* [PATCH v2] ARM: dts: vfxxx: Add syscon compatible with ocotp
@ 2020-08-20 4:10 Chris Healy
2020-08-20 11:01 ` Fabio Estevam
2020-08-21 13:20 ` Stefan Agner
0 siblings, 2 replies; 5+ messages in thread
From: Chris Healy @ 2020-08-20 4:10 UTC (permalink / raw)
To: shawnguo, s.hauer, kernel, stefan, robh+dt, andrew.smirnov,
linux-arm-kernel, devicetree, linux-kernel, festevam, stable
Cc: Chris Healy
From: Chris Healy <cphealy@gmail.com>
Add syscon compatibility with Vybrid ocotp node. This is required to
access the UID.
Fixes: fa8d20c8dbb77 ("ARM: dts: vfxxx: Add node corresponding to OCOTP")
Cc: stable@vger.kernel.org
Signed-off-by: Chris Healy <cphealy@gmail.com>
---
Changes in v2:
- Add Fixes line to commit message
arch/arm/boot/dts/vfxxx.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/vfxxx.dtsi b/arch/arm/boot/dts/vfxxx.dtsi
index 0fe03aa0367f..2259d11af721 100644
--- a/arch/arm/boot/dts/vfxxx.dtsi
+++ b/arch/arm/boot/dts/vfxxx.dtsi
@@ -495,7 +495,7 @@ edma1: dma-controller@40098000 {
};
ocotp: ocotp@400a5000 {
- compatible = "fsl,vf610-ocotp";
+ compatible = "fsl,vf610-ocotp", "syscon";
reg = <0x400a5000 0x1000>;
clocks = <&clks VF610_CLK_OCOTP>;
};
--
2.26.2
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^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH v2] ARM: dts: vfxxx: Add syscon compatible with ocotp
2020-08-20 4:10 [PATCH v2] ARM: dts: vfxxx: Add syscon compatible with ocotp Chris Healy
@ 2020-08-20 11:01 ` Fabio Estevam
2020-08-21 13:20 ` Stefan Agner
1 sibling, 0 replies; 5+ messages in thread
From: Fabio Estevam @ 2020-08-20 11:01 UTC (permalink / raw)
To: Chris Healy
Cc: open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
Andrey Smirnov, Sascha Hauer, linux-kernel, Stefan Agner,
Rob Herring, stable, Sascha Hauer, Shawn Guo,
moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE
Hi Chris,
On Thu, Aug 20, 2020 at 1:11 AM Chris Healy <cphealy@gmail.com> wrote:
>
> From: Chris Healy <cphealy@gmail.com>
>
> Add syscon compatibility with Vybrid ocotp node. This is required to
> access the UID.
>
> Fixes: fa8d20c8dbb77 ("ARM: dts: vfxxx: Add node corresponding to OCOTP")
> Cc: stable@vger.kernel.org
> Signed-off-by: Chris Healy <cphealy@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v2] ARM: dts: vfxxx: Add syscon compatible with ocotp
2020-08-20 4:10 [PATCH v2] ARM: dts: vfxxx: Add syscon compatible with ocotp Chris Healy
2020-08-20 11:01 ` Fabio Estevam
@ 2020-08-21 13:20 ` Stefan Agner
2020-08-21 14:13 ` Chris Healy
1 sibling, 1 reply; 5+ messages in thread
From: Stefan Agner @ 2020-08-21 13:20 UTC (permalink / raw)
To: Chris Healy
Cc: devicetree, andrew.smirnov, festevam, s.hauer, linux-kernel,
stable, robh+dt, kernel, shawnguo, linux-arm-kernel
On 2020-08-20 06:10, Chris Healy wrote:
> From: Chris Healy <cphealy@gmail.com>
>
> Add syscon compatibility with Vybrid ocotp node. This is required to
> access the UID.
Hm, it seems today the SoC driver uses the specific compatible. It also
should expose the UID as soc_id, see drivers/soc/imx/soc-imx.c.
Maybe it does make sense exposing it as syscon, but then we should
probably also adjust
Documentation/devicetree/bindings/nvmem/vf610-ocotp.txt.
--
Stefan
>
> Fixes: fa8d20c8dbb77 ("ARM: dts: vfxxx: Add node corresponding to OCOTP")
> Cc: stable@vger.kernel.org
> Signed-off-by: Chris Healy <cphealy@gmail.com>
> ---
> Changes in v2:
> - Add Fixes line to commit message
>
> arch/arm/boot/dts/vfxxx.dtsi | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/vfxxx.dtsi b/arch/arm/boot/dts/vfxxx.dtsi
> index 0fe03aa0367f..2259d11af721 100644
> --- a/arch/arm/boot/dts/vfxxx.dtsi
> +++ b/arch/arm/boot/dts/vfxxx.dtsi
> @@ -495,7 +495,7 @@ edma1: dma-controller@40098000 {
> };
>
> ocotp: ocotp@400a5000 {
> - compatible = "fsl,vf610-ocotp";
> + compatible = "fsl,vf610-ocotp", "syscon";
> reg = <0x400a5000 0x1000>;
> clocks = <&clks VF610_CLK_OCOTP>;
> };
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v2] ARM: dts: vfxxx: Add syscon compatible with ocotp
2020-08-21 13:20 ` Stefan Agner
@ 2020-08-21 14:13 ` Chris Healy
2020-08-21 14:24 ` Stefan Agner
0 siblings, 1 reply; 5+ messages in thread
From: Chris Healy @ 2020-08-21 14:13 UTC (permalink / raw)
To: Stefan Agner
Cc: open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
Andrey Smirnov, Fabio Estevam, Sascha Hauer, linux-kernel,
stable, Rob Herring, Pengutronix Kernel Team, Shawn Guo,
linux ARM
On Fri, Aug 21, 2020 at 6:21 AM Stefan Agner <stefan@agner.ch> wrote:
>
> On 2020-08-20 06:10, Chris Healy wrote:
> > From: Chris Healy <cphealy@gmail.com>
> >
> > Add syscon compatibility with Vybrid ocotp node. This is required to
> > access the UID.
