From patchwork Thu May 8 23:33:00 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 347278 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 E230C1400AC for ; Fri, 9 May 2014 09:33:12 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932080AbaEHXdL (ORCPT ); Thu, 8 May 2014 19:33:11 -0400 Received: from mho-03-ewr.mailhop.org ([204.13.248.66]:60438 "EHLO mho-01-ewr.mailhop.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932185AbaEHXdK (ORCPT ); Thu, 8 May 2014 19:33:10 -0400 Received: from 99-127-230-128.lightspeed.sntcca.sbcglobal.net ([99.127.230.128] helo=atomide.com) by mho-01-ewr.mailhop.org with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.72) (envelope-from ) id 1WiXoG-000CTB-T8; Thu, 08 May 2014 23:33:05 +0000 X-Mail-Handler: Dyn Standard SMTP by Dyn X-Originating-IP: 99.127.230.128 X-Report-Abuse-To: abuse@dyndns.com (see http://www.dyndns.com/services/sendlabs/outbound_abuse.html for abuse reporting information) X-MHO-User: U2FsdGVkX1+oTw2bW0sghA6EkAo63ChG Date: Thu, 8 May 2014 16:33:00 -0700 From: Tony Lindgren To: Tomi Valkeinen Cc: linux-arm-kernel@lists.infradead.org, linux-fbdev@vger.kernel.org, devicetree@vger.kernel.org, linux-omap@vger.kernel.org Subject: Re: [PATCH 3/4] OMAPDSS: panel-sharp-ls037v7dw01: add device tree support Message-ID: <20140508233300.GI2198@atomide.com> References: <1398815562-24113-1-git-send-email-tony@atomide.com> <1398815562-24113-4-git-send-email-tony@atomide.com> <5369EAE7.3030705@ti.com> <20140507150343.GA9502@atomide.com> <536A5920.1020908@ti.com> <20140507175919.GH9502@atomide.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20140507175919.GH9502@atomide.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org * Tony Lindgren [140507 11:00]: > * Tomi Valkeinen [140507 09:03]: > > On 07/05/14 18:03, Tony Lindgren wrote: > > > > > > BTW, I'm also personally fine with all five gpios showing in a single > > > gpios property, I'm not too exited about naming anything in DT.. > > > > I don't have a strong opinion here. I don't have much experience with > > DT, especially with making bindings compatible with other ones. > > > > I'd just forget the simple-panel, and have single gpio array. > > Well if it's a don't care flag for both of us, let's try to use > the existing standard for simple-panel.txt and add mode-gpios > property. I'll post a patch for that. Here's an updated version using enable-gpios, reset-gpios and mode-gpios. So it follows simple-panel.txt and adds mode-gpios that's currently specific to this panel only. Also updated for -EPROBE_DEFER handling, tested that by changing one of the GPIOs to be a twl4030 GPIO. Regards, Tony 8<------------------ From: Tony Lindgren Date: Mon, 28 Apr 2014 20:22:21 -0700 Subject: [PATCH] OMAPDSS: panel-sharp-ls037v7dw01: add device tree support We can pass the GPIO configuration for ls037v7dw01 in a standard gpios property. Signed-off-by: Tony Lindgren --- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html --- /dev/null +++ b/Documentation/devicetree/bindings/panel/sharp,ls037v7dw01.txt @@ -0,0 +1,56 @@ +SHARP LS037V7DW01 TFT-LCD panel + +Required properties: +- compatible: should be "sharp,ls037v7dw01" + +Optional properties: +- enable-gpios: a GPIO spec for the optional enable pin + this pin is the INI pin as specified in the LS037V7DW01.pdf file. +- reset-gpios: a GPIO spec for the optional reset pin + this pin is the RESB pin as specified in the LS037V7DW01.pdf file. +- mode-gpios: a GPIO + ordered MO, LR, and UD as specified in the LS037V7DW01.pdf file. + +This binding is compatible with the simple-panel binding, which is specified +in simple-panel.txt in this directory. + +This panel can have zero to five GPIOs to configure +to change configuration between QVGA and VGA mode +and the scan direction. As these pins can be also +configured with external pulls, all the GPIOs are +considered optional with holes in the array. + +Example when connected to a omap2+ based device: + + lcd0: display { + compatible = "sharp,ls037v7dw01"; + power-supply = <&lcd_3v3>; + enable-gpios = <&gpio5 24 GPIO_ACTIVE_HIGH>; /* gpio152, lcd INI */ + reset-gpios = <&gpio5 27 GPIO_ACTIVE_HIGH>; /* gpio155, lcd RESB */ + mode-gpios = <&gpio5 26 GPIO_ACTIVE_HIGH /* gpio154, lcd MO */ + &gpio1 2 GPIO_ACTIVE_HIGH /* gpio2, lcd LR */ + &gpio1 3 GPIO_ACTIVE_HIGH>; /* gpio3, lcd UD */ + + panel-timing { + clock-frequency = <19200000>; + hback-porch = <28>; + hactive = <480>; + hfront-porch = <1>; + hsync-len = <2>; + vback-porch = <1>; + vactive = <640>; + vfront-porch = <1>; + vsync-len = <1>; + hsync-active = <0>; + vsync-active = <0>; + de-active = <1>; + pixelclk-active = <1>; + }; + + port { + lcd_in: endpoint { + remote-endpoint = <&dpi_out>; + }; + }; + }; + --- a/drivers/video/fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c +++ b/drivers/video/fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c @@ -12,15 +12,19 @@ #include #include #include +#include +#include #include #include - +#include +#include