diff mbox series

[v3,04/11] Documentation: DT: bindings: mfd: add A33 GPADC binding

Message ID 20170321153611.16228-5-quentin.schulz@free-electrons.com
State Superseded
Headers show
Series add thermal throttling to Allwinner A33 SoC | expand

Commit Message

Quentin Schulz March 21, 2017, 3:36 p.m. UTC 
This patch adds documentation for the A33 GPADC binding.

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>

---

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

-- 
2.9.3

Comments

Rob Herring March 29, 2017, 12:31 a.m. UTC | #1 
On Tue, Mar 21, 2017 at 04:36:04PM +0100, Quentin Schulz wrote:
> This patch adds documentation for the A33 GPADC binding.

> 

> Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>

> ---

> 

> 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


If you respin, "dt-bindings: mfd: ..." for the subject.

Acked-by: Rob Herring <robh@kernel.org>
diff mbox series

Patch

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>;
+	};