linux-kernel - Re: [PATCH v5 0/2] drivers: rtc: add max313xx series rtc driver

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Date: Mon, 29 Jan 2024 03:28:03 +0000
From: Chris Packham <Chris.Packham@...iedtelesis.co.nz>
To: Nuno Sá <noname.nuno@...il.com>, "a.zummo@...ertech.it"
	<a.zummo@...ertech.it>, "alexandre.belloni@...tlin.com"
	<alexandre.belloni@...tlin.com>, "jdelvare@...e.com" <jdelvare@...e.com>,
	"linux@...ck-us.net" <linux@...ck-us.net>, "robh+dt@...nel.org"
	<robh+dt@...nel.org>, "krzysztof.kozlowski+dt@...aro.org"
	<krzysztof.kozlowski+dt@...aro.org>
CC: "linux-rtc@...r.kernel.org" <linux-rtc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-hwmon@...r.kernel.org" <linux-hwmon@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH v5 0/2] drivers: rtc: add max313xx series rtc driver


On 26/01/24 20:51, Nuno Sá wrote:
> On Fri, 2024-01-26 at 02:22 +0000, Chris Packham wrote:
>> Hi All,
>>
>> On 4/04/23 03:43, Ibrahim Tilki wrote:
>>> changelog:
>>> since v5:
>>>     - dt-binding: add enum value "2" to aux-voltage-chargable
>>>     - dt-binding: remove adi,trickle-diode-enable
>>>     - dt-binding: change description of trickle-resistor-ohms
>>>     - dt-binding: reorder as in example schema
>>>     - parse "wakeup-source" when irq not requested
>>>     - remove limitation on max31328 irq and clokout
>>>     - remove error and warning messages during trickle charger setup
>>>
>>> since v4:
>>>     - dt-binding: remove interrupt names.
>>>     - dt-binding: add description for "interrupts" property
>>>     - dt-binding: replace deprecated property "trickle-diode-disable"
>>>         by "aux-voltage-chargeable"
>>>     - dt-binding: add new property "adi,trickle-diode-enable"
>>>     - dt-binding: remove "wakeup-source"
>>>     - use clear_bit instead of __clear_bit
>>>     - use devm_of_clk_add_hw_provider instead of of_clk_add_provider
>>>     - use chip_desc pointer as driver data instead of enum.
>>>
>>> since v3:
>>>     - add "break" to fix warning: unannotated fall-through
>>>       Reported-by: kernel test robot <lkp@...el.com>
>>>
>>> since v2:
>>>     - dt-binding: update title and description
>>>     - dt-binding: remove last example
>>>     - drop watchdog support
>>>     - support reading 12Hr format instead of forcing 24hr at probe time
>>>     - use "tm_year % 100" instead of range check
>>>     - refactor max313xx_init for readability
>>>
>>> Ibrahim Tilki (2):
>>>     drivers: rtc: add max313xx series rtc driver
>>>     dt-bindings: rtc: add max313xx RTCs
>>>
>>>    .../devicetree/bindings/rtc/adi,max313xx.yaml |  144 +++
>>>    drivers/rtc/Kconfig                           |   11 +
>>>    drivers/rtc/Makefile                          |    1 +
>>>    drivers/rtc/rtc-max313xx.c                    | 1053 +++++++++++++++++
>>>    4 files changed, 1209 insertions(+)
>>>    create mode 100644 Documentation/devicetree/bindings/rtc/adi,max313xx.yaml
>>>    create mode 100644 drivers/rtc/rtc-max313xx.c
>> What happened to this series in the end? It kind of went off my radar
>> and I forgot about it.
>>
>> We've been carrying a version of these changes in our local tree for a
>> while (and using it quite happily I should add).
>>
> Hi Chris,
>
> Also not sure.... In the meantime Ibrahim left ADI so if this is not in shape to
> be merged he won't be able to re-spin. If there's a need for a re-spin, please
> let me know so I can see internally if there's someone who can continue this
> work. I would do it myself if I had the HW.
I've got a board with a max31331 so I can test that. I don't have any of 
the interrupts hooked up so I won't be able to test that. Looks like 
there was some outstanding discussion around the trickle-charge 
devicetree properties so I'd need to figure out what was wanted there. 
I'll try to pick up the last series from the mailing list and go from there.