2016-12-21 06:11:09

by Baolin Wang

[permalink] [raw]
Subject: [PATCH 1/3] extcon: Add documentation for EXTCON_CHG_USB_* and EXTCON_USB_*

Current there is both "EXTCON_USB" and "EXTCON_CHG_USB_SDP" which
both seem to suggest a standard downstream port. But there is no
documentation describing how these relate.

Thus add documentation to describe EXTCON_CHG_USB_SDP should always
appear together with EXTCON_USB, and EXTCON_CHG_USB_ACA would normally
appear with EXTCON_USB_HOST.

Signed-off-by: Baolin Wang <[email protected]>
---
include/linux/extcon.h | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index b871c0c..6498b05 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -46,7 +46,14 @@
#define EXTCON_USB 1
#define EXTCON_USB_HOST 2

-/* Charging external connector */
+/*
+ * Charging external connector
+ *
+ * When one SDP charger connector was reported, we should also report
+ * the USB connector, which means EXTCON_CHG_USB_SDP should always
+ * appear together with EXTCON_USB. The same as ACA charger connector,
+ * EXTCON_CHG_USB_ACA should always appear with EXTCON_USB_HOST.
+ */
#define EXTCON_CHG_USB_SDP 5 /* Standard Downstream Port */
#define EXTCON_CHG_USB_DCP 6 /* Dedicated Charging Port */
#define EXTCON_CHG_USB_CDP 7 /* Charging Downstream Port */
--
1.7.9.5


2016-12-21 06:11:18

by Baolin Wang

[permalink] [raw]
Subject: [PATCH 2/3] extcon: axp288: Set EXTCON_USB when EXTCON_CHG_USB_SDP was set

According to the documentation, we should set the EXTCON_USB when
one SDP charger connector was reported.

Signed-off-by: Baolin Wang <[email protected]>
---
drivers/extcon/extcon-axp288.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
index 42f41e8..4490726 100644
--- a/drivers/extcon/extcon-axp288.c
+++ b/drivers/extcon/extcon-axp288.c
@@ -102,6 +102,7 @@ enum axp288_extcon_irq {
};

static const unsigned int axp288_extcon_cables[] = {
+ EXTCON_USB,
EXTCON_CHG_USB_SDP,
EXTCON_CHG_USB_CDP,
EXTCON_CHG_USB_DCP,
@@ -225,8 +226,12 @@ static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info)
vbus_attach ? USB_EVENT_VBUS : USB_EVENT_NONE, NULL);
}

- if (notify_charger)
+ if (notify_charger) {
extcon_set_state_sync(info->edev, cable, vbus_attach);
+ if (cable == EXTCON_CHG_USB_SDP)
+ extcon_set_state_sync(info->edev, EXTCON_USB,
+ vbus_attach);
+ }

/* Clear the flags on disconnect event */
if (!vbus_attach)
--
1.7.9.5

2016-12-21 06:11:26

by Baolin Wang

[permalink] [raw]
Subject: [PATCH 3/3] phy: rockchip-inno-usb2: Set EXTCON_USB when EXTCON_CHG_USB_SDP was set

According to the documentation, we should set the EXTCON_USB when
one SDP charger connector was reported.

Signed-off-by: Baolin Wang <[email protected]>
---
drivers/phy/phy-rockchip-inno-usb2.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/phy/phy-rockchip-inno-usb2.c b/drivers/phy/phy-rockchip-inno-usb2.c
index 2f99ec9..71fbe0f 100644
--- a/drivers/phy/phy-rockchip-inno-usb2.c
+++ b/drivers/phy/phy-rockchip-inno-usb2.c
@@ -595,9 +595,14 @@ static void rockchip_usb2phy_otg_sm_work(struct work_struct *work)
if (rport->vbus_attached != vbus_attach) {
rport->vbus_attached = vbus_attach;

- if (notify_charger && rphy->edev)
+ if (notify_charger && rphy->edev) {
extcon_set_cable_state_(rphy->edev,
cable, vbus_attach);
+ if (cable == EXTCON_CHG_USB_SDP)
+ extcon_set_cable_state_(rphy->edev,
+ EXTCON_USB,
+ vbus_attach);
+ }
}
break;
case OTG_STATE_B_PERIPHERAL:
--
1.7.9.5

