From patchwork Sun Nov 17 02:40:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sebastian Reichel X-Patchwork-Id: 11248101 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1F9E214DB for ; Sun, 17 Nov 2019 11:44:47 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id ED8722075C for ; Sun, 17 Nov 2019 11:44:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ED8722075C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 285A76E2C4; Sun, 17 Nov 2019 11:44:32 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by gabe.freedesktop.org (Postfix) with ESMTPS id 998966E1F9 for ; Sun, 17 Nov 2019 02:41:51 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: sre) with ESMTPSA id 709E328F857 Received: by earth.universe (Postfix, from userid 1000) id 2A9DF3C0CA8; Sun, 17 Nov 2019 03:41:40 +0100 (CET) From: Sebastian Reichel To: Sebastian Reichel , Laurent Pinchart , Tomi Valkeinen Subject: [RFCv1 28/42] drm/dsi: add MIPI_DSI_MODE_ULPS_IDLE Date: Sun, 17 Nov 2019 03:40:14 +0100 Message-Id: <20191117024028.2233-29-sebastian.reichel@collabora.com> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191117024028.2233-1-sebastian.reichel@collabora.com> References: <20191117024028.2233-1-sebastian.reichel@collabora.com> MIME-Version: 1.0 X-Mailman-Approved-At: Sun, 17 Nov 2019 11:44:18 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kernel@collabora.com, Tony Lindgren , "H. Nikolaus Schaller" , Merlijn Wajer , Sebastian Reichel , dri-devel@lists.freedesktop.org, linux-omap@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" DSI command mode panels are self-refreshing displays, that can be updated very rarely for static images. For this kind of scenario some panels support, that the DSI bus switches into ULPS mode until the panel needs to be refreshed. This is problematic on some panels, so introduce a flag to signal the DSI host implementation that the panel allows going into ULPS mode. Signed-off-by: Sebastian Reichel --- include/drm/drm_mipi_dsi.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h index 13cf2ae59f6c..5f2e3e6fb013 100644 --- a/include/drm/drm_mipi_dsi.h +++ b/include/drm/drm_mipi_dsi.h @@ -131,6 +131,8 @@ struct mipi_dsi_host *of_find_mipi_dsi_host_by_node(struct device_node *node); #define MIPI_DSI_CLOCK_NON_CONTINUOUS BIT(10) /* transmit data in low power */ #define MIPI_DSI_MODE_LPM BIT(11) +/* allow going into ULPS mode while command mode panel is not updated */ +#define MIPI_DSI_MODE_ULPS_IDLE BIT(12) enum mipi_dsi_pixel_format { MIPI_DSI_FMT_RGB888,