From patchwork Tue Nov 12 14:12:38 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Linus Walleij X-Patchwork-Id: 290663 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id D7F1D2C010A for ; Wed, 13 Nov 2013 01:12:52 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755392Ab3KLOMv (ORCPT ); Tue, 12 Nov 2013 09:12:51 -0500 Received: from mail-we0-f175.google.com ([74.125.82.175]:33223 "EHLO mail-we0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755360Ab3KLOMu (ORCPT ); Tue, 12 Nov 2013 09:12:50 -0500 Received: by mail-we0-f175.google.com with SMTP id t60so677101wes.20 for ; Tue, 12 Nov 2013 06:12:49 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=mPNDcji0nrj8yq02KAn1b7+mpSI0yuBzN6E/LF5kVGI=; b=aOdKVPipkKfqN1NDHBvB0QkgPMQw7t5uJ/WjK4e+SkePrK2MpGI5Vjwc24X+wwQbbP 8bk3X8Q6APxag3+9TvxSuB3Ot9abWF+kekSe/gpfIzUCeamiLEt0fPJ0Pyw49hmjNz8z QqNigcaz6YneD4EvG90opQdGrr+WpWUQL/62ibrQA7CF7/5y+CAZ/r6vaNFdzgYFrqrj f3+66tLWx1gynT9a5sBOywPym0vNXGpKx+lxT/rynYyFfYbjSlOCCC86rqXIyZntcJv4 NLEJBVVPW3QNyE17AQ+mF51CScYWLT5OVcS4o65Dq3rWngwNlQVpoGUhibzsCqypM4VU BEMA== X-Gm-Message-State: ALoCoQmOjJQOk3+pKBoyFAUPrqDDPjzNmf8FL7XMjoxgrXI2oFkfkF3r1KVcKv/Mvf5mgvqr3Qga X-Received: by 10.180.85.42 with SMTP id e10mr16680117wiz.1.1384265569203; Tue, 12 Nov 2013 06:12:49 -0800 (PST) Received: from localhost.localdomain ([85.235.11.236]) by mx.google.com with ESMTPSA id dn2sm44897241wid.1.2013.11.12.06.12.47 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 12 Nov 2013 06:12:48 -0800 (PST) From: Linus Walleij To: devicetree@vger.kernel.org, Samuel Ortiz , Lee Jones Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mark Rutland , Linus Walleij Subject: [PATCH 1/4 v3] mfd: tc3589x: Add device tree bindings Date: Tue, 12 Nov 2013 15:12:38 +0100 Message-Id: <1384265558-10521-1-git-send-email-linus.walleij@linaro.org> X-Mailer: git-send-email 1.8.3.1 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This defines the device tree bindings for the Toshiba TC3589x series of multi-purpose expanders. Only the stuff I can test is defined: GPIO and keypad. Others may implement more subdevices further down the road. This is to complement commit a435ae1d51e2f18414f2a87219fdbe068231e692 "mfd: Enable the tc3589x for Device Tree" which left off the definition of the device tree bindings. Signed-off-by: Linus Walleij --- ChangeLog v2->v3: - Fix the keys/rows bindings to be u32 rather than /bits/ 8, inconsistency noted by Mark Rutland. ChangeLog v1->v2: - Include a verbose example in the DT bindings. - Explain why this is a stand-alone bindings patch. --- Documentation/devicetree/bindings/mfd/tc3589x.txt | 107 ++++++++++++++++++++++ 1 file changed, 107 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/tc3589x.txt diff --git a/Documentation/devicetree/bindings/mfd/tc3589x.txt b/Documentation/devicetree/bindings/mfd/tc3589x.txt new file mode 100644 index 000000000000..c6ac5bd2ce51 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/tc3589x.txt @@ -0,0 +1,107 @@ +* Toshiba TC3589x multi-purpose expander + +The Toshiba TC3589x series are I2C-based MFD devices which may expose the +following built-in devices: gpio, keypad, rotator (vibrator), PWM (for +e.g. LEDs or vibrators) The included models are: + +- TC35890 +- TC35892 +- TC35893 +- TC35894 +- TC35895 +- TC35896 + +Required properties: + - compatible : must be "toshiba,tc35890", "toshiba,tc35892", "toshiba,tc35893", + "toshiba,tc35894", "toshiba,tc35895" or "toshiba,tc35896" + - reg : I2C address of the device + - interrupt-parent : specifies which IRQ controller we're connected to + - interrupts : the interrupt on the parent the controller is connected to + - interrupt-controller : marks the device node as an interrupt controller + - #interrupt-cells : should be <1>, the first cell is the IRQ offset on this + TC3589x interrupt controller. + +Optional nodes: + +- GPIO + This GPIO module inside the TC3589x has 24 (TC35890, TC35892) or 20 + (other models) GPIO lines. + - compatible : must be "toshiba,tc3589x-gpio" + - interrupts : interrupt on the parent, which must be the tc3589x MFD device + - interrupt-controller : marks the device node as an interrupt controller + - #interrupt-cells : should be <2>, the first cell is the IRQ offset on this + TC3589x GPIO interrupt controller, the second cell is the interrupt flags + in accordance with . The following + flags are valid: + - IRQ_TYPE_LEVEL_LOW + - IRQ_TYPE_LEVEL_HIGH + - IRQ_TYPE_EDGE_RISING + - IRQ_TYPE_EDGE_FALLING + - IRQ_TYPE_EDGE_BOTH + - gpio-controller : marks the device node as a GPIO controller + - #gpio-cells : should be <2>, the first cell is the GPIO offset on this + GPIO controller, the second cell is the flags. + +- Keypad + This keypad is the same on all variants, supporting up to 96 different + keys. The linux-specific properties are modeled on those already existing + in other input drivers. + - compatible : must be "toshiba,tc3589x-keypad" + - debounce-delay-ms : debounce interval in milliseconds + - keypad,num-rows : number of rows in the matrix, see + bindings/input/matrix-keymap.txt + - keypad,num-columns : number of columns in the matrix, see + bindings/input/matrix-keymap.txt + - linux,keymap: the definition can be found in + bindings/input/matrix-keymap.txt + - linux,no-autorepeat: do no enable autorepeat feature. + - linux,wakeup: use any event on keypad as wakeup event. + +Example: + +tc35893@44 { + compatible = "toshiba,tc35893"; + reg = <0x44>; + interrupt-parent = <&gpio6>; + interrupts = <26 IRQ_TYPE_EDGE_RISING>; + + interrupt-controller; + #interrupt-cells = <1>; + + tc3589x_gpio { + compatible = "toshiba,tc3589x-gpio"; + interrupts = <0>; + + interrupt-controller; + #interrupt-cells = <2>; + gpio-controller; + #gpio-cells = <2>; + }; + tc3589x_keypad { + compatible = "toshiba,tc3589x-keypad"; + interrupts = <6>; + debounce-delay-ms = <4>; + keypad,num-columns = <8>; + keypad,num-rows = <8>; + linux,no-autorepeat; + linux,wakeup; + linux,keymap = <0x0301006b + 0x04010066 + 0x06040072 + 0x040200d7 + 0x0303006a + 0x0205000e + 0x0607008b + 0x0500001c + 0x0403000b + 0x03040034 + 0x05020067 + 0x0305006c + 0x040500e7 + 0x0005009e + 0x06020073 + 0x01030039 + 0x07060069 + 0x050500d9>; + }; +};