2016-12-21 07:20:42

by Chanwoo Choi

[permalink] [raw]
Subject: Re: [PATCH 1/3] extcon: Add documentation for EXTCON_CHG_USB_* and EXTCON_USB_*

Hi,

On 2016년 12월 21일 15:10, Baolin Wang wrote:
> Current there is both "EXTCON_USB" and "EXTCON_CHG_USB_SDP" which
> both seem to suggest a standard downstream port. But there is no
> documentation describing how these relate.
>
> Thus add documentation to describe EXTCON_CHG_USB_SDP should always
> appear together with EXTCON_USB, and EXTCON_CHG_USB_ACA would normally
> appear with EXTCON_USB_HOST.
>
> Signed-off-by: Baolin Wang <[email protected]>
> ---
> include/linux/extcon.h | 9 ++++++++-
> 1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/include/linux/extcon.h b/include/linux/extcon.h
> index b871c0c..6498b05 100644
> --- a/include/linux/extcon.h
> +++ b/include/linux/extcon.h
> @@ -46,7 +46,14 @@
> #define EXTCON_USB 1
> #define EXTCON_USB_HOST 2
>
> -/* Charging external connector */
> +/*
> + * Charging external connector
> + *
> + * When one SDP charger connector was reported, we should also report
> + * the USB connector, which means EXTCON_CHG_USB_SDP should always
> + * appear together with EXTCON_USB. The same as ACA charger connector,
> + * EXTCON_CHG_USB_ACA should always appear with EXTCON_USB_HOST.
> + */

Looks good to me.
But, you use the different word for ACA as following:
I think that 'would normally' is proper in descritpion.

- commit msg : EXTCON_CHG_USB_ACA would normally appear with EXTCON_USB_HOST.
- description: EXTCON_CHG_USB_ACA should always appear with EXTCON_USB_HOST.

> #define EXTCON_CHG_USB_SDP 5 /* Standard Downstream Port */
> #define EXTCON_CHG_USB_DCP 6 /* Dedicated Charging Port */
> #define EXTCON_CHG_USB_CDP 7 /* Charging Downstream Port */
>

--
Regards,
Chanwoo Choi

2016-12-21 07:22:40

by Chanwoo Choi

[permalink] [raw]
Subject: Re: [PATCH 2/3] extcon: axp288: Set EXTCON_USB when EXTCON_CHG_USB_SDP was set

Hi,

On 2016년 12월 21일 15:10, Baolin Wang wrote:
> According to the documentation, we should set the EXTCON_USB when
> one SDP charger connector was reported.
>
> Signed-off-by: Baolin Wang <[email protected]>
> ---
> drivers/extcon/extcon-axp288.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
> index 42f41e8..4490726 100644
> --- a/drivers/extcon/extcon-axp288.c
> +++ b/drivers/extcon/extcon-axp288.c
> @@ -102,6 +102,7 @@ enum axp288_extcon_irq {
> };
>
> static const unsigned int axp288_extcon_cables[] = {
> + EXTCON_USB,
> EXTCON_CHG_USB_SDP,
> EXTCON_CHG_USB_CDP,
> EXTCON_CHG_USB_DCP,
> @@ -225,8 +226,12 @@ static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info)
> vbus_attach ? USB_EVENT_VBUS : USB_EVENT_NONE, NULL);
> }
>
> - if (notify_charger)
> + if (notify_charger) {
> extcon_set_state_sync(info->edev, cable, vbus_attach);
> + if (cable == EXTCON_CHG_USB_SDP)
> + extcon_set_state_sync(info->edev, EXTCON_USB,
> + vbus_attach);
> + }
>
> /* Clear the flags on disconnect event */
> if (!vbus_attach)
>

The extcon-axp288.c driver has some patches on extcon-next[1] branch.
[1] https://git.kernel.org/cgit/linux/kernel/git/chanwoo/extcon.git/log/?h=extcon-next

