From patchwork Mon Jul 15 15:27:00 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 2827618 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 1AB1FC0AB2 for ; Mon, 15 Jul 2013 15:28:39 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E1C7120286 for ; Mon, 15 Jul 2013 15:28:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AA00120283 for ; Mon, 15 Jul 2013 15:28:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932703Ab3GOP1Z (ORCPT ); Mon, 15 Jul 2013 11:27:25 -0400 Received: from mail.free-electrons.com ([94.23.35.102]:58111 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932670Ab3GOP1Y (ORCPT ); Mon, 15 Jul 2013 11:27:24 -0400 Received: by mail.free-electrons.com (Postfix, from userid 106) id 4BC369EB; Mon, 15 Jul 2013 17:27:23 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-7.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from localhost (col31-4-88-188-83-94.fbx.proxad.net [88.188.83.94]) by mail.free-electrons.com (Postfix) with ESMTPSA id A425C7AB; Mon, 15 Jul 2013 17:27:12 +0200 (CEST) From: Maxime Ripard To: Andrew Morton Cc: Alexandre Belloni , hector.palacios@digi.com, Thomas Petazzoni , plagnioj@jcrosoft.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-fbdev@vger.kernel.org, Maxime Ripard Subject: [PATCH 1/3] video: mxsfb: fix color settings for 18bit data bus and 32bpp Date: Mon, 15 Jul 2013 17:27:00 +0200 Message-Id: <1373902022-20439-2-git-send-email-maxime.ripard@free-electrons.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1373902022-20439-1-git-send-email-maxime.ripard@free-electrons.com> References: <1373902022-20439-1-git-send-email-maxime.ripard@free-electrons.com> Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Hector Palacios For a combination of 18bit LCD data bus width and a color mode of 32bpp, the driver was setting the color mapping to rgb666, which is wrong, as the color in memory realy has an rgb888 layout. This patch also removes the setting of flag CTRL_DF24 that makes the driver dimiss the upper 2 bits when handling 32/24bpp colors in a diplay with 18bit data bus width. This flag made true color images display wrong in such configurations. Finally, the color mapping rgb666 has also been removed as nobody is using it and high level applications like Qt5 cannot work with it either. Reference: https://lkml.org/lkml/2013/5/23/220 Signed-off-by: Hector Palacios Acked-by: Juergen Beisert Acked-by: Maxime Ripard Signed-off-by: Maxime Ripard --- drivers/video/mxsfb.c | 26 -------------------------- 1 file changed, 26 deletions(-) diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c index 3ba3771..dc09ebe 100644 --- a/drivers/video/mxsfb.c +++ b/drivers/video/mxsfb.c @@ -239,24 +239,6 @@ static const struct fb_bitfield def_rgb565[] = { } }; -static const struct fb_bitfield def_rgb666[] = { - [RED] = { - .offset = 16, - .length = 6, - }, - [GREEN] = { - .offset = 8, - .length = 6, - }, - [BLUE] = { - .offset = 0, - .length = 6, - }, - [TRANSP] = { /* no support for transparency */ - .length = 0, - } -}; - static const struct fb_bitfield def_rgb888[] = { [RED] = { .offset = 16, @@ -309,9 +291,6 @@ static int mxsfb_check_var(struct fb_var_screeninfo *var, break; case STMLCDIF_16BIT: case STMLCDIF_18BIT: - /* 24 bit to 18 bit mapping */ - rgb = def_rgb666; - break; case STMLCDIF_24BIT: /* real 24 bit */ rgb = def_rgb888; @@ -453,11 +432,6 @@ static int mxsfb_set_par(struct fb_info *fb_info) return -EINVAL; case STMLCDIF_16BIT: case STMLCDIF_18BIT: - /* 24 bit to 18 bit mapping */ - ctrl |= CTRL_DF24; /* ignore the upper 2 bits in - * each colour component - */ - break; case STMLCDIF_24BIT: /* real 24 bit */ break;