Re: [PATCH v2 18/20] extcon: intel-cht-wc: Refactor cht_wc_extcon_get_charger()

Hans de Goede
2021-11-28T14:19:51Z

Hi,

On 11/19/21 16:44, Chanwoo Choi wrote:
> Hi,
>
> On Thu, Nov 18, 2021 at 7:31 AM Hans de Goede <hdegoede@redhat.com> wrote:
>>
>> Hi,
>>
>> On 11/17/21 08:15, Chanwoo Choi wrote:
>>> Hello,
>>>
>>> I think that you need to squash it with patch21
>>> I'm not sure that this patch is either atomic or not because
>>> you remove the 'return EXTCON_CHG_USB_SDP/EXTCON_CHG_USB_SDP'
>>> without explaining why it is no problem. Just mention that
>>> pass the role to next 'switch' cases. But, before this change,
>>> there were any reason to return the type of charger cable
>>> before switch statement.
>>
>> The setting of usbsrc to "CHT_WC_USBSRC_TYPE_SDP << CHT_WC_USBSRC_TYPE_SHIFT"
>> will make the following switch-case return EXTCON_CHG_USB_SDP
>> just as before, so there is no functional change.
>>
>>> According to your patch description, you don't need
>>> to make the separate patch of it. Please squash it with patch21.
>>
>> Having this refactoring in a separate patch makes it easier
>> to see what is going on in patch 21. So I'm going to keep this
>> as a separate patch for v3 of this series.
>
> If you want to keep this patch, please remove the following description.
> Instead, just mention to focus on refactor it without behavior changes.
>
> 'This is a preparation patch for adding support for registering
> a power_supply class device.'

Ok, done for v3 of the patch-series.

Regards,

Hans

>>> On 21. 11. 15. 오전 2:03, Hans de Goede wrote:
>>>> Refactor cht_wc_extcon_get_charger() to have all the returns are in
>>>> the "switch (usbsrc)" cases.
>>>>
>>>> This is a preparation patch for adding support for registering
>>>> a power_supply class device.
>>>>
>>>> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
>>>> ---
>>>> drivers/extcon/extcon-intel-cht-wc.c | 15 ++++++++-------
>>>> 1 file changed, 8 insertions(+), 7 deletions(-)
>>>>
>>>> diff --git a/drivers/extcon/extcon-intel-cht-wc.c b/drivers/extcon/extcon-intel-cht-wc.c
>>>> index 119b83793123..f2b93a99a625 100644
>>>> --- a/drivers/extcon/extcon-intel-cht-wc.c
>>>> +++ b/drivers/extcon/extcon-intel-cht-wc.c
>>>> @@ -153,14 +153,15 @@ static int cht_wc_extcon_get_charger(struct cht_wc_extcon_data *ext,
>>>> } while (time_before(jiffies, timeout));
>>>> if (status != CHT_WC_USBSRC_STS_SUCCESS) {
>>>> - if (ignore_errors)
>>>> - return EXTCON_CHG_USB_SDP; /* Save fallback */
>>>> + if (!ignore_errors) {
>>>> + if (status == CHT_WC_USBSRC_STS_FAIL)
>>>> + dev_warn(ext->dev, "Could not detect charger type\n");
>>>> + else
>>>> + dev_warn(ext->dev, "Timeout detecting charger type\n");
>>>> + }
>>>> - if (status == CHT_WC_USBSRC_STS_FAIL)
>>>> - dev_warn(ext->dev, "Could not detect charger type\n");
>>>> - else
>>>> - dev_warn(ext->dev, "Timeout detecting charger type\n");
>>>> - return EXTCON_CHG_USB_SDP; /* Save fallback */
>>>> + /* Save fallback */
>>>> + usbsrc = CHT_WC_USBSRC_TYPE_SDP << CHT_WC_USBSRC_TYPE_SHIFT;
>>>> }
>>>> usbsrc = (usbsrc & CHT_WC_USBSRC_TYPE_MASK) >> CHT_WC_USBSRC_TYPE_SHIFT;
>>>>
>>>
>>>
>>
>
>