I rework your patch on extcon-next branch as following:
If you ok, I'll merge it for v4.11.

commit 1a96f92bdfab86d0b634e56092f543cad348fd0b
Refs: extcon-next, extcon-next-for-4.10-15-g1a96f92bdfab
Author: Baolin Wang <[email protected]>
AuthorDate: Wed Dec 21 15:51:26 2016 +0900
Commit: Chanwoo Choi <[email protected]>
CommitDate: Wed Dec 21 15:52:00 2016 +0900

extcon: axp288: Set EXTCON_USB when EXTCON_CHG_USB_SDP was set

According to the documentation, we should set the EXTCON_USB when
one SDP charger connector was reported.

Signed-off-by: Baolin Wang <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
---
drivers/extcon/extcon-axp288.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
index 3e145e2a4860..f4fd03e58e37 100644
--- a/drivers/extcon/extcon-axp288.c
+++ b/drivers/extcon/extcon-axp288.c
@@ -96,6 +96,7 @@ enum axp288_extcon_irq {
EXTCON_CHG_USB_SDP,
EXTCON_CHG_USB_CDP,
EXTCON_CHG_USB_DCP,
+ EXTCON_USB,
EXTCON_NONE,
};

@@ -206,8 +207,15 @@ static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info)
: EXTCON_GPIO_MUX_SEL_PMIC);

extcon_set_state_sync(info->edev, info->previous_cable, false);
+ if (info->previous_cable == EXTCON_CHG_USB_SDP)
+ extcon_set_state_sync(info->edev, EXTCON_USB, false);
+
if (vbus_attach) {
extcon_set_state_sync(info->edev, cable, vbus_attach);
+ if (cable == EXTCON_CHG_USB_SDP)
+ extcon_set_state_sync(info->edev, EXTCON_USB,
+ vbus_attach);
+
info->previous_cable = cable;
}

--
Regards,
Chanwoo Choi

2016-12-21 07:29:42

by Chanwoo Choi

[permalink] [raw]
Subject: Re: [PATCH 3/3] phy: rockchip-inno-usb2: Set EXTCON_USB when EXTCON_CHG_USB_SDP was set

Hi,

On 2016년 12월 21일 15:10, Baolin Wang wrote:
> According to the documentation, we should set the EXTCON_USB when
> one SDP charger connector was reported.
>
> Signed-off-by: Baolin Wang <[email protected]>
> ---
> drivers/phy/phy-rockchip-inno-usb2.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/phy/phy-rockchip-inno-usb2.c b/drivers/phy/phy-rockchip-inno-usb2.c
> index 2f99ec9..71fbe0f 100644
> --- a/drivers/phy/phy-rockchip-inno-usb2.c
> +++ b/drivers/phy/phy-rockchip-inno-usb2.c
> @@ -595,9 +595,14 @@ static void rockchip_usb2phy_otg_sm_work(struct work_struct *work)
> if (rport->vbus_attached != vbus_attach) {
> rport->vbus_attached = vbus_attach;
>
> - if (notify_charger && rphy->edev)
> + if (notify_charger && rphy->edev) {
> extcon_set_cable_state_(rphy->edev,
> cable, vbus_attach);
> + if (cable == EXTCON_CHG_USB_SDP)
> + extcon_set_cable_state_(rphy->edev,
> + EXTCON_USB,
> + vbus_attach);
> + }
> }
> break;
> case OTG_STATE_B_PERIPHERAL:
>

Looks good to me. But I prefer to use the 'extcon_set_state_sync' intead of extcon_set_cable_state_().
Reviewed-by: Chanwoo Choi <[email protected]>

I sent the patches[1] for extcon API to alter the deprecated API.
If you possible, I'd like you to alter the extcon API instead of deprecated API.
[1] https://patchwork.kernel.org/patch/9453645/
- extcon_set_cable_state_() -> extcon_set_state_sync()
- extcon_get_cable_state_() -> extcon_get_state()
- Use devm_extcon_register_notifier() instead of extcon_register_notifier().

