From patchwork Mon May 15 09:49:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shuijing Li X-Patchwork-Id: 13241217 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 86ED8C77B7D for ; Mon, 15 May 2023 10:11:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=JF+VZHfxMGaQV7jHNjhwO8T3DVyFhTc2WJXf1z7kbXI=; b=PolqlP0p47Fkdt Wpe77el0hURslexw90uXAphcSjRIChz+1gXAWezqzWiC5IIjl72GEIAT6UcbQBRUi65MlTk726vFH WdMiQ32cshN+DD+lrSRJx6wdQ00M+3nHgB3sTcaXoHkAFHlY8C7PjhjvMWlo8WYCn9SDdzqD3KeF5 6hnrpMsN/1l1WvMjMMV+xBOVBGbFtRMgQA5rZcUKbKC7VYMp6B0zWeery7jYJVL7YDSCVk3/M95Dp oaTNyI60og4g/1WA4ytduSLHxIVHZ2xHP5biRV5U+NHAnDCc9Oh/pv5XBftzjBXMN3TWV+Yy+XrGa dpU1l3WE93RjDB6jgS9w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pyVAM-001hN9-2F; Mon, 15 May 2023 10:10:54 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pyVAJ-001hM8-0R; Mon, 15 May 2023 10:10:52 +0000 X-UUID: c2678970f30811ed912e1518a6540028-20230515 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=h57jZNHQL2sJ49TfskDCqEYES50/wJ+p6Hr89+KIa9A=; b=AYMv+Vu5T7HFVdNKn5oi+lQzUxsVw7tiUNkuvKEakcohja2ccT78cGxdmTVHZy1aWMAV2nVKQB7qmBVDTt47+cBEyVVCyBsf4y8Oftsk1FJK9c8BoVvosfX1KrbpV0alJV+vQ456LvG0KkZxAjrUnHBonY6zatHLIzRuRBxDGuo=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.24,REQID:9936c9b6-8fc5-48f8-bd6d-50378a1d57ca,IP:0,U RL:0,TC:0,Content:-5,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:-5 X-CID-META: VersionHash:178d4d4,CLOUDID:8257da6b-2f20-4998-991c-3b78627e4938,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:11|1,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-UUID: c2678970f30811ed912e1518a6540028-20230515 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 432470605; Mon, 15 May 2023 03:10:46 -0700 Received: from mtkmbs13n2.mediatek.inc (172.21.101.194) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Mon, 15 May 2023 17:49:41 +0800 Received: from mszsdhlt06.gcn.mediatek.inc (10.16.6.206) by mtkmbs13n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Mon, 15 May 2023 17:49:40 +0800 From: Shuijing Li To: , , , , , , CC: , , , , , Shuijing Li , Xinlei Lee Subject: [PATCH v4 2/2] drm/panel: boe-tv101wum-nl6: Fine tune the panel power sequence Date: Mon, 15 May 2023 17:49:55 +0800 Message-ID: <20230515094955.15982-3-shuijing.li@mediatek.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230515094955.15982-1-shuijing.li@mediatek.com> References: <20230515094955.15982-1-shuijing.li@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230515_031051_182187_A77F0590 X-CRM114-Status: GOOD ( 11.14 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org For "boe,tv105wum-nw0" this special panel, it is stipulated in the panel spec that MIPI needs to keep the LP11 state before the lcm_reset pin is pulled high. Signed-off-by: Shuijing Li Signed-off-by: Xinlei Lee Reviewed-by: AngeloGioacchino Del Regno --- drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c index a5652d38acda..64e462f49c60 100644 --- a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c +++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c @@ -36,6 +36,7 @@ struct panel_desc { const struct panel_init_cmd *init_cmds; unsigned int lanes; bool discharge_on_disable; + bool lp11_before_reset; }; struct boe_panel { @@ -1365,6 +1366,10 @@ static int boe_panel_prepare(struct drm_panel *panel) usleep_range(10000, 11000); + if (boe->desc->lp11_before_reset) { + mipi_dsi_dcs_nop(boe->dsi); + usleep_range(1000, 2000); + } gpiod_set_value(boe->enable_gpio, 1); usleep_range(1000, 2000); gpiod_set_value(boe->enable_gpio, 0); @@ -1591,6 +1596,7 @@ static const struct panel_desc boe_tv105wum_nw0_desc = { .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE | MIPI_DSI_MODE_LPM, .init_cmds = boe_init_cmd, + .lp11_before_reset = true, }; static const struct drm_display_mode starry_qfh032011_53g_default_mode = {