From patchwork Tue Jun 14 11:46:37 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yakir Yang X-Patchwork-Id: 9175615 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id BE3626075D for ; Tue, 14 Jun 2016 11:47:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B000625EF7 for ; Tue, 14 Jun 2016 11:47:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A4ADE280E0; Tue, 14 Jun 2016 11:47:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6229925EF7 for ; Tue, 14 Jun 2016 11:47:15 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D552B6E737; Tue, 14 Jun 2016 11:47:07 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from lucky1.263xmail.com (lucky1.263xmail.com [211.157.147.130]) by gabe.freedesktop.org (Postfix) with ESMTPS id 381CD6E734 for ; Tue, 14 Jun 2016 11:46:44 +0000 (UTC) Received: from ykk?rock-chips.com (unknown [192.168.167.232]) by lucky1.263xmail.com (Postfix) with SMTP id 9D61B1EE5F3; Tue, 14 Jun 2016 19:46:39 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 1 X-MAIL-DELIVERY: 0 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id C36763BB7; Tue, 14 Jun 2016 19:46:37 +0800 (CST) X-RL-SENDER: ykk@rock-chips.com X-FST-TO: yzq@rock-chips.com X-SENDER-IP: 103.29.142.67 X-LOGIN-NAME: ykk@rock-chips.com X-UNIQUE-TAG: X-ATTACHMENT-NUM: 0 X-SENDER: ykk@rock-chips.com X-DNS-TYPE: 0 Received: from localhost.localdomain (unknown [103.29.142.67]) by smtp.263.net (Postfix) whith ESMTP id 425CW4P7K; Tue, 14 Jun 2016 19:46:40 +0800 (CST) From: Yakir Yang To: Mark Yao , Inki Dae , Jingoo Han , Heiko Stuebner Subject: [PATCH v3 09/10] drm/rockchip: analogix_dp: update the comments about why need to hardcode VOP output mode Date: Tue, 14 Jun 2016 19:46:37 +0800 Message-Id: <1465904797-1117-1-git-send-email-ykk@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1465904718-663-1-git-send-email-ykk@rock-chips.com> References: <1465904718-663-1-git-send-email-ykk@rock-chips.com> Cc: Krzysztof Kozlowski , linux-samsung-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, daniel.vetter@ffwll.ch, emil.l.velikov@gmail.com, dianders@chromium.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Javier Martinez Canillas , Tomasz Figa , =?UTF-8?q?St=C3=A9phane=20Marchesin?= , Thierry Reding , Dan Carpenter X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP The hardware IC designed that VOP must output the RGB10 video format to eDP contoller, and if eDP panel only support RGB8, then eDP contoller should cut down the video data, not via VOP contoller, that's why we need to hardcode the VOP output mode to RGA10 here. Signed-off-by: Yakir Yang Acked-by: Mark Yao Reviewed-by: Tomasz Figa --- Changes in v3: - Add the reviewed flag from Tomasz. [https://chromium-review.googlesource.com/#/c/346853/12] - Add the acked flag from Mark. Changes in v2: - new patch in v2 drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 16 +++++----------- 1 file changed, 5 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c index 95a6f60..2ceb3f9 100644 --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c @@ -173,17 +173,11 @@ rockchip_dp_drm_encoder_atomic_check(struct drm_encoder *encoder, int ret; /* - * FIXME(Yakir): driver should configure the CRTC output video - * mode with the display information which indicated the monitor - * support colorimetry. - * - * But don't know why the CRTC driver seems could only output the - * RGBaaa rightly. For example, if connect the "innolux,n116bge" - * eDP screen, EDID would indicated that screen only accepted the - * 6bpc mode. But if I configure CRTC to RGB666 output, then eDP - * screen would show a blue picture (RGB888 show a green picture). - * But if I configure CTRC to RGBaaa, and eDP driver still keep - * RGB666 input video mode, then screen would works prefect. + * The hardware IC designed that VOP must output the RGB10 video + * format to eDP contoller, and if eDP panel only support RGB8, + * then eDP contoller should cut down the video data, not via VOP + * contoller, that's why we need to hardcode the VOP output mode + * to RGA10 here. */ ret = drm_of_encoder_active_endpoint_id(dp->dev->of_node, encoder);