linux-kernel - Re: [PATCH v2 1/5] thermal: imx: Add nvmem-cells alternate binding for OCOTP access

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Date:   Mon, 17 Jul 2017 13:57:34 -0500
From:   Rob Herring <robh@...nel.org>
To:     Leonard Crestez <leonard.crestez@....com>
Cc:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Eduardo Valentin <edubezval@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Lothar Waßmann <LW@...O-electronics.de>,
        Dong Aisheng <aisheng.dong@....com>,
        Bai Ping <ping.bai@....com>, Anson Huang <Anson.Huang@....com>,
        Octavian Purdila <octavian.purdila@....com>,
        Fabio Estevam <fabio.estevam@....com>,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/5] thermal: imx: Add nvmem-cells alternate binding
 for OCOTP access

On Fri, Jul 14, 2017 at 05:11:06PM +0300, Leonard Crestez wrote:
> On newer imx SOCs accessing OCOTP directly is wrong because the ocotp
> clock needs to be enabled first. Add a binding for accessing the same
> values through the imx-ocotp nvmem driver using nvmem-cells. This is
> similar to other thermal drivers.
> 
> The old binding is preserved for compatibility and because it still
> works fine on imx6qdl series chips.
> 
> In theory this problem could be solved by adding a reference to the
> OCOTP clock instead but it is better to hide such details in a specific
> nvmem driver.
> 
> Signed-off-by: Leonard Crestez <leonard.crestez@....com>
> ---
>  Documentation/devicetree/bindings/thermal/imx-thermal.txt | 7 +++++++
>  1 file changed, 7 insertions(+)

Acked-by: Rob Herring <robh@...nel.org>