From: Sebastian Reichel <sre@kernel.org>
To: Sebastian Reichel <sre@kernel.org>,
Marcel Holtmann <marcel@holtmann.org>,
Gustavo Padovan <gustavo@padovan.org>,
Johan Hedberg <johan.hedberg@gmail.com>,
Rob Herring <robh+dt@kernel.org>
Cc: Samuel Thibault <samuel.thibault@ens-lyon.org>,
Pavel Machek <pavel@ucw.cz>, Tony Lindgren <tony@atomide.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.com>, Mark Rutland <mark.rutland@arm.com>,
linux-bluetooth@vger.kernel.org, linux-serial@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCHv2 08/11] dt-bindings: net: bluetooth: Add nokia-bluetooth
Date: Tue, 21 Mar 2017 23:32:13 +0100 [thread overview]
Message-ID: <20170321223216.11733-9-sre@kernel.org> (raw)
In-Reply-To: <20170321223216.11733-1-sre@kernel.org>
Add binding document for serial bluetooth chips using
Nokia H4+ protocol.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
---
Changes since PATCHv1:
* change compatible strings
* mention active high/low state for GPIOs
---
.../devicetree/bindings/net/nokia-bluetooth.txt | 51 ++++++++++++++++++++++
1 file changed, 51 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/nokia-bluetooth.txt
diff --git a/Documentation/devicetree/bindings/net/nokia-bluetooth.txt b/Documentation/devicetree/bindings/net/nokia-bluetooth.txt
new file mode 100644
index 000000000000..42be7dc9a70b
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/nokia-bluetooth.txt
@@ -0,0 +1,51 @@
+Nokia Bluetooth Chips
+---------------------
+
+Nokia phones often come with UART connected bluetooth chips from different
+vendors and modified device API. Those devices speak a protocol named H4+
+(also known as h4p) by Nokia, which is similar to the H4 protocol from the
+Bluetooth standard. In addition to the H4 protocol it specifies two more
+UART status lines for wakeup of UART transceivers to improve power management
+and a few new packet types used to negotiate uart speed.
+
+Required properties:
+
+ - compatible: should contain "nokia,h4p-bluetooth" as well as one of the following:
+ * "brcm,bcm2048-nokia"
+ * "ti,wl1271-bluetooth-nokia"
+ - reset-gpios: GPIO specifier, used to reset the BT module (active low)
+ - bluetooth-wakeup-gpios: GPIO specifier, used to wakeup the BT module (active high)
+ - host-wakeup-gpios: GPIO specifier, used to wakeup the host processor (active high)
+ - clock-names: should be "sysclk"
+ - clocks: should contain a clock specifier for every name in clock-names
+
+Optional properties:
+
+ - None
+
+Example:
+
+/ {
+ /* controlled (enabled/disabled) directly by BT module */
+ bluetooth_clk: vctcxo {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <38400000>;
+ };
+};
+
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2_pins>;
+
+ bluetooth {
+ compatible = "ti,wl1271-bluetooth-nokia", "nokia,h4p-bluetooth";
+
+ reset-gpios = <&gpio1 26 GPIO_ACTIVE_LOW>; /* gpio26 */
+ host-wakeup-gpios = <&gpio4 5 GPIO_ACTIVE_HIGH>; /* gpio101 */
+ bluetooth-wakeup-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>; /* gpio37 */
+
+ clocks = <&bluetooth_clk>;
+ clock-names = "sysclk";
+ };
+};
--
2.11.0
next prev parent reply other threads:[~2017-03-21 22:33 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-21 22:32 [PATCHv2 00/11] Nokia H4+ support Sebastian Reichel
2017-03-21 22:32 ` [PATCHv2 01/11] Bluetooth: hci_uart: add support for word alignment Sebastian Reichel
2017-03-21 22:32 ` [PATCHv2 02/11] Bluetooth: hci_uart: add serdev driver support library Sebastian Reichel
2017-03-22 9:32 ` Pavel Machek
2017-03-21 22:32 ` [PATCHv2 03/11] Bluetooth: hci_serdev: do not open device in hci open Sebastian Reichel
2017-03-21 22:32 ` [PATCHv2 04/11] tty: serial: omap: add UPF_BOOT_AUTOCONF flag for DT init Sebastian Reichel
2017-03-22 9:32 ` Pavel Machek
2017-03-21 22:32 ` [PATCHv2 05/11] serdev: add serdev_device_wait_until_sent Sebastian Reichel
2017-03-22 9:39 ` Pavel Machek
2017-03-21 22:32 ` [PATCHv2 06/11] serdev: implement get/set tiocm Sebastian Reichel
2017-03-22 0:58 ` [PATCHv2.1] " Sebastian Reichel
2017-03-22 9:40 ` Pavel Machek
2017-03-22 21:18 ` Rob Herring
2017-03-21 22:32 ` [PATCHv2 07/11] serdev: add helpers for cts and rts handling Sebastian Reichel
2017-03-22 21:03 ` Rob Herring
2017-03-21 22:32 ` Sebastian Reichel [this message]
2017-03-22 21:04 ` [PATCHv2 08/11] dt-bindings: net: bluetooth: Add nokia-bluetooth Rob Herring
2017-03-21 22:32 ` [PATCHv2 09/11] Bluetooth: add nokia driver Sebastian Reichel
2017-03-22 21:26 ` Rob Herring
2017-03-22 22:48 ` Sebastian Reichel
2017-03-23 7:50 ` Frédéric Danis
2017-03-23 9:07 ` Sebastian Reichel
2017-03-21 22:32 ` [PATCHv2 10/11] ARM: dts: N900: Add bluetooth Sebastian Reichel
2017-03-22 21:06 ` Rob Herring
2017-03-22 23:55 ` Tony Lindgren
2017-03-21 22:32 ` [PATCHv2 11/11] ARM: dts: N9/N950: add bluetooth Sebastian Reichel
2017-03-22 21:06 ` Rob Herring
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