From: Chris Lapa <chris@lapa.com.au>
To: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-pm@vger.kernel.org
Subject: Re: [PATCH v2 1/4] max8903: adds documentation for device tree bindings.
Date: Thu, 16 Jun 2016 16:48:51 +1000 [thread overview]
Message-ID: <b2a7b202-e166-d23a-24b2-328c206545e5@lapa.com.au> (raw)
In-Reply-To: <576248A2.3030004@samsung.com>
On 16/06/2016 4:35 PM, Krzysztof Kozlowski wrote:
> On 06/14/2016 03:54 AM, Chris Lapa wrote:
>> On 10/06/2016 11:51 PM, Krzysztof Kozlowski wrote:
>>> On 06/10/2016 02:32 PM, Chris Lapa wrote:
>>>> From: Chris Lapa <chris@lapa.com.au>
>>>>
>>>> Signed-off-by: Chris Lapa <chris@lapa.com.au>
>>>> ---
>>>> .../devicetree/bindings/power/max8903-charger.txt | 30
>>>> ++++++++++++++++++++++
>>>> 1 file changed, 30 insertions(+)
>>>> create mode 100644
>>>> Documentation/devicetree/bindings/power/max8903-charger.txt
>>>
>>> You again skipped all of the maintainers. Your patch won't be applied.
>>> You need to send the patch to the appropriate person so he/she could
>>> apply it.
>>>
>>> From this patch:
>>> Rob Herring <robh+dt@kernel.org> (maintainer:OPEN FIRMWARE AND FLATTENED
>>> DEVICE TREE BINDINGS,commit_signer:9/19=47%)
>>> Mark Rutland <mark.rutland@arm.com> (maintainer:OPEN FIRMWARE AND
>>> FLATTENED DEVICE TREE BINDINGS)
>>>
>>> From power suppyy tree:
>>> Sebastian Reichel <sre@kernel.org> (maintainer:POWER SUPPLY
>>> CLASS/SUBSYSTEM and DRIVERS)
>>> Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> (maintainer:POWER SUPPLY
>>> CLASS/SUBSYSTEM and DRIVERS)
>>> David Woodhouse <dwmw2@infradead.org> (maintainer:POWER SUPPLY
>>> CLASS/SUBSYSTEM and DRIVERS)
>>>
>>>
>>>> diff --git
>>>> a/Documentation/devicetree/bindings/power/max8903-charger.txt
>>>> b/Documentation/devicetree/bindings/power/max8903-charger.txt
>>>> new file mode 100644
>>>> index 0000000..e0b5366
>>>> --- /dev/null
>>>> +++ b/Documentation/devicetree/bindings/power/max8903-charger.txt
>>>> @@ -0,0 +1,30 @@
>>>> +Maxim Semiconductor MAX8903 Battery Charger bindings
>>>> +
>>>> +Required properties:
>>>> +- compatible: "maxim,max8903-charger" for MAX8903 Battery Charger
>>>> +- dc_valid: Specifies that the DC portion of the MAX8903 has been
>>>> connected up
>>>> + and that dok-gpios should be specified
>>>
>>> You don't need the dc_valid nor the usb_valid. If the dok-gpios are
>>> present - use DC power. If the uok-gpios - USB power.
>>>
>> I did think that as well, but I didn't want to break backwards
>> compatibility.
>
> What do you mean by backwards compatibility? The driver did not support
> DeviceTree before so it is not about DT compatibility. If you think
> about platform data then it is different: how you match DT into driver's
> structure is up to you.
Ah okay, I misunderstood you here. I thought you meant remove usb_valid
and dc_valid from the platform data. However determining usb and dc
validity from the gpios set in the DT does make more sense. I will do that!
>
>
>>
>>> If both or none: print error.
>> Its valid to have both connected.
>
> Ah, okay. Just an example.
>
>>
>>>
>>> BTW, It would be nice if send also the user of this bindings - DTS/DTSI.
>> I'm not sure I understand what you mean here?
