From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932218AbdC1QBI (ORCPT ); Tue, 28 Mar 2017 12:01:08 -0400 Received: from mail.kernel.org ([198.145.29.136]:39018 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932152AbdC1QBF (ORCPT ); Tue, 28 Mar 2017 12:01:05 -0400 From: Sebastian Reichel To: Sebastian Reichel , Marcel Holtmann , Gustavo Padovan , Johan Hedberg , Rob Herring Cc: Samuel Thibault , Pavel Machek , Tony Lindgren , Greg Kroah-Hartman , Jiri Slaby , Mark Rutland , linux-bluetooth@vger.kernel.org, linux-serial@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCHv3 09/10] dt-bindings: net: bluetooth: Add nokia-bluetooth Date: Tue, 28 Mar 2017 17:59:38 +0200 Message-Id: <20170328155939.31566-10-sre@kernel.org> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170328155939.31566-1-sre@kernel.org> References: <20170328155939.31566-1-sre@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add binding document for serial bluetooth chips using Nokia H4+ protocol. Acked-by: Rob Herring Signed-off-by: Sebastian Reichel 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 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sebastian Reichel Subject: [PATCHv3 09/10] dt-bindings: net: bluetooth: Add nokia-bluetooth Date: Tue, 28 Mar 2017 17:59:38 +0200 Message-ID: <20170328155939.31566-10-sre@kernel.org> References: <20170328155939.31566-1-sre@kernel.org> Return-path: In-Reply-To: <20170328155939.31566-1-sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> Sender: linux-bluetooth-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Sebastian Reichel , Marcel Holtmann , Gustavo Padovan , Johan Hedberg , Rob Herring Cc: Samuel Thibault , Pavel Machek , Tony Lindgren , Greg Kroah-Hartman , Jiri Slaby , Mark Rutland , linux-bluetooth-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-serial-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.org Add binding document for serial bluetooth chips using Nokia H4+ protocol. Acked-by: Rob Herring Signed-off-by: Sebastian Reichel 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