From patchwork Tue Sep 14 09:49:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jammy Huang X-Patchwork-Id: 12492631 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7EDC2C433F5 for ; Tue, 14 Sep 2021 09:51:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 566EB61108 for ; Tue, 14 Sep 2021 09:51:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230369AbhINJwg (ORCPT ); Tue, 14 Sep 2021 05:52:36 -0400 Received: from twspam01.aspeedtech.com ([211.20.114.71]:64250 "EHLO twspam01.aspeedtech.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229906AbhINJwb (ORCPT ); Tue, 14 Sep 2021 05:52:31 -0400 Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 18E9Uefk047557; Tue, 14 Sep 2021 17:30:40 +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, 14 Sep 2021 17:50:30 +0800 From: Jammy Huang To: , , , , , , , , CC: Subject: [PATCH resend] media: aspeed: refine to avoid full jpeg update Date: Tue, 14 Sep 2021 17:49:20 +0800 Message-ID: <20210914094919.3506-1-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 18E9Uefk047557 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The switch of jpeg 420/444 subsampling will update full jpeg header for aspeed now. Just update the 420/444 subsampling part of jpeg header is fine. Signed-off-by: Jammy Huang --- resend the patch becuase cc-list isn't complete. drivers/media/platform/aspeed-video.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c index 3c90f3f3cf14..8b3939b8052d 100644 --- a/drivers/media/platform/aspeed-video.c +++ b/drivers/media/platform/aspeed-video.c @@ -401,6 +401,21 @@ static void aspeed_video_init_jpeg_table(u32 *table, bool yuv420) } } +// just update jpeg dct table per 420/444 +static void aspeed_video_update_jpeg_table(u32 *table, bool yuv420) +{ + int i; + unsigned int base; + + for (i = 0; i < ASPEED_VIDEO_JPEG_NUM_QUALITIES; i++) { + base = 256 * i; /* AST HW requires this header spacing */ + base += ASPEED_VIDEO_JPEG_HEADER_SIZE + + ASPEED_VIDEO_JPEG_DCT_SIZE; + + table[base + 2] = (yuv420) ? 0x00220103 : 0x00110103; + } +} + static void aspeed_video_update(struct aspeed_video *video, u32 reg, u32 clear, u32 bits) { @@ -1274,7 +1289,7 @@ static void aspeed_video_update_jpeg_quality(struct aspeed_video *video) static void aspeed_video_update_subsampling(struct aspeed_video *video) { if (video->jpeg.virt) - aspeed_video_init_jpeg_table(video->jpeg.virt, video->yuv420); + aspeed_video_update_jpeg_table(video->jpeg.virt, video->yuv420); if (video->yuv420) aspeed_video_update(video, VE_SEQ_CTRL, 0, VE_SEQ_CTRL_YUV420);