>
> Hm, it seems today the SoC driver uses the specific compatible. It also
> should expose the UID as soc_id, see drivers/soc/imx/soc-imx.c.
>
Yes, until I added syscon, the soc_id was empty and I would get the
following line in dmesg: "failed to find vf610-ocotp regmap!
> Maybe it does make sense exposing it as syscon, but then we should
> probably also adjust
> Documentation/devicetree/bindings/nvmem/vf610-ocotp.txt.
>
Makes sense. I will update vf610-ocotp.txt in v3. Tnx
> --
> Stefan
>
> >
> > Fixes: fa8d20c8dbb77 ("ARM: dts: vfxxx: Add node corresponding to OCOTP")
> > Cc: stable@vger.kernel.org
> > Signed-off-by: Chris Healy <cphealy@gmail.com>
> > ---
> > Changes in v2:
> > - Add Fixes line to commit message
> >
> > arch/arm/boot/dts/vfxxx.dtsi | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/arch/arm/boot/dts/vfxxx.dtsi b/arch/arm/boot/dts/vfxxx.dtsi
> > index 0fe03aa0367f..2259d11af721 100644
> > --- a/arch/arm/boot/dts/vfxxx.dtsi
> > +++ b/arch/arm/boot/dts/vfxxx.dtsi
> > @@ -495,7 +495,7 @@ edma1: dma-controller@40098000 {
> > };
> >
> > ocotp: ocotp@400a5000 {
> > - compatible = "fsl,vf610-ocotp";
> > + compatible = "fsl,vf610-ocotp", "syscon";
> > reg = <0x400a5000 0x1000>;
> > clocks = <&clks VF610_CLK_OCOTP>;
> > };
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v2] ARM: dts: vfxxx: Add syscon compatible with ocotp
2020-08-21 14:13 ` Chris Healy
@ 2020-08-21 14:24 ` Stefan Agner
0 siblings, 0 replies; 5+ messages in thread
From: Stefan Agner @ 2020-08-21 14:24 UTC (permalink / raw)
To: Chris Healy
Cc: open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
Andrey Smirnov, Fabio Estevam, Sascha Hauer, linux-kernel,
stable, Rob Herring, Pengutronix Kernel Team, Shawn Guo,
linux ARM
On 2020-08-21 16:13, Chris Healy wrote:
> On Fri, Aug 21, 2020 at 6:21 AM Stefan Agner <stefan@agner.ch> wrote:
>>
>> On 2020-08-20 06:10, Chris Healy wrote:
>> > From: Chris Healy <cphealy@gmail.com>
>> >
>> > Add syscon compatibility with Vybrid ocotp node. This is required to
>> > access the UID.
>>
>> Hm, it seems today the SoC driver uses the specific compatible. It also
>> should expose the UID as soc_id, see drivers/soc/imx/soc-imx.c.
>>
> Yes, until I added syscon, the soc_id was empty and I would get the
> following line in dmesg: "failed to find vf610-ocotp regmap!
>
Ah I see, it looks up syscon, so that requires syscon to be in
compatible.
>> Maybe it does make sense exposing it as syscon, but then we should
>> probably also adjust
>> Documentation/devicetree/bindings/nvmem/vf610-ocotp.txt.
>>
> Makes sense. I will update vf610-ocotp.txt in v3. Tnx
>
Ok, thx. With that you can add Reviewed-by: Stefan Agner
<stefan@agner.ch> as well.
--
Stefan
>> --
>> Stefan
>>
>> >
>> > Fixes: fa8d20c8dbb77 ("ARM: dts: vfxxx: Add node corresponding to OCOTP")
>> > Cc: stable@vger.kernel.org
>> > Signed-off-by: Chris Healy <cphealy@gmail.com>
>> > ---
>> > Changes in v2:
>> > - Add Fixes line to commit message
>> >
>> > arch/arm/boot/dts/vfxxx.dtsi | 2 +-
>> > 1 file changed, 1 insertion(+), 1 deletion(-)
>> >
>> > diff --git a/arch/arm/boot/dts/vfxxx.dtsi b/arch/arm/boot/dts/vfxxx.dtsi
>> > index 0fe03aa0367f..2259d11af721 100644
>> > --- a/arch/arm/boot/dts/vfxxx.dtsi
>> > +++ b/arch/arm/boot/dts/vfxxx.dtsi
>> > @@ -495,7 +495,7 @@ edma1: dma-controller@40098000 {
>> > };
>> >
>> > ocotp: ocotp@400a5000 {
>> > - compatible = "fsl,vf610-ocotp";
>> > + compatible = "fsl,vf610-ocotp", "syscon";
>> > reg = <0x400a5000 0x1000>;
>> > clocks = <&clks VF610_CLK_OCOTP>;
>> > };
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2020-08-20 4:10 [PATCH v2] ARM: dts: vfxxx: Add syscon compatible with ocotp Chris Healy
2020-08-20 11:01 ` Fabio Estevam
2020-08-21 13:20 ` Stefan Agner
2020-08-21 14:13 ` Chris Healy
2020-08-21 14:24 ` Stefan Agner
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