--
Regards,
Chanwoo Choi

2016-12-21 07:53:47

by Baolin Wang

[permalink] [raw]
Subject: Re: [PATCH 1/3] extcon: Add documentation for EXTCON_CHG_USB_* and EXTCON_USB_*

Hi,

On 21 December 2016 at 15:20, Chanwoo Choi <[email protected]> wrote:
> Hi,
>
> On 2016년 12월 21일 15:10, Baolin Wang wrote:
>> Current there is both "EXTCON_USB" and "EXTCON_CHG_USB_SDP" which
>> both seem to suggest a standard downstream port. But there is no
>> documentation describing how these relate.
>>
>> Thus add documentation to describe EXTCON_CHG_USB_SDP should always
>> appear together with EXTCON_USB, and EXTCON_CHG_USB_ACA would normally
>> appear with EXTCON_USB_HOST.
>>
>> Signed-off-by: Baolin Wang <[email protected]>
>> ---
>> include/linux/extcon.h | 9 ++++++++-
>> 1 file changed, 8 insertions(+), 1 deletion(-)
>>
>> diff --git a/include/linux/extcon.h b/include/linux/extcon.h
>> index b871c0c..6498b05 100644
>> --- a/include/linux/extcon.h
>> +++ b/include/linux/extcon.h
>> @@ -46,7 +46,14 @@
>> #define EXTCON_USB 1
>> #define EXTCON_USB_HOST 2
>>
>> -/* Charging external connector */
>> +/*
>> + * Charging external connector
>> + *
>> + * When one SDP charger connector was reported, we should also report
>> + * the USB connector, which means EXTCON_CHG_USB_SDP should always
>> + * appear together with EXTCON_USB. The same as ACA charger connector,
>> + * EXTCON_CHG_USB_ACA should always appear with EXTCON_USB_HOST.
>> + */
>
> Looks good to me.
> But, you use the different word for ACA as following:
> I think that 'would normally' is proper in descritpion.

Okay, I will change to 'would normally' in next version patch. Thanks.

>
> - commit msg : EXTCON_CHG_USB_ACA would normally appear with EXTCON_USB_HOST.
> - description: EXTCON_CHG_USB_ACA should always appear with EXTCON_USB_HOST.
>
>> #define EXTCON_CHG_USB_SDP 5 /* Standard Downstream Port */
>> #define EXTCON_CHG_USB_DCP 6 /* Dedicated Charging Port */
>> #define EXTCON_CHG_USB_CDP 7 /* Charging Downstream Port */
>>
>
> --
> Regards,
> Chanwoo Choi



--
Baolin.wang
Best Regards

2016-12-21 07:55:07

by Baolin Wang

[permalink] [raw]
Subject: Re: [PATCH 2/3] extcon: axp288: Set EXTCON_USB when EXTCON_CHG_USB_SDP was set

Hi,

On 21 December 2016 at 15:22, Chanwoo Choi <[email protected]> wrote:
> Hi,
>
> On 2016년 12월 21일 15:10, Baolin Wang wrote:
>> According to the documentation, we should set the EXTCON_USB when
>> one SDP charger connector was reported.
>>
>> Signed-off-by: Baolin Wang <[email protected]>
>> ---
>> drivers/extcon/extcon-axp288.c | 7 ++++++-
>> 1 file changed, 6 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
>> index 42f41e8..4490726 100644
>> --- a/drivers/extcon/extcon-axp288.c
>> +++ b/drivers/extcon/extcon-axp288.c
>> @@ -102,6 +102,7 @@ enum axp288_extcon_irq {
>> };
>>
>> static const unsigned int axp288_extcon_cables[] = {
>> + EXTCON_USB,
>> EXTCON_CHG_USB_SDP,
>> EXTCON_CHG_USB_CDP,
>> EXTCON_CHG_USB_DCP,
>> @@ -225,8 +226,12 @@ static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info)
>> vbus_attach ? USB_EVENT_VBUS : USB_EVENT_NONE, NULL);
>> }
>>
>> - if (notify_charger)
>> + if (notify_charger) {
>> extcon_set_state_sync(info->edev, cable, vbus_attach);
>> + if (cable == EXTCON_CHG_USB_SDP)
>> + extcon_set_state_sync(info->edev, EXTCON_USB,
>> + vbus_attach);
>> + }
>>
>> /* Clear the flags on disconnect event */
>> if (!vbus_attach)
>>
>
> The extcon-axp288.c driver has some patches on extcon-next[1] branch.
> [1] https://git.kernel.org/cgit/linux/kernel/git/chanwoo/extcon.git/log/?h=extcon-next
>
> I rework your patch on extcon-next branch as following:
> If you ok, I'll merge it for v4.11.

