From patchwork Tue Jan 10 05:54:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?WGlubGVpIExlZSAo5p2O5piV56OKKQ==?= X-Patchwork-Id: 13094709 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 C4481C46467 for ; Tue, 10 Jan 2023 06:10:40 +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=dO3BYBPdVPVPgWUE512MD8SEAAaxrS6U6BzYqDbs7SU=; b=ZbN+xQhdsp6jkk TDN2NRq+0zznkxCe774dy5fDvJrk2H0PTv00dmXTCpj7C8GVVo582nTclf3CbPmqzBK/M3bLRSZ2Z 88EJRIHCoAmwg3CErWfTDrddyMCQJ2xg+bT2xU2/XfIzHU5ChHXlQ3R+XigTLwMJdBeZwETFDM+Jc NpHViIJIWrfRclR3LegSbmG1ie478ZqnbtozA9GwwTEo+pVRLWpoAHlRq7nmzrobz9SRSBmEtSb8g TpE0zhecWhd+JYp5YusGVNBHKpJ5XlkNR/f4LoKlg1QVY86WsaZ3AyMCQssbGsWm+Xjpgtowq5uC9 lwcl5cbN5MxnDGN7/c3Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pF7pI-005QpA-UK; Tue, 10 Jan 2023 06:09:37 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pF7pE-005QoB-Ry; Tue, 10 Jan 2023 06:09:34 +0000 X-UUID: 95d9ad4c70bb44efae869521b2e74d85-20230109 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=s5/tOMASlrJlrpdGZBEiIUGnY/yMA8EeWTUgOk0cPbU=; b=JCSBlMIYEOkUjVnVIBGoSKm0ZAfp/jJOo7IkIy3urCgzMujPXuXXpCrCfN6tIXlNLSO3EwYa+QdZyaH3DZjudaytDiE6E++PEZGAv3XwLkeosoDMfQEiNSCaOV7wslSFvMea+W3LkNbaj+zRCw/fEB8NPWvFUuEhUYAmwxRXP1Q=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.17,REQID:cf8170e9-0dfa-4f54-a40d-fbe0a7e4eee6,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:543e81c,CLOUDID:e57b5bf5-ff42-4fb0-b929-626456a83c14,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0 X-CID-BVR: 0 X-UUID: 95d9ad4c70bb44efae869521b2e74d85-20230109 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 107853615; Mon, 09 Jan 2023 23:06:07 -0700 Received: from mtkmbs11n1.mediatek.inc (172.21.101.185) by mtkmbs11n1.mediatek.inc (172.21.101.185) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.15; Tue, 10 Jan 2023 13:55:02 +0800 Received: from mszsdaap41.gcn.mediatek.inc (10.16.6.141) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.15 via Frontend Transport; Tue, 10 Jan 2023 13:55:01 +0800 From: To: , , , , , , , , CC: , , , , , Xinlei Lee Subject: [PATCH v2 3/3] drm/panel: boe-tv101wum-nl6: Fine tune the panel power sequence Date: Tue, 10 Jan 2023 13:54:53 +0800 Message-ID: <1673330093-6771-4-git-send-email-xinlei.lee@mediatek.com> X-Mailer: git-send-email 2.6.4 In-Reply-To: <1673330093-6771-1-git-send-email-xinlei.lee@mediatek.com> References: <1673330093-6771-1-git-send-email-xinlei.lee@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-20230109_220932_942447_992D1565 X-CRM114-Status: GOOD ( 12.45 ) 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 From: Xinlei Lee 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: Xinlei Lee --- 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 f0093035f1ff..67df61de64ae 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 { @@ -1261,6 +1262,10 @@ 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); @@ -1487,6 +1492,7 @@ 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 int boe_panel_get_modes(struct drm_panel *panel,