lkml.org 
[lkml]   [2019]   [Dec]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH v7 6/7] arm64: dts: allwinner: h6: Add thermal sensor and thermal zones
    On Wed, Dec 18, 2019 at 03:18:51PM -0800, Vasily Khoruzhick wrote:
    > On Tue, Dec 17, 2019 at 8:32 PM Chen-Yu Tsai <wens@csie.org> wrote:
    > >
    > > On Wed, Dec 18, 2019 at 12:22 PM Vasily Khoruzhick <anarsoul@gmail.com> wrote:
    > > >
    > > > From: Ondrej Jirman <megous@megous.com>
    > > >
    > > > There are two sensors, one for CPU, one for GPU.
    > > >
    > > > Signed-off-by: Ondrej Jirman <megous@megous.com>
    > > > Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
    > > > ---
    > > > arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 33 ++++++++++++++++++++
    > > > 1 file changed, 33 insertions(+)
    > > >
    > > > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
    > > > index 29824081b43b..cdcb1a36301a 100644
    > > > --- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
    > > > +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
    > > > @@ -11,6 +11,7 @@
    > > > #include <dt-bindings/reset/sun50i-h6-ccu.h>
    > > > #include <dt-bindings/reset/sun50i-h6-r-ccu.h>
    > > > #include <dt-bindings/reset/sun8i-de2.h>
    > > > +#include <dt-bindings/thermal/thermal.h>
    > > >
    > > > / {
    > > > interrupt-parent = <&gic>;
    > > > @@ -233,6 +234,12 @@ dma: dma-controller@3002000 {
    > > > sid: efuse@3006000 {
    > > > compatible = "allwinner,sun50i-h6-sid";
    > > > reg = <0x03006000 0x400>;
    > > > + #address-cells = <1>;
    > > > + #size-cells = <1>;
    > > > +
    > > > + ths_calibration: thermal-sensor-calibration@14 {
    > > > + reg = <0x14 0x6>;
    > >
    > > Nit: my preference is to use words as the smallest increment, so this
    > > would have a size of 8 instead of 6. Same goes for the A64 dts.
    > >
    > > AFAICT this doesn't impact the driver in any way.
    >
    > H6 has only 2 sensors, so it should be 4. That's my overlook, I'll
    > change it to 4 for H6 and to 8 for A64.

    No it's correct. There's 2 bytes reference temperature and 2x 2 byte
    values for individual sensor calibration constants.

    regards,
    o.

    > >
    > > ChenYu
    > >
    > >
    > > > + };
    > > > };
    > > >
    > > > watchdog: watchdog@30090a0 {
    > > > @@ -856,5 +863,31 @@ r_i2c: i2c@7081400 {
    > > > #address-cells = <1>;
    > > > #size-cells = <0>;
    > > > };
    > > > +
    > > > + ths: thermal-sensor@5070400 {
    > > > + compatible = "allwinner,sun50i-h6-ths";
    > > > + reg = <0x05070400 0x100>;
    > > > + interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
    > > > + clocks = <&ccu CLK_BUS_THS>;
    > > > + clock-names = "bus";
    > > > + resets = <&ccu RST_BUS_THS>;
    > > > + nvmem-cells = <&ths_calibration>;
    > > > + nvmem-cell-names = "calibration";
    > > > + #thermal-sensor-cells = <1>;
    > > > + };
    > > > + };
    > > > +
    > > > + thermal-zones {
    > > > + cpu-thermal {
    > > > + polling-delay-passive = <0>;
    > > > + polling-delay = <0>;
    > > > + thermal-sensors = <&ths 0>;
    > > > + };
    > > > +
    > > > + gpu-thermal {
    > > > + polling-delay-passive = <0>;
    > > > + polling-delay = <0>;
    > > > + thermal-sensors = <&ths 1>;
    > > > + };
    > > > };
    > > > };
    > > > --
    > > > 2.24.1
    > > >

    \
     
     \ /
      Last update: 2019-12-19 02:05    [W:2.747 / U:0.208 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site