The DTSI file used is almost identical to the copy I included in the
bindings document. Other then some extra pinmux stuff.
Thanks,
Chris
>
> I mean I would like to see the DTS file which is using this device and
> these bindings. It is not necessary but it would be nice.
>
> Best regards,
> Krzysztof
>
>>
>>>
>>> Best regards,
>>> Krzysztof
>>>
>>>> + - dok-gpios: Valid DC power has been detected
>>>> +- usb_valid: Specifies that the USB portion of the MAX8903 has been
>>>> connected up
>>>> + and that uok-gpios should be specified
>>>> + - uok-gpios: Valid USB power has been detected
>>>> +
>>>> +Optional properties:
>>>> +- cen-gpios: Charge enable pin
>>>> +- chg-gpios: Charger status pin
>>>> +- flt-gpios: Fault pin
>>>> +- dcm-gpios: Current limit mode setting (DC or USB)
>>>> +- usus-gpios: USB suspend pin
>>>> +
>>>> +
>>>> +Example:
>>>> +
>>>> + max8903-charger {
>>>> + compatible = "maxim,max8903-charger";
>>>> + dok-gpios = <&gpio2 3 GPIO_ACTIVE_LOW>;
>>>> + flt-gpios = <&gpio2 2 GPIO_ACTIVE_LOW>;
>>>> + chg-gpios = <&gpio3 15 GPIO_ACTIVE_LOW>;
>>>> + cen-gpios = <&gpio2 5 GPIO_ACTIVE_LOW>;
>>>> + dc_valid;
>>>> + status = "okay";
>>>> + };
>>>>
>>>
>>
>>
>>
>
next prev parent reply other threads:[~2016-06-16 6:49 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-02 6:44 [PATCH 0/2] max8903: Add device tree support and logic fixup chris
2016-06-02 6:44 ` [PATCH 1/2] max8903: adds support for initiation via device tree chris
2016-06-09 10:35 ` Krzysztof Kozlowski
2016-06-10 5:35 ` Chris Lapa
2016-06-10 6:13 ` Krzysztof Kozlowski
2016-06-10 10:23 ` Krzysztof Kozlowski
2016-06-02 6:44 ` [PATCH 2/2] max8903: cleans up confusing relationship between dc_valid, dok and dcm chris
2016-06-10 12:32 ` [PATCH v2 0/4] max8903: Add device tree support and logic fixup Chris Lapa
2016-06-10 12:32 ` [PATCH v2 1/4] max8903: adds documentation for device tree bindings Chris Lapa
2016-06-10 13:51 ` Krzysztof Kozlowski
2016-06-14 1:54 ` Chris Lapa
2016-06-16 6:35 ` Krzysztof Kozlowski
2016-06-16 6:48 ` Chris Lapa [this message]
2016-06-10 12:32 ` [PATCH v2 2/4] max8903: adds support for initiation via device tree Chris Lapa
2016-06-10 14:02 ` Krzysztof Kozlowski
2016-06-14 1:50 ` Chris Lapa
2016-06-10 12:32 ` [PATCH v2 3/4] max8903: cleans up confusing relationship between dc_valid, dok and dcm Chris Lapa
2016-06-10 12:32 ` [PATCH v2 4/4] max8903: remove unnecessary malloc failed message print out Chris Lapa
2016-06-10 14:08 ` Krzysztof Kozlowski
2016-06-17 5:00 ` [PATCH v3 0/7] max8903: Add device tree support and misc fixes Chris Lapa
2016-06-17 5:00 ` [PATCH v3 1/7] max8903: adds documentation for device tree bindings Chris Lapa
2016-06-17 6:15 ` Krzysztof Kozlowski
2016-06-20 13:22 ` Rob Herring
2016-06-20 23:43 ` Chris Lapa
2016-06-17 5:00 ` [PATCH v3 2/7] max8903: store pointer to pdata instead of copying it Chris Lapa
2016-06-17 6:14 ` Krzysztof Kozlowski
