From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752827AbcICBo0 (ORCPT ); Fri, 2 Sep 2016 21:44:26 -0400 Received: from smtp.csie.ntu.edu.tw ([140.112.30.61]:33566 "EHLO smtp.csie.ntu.edu.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751271AbcICBoZ (ORCPT ); Fri, 2 Sep 2016 21:44:25 -0400 MIME-Version: 1.0 In-Reply-To: <20160902190605.GF6313@lukather> References: <20160901153204.11217-1-maxime.ripard@free-electrons.com> <18951472779805@web6g.yandex.ru> <20160902190605.GF6313@lukather> From: Chen-Yu Tsai Date: Sat, 3 Sep 2016 09:43:59 +0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH 0/7] drm/sun4i: Introduce A33 display driver To: Maxime Ripard Cc: Icenowy Zheng , Daniel Vetter , David Airlie , Thierry Reding , Chen-Yu Tsai , Thomas Petazzoni , "linux-kernel@vger.kernel.org" , "dri-devel@lists.freedesktop.org" , "linux-sunxi@googlegroups.com" , Rob Herring , "linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Sep 3, 2016 at 3:06 AM, Maxime Ripard wrote: > Hi Icenowy, > > On Fri, Sep 02, 2016 at 09:30:05AM +0800, Icenowy Zheng wrote: >> >> >> 01.09.2016, 23:40, "Maxime Ripard" : >> > Hi everyone, >> > >> > This serie introduces the support in the sun4i-drm driver for the A33. >> > >> > Beside the new IPs and special cases for the A33 new IPs, there's >> > nothing really outstanding, and is now at feature parity with the A13. >> >> How can the driver be modified to support LVDS screen? >> >> I have an A33 tablet with a 1024x768 LVDS panel. (iNet D978 Rev2 board, >> which I pushed a dt a few days ago) > > Awesome, I don't have such a screen myself, so feel free to work on > it. > > I haven't looked into the details of LVDS, but it should be something > along the lines of commit 29e57fab97fc ("drm: sun4i: Add RGB output"). The implementation might be along the lines of 1. having multiple output ports, each for a different interface type. (Some platforms go this route) Or 2. having a DT property describe what the output interface is. The RGB/TCON driver would then setup the registers accordingly. ChenYu From mboxrd@z Thu Jan 1 00:00:00 1970 From: wens@csie.org (Chen-Yu Tsai) Date: Sat, 3 Sep 2016 09:43:59 +0800 Subject: [PATCH 0/7] drm/sun4i: Introduce A33 display driver In-Reply-To: <20160902190605.GF6313@lukather> References: <20160901153204.11217-1-maxime.ripard@free-electrons.com> <18951472779805@web6g.yandex.ru> <20160902190605.GF6313@lukather> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Sat, Sep 3, 2016 at 3:06 AM, Maxime Ripard wrote: > Hi Icenowy, > > On Fri, Sep 02, 2016 at 09:30:05AM +0800, Icenowy Zheng wrote: >> >> >> 01.09.2016, 23:40, "Maxime Ripard" : >> > Hi everyone, >> > >> > This serie introduces the support in the sun4i-drm driver for the A33. >> > >> > Beside the new IPs and special cases for the A33 new IPs, there's >> > nothing really outstanding, and is now at feature parity with the A13. >> >> How can the driver be modified to support LVDS screen? >> >> I have an A33 tablet with a 1024x768 LVDS panel. (iNet D978 Rev2 board, >> which I pushed a dt a few days ago) > > Awesome, I don't have such a screen myself, so feel free to work on > it. > > I haven't looked into the details of LVDS, but it should be something > along the lines of commit 29e57fab97fc ("drm: sun4i: Add RGB output"). The implementation might be along the lines of 1. having multiple output ports, each for a different interface type. (Some platforms go this route) Or 2. having a DT property describe what the output interface is. The RGB/TCON driver would then setup the registers accordingly. ChenYu From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chen-Yu Tsai Subject: Re: [PATCH 0/7] drm/sun4i: Introduce A33 display driver Date: Sat, 3 Sep 2016 09:43:59 +0800 Message-ID: References: <20160901153204.11217-1-maxime.ripard@free-electrons.com> <18951472779805@web6g.yandex.ru> <20160902190605.GF6313@lukather> Reply-To: wens-jdAy2FN1RRM@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: Sender: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org In-Reply-To: <20160902190605.GF6313@lukather> List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , To: Maxime Ripard Cc: Icenowy Zheng , Daniel Vetter , David Airlie , Thierry Reding , Chen-Yu Tsai , Thomas Petazzoni , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org" , "linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org" , Rob Herring , "linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org" List-Id: dri-devel@lists.freedesktop.org On Sat, Sep 3, 2016 at 3:06 AM, Maxime Ripard wrote: > Hi Icenowy, > > On Fri, Sep 02, 2016 at 09:30:05AM +0800, Icenowy Zheng wrote: >> >> >> 01.09.2016, 23:40, "Maxime Ripard" : >> > Hi everyone, >> > >> > This serie introduces the support in the sun4i-drm driver for the A33. >> > >> > Beside the new IPs and special cases for the A33 new IPs, there's >> > nothing really outstanding, and is now at feature parity with the A13. >> >> How can the driver be modified to support LVDS screen? >> >> I have an A33 tablet with a 1024x768 LVDS panel. (iNet D978 Rev2 board, >> which I pushed a dt a few days ago) > > Awesome, I don't have such a screen myself, so feel free to work on > it. > > I haven't looked into the details of LVDS, but it should be something > along the lines of commit 29e57fab97fc ("drm: sun4i: Add RGB output"). The implementation might be along the lines of 1. having multiple output ports, each for a different interface type. (Some platforms go this route) Or 2. having a DT property describe what the output interface is. The RGB/TCON driver would then setup the registers accordingly. ChenYu