[PATCH] ARM: sun7i: dt: Enable audio codec on pcDuino V3 Nano

[PATCH] ARM: sun7i: dt: Enable audio codec on pcDuino V3 Nano

[Adam Sampson]

The pcDuino V3 Nano has a 3.5mm TRRS jack socket for audio, using the
CTIA standard pinout, connected to HPOUTL, HPOUTR, HPCOM/HPCOMFB and
MICIN1/VMIC (via appropriate RC networks) on the A20. The PH00 GPIO is
wired for headphone plug detection: it reads 0 when nothing's plugged
in, and 1 when a plug is inserted.

LINEINL/R and FMINL/R are not connected.

Signed-off-by: Adam Sampson <ats-G+91BasbrijYtjvyW6yDsg@public.gmane.org>
---
 arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts b/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts
index 1757a6a..ddac732 100644
--- a/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts
+++ b/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts
@@ -82,6 +82,10 @@
 	status = "okay";
 };
 
+&codec {
+	status = "okay";
+};
+
 &cpu0 {
 	cpu-supply = <&reg_dcdc2>;
 };
-- 
2.1.4

Re: [PATCH] ARM: sun7i: dt: Enable audio codec on pcDuino V3 Nano

[Maxime Ripard]

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Hi,

On Fri, Oct 23, 2015 at 11:36:27PM +0100, Adam Sampson wrote:
> The pcDuino V3 Nano has a 3.5mm TRRS jack socket for audio, using the
> CTIA standard pinout, connected to HPOUTL, HPOUTR, HPCOM/HPCOMFB and
> MICIN1/VMIC (via appropriate RC networks) on the A20. The PH00 GPIO is
> wired for headphone plug detection: it reads 0 when nothing's plugged
> in, and 1 when a plug is inserted.
> 
> LINEINL/R and FMINL/R are not connected.

Ah, so there's a design out there with headphone detect. Cool :)

Do you feel like writing the headphone detection code?

Anyway, queued for 4.5, thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com