For reference, here are the devicetree bindings in plaintext format. (Not for merge.)
Signed-off-by: Jonathan Neuschäfer <[email protected]> --- .../bindings/mfd/netronix,ntxec.txt | 58 +++++++++++++++++++ .../bindings/pwm/netronix,ntxec-pwm.txt | 27 +++++++++ .../bindings/rtc/netronix,ntxec-rtc.txt | 17 ++++++ 3 files changed, 102 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/netronix,ntxec.txt create mode 100644 Documentation/devicetree/bindings/pwm/netronix,ntxec-pwm.txt create mode 100644 Documentation/devicetree/bindings/rtc/netronix,ntxec-rtc.txt diff --git a/Documentation/devicetree/bindings/mfd/netronix,ntxec.txt b/Documentation/devicetree/bindings/mfd/netronix,ntxec.txt new file mode 100644 index 0000000000000..e303932657999 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/netronix,ntxec.txt @@ -0,0 +1,58 @@ +Netronix Embedded Controller + +This EC is found in e-book readers of multiple brands (e.g. Kobo, Tolino), and +is typically implemented as a TI MSP430 microcontroller. + + +Required properties: +- compatible: should be "netronix,ntxec" +- reg: The I2C address of the EC + +Optional properties: +- system-power-controller: + See Documentation/devicetree/bindings/power/power-controller.txt +- interrupts or interrupts-extended +- interrupt-controller +- #interrupt-cells: Should be 1 + +Optional subnodes: + +Sub-nodes are identified by their compatible string. + + compatible string | description +--------------------------------|-------------------------------------- + netronix,ntxec-pwm | PWM (used for backlight) + netronix,ntxec-rtc | real time clock + + +Example: + +&i2c3 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c3>; + status = "okay"; + + ec: embedded-controller@43 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_ntxec>; + + compatible = "netronix,ntxec"; + reg = <0x43>; + system-power-controller; + interrupt-parent = <&gpio4>; + interrupts = <11 IRQ_TYPE_EDGE_FALLING>; + interrupt-controller; + #interrupt-cells = <1>; + + pwm { + compatible = "netronix,ntxec-pwm"; + #pwm-cells = <1>; + }; + + rtc { + compatible = "netronix,ntxec-rtc"; + interrupts-extended = <&ec 15>; + interrupt-names = "alarm"; + }; + }; +}; diff --git a/Documentation/devicetree/bindings/pwm/netronix,ntxec-pwm.txt b/Documentation/devicetree/bindings/pwm/netronix,ntxec-pwm.txt new file mode 100644 index 0000000000000..50be27f82559e --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/netronix,ntxec-pwm.txt @@ -0,0 +1,27 @@ +PWM functionality in Netronix Embedded Controller + +Required properties: +- compatible: should be "netronix,ntxec-pwm" +- #pwm-cells: should be 1. + +Available PWM channels: +- 0: The PWM channel controlled by registers 0xa1-0xa7 + +Example: + + embedded-controller@43 { + compatible = "netronix,ntxec"; + ... + + ec_pwm: pwm { + compatible = "netronix,ntxec-pwm"; + #pwm-cells = <1>; + }; + }; + + ... + + backlight { + compatible = "pwm-backlight"; + pwms = <&ec_pwm 0 50000>; + }; diff --git a/Documentation/devicetree/bindings/rtc/netronix,ntxec-rtc.txt b/Documentation/devicetree/bindings/rtc/netronix,ntxec-rtc.txt new file mode 100644 index 0000000000000..0ef9e791b6a36 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/netronix,ntxec-rtc.txt @@ -0,0 +1,17 @@ +Netronix embedded controller RTC + +Required properties: + +- compatible: should be "netronix,ntxec-rtc" + + +Example: + + embedded-controller@43 { + compatible = "netronix,ntxec"; + ... + + rtc { + compatible = "netronix,ntxec-rtc"; + }; + } -- 2.27.0
