From patchwork Fri Jun 26 00:55:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ondrej Jirman X-Patchwork-Id: 198459 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7455AC433E0 for ; Fri, 26 Jun 2020 00:56:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 536FA2081A for ; Fri, 26 Jun 2020 00:56:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=megous.com header.i=@megous.com header.b="N5xMbVdH" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726706AbgFZA4L (ORCPT ); Thu, 25 Jun 2020 20:56:11 -0400 Received: from vps.xff.cz ([195.181.215.36]:45332 "EHLO vps.xff.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725834AbgFZA4L (ORCPT ); Thu, 25 Jun 2020 20:56:11 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megous.com; s=mail; t=1593132968; bh=wLBTfvkPXA92DN0aPa1jL4zdt1fxD/3SPQM5mOVPwyY=; h=From:To:Cc:Subject:Date:References:From; b=N5xMbVdHFKknjrdhPvC1BjB/SvOiGaLTR4EHg08ifBzEVjzR69mq2shPd/w1iLpiO wJB/7mrATY4n9vjxHgjwPtL1lTSZb6hJ8J0aO6JDi1XY9WwU/lTbz8EHr6D8MtFHFv weI+7Vz9h5WiixgyAaXayROEQW+UndJXFLJPqZyY= From: Ondrej Jirman To: linux-sunxi@googlegroups.com, Thierry Reding , Sam Ravnborg , David Airlie , Daniel Vetter , =?utf-8?q?Guido_G=C3=BCnther?= , Purism Kernel Team , Rob Herring , Maxime Ripard , Chen-Yu Tsai , Linus Walleij , Icenowy Zheng Cc: Ondrej Jirman , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Samuel Holland , Martijn Braam , Luca Weiss , Bhushan Shah Subject: [PATCH v5 10/13] drm/panel: st7703: Enter sleep after display off Date: Fri, 26 Jun 2020 02:55:58 +0200 Message-Id: <20200626005601.241022-11-megous@megous.com> In-Reply-To: <20200626005601.241022-1-megous@megous.com> References: <20200626005601.241022-1-megous@megous.com> MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The datasheet suggests to issue sleep in after display off as a part of the panel's shutdown sequence. Signed-off-by: Ondrej Jirman --- drivers/gpu/drm/panel/panel-sitronix-st7703.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7703.c b/drivers/gpu/drm/panel/panel-sitronix-st7703.c index 33611419059a..e771281eb547 100644 --- a/drivers/gpu/drm/panel/panel-sitronix-st7703.c +++ b/drivers/gpu/drm/panel/panel-sitronix-st7703.c @@ -394,8 +394,19 @@ static int st7703_disable(struct drm_panel *panel) { struct st7703 *ctx = panel_to_st7703(panel); struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + int ret; + + ret = mipi_dsi_dcs_set_display_off(dsi); + if (ret < 0) + DRM_DEV_ERROR(ctx->dev, + "Failed to turn off the display: %d\n", ret); - return mipi_dsi_dcs_set_display_off(dsi); + ret = mipi_dsi_dcs_enter_sleep_mode(dsi); + if (ret < 0) + DRM_DEV_ERROR(ctx->dev, + "Failed to enter sleep mode: %d\n", ret); + + return 0; } static int st7703_unprepare(struct drm_panel *panel)