From patchwork Fri Apr 3 09:40:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xia Jiang X-Patchwork-Id: 202471 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=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, MIME_BASE64_TEXT, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 5F153C2D0E8 for ; Fri, 3 Apr 2020 09:40:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2C1EE2080C for ; Fri, 3 Apr 2020 09:40:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="mAkq41iZ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403765AbgDCJkq (ORCPT ); Fri, 3 Apr 2020 05:40:46 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:36555 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S2390702AbgDCJkp (ORCPT ); Fri, 3 Apr 2020 05:40:45 -0400 X-UUID: 940d031f705f423cbf2016f97a7028a7-20200403 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=pm/C6wkpcwoRE/CCieW0EFzNKBkWkCFOYLbu5+5Ga74=; b=mAkq41iZCfO1aP0e5kXXhKJUNEhVDFlDH42XUxx+qmD8eyH2bDlrpcMx8fm04xbglvjSiYaYreptPwXv8oFubSz3ekVbqe92azTA97PwTOERvP2VnBmxWHob8h218p9/OuC/KwTYRY9LJpZRc6jYPPiB98jk8OG3TmZnzYCbUic=; X-UUID: 940d031f705f423cbf2016f97a7028a7-20200403 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 1495600782; Fri, 03 Apr 2020 17:40:41 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs05n2.mediatek.inc (172.21.101.140) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 3 Apr 2020 17:40:37 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 3 Apr 2020 17:40:36 +0800 From: Xia Jiang To: Hans Verkuil , Mauro Carvalho Chehab , Rob Herring , Matthias Brugger , Rick Chang CC: , , , , , Marek Szyprowski , Tomasz Figa , , , , , , , Xia Jiang Subject: [PATCH v8 05/14] media: platform: Improve power on and power off flow Date: Fri, 3 Apr 2020 17:40:24 +0800 Message-ID: <20200403094033.8288-6-xia.jiang@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200403094033.8288-1-xia.jiang@mediatek.com> References: <20200403094033.8288-1-xia.jiang@mediatek.com> MIME-Version: 1.0 X-MTK: N Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Call pm_runtime_get_sync() before starting a frame and then pm_runtime_put() after completing it. This can save power for the time between processing two frames. Signed-off-by: Xia Jiang --- .../media/platform/mtk-jpeg/mtk_jpeg_core.c | 27 +++++-------------- 1 file changed, 6 insertions(+), 21 deletions(-) -- 2.18.0 diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c index a536fa95b3d6..dd5cadd101ef 100644 --- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c +++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c @@ -710,23 +710,6 @@ static struct vb2_v4l2_buffer *mtk_jpeg_buf_remove(struct mtk_jpeg_ctx *ctx, return v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); } -static int mtk_jpeg_start_streaming(struct vb2_queue *q, unsigned int count) -{ - struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(q); - struct vb2_v4l2_buffer *vb; - int ret = 0; - - ret = pm_runtime_get_sync(ctx->jpeg->dev); - if (ret < 0) - goto err; - - return 0; -err: - while ((vb = mtk_jpeg_buf_remove(ctx, q->type))) - v4l2_m2m_buf_done(vb, VB2_BUF_STATE_QUEUED); - return ret; -} - static void mtk_jpeg_stop_streaming(struct vb2_queue *q) { struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(q); @@ -751,8 +734,6 @@ static void mtk_jpeg_stop_streaming(struct vb2_queue *q) while ((vb = mtk_jpeg_buf_remove(ctx, q->type))) v4l2_m2m_buf_done(vb, VB2_BUF_STATE_ERROR); - - pm_runtime_put_sync(ctx->jpeg->dev); } static const struct vb2_ops mtk_jpeg_qops = { @@ -761,7 +742,6 @@ static const struct vb2_ops mtk_jpeg_qops = { .buf_queue = mtk_jpeg_buf_queue, .wait_prepare = vb2_ops_wait_prepare, .wait_finish = vb2_ops_wait_finish, - .start_streaming = mtk_jpeg_start_streaming, .stop_streaming = mtk_jpeg_stop_streaming, }; @@ -812,7 +792,7 @@ static void mtk_jpeg_device_run(void *priv) struct mtk_jpeg_src_buf *jpeg_src_buf; struct mtk_jpeg_bs bs; struct mtk_jpeg_fb fb; - int i; + int i, ret; src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); @@ -832,6 +812,10 @@ static void mtk_jpeg_device_run(void *priv) return; } + ret = pm_runtime_get_sync(jpeg->dev); + if (ret < 0) + goto dec_end; + mtk_jpeg_set_dec_src(ctx, &src_buf->vb2_buf, &bs); if (mtk_jpeg_set_dec_dst(ctx, &jpeg_src_buf->dec_param, &dst_buf->vb2_buf, &fb)) goto dec_end; @@ -957,6 +941,7 @@ static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv) v4l2_m2m_buf_done(src_buf, buf_state); v4l2_m2m_buf_done(dst_buf, buf_state); v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx); + pm_runtime_put_sync(ctx->jpeg->dev); return IRQ_HANDLED; }