>> +                                 dev_name(chip->dev));
>> +     if (ret < 0) {
>> +             dev_err(chip->dev, "%s request gpio fail(%d)\n", __func__, ret);
>> +             return ret;
>> +     }
>> +
>> +     chip->irq = gpio_to_irq(chip->irq_gpio);
>> +     if (chip->irq <= 0) {
>> +             dev_err(chip->dev, "%s gpio2irq fail(%d)\n", __func__,
>> +                     chip->irq);
>> +             return -EINVAL;
>> +     }
>> +     return 0;
>
> "rt,intr_gpio" should probable be "rt,intr-gpio". Then this function
> can be prepared for all types of platforms:
>
> static int rt1711h_init_gpio(struct rt1711h_chip *chip)
> {
>         struct gpio_desc *gpio;
>
>         gpio = devm_gpiod_get(chip->dev, "rt,intr", GFP_KERNEL);
>         if (IS_ERR(gpio))
>                 return PTR_ERR(gpio);
>
>         chip->irq = gpiod_to_irq(gpio);
>         if (chip->irq < 0)
>                 return chip->irq;
>
>         return 0;
> }
>
>
> Thanks,
>
> --
> heikki

  Thank you, I've changed it in PATCH v2.

  May I add you to Suggested-by list?

-- 
Best Regards,
書帆