It is okay for me. Thanks.

>
> commit 1a96f92bdfab86d0b634e56092f543cad348fd0b
> Refs: extcon-next, extcon-next-for-4.10-15-g1a96f92bdfab
> Author: Baolin Wang <[email protected]>
> AuthorDate: Wed Dec 21 15:51:26 2016 +0900
> Commit: Chanwoo Choi <[email protected]>
> CommitDate: Wed Dec 21 15:52:00 2016 +0900
>
> extcon: axp288: Set EXTCON_USB when EXTCON_CHG_USB_SDP was set
>
> According to the documentation, we should set the EXTCON_USB when
> one SDP charger connector was reported.
>
> Signed-off-by: Baolin Wang <[email protected]>
> Signed-off-by: Chanwoo Choi <[email protected]>
> ---
> drivers/extcon/extcon-axp288.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
> index 3e145e2a4860..f4fd03e58e37 100644
> --- a/drivers/extcon/extcon-axp288.c
> +++ b/drivers/extcon/extcon-axp288.c
> @@ -96,6 +96,7 @@ enum axp288_extcon_irq {
> EXTCON_CHG_USB_SDP,
> EXTCON_CHG_USB_CDP,
> EXTCON_CHG_USB_DCP,
> + EXTCON_USB,
> EXTCON_NONE,
> };
>
> @@ -206,8 +207,15 @@ static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info)
> : EXTCON_GPIO_MUX_SEL_PMIC);
>
> extcon_set_state_sync(info->edev, info->previous_cable, false);
> + if (info->previous_cable == EXTCON_CHG_USB_SDP)
> + extcon_set_state_sync(info->edev, EXTCON_USB, false);
> +
> if (vbus_attach) {
> extcon_set_state_sync(info->edev, cable, vbus_attach);
> + if (cable == EXTCON_CHG_USB_SDP)
> + extcon_set_state_sync(info->edev, EXTCON_USB,
> + vbus_attach);
> +
> info->previous_cable = cable;
> }
>
> --
> Regards,
> Chanwoo Choi



--
Baolin.wang
Best Regards

2016-12-21 07:57:11

by Baolin Wang

[permalink] [raw]
Subject: Re: [PATCH 3/3] phy: rockchip-inno-usb2: Set EXTCON_USB when EXTCON_CHG_USB_SDP was set

Hi,

On 21 December 2016 at 15:29, Chanwoo Choi <[email protected]> wrote:
> Hi,
>
> On 2016년 12월 21일 15:10, Baolin Wang wrote:
>> According to the documentation, we should set the EXTCON_USB when
>> one SDP charger connector was reported.
>>
>> Signed-off-by: Baolin Wang <[email protected]>
>> ---
>> drivers/phy/phy-rockchip-inno-usb2.c | 7 ++++++-
>> 1 file changed, 6 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/phy/phy-rockchip-inno-usb2.c b/drivers/phy/phy-rockchip-inno-usb2.c
>> index 2f99ec9..71fbe0f 100644
>> --- a/drivers/phy/phy-rockchip-inno-usb2.c
>> +++ b/drivers/phy/phy-rockchip-inno-usb2.c
>> @@ -595,9 +595,14 @@ static void rockchip_usb2phy_otg_sm_work(struct work_struct *work)
>> if (rport->vbus_attached != vbus_attach) {
>> rport->vbus_attached = vbus_attach;
>>
>> - if (notify_charger && rphy->edev)
>> + if (notify_charger && rphy->edev) {
>> extcon_set_cable_state_(rphy->edev,
>> cable, vbus_attach);
>> + if (cable == EXTCON_CHG_USB_SDP)
>> + extcon_set_cable_state_(rphy->edev,
>> + EXTCON_USB,
>> + vbus_attach);
>> + }
>> }
>> break;
>> case OTG_STATE_B_PERIPHERAL:
>>
>
> Looks good to me. But I prefer to use the 'extcon_set_state_sync' intead of extcon_set_cable_state_().
> Reviewed-by: Chanwoo Choi <[email protected]>
>
> I sent the patches[1] for extcon API to alter the deprecated API.
> If you possible, I'd like you to alter the extcon API instead of deprecated API.

