From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joachim Eastwood Subject: [PATCH 2/6] doc: dt: add documentation for lpc1850-scu pinctrl driver Date: Fri, 3 Apr 2015 23:16:03 +0200 Message-ID: <1428095767-6286-3-git-send-email-manabian@gmail.com> References: <1428095767-6286-1-git-send-email-manabian@gmail.com> Return-path: Received: from mail-la0-f54.google.com ([209.85.215.54]:35116 "EHLO mail-la0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752112AbbDCVQo (ORCPT ); Fri, 3 Apr 2015 17:16:44 -0400 In-Reply-To: <1428095767-6286-1-git-send-email-manabian@gmail.com> Sender: linux-gpio-owner@vger.kernel.org List-Id: linux-gpio@vger.kernel.org To: linus.walleij@linaro.org, gnurou@gmail.com, linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: arnd@arndb.de, devicetree@vger.kernel.org, ariel.dalessandro@gmail.com, ezequiel@vanguardiasur.com.ar, Joachim Eastwood Signed-off-by: Joachim Eastwood --- .../bindings/pinctrl/nxp,lpc1850-scu.txt | 57 ++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/nxp,lpc1850-scu.txt diff --git a/Documentation/devicetree/bindings/pinctrl/nxp,lpc1850-scu.txt b/Documentation/devicetree/bindings/pinctrl/nxp,lpc1850-scu.txt new file mode 100644 index 000000000000..b75eaa2517eb --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/nxp,lpc1850-scu.txt @@ -0,0 +1,57 @@ +NXP LPC18xx/43xx SCU pin controller Device Tree Bindings +-------------------------------------------------------- + +Required properties: +- compatible : Should be "nxp,lpc1850-scu" +- reg : Address and length of the register set for the device +- clocks : Clock specifier (see clock bindings for details) + +The lpc1850-scu driver uses the generic pin multiplexing and generic pin +configuration documented in pinctrl-bindings.txt. + +The following generic nodes are supported: + - function + - pins + - bias-disable + - bias-pull-up + - bias-pull-down + - drive-strength + - input-enable + - input-disable + - input-schmitt-enable + - input-schmitt-disable + - slew-rate + +Not all pins support all properties so either refer to the NXP 1850/4350 +user manual or the pin table in the pinctrl-lpc18xx driver for supported +pin properties. + +Example: +pinctrl: scu@40086000 { + compatible = "nxp,lpc1850-scu"; + reg = <0x40086000 0x1000>; + clocks = <&ccu1 CLK_CPU_SCU>; + + i2c0_pins: i2c0-pins { + i2c0_pins_cfg { + pins = "i2c0_scl", "i2c0_sda"; + function = "i2c0"; + input-enable; + }; + }; + + uart0_pins: uart0-pins { + uart0_rx_cfg { + pins = "pf_11"; + function = "uart0"; + bias-disable; + input-enable; + }; + + uart0_tx_cfg { + pins = "pf_10"; + function = "uart0"; + bias-disable; + }; + }; +}; -- 1.8.0