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Message-Id: <1501579073-4764-1-git-send-email-s.abhisit@gmail.com>
Date: Tue, 1 Aug 2017 16:17:53 +0700
From: s.abhisit@...il.com
To: linus.walleij@...aro.org, robh+dt@...nel.org, mark.rutland@....com,
jic23@...nel.org, knaack.h@....de, lars@...afoo.de,
pmeerw@...erw.net
Cc: linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
Abhisit Sangjan <s.abhisit@...il.com>
Subject: [PATCH 5/5] Documentation: bindings: Add ti,lmp92001
From: Abhisit Sangjan <s.abhisit@...il.com>
---
.../devicetree/bindings/gpio/gpio-lmp92001.txt | 29 ++++++++++++++++++
.../bindings/iio/adc/ti-lmp92001-adc.txt | 21 +++++++++++++
.../bindings/iio/dac/ti-lmp92001-dac.txt | 35 ++++++++++++++++++++++
3 files changed, 85 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/gpio-lmp92001.txt
create mode 100644 Documentation/devicetree/bindings/iio/adc/ti-lmp92001-adc.txt
create mode 100644 Documentation/devicetree/bindings/iio/dac/ti-lmp92001-dac.txt
diff --git a/Documentation/devicetree/bindings/gpio/gpio-lmp92001.txt b/Documentation/devicetree/bindings/gpio/gpio-lmp92001.txt
new file mode 100644
index 0000000..62267ff
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-lmp92001.txt
@@ -0,0 +1,29 @@
+* Texas Instruments' LMP92001 GPIOs
+
+Required properties:
+ - compatible: Must be set to "ti,lmp92001-gpio".
+ - reg: i2c chip address for the device.
+ - gpio-controller: Marks the device node as a gpio controller.
+ - #gpio-cells : Should be two. The first cell is the pin number and the
+ second cell is used to specify the gpio polarity:
+ 0 = Active high
+ 1 = Active low
+- ti,lmp92001-gpio-dir: bit mask for direction and drive logic default. Since
+ the direction and the internal pull-down are shared register and similar to
+ open-collector drive:
+ 0 = [O]utput and also meaning drive it to low
+ 1 = [I]nput and also meaning open, to drive it to high is required to
+ have an external resistor
+
+Example:
+lmp92001@20 {
+ compatible = "ti,lmp92001";
+ reg = <0x20>;
+
+ lmp92001_gpio: lmp92001-gpio {
+ compatible = "ti,lmp92001-gpio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ ti,lmp92001-gpio-dir = /bits/ 8 <0xff>;
+ };
+};
\ No newline at end of file
diff --git a/Documentation/devicetree/bindings/iio/adc/ti-lmp92001-adc.txt b/Documentation/devicetree/bindings/iio/adc/ti-lmp92001-adc.txt
new file mode 100644
index 0000000..34d7809
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti-lmp92001-adc.txt
@@ -0,0 +1,21 @@
+* Texas Instruments' LMP92001 ADCs
+
+Required properties:
+ - compatible: Must be set to "ti,lmp92001-adc".
+ - reg: i2c chip address for the device.
+ - ti,lmp92001-adc-mode: adc operation, either continuous or single-shot.
+ - ti,lmp92001-adc-mask: bit mask for which channel is enable.
+ 0 = Off
+ 1 = On
+
+Example:
+lmp92001@20 {
+ compatible = "ti,lmp92001";
+ reg = <0x20>;
+
+ lmp92001-adc {
+ compatible = "ti,lmp92001-adc";
+ ti,lmp92001-adc-mode = "continuous";
+ ti,lmp92001-adc-mask = <0x00000079>;
+ };
+};
\ No newline at end of file
diff --git a/Documentation/devicetree/bindings/iio/dac/ti-lmp92001-dac.txt b/Documentation/devicetree/bindings/iio/dac/ti-lmp92001-dac.txt
new file mode 100644
index 0000000..f058cc0
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/ti-lmp92001-dac.txt
@@ -0,0 +1,35 @@
+* Texas Instruments' LMP92001 DACs
+
+Required properties:
+ - compatible: Must be set to "ti,lmp92001-dac".
+ - reg: i2c chip address for the device.
+ - ti,lmp92001-dac-hiz: hi-impedance control,
+ 1 = Forces all OUT[1:12] outputs to hi-z, 0 = normal
+ - ti,lmp92001-dac-outx:
+ Cy = 0, 1 = will force associated OUTx outputs to VDD
+ Cy = 0, 0 = will force associated OUTx outputs to GND
+ - ti,lmp92001-dac-gang: What group of Cy is governed to.
+ -----------------------------------------
+ | Cy | CDAC:GANG = 0 | CDAC:GANG = 1 |
+ -----------------------------------------
+ | C1 | OUT[1:4] | OUT[1:3] |
+ -----------------------------------------
+ | C2 | OUT[5:6] | OUT[4:6] |
+ -----------------------------------------
+ | C3 | OUT[7:8] | OUT[7:9] |
+ -----------------------------------------
+ | C4 | OUT[9:12] | OUT[10:12] |
+ -----------------------------------------
+
+Example:
+lmp92001@20 {
+ compatible = "ti,lmp92001";
+ reg = <0x20>;
+
+ lmp92001-dac {
+ compatible = "ti,lmp92001-dac";
+ ti,lmp92001-dac-hiz = /bits/ 8 <0>;
+ ti,lmp92001-dac-outx = /bits/ 8 <0>;
+ ti,lmp92001-dac-gang = /bits/ 8 <0>;
+ };
+};
--
2.7.4
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