Okay, I will change to extcon_set_state_sync() in next version patch. Thanks.

> [1] https://patchwork.kernel.org/patch/9453645/
> - extcon_set_cable_state_() -> extcon_set_state_sync()
> - extcon_get_cable_state_() -> extcon_get_state()
> - Use devm_extcon_register_notifier() instead of extcon_register_notifier().
>
> --
> Regards,
> Chanwoo Choi



--
Baolin.wang
Best Regards

2016-12-21 07:58:17

by Chanwoo Choi

[permalink] [raw]
Subject: Re: [PATCH 1/3] extcon: Add documentation for EXTCON_CHG_USB_* and EXTCON_USB_*

Hi,

On 2016년 12월 21일 16:53, Baolin Wang wrote:
> Hi,
>
> On 21 December 2016 at 15:20, Chanwoo Choi <[email protected]> wrote:
>> Hi,
>>
>> On 2016년 12월 21일 15:10, Baolin Wang wrote:
>>> Current there is both "EXTCON_USB" and "EXTCON_CHG_USB_SDP" which
>>> both seem to suggest a standard downstream port. But there is no
>>> documentation describing how these relate.
>>>
>>> Thus add documentation to describe EXTCON_CHG_USB_SDP should always
>>> appear together with EXTCON_USB, and EXTCON_CHG_USB_ACA would normally
>>> appear with EXTCON_USB_HOST.
>>>
>>> Signed-off-by: Baolin Wang <[email protected]>
>>> ---
>>> include/linux/extcon.h | 9 ++++++++-
>>> 1 file changed, 8 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/include/linux/extcon.h b/include/linux/extcon.h
>>> index b871c0c..6498b05 100644
>>> --- a/include/linux/extcon.h
>>> +++ b/include/linux/extcon.h
>>> @@ -46,7 +46,14 @@
>>> #define EXTCON_USB 1
>>> #define EXTCON_USB_HOST 2
>>>
>>> -/* Charging external connector */
>>> +/*
>>> + * Charging external connector
>>> + *
>>> + * When one SDP charger connector was reported, we should also report
>>> + * the USB connector, which means EXTCON_CHG_USB_SDP should always
>>> + * appear together with EXTCON_USB. The same as ACA charger connector,
>>> + * EXTCON_CHG_USB_ACA should always appear with EXTCON_USB_HOST.
>>> + */
>>
>> Looks good to me.
>> But, you use the different word for ACA as following:
>> I think that 'would normally' is proper in descritpion.
>
> Okay, I will change to 'would normally' in next version patch. Thanks.

Don't need to send next patch. I modify it and apply it. Thanks.

--
Regards,
Chanwoo Choi

2016-12-21 07:59:10

by Baolin Wang

[permalink] [raw]
Subject: Re: [PATCH 1/3] extcon: Add documentation for EXTCON_CHG_USB_* and EXTCON_USB_*

