[PATCH v2 0/3] Add the efuse driver on rockchip platform

Caesar Wang wxt at rock-chips.com
Tue Jun 16 03:06:04 PDT 2015

Hi Srinivas,

在 2015年06月16日 17:21, Srinivas Kandagatla 写道:
> Hi Stefan,
> On 16/06/15 09:52, Stefan Wahren wrote:
>> Hi Caesar,
>> [add Maxime and Srinivas]
>> Am 16.06.2015 um 09:27 schrieb Caesar Wang:
>>> The original driver is uploaded by Jianqun.
>>> Here is his patchs:
>>>      https://patchwork.kernel.org/patch/5410341/
>>>      https://patchwork.kernel.org/patch/5410351/
>>> Jianqun, nevermind!
>>> I check-pick it and re-upload the driver for the upstream.
>>> e.g.:
>>>      Tested by on minnie board.(kernel-4.1-rc8)
>>>      cd /sys/devices/platform/ffb40000.efuse
>>>      localhost ffb40000.efuse # cat cpu_leakage_show
>>>      cpu_version_show
>>>      The results:
>>>              19
>>>              2
>>> Changes in v2:
>>> - Change the document decription.
>>> - Move the efuse driver into driver/soc/vendor.
>>> - update the efuse driver.
>>> - Add the dts node on RK3288.
>> i want to mention that there is a upcoming new framework suitable for
>> efuse drivers:
>> https://lkml.org/lkml/2015/5/21/643
>> Unfortunately i don't know the current development state.
> Currently this framework is used by atleast 3 drivers(qcom-tsens, 
> qcom-cpr, begel-bone-cape manager) which are still floating in the 
> mailing list.
> I was hoping that these 3 users would getback with tested-by.. which 
> did not happen for last 3-4 weeks.
> I would appreciate, If you could try framework too, and let me know.

I will do that...

203d56b WIP: nvmem: add device tree helper functions
7d822d7 nvmem: sunxi: Move the SID driver to the nvmem framework
f54130d nvmem: qfprom: Add bindings for qfprom
6e078d2 nvmem: qfprom: Add Qualcomm QFPROM support.
750d32b nvmem: Add simple nvmem-mmio consumer helper functions.
6390111 nvmem: Add bindings for simple nvmem framework
1c02217 nvmem: Add nvmem_device based consumer apis.
61ce74f nvmem: Add a simple NVMEM framework for consumers
0f82237 nvmem: Add a simple NVMEM framework for nvmem providers
7547598 regmap: Introduce regmap_get_reg_stride.
f3bc1c0 regmap: Introduce regmap_get_max_register.
f0b3b70 ARM: rockchip: fix the SMP code style
8a28ee6 ARM: rockchip: ensure CPU to enter WFI/WFE state
609deeb ARM: rockchip: fix the CPU soft reset
2a876e4 ARM: rockchip: restore dapswjdp after suspend
e260818 Linux 4.1-rc4
ab992dc watchdog: Fix merge 'conflict'

At the moment, I don't know how to use this framework.
I need some time to dig it, I'm happy if you some reference(driver or 

> I added two of wrappers on top of v5 at: 
> https://git.linaro.org/people/srinivas.kandagatla/linux.git/shortlog/refs/heads/nvmem-dev-v5
> I think I should request Mark to take the framework.
> --srini
>> Regards
>> Stefan

- Caesar

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