linux-kernel - [PATCH v3 4/4] dt-bindings: net: broadcom-bluetooth: Add pcm config

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Date:   Mon, 11 Nov 2019 16:19:49 -0800
From:   Abhishek Pandit-Subedi <abhishekpandit@...omium.org>
To:     Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     linux-bluetooth@...r.kernel.org, dianders@...omium.org,
        Abhishek Pandit-Subedi <abhishekpandit@...omium.org>,
        devicetree@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Ondrej Jirman <megous@...ous.com>,
        Mark Rutland <mark.rutland@....com>,
        Chen-Yu Tsai <wens@...e.org>
Subject: [PATCH v3 4/4] dt-bindings: net: broadcom-bluetooth: Add pcm config

Add documentation for pcm parameters.

Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@...omium.org>

---

Changes in v3:
- Change disallow baudrate setting to return -EBUSY if called before
  ready. bcm_proto is no longer modified and is back to being const.
- Changed btbcm_set_pcm_params to btbcm_set_pcm_int_params
- Changed brcm,sco-routing to brcm,bt-sco-routing

Changes in v2:
- Use match data to disallow baudrate setting
- Parse pcm parameters by name instead of as a byte string
- Fix prefix for dt-bindings commit

 .../devicetree/bindings/net/broadcom-bluetooth.txt    | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt b/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt
index c749dc297624..42fb2fa8143d 100644
--- a/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt
+++ b/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt
@@ -29,6 +29,11 @@ Optional properties:
    - "lpo": external low power 32.768 kHz clock
  - vbat-supply: phandle to regulator supply for VBAT
  - vddio-supply: phandle to regulator supply for VDDIO
+ - brcm,bt-sco-routing: 0-3 (PCM, Transport, Codec, I2S)
+ - brcm,pcm-interface-rate: 0-4 (128KBps, 256KBps, 512KBps, 1024KBps, 2048KBps)
+ - brcm,pcm-frame-type: 0-1 (short, long)
+ - brcm,pcm-sync-mode: 0-1 (slave, master)
+ - brcm,pcm-clock-mode: 0-1 (slave, master)
 
 
 Example:
@@ -40,5 +45,11 @@ Example:
        bluetooth {
                compatible = "brcm,bcm43438-bt";
                max-speed = <921600>;
+
+               brcm,bt-sco-routing = [01];
+               brcm,pcm-interface-rate = [02];
+               brcm,pcm-frame-type = [00];
+               brcm,pcm-sync-mode = [01];
+               brcm,pcm-clock-mode = [01];
        };
 };
-- 
2.24.0.rc1.363.gb1bccd3e3d-goog