2016-06-17 5:00 ` [PATCH v3 3/7] max8903: cleans up confusing relationship between dc_valid, dok and dcm Chris Lapa
2016-06-17 6:23 ` Krzysztof Kozlowski
2016-06-17 6:26 ` Krzysztof Kozlowski
2016-06-17 6:28 ` Chris Lapa
2016-06-17 6:42 ` Krzysztof Kozlowski
2016-06-19 13:48 ` Chris Lapa
2016-06-17 5:00 ` [PATCH v3 4/7] max8903: adds requesting of gpios Chris Lapa
2016-06-17 6:30 ` Krzysztof Kozlowski
2016-06-19 13:51 ` Chris Lapa
2016-06-17 5:00 ` [PATCH v3 5/7] max8903: removes non zero validity checks on gpios Chris Lapa
2016-06-17 6:35 ` Krzysztof Kozlowski
2016-06-17 5:00 ` [PATCH v3 6/7] max8903: remove unnecessary 'out of memory' error message Chris Lapa
2016-06-17 6:35 ` Krzysztof Kozlowski
2016-06-17 5:00 ` [PATCH v3 7/7] max8903: adds support for initiation via device tree Chris Lapa
2016-06-17 6:41 ` Krzysztof Kozlowski
2016-06-19 13:52 ` Chris Lapa
2016-06-19 22:27 ` [PATCH v4 0/7] max8903: Add device tree support and misc fixes Chris Lapa
2016-06-19 22:27 ` [PATCH v4 1/7] max8903: adds documentation for device tree bindings Chris Lapa
2016-06-20 12:17 ` Krzysztof Kozlowski
2016-06-19 22:27 ` [PATCH v4 2/7] max8903: store pointer to pdata instead of copying it Chris Lapa
2016-06-20 12:18 ` Krzysztof Kozlowski
2016-06-19 22:27 ` [PATCH v4 3/7] max8903: cleans up confusing relationship between dc_valid, dok and dcm Chris Lapa
2016-06-20 12:18 ` Krzysztof Kozlowski
2016-06-19 22:27 ` [PATCH v4 4/7] max8903: adds requesting of gpios Chris Lapa
2016-06-20 12:20 ` Krzysztof Kozlowski
2016-06-19 22:27 ` [PATCH v4 5/7] max8903: removes non zero validity checks on gpios Chris Lapa
2016-06-20 12:21 ` Krzysztof Kozlowski
2016-06-19 22:27 ` [PATCH v4 6/7] max8903: remove unnecessary 'out of memory' error message Chris Lapa
2016-06-20 12:22 ` Krzysztof Kozlowski
2016-06-19 22:27 ` [PATCH v4 7/7] max8903: adds support for initiation via device tree Chris Lapa
2016-06-20 12:23 ` Krzysztof Kozlowski
2016-06-24 2:26 ` [PATCH v5 0/7] max8903: Add device tree support and misc fixes Chris Lapa
2016-06-24 2:26 ` [PATCH v5 1/7] max8903: adds documentation for device tree bindings Chris Lapa
2016-06-28 20:55 ` Rob Herring
2016-06-24 2:26 ` [PATCH v5 2/7] max8903: store pointer to pdata instead of copying it Chris Lapa
2016-06-24 2:26 ` [PATCH v5 3/7] max8903: cleans up confusing relationship between dc_valid, dok and dcm Chris Lapa
2016-06-24 2:26 ` [PATCH v5 4/7] max8903: adds requesting of gpios Chris Lapa
2016-06-24 2:26 ` [PATCH v5 5/7] max8903: removes non zero validity checks on gpios Chris Lapa
2016-06-24 2:26 ` [PATCH v5 6/7] max8903: remove unnecessary 'out of memory' error message Chris Lapa
2016-06-24 2:26 ` [PATCH v5 7/7] max8903: adds support for initiation via device tree Chris Lapa
2016-06-28 18:16 ` [PATCH v5 0/7] max8903: Add device tree support and misc fixes Sebastian Reichel
2016-06-28 23:05 ` Chris Lapa
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