From patchwork Mon May 25 15:34:29 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prabhakar X-Patchwork-Id: 29828 X-Patchwork-Delegate: hverkuil@xs4all.nl Received: from mail.tu-berlin.de ([130.149.7.33]) by www.linuxtv.org with esmtp (Exim 4.72) (envelope-from ) id 1YwuOq-00076o-OJ; Mon, 25 May 2015 17:34:44 +0200 X-tubIT-Incoming-IP: 209.132.180.67 Received: from vger.kernel.org ([209.132.180.67]) by mail.tu-berlin.de (exim-4.76/mailfrontend-8) with esmtp id 1YwuOo-0001Fp-lr; Mon, 25 May 2015 17:34:44 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751096AbbEYPej (ORCPT + 1 other); Mon, 25 May 2015 11:34:39 -0400 Received: from mail-wi0-f172.google.com ([209.85.212.172]:37505 "EHLO mail-wi0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750866AbbEYPeh (ORCPT ); Mon, 25 May 2015 11:34:37 -0400 Received: by wifw1 with SMTP id w1so1296089wif.0 for ; Mon, 25 May 2015 08:34:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=C1wJm26SpVJ7BdytfpeZdYo97Y5tLATg7BT/hyYLag8=; b=tRCv9G5MrLsGx4ZGCJB7S5u3IaVztukM4RS5RckiTvakMh84A/6RsQju0n2BjvcBn+ 0mI/VMWSql8QbtHc3eoDy5FCpnsejhV8ByXqXtsgSV/17lgDARrSiSEHAinFPszsMox5 TvIRFUDTmyaqsaKN4mOhgPd75/3XSftlQ6RbE78CYzOsM8KJ+O2i+g6cJPemkm0msbDh 6I+CeCX2Kjj5XpSgwN0vf5OLxO0Oi0LnDdx4TMtzBJAPDUjQ2AHrgbpPkWfjWld7nxVd JWcINBovXwe9zFu2WI9pRylz4uT1vjV8awsOwamccmMtqvOQZgexoOI/c42kQEsPkTVj i3iQ== X-Received: by 10.180.87.105 with SMTP id w9mr32194828wiz.32.1432568076239; Mon, 25 May 2015 08:34:36 -0700 (PDT) Received: from tango-charlie.Home ([94.1.38.236]) by mx.google.com with ESMTPSA id l6sm12404069wib.18.2015.05.25.08.34.34 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 25 May 2015 08:34:35 -0700 (PDT) From: Lad Prabhakar To: LMML , Hans Verkuil Cc: "Lad, Prabhakar" Subject: [PATCH 3/3] media: davinci_vpfe: use monotonic timestamp Date: Mon, 25 May 2015 16:34:29 +0100 Message-Id: <1432568069-11349-4-git-send-email-prabhakar.csengg@gmail.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1432568069-11349-1-git-send-email-prabhakar.csengg@gmail.com> References: <1432568069-11349-1-git-send-email-prabhakar.csengg@gmail.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-PMX-Version: 6.0.0.2142326, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2015.5.25.152416 X-PMX-Spam: Gauge=IIIIIIII, Probability=8%, Report=' FORGED_FROM_GMAIL 0.1, HTML_00_01 0.05, HTML_00_10 0.05, BODYTEXTP_SIZE_3000_LESS 0, BODY_SIZE_1500_1599 0, BODY_SIZE_2000_LESS 0, BODY_SIZE_5000_LESS 0, BODY_SIZE_7000_LESS 0, DKIM_SIGNATURE 0, REFERENCES 0, URI_ENDS_IN_HTML 0, __ANY_URI 0, __CP_MEDIA_BODY 0, __CP_URI_IN_BODY 0, __FRAUD_BODY_WEBMAIL 0, __FRAUD_WEBMAIL 0, __FRAUD_WEBMAIL_FROM 0, __FROM_GMAIL 0, __HAS_FROM 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __HAS_X_MAILING_LIST 0, __IN_REP_TO 0, __MIME_TEXT_ONLY 0, __PHISH_SPEAR_STRUCTURE_1 0, __REFERENCES 0, __SANE_MSGID 0, __SUBJ_ALPHA_END 0, __TO_MALFORMED_2 0, __URI_NO_WWW 0, __URI_NS , __YOUTUBE_RCVD 0' From: "Lad, Prabhakar" V4L2 drivers should use MONOTONIC timestamps instead of gettimeofday, which is affected by daylight savings time. Signed-off-by: Lad, Prabhakar --- drivers/staging/media/davinci_vpfe/vpfe_video.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/media/davinci_vpfe/vpfe_video.c b/drivers/staging/media/davinci_vpfe/vpfe_video.c index 6744192..87048a1 100644 --- a/drivers/staging/media/davinci_vpfe/vpfe_video.c +++ b/drivers/staging/media/davinci_vpfe/vpfe_video.c @@ -470,7 +470,7 @@ void vpfe_video_process_buffer_complete(struct vpfe_video_device *video) { struct vpfe_pipeline *pipe = &video->pipe; - do_gettimeofday(&video->cur_frm->vb.v4l2_buf.timestamp); + v4l2_get_timestamp(&video->cur_frm->vb.v4l2_buf.timestamp); vb2_buffer_done(&video->cur_frm->vb, VB2_BUF_STATE_DONE); if (pipe->state == VPFE_PIPELINE_STREAM_CONTINUOUS) video->cur_frm = video->next_frm; @@ -1337,6 +1337,7 @@ static int vpfe_reqbufs(struct file *file, void *priv, q->ops = &video_qops; q->mem_ops = &vb2_dma_contig_memops; q->buf_struct_size = sizeof(struct vpfe_cap_buffer); + q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; ret = vb2_queue_init(q); if (ret) {