linux-kernel - Re: [PATCH v8 1/9] nvmem: Add a simple NVMEM framework for nvmem providers

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Message-ID: <55B10D42.1020803@linaro.org>
Date:	Thu, 23 Jul 2015 16:50:26 +0100
From:	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:	Stefan Wahren <stefan.wahren@...e.com>,
	linux-arm-kernel@...ts.infradead.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:	Rob Herring <robh+dt@...nel.org>, Mark Brown <broonie@...nel.org>,
	s.hauer@...gutronix.de, linux-api@...r.kernel.org,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	linux-arm-msm@...r.kernel.org, arnd@...db.de, sboyd@...eaurora.org,
	pantelis.antoniou@...sulko.com, mporter@...sulko.com,
	wxt@...k-chips.com,
	Maxime Ripard <maxime.ripard@...e-electrons.com>
Subject: Re: [PATCH v8 1/9] nvmem: Add a simple NVMEM framework for nvmem
 providers



On 23/07/15 16:26, Stefan Wahren wrote:
> Hi Srinivas,
>
> Am 20.07.2015 um 16:43 schrieb Srinivas Kandagatla:
>> This patch adds just providers part of the framework just to enable easy
>> review.
>>
>> Up until now, NVMEM drivers like eeprom were stored in drivers/misc,
>> where they all had to duplicate pretty much the same code to register
>> a sysfs file, allow in-kernel users to access the content of the devices
>> they were driving, etc.
>>
>> This was also a problem as far as other in-kernel users were involved,
>> since the solutions used were pretty much different from on driver to
>> another, there was a rather big abstraction leak.
>>
>> This introduction of this framework aims at solving this. It also
>> introduces DT representation for consumer devices to go get the data
>> they require (MAC Addresses, SoC/Revision ID, part numbers, and so on)
>> from the nvmems.
>>
>> Having regmap interface to this framework would give much better
>> abstraction for nvmems on different buses.
>>
>> Signed-off-by: Maxime Ripard <maxime.ripard@...e-electrons.com>
>> [Maxime Ripard: intial version of eeprom framework]
>> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
>> ---
>>   drivers/Kconfig                |   2 +
>>   drivers/Makefile               |   1 +
>>   drivers/nvmem/Kconfig          |  13 ++
>>   drivers/nvmem/Makefile         |   6 +
>>   drivers/nvmem/core.c           | 384 +++++++++++++++++++++++++++++++++++++++++
>>   include/linux/nvmem-consumer.h |  23 +++
>>   include/linux/nvmem-provider.h |  47 +++++
>>   7 files changed, 476 insertions(+)
>>   create mode 100644 drivers/nvmem/Kconfig
>>   create mode 100644 drivers/nvmem/Makefile
>>   create mode 100644 drivers/nvmem/core.c
>>   create mode 100644 include/linux/nvmem-consumer.h
>>   create mode 100644 include/linux/nvmem-provider.h
>
> i've tested this patch with my mxs-ocotp driver [1].
>
> So you can add
>
> Tested-by: Stefan Wahren <stefan.wahren@...e.com>
>
Thanks for tested-by, That helps.

--srini




> Regards
> Stefan
>
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