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From:   John Watts <contact@jookia.org>
To:     alsa-devel@alsa-project.org
Cc:     Liam Girdwood <lgirdwood@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        Jaroslav Kysela <perex@perex.cz>,
        Takashi Iwai <tiwai@suse.com>,
        Charles Keepax <ckeepax@opensource.cirrus.com>,
        John Watts <contact@jookia.org>, patches@opensource.cirrus.com,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v4 3/3] ASoC: dt-bindings: wlf,wm8782: Add wlf,fsampen property
Date:   Mon, 18 Sep 2023 23:15:32 +1000
Message-ID: <20230918131532.2257615-4-contact@jookia.org>
In-Reply-To: <20230918131532.2257615-1-contact@jookia.org>
References: <20230918131532.2257615-1-contact@jookia.org>
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The WM8782 can safely support rates higher than 48kHz by changing the
value of the FSAMPEN pin.

Allow specifying the FSAMPEN pin value in the device tree.

Signed-off-by: John Watts <contact@jookia.org>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
---
 Documentation/devicetree/bindings/sound/wm8782.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/wm8782.txt b/Documentation/devicetree/bindings/sound/wm8782.txt
index 256cdec6ec4d..1a28f3280972 100644
--- a/Documentation/devicetree/bindings/sound/wm8782.txt
+++ b/Documentation/devicetree/bindings/sound/wm8782.txt
@@ -8,10 +8,17 @@ Required properties:
  - Vdda-supply : phandle to a regulator for the analog power supply (2.7V - 5.5V)
  - Vdd-supply  : phandle to a regulator for the digital power supply (2.7V - 3.6V)
 
+Optional properties:
+
+ - wlf,fsampen:
+   FSAMPEN pin value, 0 for low, 1 for high, 2 for disconnected.
+   Defaults to 0 if left unspecified.
+
 Example:
 
 wm8782: stereo-adc {
 	compatible = "wlf,wm8782";
 	Vdda-supply = <&vdda_supply>;
 	Vdd-supply = <&vdd_supply>;
+	wlf,fsampen = <2>; /* 192KHz */
 };
-- 
2.42.0