| Message ID | 20170405090634.4649-2-quentin.schulz@free-electrons.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, 05 Apr 2017, Quentin Schulz wrote: > This patch adds documentation for the A33 GPADC binding. > > Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com> > Acked-by: Rob Herring <robh@kernel.org> > --- > v4: > - correct patch title, > > v3: > - fixed missing allwinner in front of compatible, > - updated compatible to allwinner,sun8i-a33-ths to better reflect the > datasheet's name, > - updated example's DT node name and label to ths, > > added in v2 > .../devicetree/bindings/mfd/sun4i-gpadc.txt | 59 ++++++++++++++++++++++ > 1 file changed, 59 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt Applied, thanks. > diff --git a/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt > new file mode 100644 > index 0000000..badff36 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt > @@ -0,0 +1,59 @@ > +Allwinner SoCs' GPADC Device Tree bindings > +------------------------------------------ > +The Allwinner SoCs all have an ADC that can also act as a thermal sensor > +and sometimes as a touchscreen controller. > + > +Required properties: > + - compatible: "allwinner,sun8i-a33-ths", > + - reg: mmio address range of the chip, > + - #thermal-sensor-cells: shall be 0, > + - #io-channel-cells: shall be 0, > + > +Example: > + ths: ths@01c25000 { > + compatible = "allwinner,sun8i-a33-ths"; > + reg = <0x01c25000 0x100>; > + #thermal-sensor-cells = <0>; > + #io-channel-cells = <0>; > + }; > + > +sun4i, sun5i and sun6i SoCs are also supported via the older binding: > + > +sun4i resistive touchscreen controller > +-------------------------------------- > + > +Required properties: > + - compatible: "allwinner,sun4i-a10-ts", "allwinner,sun5i-a13-ts" or > + "allwinner,sun6i-a31-ts" > + - reg: mmio address range of the chip > + - interrupts: interrupt to which the chip is connected > + - #thermal-sensor-cells: shall be 0 > + > +Optional properties: > + - allwinner,ts-attached : boolean indicating that an actual touchscreen > + is attached to the controller > + - allwinner,tp-sensitive-adjust : integer (4 bits) > + adjust sensitivity of pen down detection > + between 0 (least sensitive) and 15 > + (defaults to 15) > + - allwinner,filter-type : integer (2 bits) > + select median and averaging filter > + samples used for median / averaging filter > + 0: 4/2 > + 1: 5/3 > + 2: 8/4 > + 3: 16/8 > + (defaults to 1) > + > +Example: > + > + rtp: rtp@01c25000 { > + compatible = "allwinner,sun4i-a10-ts"; > + reg = <0x01c25000 0x100>; > + interrupts = <29>; > + allwinner,ts-attached; > + #thermal-sensor-cells = <0>; > + /* sensitive/noisy touch panel */ > + allwinner,tp-sensitive-adjust = <0>; > + allwinner,filter-type = <3>; > + };
diff --git a/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt new file mode 100644 index 0000000..badff36 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt @@ -0,0 +1,59 @@ +Allwinner SoCs' GPADC Device Tree bindings +------------------------------------------ +The Allwinner SoCs all have an ADC that can also act as a thermal sensor +and sometimes as a touchscreen controller. + +Required properties: + - compatible: "allwinner,sun8i-a33-ths", + - reg: mmio address range of the chip, + - #thermal-sensor-cells: shall be 0, + - #io-channel-cells: shall be 0, + +Example: + ths: ths@01c25000 { + compatible = "allwinner,sun8i-a33-ths"; + reg = <0x01c25000 0x100>; + #thermal-sensor-cells = <0>; + #io-channel-cells = <0>; + }; + +sun4i, sun5i and sun6i SoCs are also supported via the older binding: + +sun4i resistive touchscreen controller +-------------------------------------- + +Required properties: + - compatible: "allwinner,sun4i-a10-ts", "allwinner,sun5i-a13-ts" or + "allwinner,sun6i-a31-ts" + - reg: mmio address range of the chip + - interrupts: interrupt to which the chip is connected + - #thermal-sensor-cells: shall be 0 + +Optional properties: + - allwinner,ts-attached : boolean indicating that an actual touchscreen + is attached to the controller + - allwinner,tp-sensitive-adjust : integer (4 bits) + adjust sensitivity of pen down detection + between 0 (least sensitive) and 15 + (defaults to 15) + - allwinner,filter-type : integer (2 bits) + select median and averaging filter + samples used for median / averaging filter + 0: 4/2 + 1: 5/3 + 2: 8/4 + 3: 16/8 + (defaults to 1) + +Example: + + rtp: rtp@01c25000 { + compatible = "allwinner,sun4i-a10-ts"; + reg = <0x01c25000 0x100>; + interrupts = <29>; + allwinner,ts-attached; + #thermal-sensor-cells = <0>; + /* sensitive/noisy touch panel */ + allwinner,tp-sensitive-adjust = <0>; + allwinner,filter-type = <3>; + };