linux-kernel - Re: [PATCH v3] extcon: intel-cht-wc: Add Intel Cherry Trail Whiskey Cove PMIC extcon driver

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Date:   Fri, 24 Mar 2017 08:59:46 +0100
From:   Hans de Goede <hdegoede@...hat.com>
To:     Chanwoo Choi <cw00.choi@...sung.com>,
        MyungJoo Ham <myungjoo.ham@...sung.com>
Cc:     Takashi Iwai <tiwai@...e.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] extcon: intel-cht-wc: Add Intel Cherry Trail Whiskey
 Cove PMIC extcon driver

Hi,

On 24-03-17 05:38, Chanwoo Choi wrote:
> Hi,
>
> On 2017년 03월 24일 01:01, Hans de Goede wrote:
>> Add a driver for charger detection / control on the Intel Cherrytrail
>> Whiskey Cove PMIC.
>>
>> Signed-off-by: Hans de Goede <hdegoede@...hat.com>
>> ---
>> Changes in v2:
>> -Improve wait for charger detection loop, use jiffies to get an accurate timeout
>> -Sort registers by address, remove duplicate definition
>> -Return IRQ_NONE on interrupt handling errors
>> -Various small style cleanups
>> -Fix reporting no charger cable being present when detecting the same
>>  charger type 2 times in a row
>> -Reset to autonomous / hw-mode on probe-error and on remove
>> Changes in v3:
>> -Add intel prefix to Kconfig symbol and filename
>> -Clarified "Unhandled charger type" warning msg
>> -Dropped usb_id sysfs attribute
>> ---
>>  drivers/extcon/Kconfig               |   7 +
>>  drivers/extcon/Makefile              |   1 +
>>  drivers/extcon/extcon-intel-cht-wc.c | 352 +++++++++++++++++++++++++++++++++++
>>  3 files changed, 360 insertions(+)
>>  create mode 100644 drivers/extcon/extcon-intel-cht-wc.c
>>
>
> Applied it on extcon-next branch.

Thank you.

Regards,

Hans


>
> [snip]
>
>> +	usbsrc = (usbsrc & CHT_WC_USBSRC_TYPE_MASK) >> CHT_WC_USBSRC_TYPE_SHIFT;
>> +	switch (usbsrc) {
>> +	default:
>> +		dev_warn(ext->dev, "Unhandled charger type %d, defaulting to SDP\n",
>
> Nit:
> This line is over length 80. So, I changed it as following
>
> 		dev_warn(ext->dev,
> 			"Unhandled charger type %d, defaulting to SDP\n",
>
>> +			 ret);
>> +		/* Fall through, treat as SDP */
>> +	case CHT_WC_USBSRC_TYPE_SDP:
>> +	case CHT_WC_USBSRC_TYPE_FLOAT_DP_DN:
>> +	case CHT_WC_USBSRC_TYPE_OTHER:
>> +		return EXTCON_CHG_USB_SDP;
>> +	case CHT_WC_USBSRC_TYPE_CDP:
>> +		return EXTCON_CHG_USB_CDP;
>> +	case CHT_WC_USBSRC_TYPE_DCP:
>> +	case CHT_WC_USBSRC_TYPE_DCP_EXTPHY:
>> +	case CHT_WC_USBSRC_TYPE_MHL: /* MHL2+ delivers upto 2A, treat as DCP */
>> +		return EXTCON_CHG_USB_DCP;
>> +	case CHT_WC_USBSRC_TYPE_ACA:
>> +		return EXTCON_CHG_USB_ACA;
>> +	}
>> +}
>