From: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
To: Marcel Holtmann <marcel@holtmann.org>,
Johan Hedberg <johan.hedberg@gmail.com>,
Rob Herring <robh+dt@kernel.org>
Cc: linux-bluetooth@vger.kernel.org, dianders@chromium.org,
Abhishek Pandit-Subedi <abhishekpandit@chromium.org>,
devicetree@vger.kernel.org,
"David S. Miller" <davem@davemloft.net>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Ondrej Jirman <megous@megous.com>,
Mark Rutland <mark.rutland@arm.com>, Chen-Yu Tsai <wens@csie.org>
Subject: [PATCH v5 3/4] dt-bindings: net: broadcom-bluetooth: Add pcm config
Date: Thu, 14 Nov 2019 18:10:07 -0800 [thread overview]
Message-ID: <20191114180959.v5.3.I18b06235e381accea1c73aa2f9db358645d9f201@changeid> (raw)
In-Reply-To: <20191115021008.32926-1-abhishekpandit@chromium.org>
Add documentation for pcm parameters.
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
---
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None
.../bindings/net/broadcom-bluetooth.txt | 20 +++++++++++-
include/dt-bindings/bluetooth/brcm.h | 32 +++++++++++++++++++
2 files changed, 51 insertions(+), 1 deletion(-)
create mode 100644 include/dt-bindings/bluetooth/brcm.h
diff --git a/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt b/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt
index c749dc297624..a92da31daa79 100644
--- a/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt
+++ b/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt
@@ -29,10 +29,22 @@ 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: PCM, Transport, Codec, I2S
+ This value must be set in order for the latter
+ properties to take effect.
+ - brcm,bt-pcm-interface-rate: 128KBps, 256KBps, 512KBps, 1024KBps, 2048KBps
+ - brcm,bt-pcm-frame-type: short, long
+ - brcm,bt-pcm-sync-mode: slave, master
+ - brcm,bt-pcm-clock-mode: slave, master
+
+See include/dt-bindings/bluetooth/brcm.h for SCO/PCM parameters. The default
+value for all these values are 0 (except for brcm,bt-sco-routing which requires
+a value) if you choose to leave it out.
Example:
+#include <dt-bindings/bluetooth/brcm.h>
+
&uart2 {
pinctrl-names = "default";
pinctrl-0 = <&uart2_pins>;
@@ -40,5 +52,11 @@ Example:
bluetooth {
compatible = "brcm,bcm43438-bt";
max-speed = <921600>;
+
+ brcm,bt-sco-routing = <BRCM_SCO_ROUTING_TRANSPORT>;
+ brcm,bt-pcm-interface-rate = <BRCM_PCM_IF_RATE_512KBPS>;
+ brcm,bt-pcm-frame-type = <BRCM_PCM_FRAME_TYPE_SHORT>;
+ brcm,bt-pcm-sync-mode = <BRCM_PCM_SYNC_MODE_MASTER>;
+ brcm,bt-pcm-clock-mode = <BRCM_PCM_CLOCK_MODE_MASTER>;
};
};
diff --git a/include/dt-bindings/bluetooth/brcm.h b/include/dt-bindings/bluetooth/brcm.h
new file mode 100644
index 000000000000..8b86f90d7dd2
--- /dev/null
+++ b/include/dt-bindings/bluetooth/brcm.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
+/*
+ * This header provides constants for Broadcom bluetooth dt-bindings.
+ */
+#ifndef _DT_BINDINGS_BLUETOOTH_BRCM_H
+#define _DT_BINDINGS_BLUETOOTH_BRCM_H
+
+#define BRCM_BT_SCO_ROUTING_PCM 0
+#define BRCM_BT_SCO_ROUTING_TRANSPORT 1
+#define BRCM_BT_SCO_ROUTING_CODEC 2
+#define BRCM_BT_SCO_ROUTING_I2S 3
+
+/* Default is 128KBPs */
+#define BRCM_BT_PCM_INTERFACE_RATE_128KBPS 0
+#define BRCM_BT_PCM_INTERFACE_RATE_256KBPS 1
+#define BRCM_BT_PCM_INTERFACE_RATE_512KBPS 2
+#define BRCM_BT_PCM_INTERFACE_RATE_1024KBPS 3
+#define BRCM_BT_PCM_INTERFACE_RATE_2048KBPS 4
+
+/* Default should be short */
+#define BRCM_BT_PCM_FRAME_TYPE_SHORT 0
+#define BRCM_BT_PCM_FRAME_TYPE_LONG 1
+
+/* Default should be master */
+#define BRCM_BT_PCM_SYNC_MODE_SLAVE 0
+#define BRCM_BT_PCM_SYNC_MODE_MASTER 1
+
+/* Default should be master */
+#define BRCM_BT_PCM_CLOCK_MODE_SLAVE 0
+#define BRCM_BT_PCM_CLOCK_MODE_MASTER 1
+
+#endif /* _DT_BINDINGS_BLUETOOTH_BRCM_H */
--
2.24.0.432.g9d3f5f5b63-goog
next prev parent reply other threads:[~2019-11-15 2:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-15 2:10 [PATCH v5 0/4] Bluetooth: hci_bcm: Additional changes for BCM4354 support Abhishek Pandit-Subedi
2019-11-15 2:10 ` [PATCH v5 1/4] Bluetooth: hci_bcm: Disallow set_baudrate for BCM4354 Abhishek Pandit-Subedi
2019-11-15 7:59 ` Marcel Holtmann
2019-11-15 2:10 ` [PATCH v5 2/4] Bluetooth: btbcm: Support pcm configuration Abhishek Pandit-Subedi
2019-11-15 7:54 ` Marcel Holtmann
2019-11-15 2:10 ` Abhishek Pandit-Subedi [this message]
2019-11-15 8:01 ` [PATCH v5 3/4] dt-bindings: net: broadcom-bluetooth: Add pcm config Marcel Holtmann
2019-11-15 2:10 ` [PATCH v5 4/4] Bluetooth: hci_bcm: Support pcm params in dts Abhishek Pandit-Subedi
2019-11-15 8:04 ` Marcel Holtmann
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