From patchwork Fri Mar 4 10:15:53 2022 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: 12768921 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 E6F0CC433EF for ; Fri, 4 Mar 2022 10:18:45 +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=KUU0XGqkz9c1nP4O9fdIFX+GD//RwIa7H6CIDTw4VQ4=; b=A/jSKk9UhT1Clw 8yjtfX2FiT7bJx8KV7ExoLCTsBV8Mi3JIUKot9WGVaM6qfLg53NXdHLeXLWVF2tzB0G7k2Ejl1SLD qYvzCI/hCGh26DXyxLyPAg56L+16eF8ab8yEWTrcDhjmCYF1PMPjDNgjvdnz3xA3hfEbSIdDCPLK1 UGUiAWrAixoCWdybu0zDm5kqEF4J2SIBaH0idi2EOL+Mo04bXZs4Wt+8MXRfETXnoRNLO9L0nhRlq jbt/5JsOD9Cg88iVfXDEBvzTZvzXscao/G+jNkicV8etDN+0Tei13u1k4tS0xBwhnoQ7hxDB2sPI7 4x1NYlQXVvlij/p0TO3A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nQ50N-009Y6G-VR; Fri, 04 Mar 2022 10:17:48 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nQ50B-009Y49-S1; Fri, 04 Mar 2022 10:17:37 +0000 X-UUID: fda73acb586d4741bbbfef84d9455b23-20220304 X-UUID: fda73acb586d4741bbbfef84d9455b23-20220304 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1952163725; Fri, 04 Mar 2022 03:17:28 -0700 Received: from MTKMBS34N1.mediatek.inc (172.27.4.172) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 4 Mar 2022 02:16:02 -0800 Received: from MTKCAS36.mediatek.inc (172.27.4.186) by MTKMBS34N1.mediatek.inc (172.27.4.172) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 4 Mar 2022 18:16:01 +0800 Received: from mszsdaap41.gcn.mediatek.inc (10.16.6.141) by MTKCAS36.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 4 Mar 2022 18:16:00 +0800 From: To: , , , , CC: , , , , , , , , Xinlei Lee Subject: [PATCH v2, 1/4] drm/mediatek: Adjust the timing of mipi signal from LP00 to LP11 Date: Fri, 4 Mar 2022 18:15:53 +0800 Message-ID: <1646388956-8033-2-git-send-email-xinlei.lee@mediatek.com> X-Mailer: git-send-email 2.6.4 In-Reply-To: <1646388956-8033-1-git-send-email-xinlei.lee@mediatek.com> References: <1646388956-8033-1-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-20220304_021735_917513_C0CE286F X-CRM114-Status: GOOD ( 10.15 ) 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: Jitao Shi Old sequence: 1. Pull the MIPI signal high 2. Delay & Dsi_reset 3. Set the dsi timing register 4. dsi clk & lanes leave ulp mode and enter hs mode New sequence: 1. Set the dsi timing register 2. Pull the MIPI signal high 3. Delay & Dsi_reset 4. dsi clk & lanes leave ulp mode and enter hs mode In the new sequence 2 & 3 & 4 will be moved to dsi_enbale in later patch. Signed-off-by: Jitao Shi Signed-off-by: Xinlei Lee --- drivers/gpu/drm/mediatek/mtk_dsi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c index 5d90d2eb0019..6d7b66d5da42 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -649,14 +649,14 @@ static int mtk_dsi_poweron(struct mtk_dsi *dsi) mtk_dsi_reset_engine(dsi); mtk_dsi_phy_timconfig(dsi); - mtk_dsi_rxtx_control(dsi); - usleep_range(30, 100); - mtk_dsi_reset_dphy(dsi); mtk_dsi_ps_control_vact(dsi); mtk_dsi_set_vm_cmd(dsi); mtk_dsi_config_vdo_timing(dsi); mtk_dsi_set_interrupt_enable(dsi); + mtk_dsi_rxtx_control(dsi); + usleep_range(30, 100); + mtk_dsi_reset_dphy(dsi); mtk_dsi_clk_ulp_mode_leave(dsi); mtk_dsi_lane0_ulp_mode_leave(dsi); mtk_dsi_clk_hs_mode(dsi, 0);