On Tuesday 29 November 2022 12:18:28 Michael Ellerman wrote:
> Pali Rohár <pali@xxxxxxxxxx> writes:
> > Michael, could you take this patch?
>
> Yep.
>
> With these dts patches it always helps if you tell me that it passes the
> DT schema checks, so that I don't get yelled at by the DT people :)
Mostly dt schemas for p1/p2 are incomplete, I sent more patches but they
are waiting and I was not able to setup & run dt schema checker. Hence
I tested everything on the hardware to ensure that it works correctly.
And this patch works on Turris 1.1 board, I also tested sensors tool.
So the important is what is in DTS file, the stuff which is used on HW.
> cheers
>
> > On Sunday 09 October 2022 14:05:06 Pali Rohár wrote:
> >> On Friday 30 September 2022 14:46:18 Pali Rohár wrote:
> >> > + CC hwmon ML
> >> >
> >> > On Friday 30 September 2022 14:39:01 Pali Rohár wrote:
> >> > > Channel 0 of SA56004ED chip refers to internal SA56004ED chip sensor (chip
> >> > > itself is located on the board) and channel 1 of SA56004ED chip refers to
> >> > > external sensor which is connected to temperature diode of the P2020 CPU.
> >> > >
> >> > > Fixes: 54c15ec3b738 ("powerpc: dts: Add DTS file for CZ.NIC Turris 1.x routers")
> >> > > Signed-off-by: Pali Rohár <pali@xxxxxxxxxx>
> >> > > ---
> >> > > With this change userspace 'sensors' applications prints labels:
> >> > >
> >> > > $ sensors
> >> > > sa56004-i2c-0-4c
> >> > > Adapter: MPC adapter (i2c@3000)
> >> > > board: +34.2°C (low = +0.0°C, high = +70.0°C)
> >> > > (crit = +85.0°C, hyst = +75.0°C)
> >> > > cpu: +58.9°C (low = +0.0°C, high = +70.0°C)
> >> > > (crit = +85.0°C, hyst = +75.0°C)
> >> > >
> >> > > And without this change it prints just generic tempX names:
> >> > >
> >> > > $ sensors
> >> > > sa56004-i2c-0-4c
> >> > > Adapter: MPC adapter (i2c@3000)
> >> > > temp1: +43.0°C (low = +0.0°C, high = +70.0°C)
> >> > > (crit = +85.0°C, hyst = +75.0°C)
> >> > > temp2: +63.4°C (low = +0.0°C, high = +70.0°C)
> >> > > (crit = +85.0°C, hyst = +75.0°C)
> >> > > ---
> >> > > arch/powerpc/boot/dts/turris1x.dts | 14 ++++++++++++++
> >> > > 1 file changed, 14 insertions(+)
> >> > >
> >> > > diff --git a/arch/powerpc/boot/dts/turris1x.dts b/arch/powerpc/boot/dts/turris1x.dts
> >> > > index 4033c554b06a..5b5278c32e43 100644
> >> > > --- a/arch/powerpc/boot/dts/turris1x.dts
> >> > > +++ b/arch/powerpc/boot/dts/turris1x.dts
> >> > > @@ -69,6 +69,20 @@
> >> > > interrupt-parent = <&gpio>;
> >> > > interrupts = <12 IRQ_TYPE_LEVEL_LOW>, /* GPIO12 - ALERT pin */
> >> > > <13 IRQ_TYPE_LEVEL_LOW>; /* GPIO13 - CRIT pin */
> >> > > + #address-cells = <1>;
> >> > > + #size-cells = <0>;
> >> > > +
> >> > > + /* Local temperature sensor (SA56004ED internal) */
> >> > > + channel@0 {
> >> > > + reg = <0>;
> >> > > + label = "board";
> >> > > + };
> >> > > +
> >> > > + /* Remote temperature sensor (D+/D- connected to P2020 CPU Temperature Diode) */
> >> > > + channel@1 {
> >> > > + reg = <1>;
> >> > > + label = "cpu";
> >> > > + };
> >> >
> >> > I'm not sure if you want UPPERCASE, lowercase, PascalCase, kebab-case
> >> > or snake_case format of labels. Or if you want also "temp" or
> >> > "temperature" keyword in the label. So please adjust label to the
> >> > preferred one, if proposed format is not the correct.
> >>
> >> Ok, if nobody complains then please take this patch as is.
> >>
> >> > > };
> >> > >
> >> > > /* DDR3 SPD/EEPROM */
> >> > > --
> >> > > 2.20.1
> >> > >
