From patchwork Wed Jul 1 10:31:23 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Ond=C5=99ej_Jirman?= X-Patchwork-Id: 11637959 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 3B3C16C1 for ; Thu, 2 Jul 2020 07:24:53 +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 1A65B20884 for ; Thu, 2 Jul 2020 07:24:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=megous.com header.i=@megous.com header.b="d5cAgCYY" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1A65B20884 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=megous.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 473366E514; Thu, 2 Jul 2020 07:24:24 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from vps.xff.cz (vps.xff.cz [195.181.215.36]) by gabe.freedesktop.org (Postfix) with ESMTPS id 67EEC6E1D7 for ; Wed, 1 Jul 2020 10:31:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megous.com; s=mail; t=1593599493; bh=DvITnUxZVcnsKisp8VN9mijP099DQ56ot4eLoJf/s34=; h=From:To:Cc:Subject:Date:References:From; b=d5cAgCYYo9BAdY5QF30KJ1wlKezbARyhLlDubu3e8Gp7xC35/Tmapd+SZ3Jdfds0Y oKNP4pXz8szJTwMhX+Ci+fqoTE38t29pFNEuQbJH5CKr0VeHC3vpHg8JbSUgyfDIow eqnKaRNKDbjux/3AJj1+vhLI0A6UAY9Qcu60zQDs= 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 Subject: [PATCH v6 10/13] drm/panel: st7703: Enter sleep after display off Date: Wed, 1 Jul 2020 12:31:23 +0200 Message-Id: <20200701103126.1512615-11-megous@megous.com> In-Reply-To: <20200701103126.1512615-1-megous@megous.com> References: <20200701103126.1512615-1-megous@megous.com> MIME-Version: 1.0 X-Mailman-Approved-At: Thu, 02 Jul 2020 07:24:22 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ondrej Jirman , devicetree@vger.kernel.org, Samuel Holland , Bhushan Shah , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Luca Weiss , Martijn Braam , linux-arm-kernel@lists.infradead.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The datasheet suggests to issue sleep in after display off as a part of the panel's shutdown sequence. Signed-off-by: Ondrej Jirman Reviewed-by: Linus Walleij --- 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 5cd5503f894f..0c4167994d01 100644 --- a/drivers/gpu/drm/panel/panel-sitronix-st7703.c +++ b/drivers/gpu/drm/panel/panel-sitronix-st7703.c @@ -395,8 +395,19 @@ 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)