From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,UNPARSEABLE_RELAY,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 F0B5CC10F13 for ; Mon, 8 Apr 2019 11:56:01 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id C00B22063F for ; Mon, 8 Apr 2019 11:56:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="PCvGA/8J" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C00B22063F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=1rdzfmq7JXS4PV0OGj9R+vzkno3mGaw5FgL93/rRFpE=; b=PCvGA/8JpFsqgn QoCTakM9juxyYAsHMoIINBL2ROfbHs1NFqzuX6Np2GsOgFn5azMHkBhZ/FDGYu43A8uSMK9O975wI 2Fw38+5xXKPsOIl6EGd4fJGekB7T5/rt8FmCWO6yVFTuhrIk+g27YuCoZTND9UO0r8kRAIfKNppc5 JhHxD/YhJrDWHsFdXO/1ZJsT1VjREev2VmGrzIq/M8AEfWi0zEjqqFO+VC/9N4ObTONbi4jW7J68N ufo7zN8aAXzxmVfRaYlHCZ25NXZ4xr/+C6zYpVonitBuWP918hV8+R6AiXQ9gqh4pkK+7VvhxBv44 QXDpLnwtULvaI2fth0Ug==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hDSsU-0002BY-WB; Mon, 08 Apr 2019 11:55:55 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hDSsC-0001m9-2L; Mon, 08 Apr 2019 11:55:37 +0000 X-UUID: 408308bd6a3a42bcb7bbc9247603aefd-20190408 X-UUID: 408308bd6a3a42bcb7bbc9247603aefd-20190408 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1345941687; Mon, 08 Apr 2019 03:55:30 -0800 Received: from mtkmbs03n2.mediatek.inc (172.21.101.182) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 8 Apr 2019 04:55:29 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs03n2.mediatek.inc (172.21.101.182) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 8 Apr 2019 19:55:21 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Mon, 8 Apr 2019 19:55:21 +0800 From: Stu Hsieh To: Mauro Carvalho Chehab , Matthias Brugger Subject: [PATCH 02/14] [media] mtk-mipicsi: add pm function Date: Mon, 8 Apr 2019 19:54:53 +0800 Message-ID: <1554724505-19882-3-git-send-email-stu.hsieh@mediatek.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1554724505-19882-1-git-send-email-stu.hsieh@mediatek.com> References: <1554724505-19882-1-git-send-email-stu.hsieh@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: FB59758C98CE6819ADDFF1D50DAAE8C7381E8E342FB07C671B408C9B57CAD6A42000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190408_045536_115497_38E29B40 X-CRM114-Status: GOOD ( 11.55 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: srv_heupstream@mediatek.com, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, Stu Hsieh , linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org This patch add PM function to enable/disable clk and larb. Signed-off-by: Stu Hsieh --- .../media/platform/mtk-mipicsi/mtk_mipicsi.c | 80 +++++++++++++++++++ 1 file changed, 80 insertions(+) diff --git a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c index 2e6c3073c064..a5ed720df900 100644 --- a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c +++ b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c @@ -465,6 +465,85 @@ static struct soc_camera_host_ops mtk_soc_camera_host_ops = { .set_bus_param = mtk_mipicsi_set_bus_param, }; +static int mtk_mipicsi_pm_suspend(struct device *dev) +{ + struct soc_camera_host *ici = to_soc_camera_host(dev); + struct mtk_mipicsi_dev *mipicsi = NULL; + int ret = 0; + int i = 0; + + mipicsi = container_of(ici, struct mtk_mipicsi_dev, soc_host); + if (mipicsi->soc_host.icd != NULL) { + struct v4l2_subdev *sd = + soc_camera_to_subdev(mipicsi->soc_host.icd); + + ret = v4l2_subdev_call(sd, core, s_power, 0); + if (ret == -ENOIOCTLCMD) + ret = 0; + } + + /* close digtal and analog clock */ + for (i = 0; i < mipicsi->clk_num; ++i) + clk_disable_unprepare(mipicsi->clk[i]); + + if (mipicsi->larb_pdev != NULL) + mtk_smi_larb_put(mipicsi->larb_pdev); + + return ret; +} + +static int mtk_mipicsi_suspend(struct device *dev) +{ + if (pm_runtime_suspended(dev)) + return 0; + + return mtk_mipicsi_pm_suspend(dev); +} + +static int mtk_mipicsi_pm_resume(struct device *dev) +{ + struct soc_camera_host *ici = to_soc_camera_host(dev); + struct mtk_mipicsi_dev *mipicsi = + container_of(ici, struct mtk_mipicsi_dev, soc_host); + int ret = 0; + int i = 0; + + if (mipicsi->soc_host.icd != NULL) { + struct v4l2_subdev *sd = + soc_camera_to_subdev(mipicsi->soc_host.icd); + + ret = v4l2_subdev_call(sd, core, s_power, 1); + if (ret == -ENOIOCTLCMD) + ret = 0; + } + + if (mipicsi->larb_pdev != NULL) { + ret = mtk_smi_larb_get(mipicsi->larb_pdev); + if (ret != 0) + return ret; + } + + /* enable digtal clock */ + for (i = 0; i < mipicsi->clk_num; ++i) + (void)clk_prepare_enable(mipicsi->clk[i]); + + return ret; +} + +static int mtk_mipicsi_resume(struct device *dev) +{ + if (pm_runtime_suspended(dev)) + return 0; + + return mtk_mipicsi_pm_resume(dev); +} + +static const struct dev_pm_ops mtk_mipicsi_pm = { + SET_SYSTEM_SLEEP_PM_OPS(mtk_mipicsi_suspend, mtk_mipicsi_resume) + SET_RUNTIME_PM_OPS(mtk_mipicsi_pm_suspend, + mtk_mipicsi_pm_resume, NULL) +}; + static int seninf_mux_camsv_node_parse(struct mtk_mipicsi_dev *mipicsi, int index) { @@ -757,6 +836,7 @@ static const struct of_device_id mtk_mipicsi_of_match[] = { static struct platform_driver mtk_mipicsi_driver = { .driver = { .name = MTK_MIPICSI_DRV_NAME, + .pm = &mtk_mipicsi_pm, .of_match_table = of_match_ptr(mtk_mipicsi_of_match), }, .probe = mtk_mipicsi_probe, -- 2.18.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel