From patchwork Wed Sep 17 13:08:00 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Zhong X-Patchwork-Id: 390385 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 C87B01400E0 for ; Wed, 17 Sep 2014 23:08:45 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755576AbaIQNIZ (ORCPT ); Wed, 17 Sep 2014 09:08:25 -0400 Received: from mail-pa0-f41.google.com ([209.85.220.41]:53751 "EHLO mail-pa0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755243AbaIQNIY (ORCPT ); Wed, 17 Sep 2014 09:08:24 -0400 Received: by mail-pa0-f41.google.com with SMTP id et14so707813pad.28 for ; Wed, 17 Sep 2014 06:08:23 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=fOO92w9DpnXbwsTDwXXnHAJ1/9KAbidI00zDR0mflUk=; b=RGTkKFr5tI7daZMpSHiXgX5qJTT5gaTgLo1GldisZUwYScaCFEb/oLEErEmlbUd906 wD6ubimCYDGWwpkVu09gPL2cMzLsn4IaBxxjVeCKBis7vDvXCyj9WDb86HmN4VyT2kXn h/iBdeVI8rMnFYOHv7mVknFDFjGFJ9EvMYqJH/g3QEoxlo9kRrrCTWmgiiQ00+2Hwsnw ROw0Y7V6BuknlAaY/eG1hI6E184pMzDg1IsqYqitjMmk3k2B5jLZxGRjjy+f+W3zaAWm 8tLy1s1j6LjzZcLa+WS3pM3zLi7hCmi+4vRyuKEMmErKD1EL4oQftsxZ18qvASwGREIx evCA== X-Received: by 10.70.52.199 with SMTP id v7mr72705300pdo.49.1410959303446; Wed, 17 Sep 2014 06:08:23 -0700 (PDT) Received: from localhost.localdomain ([69.176.84.147]) by mx.google.com with ESMTPSA id nd6sm16951258pbc.28.2014.09.17.06.08.18 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 17 Sep 2014 06:08:22 -0700 (PDT) From: Chris Zhong To: dianders@chromium.org, heiko@sntech.de Cc: huangtao@rock-chips.com, cf@rock-chips.com, zhangqing@rock-chips.com, Chris Zhong , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/2] dt-bindings: add devicetree bindings for st-pwm regulator Date: Wed, 17 Sep 2014 21:08:00 +0800 Message-Id: <1410959280-29662-3-git-send-email-zyw@rock-chips.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1410959280-29662-1-git-send-email-zyw@rock-chips.com> References: <1410959280-29662-1-git-send-email-zyw@rock-chips.com> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Document the st-pwm regulator Signed-off-by: Chris Zhong --- .../devicetree/bindings/regulator/st-pwm.txt | 35 ++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/st-pwm.txt diff --git a/Documentation/devicetree/bindings/regulator/st-pwm.txt b/Documentation/devicetree/bindings/regulator/st-pwm.txt new file mode 100644 index 0000000..38fec1d --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/st-pwm.txt @@ -0,0 +1,35 @@ +st pwm regulator bindings + +Required properties: + - compatible: "pwm-regulator" + - pwms: OF device-tree PWM specification (see PWM binding pwm.txt) + - voltage-table: voltage and duty table, include 2 merbers in each set of + brackets, first one is voltage(unit: uv), the next is duty(unit: percent) + - pwm-reg-period: duration (in nanoseconds) of one cycle + +Any property defined as part of the core regulator binding defined in +regulator.txt can also be used. + +Example: + pwm_regulator { + compatible = "st,b2105-pwm-regulator; + pwms = <&pwm1 0 1000000 0>; + + voltage-table = <1114000 0>, + <1095000 10>, + <1076000 20>, + <1056000 30>, + <1036000 40>, + <1016000 50>; + + pwm-reg-period = <8448>; + regulators { + vdd_logic: pwm-regulator { + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <1016000>; + regulator-max-microvolt = <1114000>; + regulator-name = "vdd_logic"; + }; + }; + };