From: Srinivas Kandagatla <srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
To: Peng Fan <van.freenix-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: shawnguo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH V2 3/3] nvmem: imx-ocotp: handling clock
Date: Tue, 10 May 2016 11:31:45 +0100 [thread overview]
Message-ID: <5731B891.4040303@linaro.org> (raw)
In-Reply-To: <20160509124140.GA20259-UjNudPizn+S3Qbzl2UAKHw@public.gmane.org>
On 09/05/16 13:41, Peng Fan wrote:
> Hi Srinivas,
>
> On Mon, May 09, 2016 at 01:28:14PM +0100, Srinivas Kandagatla wrote:
>> Thanks for the Ping, I totally missed this thread.
>>
>> On 20/04/16 18:26, Peng Fan wrote:
>>> Before access ocotp nvmem area, the clock should be enabled.
>>> Or, `hexdump nvmem` will hang the system. So, use such flow:
>>> "
>>> 1. clock_enable_prepare
>>> 2. read nvmem ocotp area
>>> 3. clock_disable_unprepare
>>> "
>>>
>>> Signed-off-by: Peng Fan <van.freenix-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>>> Cc: Srinivas Kandagatla <srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
>>> Cc: Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
>>> Cc: Shawn Guo <shawnguo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
>>> ---
>>>
>>> V2:
>>> Follow Fabio's comments, check return value of clk_prepare_enable
>>>
>>> drivers/nvmem/imx-ocotp.c | 16 +++++++++++++++-
>>> 1 file changed, 15 insertions(+), 1 deletion(-)
>>
>> Changes to the driver looks good to me,
>> Only one comment, As the clock property is now made mandatory, you should
>> update the dt-bindings with this info too.
>
> In Documentation/devicetree/bindings/nvmem/imx-ocotp.txt,
> the clock property is already marked Required properties:
Ok, I can take this patch, dt patch should go via the dt maintainers.
thanks,
--srini
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next prev parent reply other threads:[~2016-05-10 10:31 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-20 17:26 [PATCH V2 1/3] arm: dts: imx6qdl: add clocks property for ocotp node Peng Fan
2016-04-20 17:26 ` [PATCH V2 2/3] arm: dts: imx6sl: " Peng Fan
2016-04-20 17:26 ` [PATCH V2 3/3] nvmem: imx-ocotp: handling clock Peng Fan
2016-05-09 12:20 ` Peng Fan
[not found] ` <1461173177-11930-3-git-send-email-van.freenix-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-05-09 12:28 ` Srinivas Kandagatla
2016-05-09 12:41 ` Peng Fan
[not found] ` <20160509124140.GA20259-UjNudPizn+S3Qbzl2UAKHw@public.gmane.org>
2016-05-10 10:31 ` Srinivas Kandagatla [this message]
2016-05-10 12:04 ` Peng Fan
2016-06-06 8:07 ` [PATCH V2 1/3] arm: dts: imx6qdl: add clocks property for ocotp node Shawn Guo
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