From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- .../devicetree/bindings/mfd/arizona.txt | 95 ++++++++++++++++++++++ 1 file changed, 95 insertions(+) create mode 100644 kernel/Documentation/devicetree/bindings/mfd/arizona.txt (limited to 'kernel/Documentation/devicetree/bindings/mfd/arizona.txt') diff --git a/kernel/Documentation/devicetree/bindings/mfd/arizona.txt b/kernel/Documentation/devicetree/bindings/mfd/arizona.txt new file mode 100644 index 000000000..7665aa959 --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/mfd/arizona.txt @@ -0,0 +1,95 @@ +Wolfson Arizona class audio SoCs + +These devices are audio SoCs with extensive digital capabilites and a range +of analogue I/O. + +Required properties: + + - compatible : One of the following chip-specific strings: + "wlf,wm5102" + "wlf,wm5110" + "wlf,wm8280" + "wlf,wm8997" + - reg : I2C slave address when connected using I2C, chip select number when + using SPI. + + - interrupts : The interrupt line the /IRQ signal for the device is + connected to. + - interrupt-controller : Arizona class devices contain interrupt controllers + and may provide interrupt services to other devices. + - interrupt-parent : The parent interrupt controller. + - #interrupt-cells: the number of cells to describe an IRQ, this should be 2. + The first cell is the IRQ number. + The second cell is the flags, encoded as the trigger masks from + Documentation/devicetree/bindings/interrupts.txt + + - gpio-controller : Indicates this device is a GPIO controller. + - #gpio-cells : Must be 2. The first cell is the pin number and the + second cell is used to specify optional parameters (currently unused). + + - AVDD-supply, DBVDD1-supply, CPVDD-supply : Power supplies for the device, + as covered in Documentation/devicetree/bindings/regulator/regulator.txt + + - DBVDD2-supply, DBVDD3-supply : Additional databus power supplies (wm5102, + wm5110, wm8280) + + - SPKVDDL-supply, SPKVDDR-supply : Speaker driver power supplies (wm5102, + wm5110, wm8280) + + - SPKVDD-supply : Speaker driver power supply (wm8997) + +Optional properties: + + - wlf,reset : GPIO specifier for the GPIO controlling /RESET + - wlf,ldoena : GPIO specifier for the GPIO controlling LDOENA + + - wlf,gpio-defaults : A list of GPIO configuration register values. Defines + for the appropriate values can found in . If + absent, no configuration of these registers is performed. If any entry has + a value that is out of range for a 16 bit register then the chip default + will be used. If present exactly five values must be specified. + + - wlf,inmode : A list of INn_MODE register values, where n is the number + of input signals. Valid values are 0 (Differential), 1 (Single-ended) and + 2 (Digital Microphone). If absent, INn_MODE registers set to 0 by default. + If present, values must be specified less than or equal to the number of + input singals. If values less than the number of input signals, elements + that has not been specifed are set to 0 by default. + + - wlf,dmic-ref : DMIC reference voltage source for each input, can be + selected from either MICVDD or one of the MICBIAS's, defines + (ARIZONA_DMIC_xxxx) are provided in . If + present, the number of values should be less than or equal to the + number of inputs, unspecified inputs will use the chip default. + + - DCVDD-supply, MICVDD-supply : Power supplies, only need to be specified if + they are being externally supplied. As covered in + Documentation/devicetree/bindings/regulator/regulator.txt + +Optional subnodes: + - ldo1 : Initial data for the LDO1 regulator, as covered in + Documentation/devicetree/bindings/regulator/regulator.txt + - micvdd : Initial data for the MICVDD regulator, as covered in + Documentation/devicetree/bindings/regulator/regulator.txt + +Example: + +codec: wm5102@1a { + compatible = "wlf,wm5102"; + reg = <0x1a>; + interrupts = <347>; + interrupt-controller; + #interrupt-cells = <2>; + interrupt-parent = <&gic>; + + gpio-controller; + #gpio-cells = <2>; + + wlf,gpio-defaults = < + ARIZONA_GP_FN_TXLRCLK + ARIZONA_GP_DEFAULT + ARIZONA_GP_DEFAULT + ARIZONA_GP_DEFAULT + ARIZONA_GP_DEFAULT + >; +}; -- cgit 1.2.3-korg