Hi,

On 21 December 2016 at 15:58, Chanwoo Choi <[email protected]> wrote:
> Hi,
>
> On 2016년 12월 21일 16:53, Baolin Wang wrote:
>> Hi,
>>
>> On 21 December 2016 at 15:20, Chanwoo Choi <[email protected]> wrote:
>>> Hi,
>>>
>>> On 2016년 12월 21일 15:10, Baolin Wang wrote:
>>>> Current there is both "EXTCON_USB" and "EXTCON_CHG_USB_SDP" which
>>>> both seem to suggest a standard downstream port. But there is no
>>>> documentation describing how these relate.
>>>>
>>>> Thus add documentation to describe EXTCON_CHG_USB_SDP should always
>>>> appear together with EXTCON_USB, and EXTCON_CHG_USB_ACA would normally
>>>> appear with EXTCON_USB_HOST.
>>>>
>>>> Signed-off-by: Baolin Wang <[email protected]>
>>>> ---
>>>> include/linux/extcon.h | 9 ++++++++-
>>>> 1 file changed, 8 insertions(+), 1 deletion(-)
>>>>
>>>> diff --git a/include/linux/extcon.h b/include/linux/extcon.h
>>>> index b871c0c..6498b05 100644
>>>> --- a/include/linux/extcon.h
>>>> +++ b/include/linux/extcon.h
>>>> @@ -46,7 +46,14 @@
>>>> #define EXTCON_USB 1
>>>> #define EXTCON_USB_HOST 2
>>>>
>>>> -/* Charging external connector */
>>>> +/*
>>>> + * Charging external connector
>>>> + *
>>>> + * When one SDP charger connector was reported, we should also report
>>>> + * the USB connector, which means EXTCON_CHG_USB_SDP should always
>>>> + * appear together with EXTCON_USB. The same as ACA charger connector,
>>>> + * EXTCON_CHG_USB_ACA should always appear with EXTCON_USB_HOST.
>>>> + */
>>>
>>> Looks good to me.
>>> But, you use the different word for ACA as following:
>>> I think that 'would normally' is proper in descritpion.
>>
>> Okay, I will change to 'would normally' in next version patch. Thanks.
>
> Don't need to send next patch. I modify it and apply it. Thanks.

Okay, Thanks a lot.

--
Baolin.wang
Best Regards

2016-12-21 07:59:50

by Chanwoo Choi

[permalink] [raw]
Subject: Re: [PATCH 2/3] extcon: axp288: Set EXTCON_USB when EXTCON_CHG_USB_SDP was set

Hi,

On 2016년 12월 21일 16:55, Baolin Wang wrote:
> Hi,
>
> On 21 December 2016 at 15:22, Chanwoo Choi <[email protected]> wrote:
>> Hi,
>>
>> On 2016년 12월 21일 15:10, Baolin Wang wrote:
>>> According to the documentation, we should set the EXTCON_USB when
>>> one SDP charger connector was reported.
>>>
>>> Signed-off-by: Baolin Wang <[email protected]>
>>> ---
>>> drivers/extcon/extcon-axp288.c | 7 ++++++-
>>> 1 file changed, 6 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
>>> index 42f41e8..4490726 100644
>>> --- a/drivers/extcon/extcon-axp288.c
>>> +++ b/drivers/extcon/extcon-axp288.c
>>> @@ -102,6 +102,7 @@ enum axp288_extcon_irq {
>>> };
>>>
>>> static const unsigned int axp288_extcon_cables[] = {
>>> + EXTCON_USB,
>>> EXTCON_CHG_USB_SDP,
>>> EXTCON_CHG_USB_CDP,
>>> EXTCON_CHG_USB_DCP,
>>> @@ -225,8 +226,12 @@ static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info)
>>> vbus_attach ? USB_EVENT_VBUS : USB_EVENT_NONE, NULL);
>>> }
>>>
>>> - if (notify_charger)
>>> + if (notify_charger) {
>>> extcon_set_state_sync(info->edev, cable, vbus_attach);
>>> + if (cable == EXTCON_CHG_USB_SDP)
>>> + extcon_set_state_sync(info->edev, EXTCON_USB,
>>> + vbus_attach);
>>> + }
>>>
>>> /* Clear the flags on disconnect event */
>>> if (!vbus_attach)
>>>
>>
>> The extcon-axp288.c driver has some patches on extcon-next[1] branch.
>> [1] https://git.kernel.org/cgit/linux/kernel/git/chanwoo/extcon.git/log/?h=extcon-next
>>
>> I rework your patch on extcon-next branch as following:
>> If you ok, I'll merge it for v4.11.
>
> It is okay for me. Thanks.

Applied it. Thanks.

[snip]

--
Regards,
Chanwoo Choi