From patchwork Tue Nov 9 09:54:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jammy Huang X-Patchwork-Id: 12610331 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 01A1DC433EF for ; Tue, 9 Nov 2021 09:55:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CAEBA61055 for ; Tue, 9 Nov 2021 09:55:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243982AbhKIJ61 (ORCPT ); Tue, 9 Nov 2021 04:58:27 -0500 Received: from twspam01.aspeedtech.com ([211.20.114.71]:11880 "EHLO twspam01.aspeedtech.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244998AbhKIJ6R (ORCPT ); Tue, 9 Nov 2021 04:58:17 -0500 Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 1A99VZMQ096262; Tue, 9 Nov 2021 17:31:35 +0800 (GMT-8) (envelope-from jammy_huang@aspeedtech.com) Received: from JammyHuang-PC.aspeed.com (192.168.2.115) by TWMBX02.aspeed.com (192.168.0.24) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 9 Nov 2021 17:54:50 +0800 From: Jammy Huang To: , , , , , , , , Subject: [PATCH] media: aspeed: Fix incorrect resolution detected Date: Tue, 9 Nov 2021 17:54:53 +0800 Message-ID: <20211109095453.12363-1-jammy_huang@aspeedtech.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [192.168.2.115] X-ClientProxiedBy: TWMBX02.aspeed.com (192.168.0.24) To TWMBX02.aspeed.com (192.168.0.24) X-DNSRBL: X-MAIL: twspam01.aspeedtech.com 1A99VZMQ096262 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org During the process of os-installation, detected resolution's height could be less than the correct one. Increase min-required-count of stable signal to fix the problem. Fixes: d2b4387f3bdf ("media: platform: Add Aspeed Video Engine driver") Signed-off-by: Jammy Huang --- drivers/media/platform/aspeed-video.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c index 5da52646b298..625a77ddb479 100644 --- a/drivers/media/platform/aspeed-video.c +++ b/drivers/media/platform/aspeed-video.c @@ -196,6 +196,12 @@ #define VE_INTERRUPT_VSYNC_DESC BIT(11) #define VE_MODE_DETECT 0x30c +#define VE_MODE_DT_HOR_TOLER GENMASK(31, 28) +#define VE_MODE_DT_VER_TOLER GENMASK(27, 24) +#define VE_MODE_DT_HOR_STABLE GENMASK(23, 20) +#define VE_MODE_DT_VER_STABLE GENMASK(19, 16) +#define VE_MODE_DT_EDG_THROD GENMASK(15, 8) + #define VE_MEM_RESTRICT_START 0x310 #define VE_MEM_RESTRICT_END 0x314 @@ -1199,7 +1205,12 @@ static void aspeed_video_init_regs(struct aspeed_video *video) aspeed_video_write(video, VE_SCALING_FILTER3, 0x00200000); /* Set mode detection defaults */ - aspeed_video_write(video, VE_MODE_DETECT, 0x22666500); + aspeed_video_write(video, VE_MODE_DETECT, + FIELD_PREP(VE_MODE_DT_HOR_TOLER, 2) | + FIELD_PREP(VE_MODE_DT_VER_TOLER, 2) | + FIELD_PREP(VE_MODE_DT_HOR_STABLE, 10) | + FIELD_PREP(VE_MODE_DT_VER_STABLE, 10) | + FIELD_PREP(VE_MODE_DT_EDG_THROD, 0x65)); aspeed_video_write(video, VE_BCD_CTRL, 0); }