Re: [PATCH 5/9] arm64: dts: rockchip: add rk3568 tsadc nodes

Peter Geis
2022-01-17T13:50:24Z

On Mon, Jan 17, 2022 at 3:43 AM Piotr Oniszczuk
<piotr.oniszczuk@gmail.com> wrote:
>
>
>
> > Wiadomość napisana przez Peter Geis <pgwipeout@gmail.com> w dniu 28.07.2021, o godz. 15:55:
> >
> > Add the thermal and tsadc nodes to the rk3568 device tree.
> > There are two sensors, one for the cpu, one for the gpu.
> >
> > Signed-off-by: Peter Geis <pgwipeout@gmail.com>
> > ---
> > .../boot/dts/rockchip/rk3568-pinctrl.dtsi | 6 ++
> > arch/arm64/boot/dts/rockchip/rk356x.dtsi | 71 +++++++++++++++++++
> > 2 files changed, 77 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/rockchip/rk3568-pinctrl.dtsi b/arch/arm64/boot/dts/rockchip/rk3568-pinctrl.dtsi
> > index a588ca95ace2..b464c7bda1f7 100644
> > --- a/arch/arm64/boot/dts/rockchip/rk3568-pinctrl.dtsi
> > +++ b/arch/arm64/boot/dts/rockchip/rk3568-pinctrl.dtsi
> > @@ -2420,6 +2420,12 @@ spi3m1_cs1: spi3m1-cs1 {
> > };
> >
> > tsadc {
> > + /omit-if-no-ref/
> > + tsadc_gpio: tsadc-gpio {
> > + rockchip,pins =
> > + <0 RK_PA1 0 &pcfg_pull_none>;
> > + };
> > +
> > /omit-if-no-ref/
> > tsadcm0_shut: tsadcm0-shut {
> > rockchip,pins =
> > diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> > index 77c679304916..0905fac0726a 100644
> > --- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> > +++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> > @@ -51,6 +51,7 @@ cpu0: cpu@0 {
> > compatible = "arm,cortex-a55";
> > reg = <0x0 0x0>;
> > clocks = <&scmi_clk 0>;
> > + #cooling-cells = <2>;
> > enable-method = "psci";
> > operating-points-v2 = <&cpu0_opp_table>;
> > };
> > @@ -59,6 +60,7 @@ cpu1: cpu@100 {
> > device_type = "cpu";
> > compatible = "arm,cortex-a55";
> > reg = <0x0 0x100>;
> > + #cooling-cells = <2>;
> > enable-method = "psci";
> > operating-points-v2 = <&cpu0_opp_table>;
> > };
> > @@ -67,6 +69,7 @@ cpu2: cpu@200 {
> > device_type = "cpu";
> > compatible = "arm,cortex-a55";
> > reg = <0x0 0x200>;
> > + #cooling-cells = <2>;
> > enable-method = "psci";
> > operating-points-v2 = <&cpu0_opp_table>;
> > };
> > @@ -75,6 +78,7 @@ cpu3: cpu@300 {
> > device_type = "cpu";
> > compatible = "arm,cortex-a55";
> > reg = <0x0 0x300>;
> > + #cooling-cells = <2>;
> > enable-method = "psci";
> > operating-points-v2 = <&cpu0_opp_table>;
> > };
> > @@ -774,6 +778,73 @@ uart9: serial@fe6d0000 {
> > status = "disabled";
> > };
> >
> > + thermal_zones: thermal-zones {
> > + cpu_thermal: cpu-thermal {
> > + polling-delay-passive = <100>;
> > + polling-delay = <1000>;
> > +
> > + thermal-sensors = <&tsadc 0>;
> > +
> > + trips {
> > + cpu_alert0: cpu_alert0 {
> > + temperature = <70000>;
> > + hysteresis = <2000>;
> > + type = "passive";
> > + };
> > + cpu_alert1: cpu_alert1 {
> > + temperature = <75000>;
> > + hysteresis = <2000>;
> > + type = "passive";
> > + };
> > + cpu_crit: cpu_crit {
> > + temperature = <95000>;
> > + hysteresis = <2000>;
> > + type = "critical";
> > + };
> > + };
> > +
> > + cooling-maps {
> > + map0 {
> > + trip = <&cpu_alert0>;
> > + cooling-device =
> > + <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> > + };
> > + };
> > + };
> > +
> > + gpu_thermal: gpu-thermal {
> > + polling-delay-passive = <20>; /* milliseconds */
> > + polling-delay = <1000>; /* milliseconds */
> > +
> > + thermal-sensors = <&tsadc 1>;
> > + };
> > + };
> > +
> > + tsadc: tsadc@fe710000 {
> > + compatible = "rockchip,rk3568-tsadc";
> > + reg = <0x0 0xfe710000 0x0 0x100>;
> > + interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
> > + assigned-clocks = <&cru CLK_TSADC_TSEN>, <&cru CLK_TSADC>;
> > + assigned-clock-rates = <17000000>, <700000>;
> > + clocks = <&cru CLK_TSADC>, <&cru PCLK_TSADC>;
> > + clock-names = "tsadc", "apb_pclk";
> > + resets = <&cru SRST_TSADC>, <&cru SRST_P_TSADC>,
> > + <&cru SRST_TSADCPHY>;
> > + reset-names = "tsadc", "tsadc-apb", "tsadc-phy";
> > + rockchip,grf = <&grf>;
> > + rockchip,hw-tshut-temp = <95000>;
> > + rockchip,hw-tshut-mode = <1>; /* tshut mode 0:CRU 1:GPIO */
> > + rockchip,hw-tshut-polarity = <0>; /* tshut polarity 0:LOW 1:HIGH */
> > + pinctrl-names = "gpio", "otpout";
> > + pinctrl-0 = <&tsadc_gpio>;
> > + pinctrl-1 = <&tsadc_shutorg>;
> > + #thermal-sensor-cells = <1>;
> > + status = "disabled";
> > + };
> > +
> > saradc: saradc@fe720000 {
> > compatible = "rockchip,rk3568-saradc", "rockchip,rk3399-saradc";
> > reg = <0x0 0xfe720000 0x0 0x100>;
> > --
> > 2.25.1
> >
> >
> > _______________________________________________
> > Linux-rockchip mailing list
> > Linux-rockchip@lists.infradead.org
> > http://lists.infradead.org/mailman/listinfo/linux-rockchip
>
> Peter,
>
> I'm trying to use this series to get thermal on rk3566 based tvbox (x96-x6).
> Driver loads but i'm getting following error:
>
> [ 132.873979] rockchip-thermal fe710000.tsadc: failed to register sensor 0: -517
> [ 132.874650] rockchip-thermal fe710000.tsadc: failed to register sensor[0] : error = -517
>
> Maybe you have some hints here?

Error -517 means -EPROBE_DEFER, a device it relies on hasn't probed.
TSADC doesn't directly rely on anything that shouldn't already be
enabled. (Pinctrl, clocks, and grf all break a lot more than tsadc if
disabled)
Does your kernel config have all of the rockchip elements enabled?