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Date: Thu, 17 Sep 2015 17:01:16 +0100
From: Adam Thomson <Adam.Thomson.Opensource@...semi.com>
To: Mark Brown <broonie@...nel.org>,
Liam Girdwood <lgirdwood@...il.com>,
Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>,
Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>
CC: <alsa-devel@...a-project.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>,
Support Opensource <support.opensource@...semi.com>,
Jason Coughlan <jason.coughlan@...semi.com>
Subject: [PATCH 2/3] ASoC: da7219: Add bindings documentation for DA7219 audio
codec
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@...semi.com>
---
Documentation/devicetree/bindings/sound/da7219.txt | 106 +++++++++++++++++++++
1 file changed, 106 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/da7219.txt
diff --git a/Documentation/devicetree/bindings/sound/da7219.txt b/Documentation/devicetree/bindings/sound/da7219.txt
new file mode 100644
index 0000000..b29fe2e
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/da7219.txt
@@ -0,0 +1,106 @@
+Dialog Semiconductor DA7219 Audio Codec bindings
+
+DA7219 is an audio codec with advanced accessory detect features.
+
+======
+
+Required properties:
+- compatible : Should be "dlg,da7219"
+- reg: Specifies the I2C slave address
+
+Optional properties:
+- wakeup-source: Flag to indicate this device can wake system (suspend/resume).
+
+- clocks : phandle and clock specifier for codec MCLK.
+- clock-names : Clock name string for 'clocks' attribute, should be "mclk".
+
+- dlg,io-lvl : Expected voltage level range for digital IO
+ ["2.5V_3.6V", "1.2V_2.8V"]
+- dlg,ldo-lvl : Required internal LDO voltage (mV) level
+ [<1050>, <1100>, <1200>, <1400>]
+- dlg,micbias-lvl : Voltage (mV) for Mic Bias
+ [<1800>, <2000>, <2200>, <2400>, <2600>, <2800>, <3000>]
+- dlg,mic-amp-in-sel : Mic input source type
+ ["diff", "se_p", "se_n"]
+- dlg,cp-mchange : Charge pump voltage tracking mode
+ ["largest_vol", "dac_vol", "sig_mag"]
+- dlg,cp-vol-thresh : Charge pump volume threshold value (6-bit value)
+ [ 0 - 0x3F ]
+
+======
+
+Child node - 'da7219_aad':
+
+Required properties:
+- interrupt-parent : Specifies the phandle of the interrupt controller to which
+ the IRQs from DA7219 AAD block are delivered to.
+- interrupts : IRQ line info for DA7219 AAD block.
+ (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt for
+ further information relating to interrupt properties)
+
+Optional properties:
+- dlg,micbias-pulse-lvl : Mic bias higher voltage pulse level (mV).
+ [<2800>, <2900>]
+- dlg,micbias-pulse-time : Mic bias higher voltage pulse duration (ms)
+- dlg,btn-cfg : Periodic button press measurements for 4-pole jack (ms)
+ [<2>, <5>, <10>, <50>, <100>, <200>, <500>]
+- dlg,mic-det-thr : Impedance threshold for mic detection measurement (Ohms)
+ [<200>, <500>, <750>, <1000>]
+- dlg,jack-ins-deb : Debounce time for jack insertion (ms)
+ [<5>, <10>, <20>, <50>, <100>, <200>, <500>, <1000>]
+- dlg,jack-det-rate: Jack type detection latency (3/4 pole)
+ ["32ms_64ms", "64ms_128ms", "128ms_256ms", "256ms_512ms"]
+- dlg,jack-rem-deb : Debounce time for jack removal (ms)
+ [<1>, <5>, <10>, <20>]
+- dlg,a-d-btn-thr : Impedance threshold between buttons A and D
+ [0x0 - 0xFF]
+- dlg,d-b-btn-thr : Impedance threshold between buttons D and B
+ [0x0 - 0xFF]
+- dlg,b-c-btn-thr : Impedance threshold between buttons B and C
+ [0x0 - 0xFF]
+- dlg,c-mic-btn-thr : Impedance threshold between button C and Mic
+ [0x0 - 0xFF]
+- dlg,btn-avg : Number of 8-bit readings for averaged button measurement
+ [<1>, <2>, <4>, <8>]
+- dlg,adc-1bit-rpt : Repeat count for 1-bit button measurement
+ [<1>, <2>, <4>, <8>]
+
+======
+
+Example:
+
+ codec: da7219@1a {
+ compatible = "dlg,da7219";
+ reg = <0x1a>;
+
+ clocks = <&clks 201>;
+ clock-names = "mclk";
+
+ dlg,io-lvl = "1.2V_2.8V";
+ dlg,ldo-lvl = <1200>;
+
+ dlg,micbias-lvl = <2600>;
+ dlg,mic-amp-in-sel = "diff";
+
+ dlg,cp-mchange = "sig_mag";
+ dlg,cp-vol-thresh = <0x34>;
+
+ da7219_aad {
+ interrupt-parent = <&gpio6>;
+ interrupts = <11 IRQ_TYPE_LEVEL_HIGH>;
+
+ dlg,btn-cfg = <50>;
+ dlg,mic-det-thr = <500>;
+ dlg,jack-ins-deb = <20>;
+ dlg,jack-det-rate = "32ms_64ms";
+ dlg,jack-rem-deb = <1>;
+
+ dlg,a-d-btn-thr = <0xa>;
+ dlg,d-b-btn-thr = <0x16>;
+ dlg,b-c-btn-thr = <0x21>;
+ dlg,c-mic-btn-thr = <0x3E>;
+
+ dlg,btn-avg = <4>;
+ dlg,adc-1bit-rpt = <1>;
+ };
+ };
--
1.9.3
--
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