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=-13.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 02999C433E1 for ; Wed, 29 Jul 2020 08:04:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DC33021744 for ; Wed, 29 Jul 2020 08:04:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727041AbgG2IEw (ORCPT ); Wed, 29 Jul 2020 04:04:52 -0400 Received: from inva021.nxp.com ([92.121.34.21]:52738 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727846AbgG2IEw (ORCPT ); Wed, 29 Jul 2020 04:04:52 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 5DA1720014B; Wed, 29 Jul 2020 10:04:50 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 9DCAF200E77; Wed, 29 Jul 2020 10:04:46 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 9C0A64031F; Wed, 29 Jul 2020 10:04:40 +0200 (CEST) From: Dong Aisheng To: linux-clk@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, sboyd@kernel.org, mturquette@baylibre.com, shawnguo@kernel.org, fabio.estevam@nxp.com, linux-imx@nxp.com, kernel@pengutronix.de, Dong Aisheng Subject: [PATCH v7 10/11] clk: imx: clk-imx8qxp-lpcg: add runtime pm support Date: Wed, 29 Jul 2020 16:00:17 +0800 Message-Id: <1596009618-25516-11-git-send-email-aisheng.dong@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1596009618-25516-1-git-send-email-aisheng.dong@nxp.com> References: <1596009618-25516-1-git-send-email-aisheng.dong@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org add runtime pm support Reviewed-by: Stephen Boyd Signed-off-by: Dong Aisheng --- ChangeLog: v5->v7: * no changes v4->v5: * minor err check fix v3->v4: * disable rpm when error out v3: new patch --- drivers/clk/imx/clk-imx8qxp-lpcg.c | 24 +++++++++++++++++++----- 1 file changed, 19 insertions(+), 5 deletions(-) diff --git a/drivers/clk/imx/clk-imx8qxp-lpcg.c b/drivers/clk/imx/clk-imx8qxp-lpcg.c index 1881d7f3ccec..3385de76f6c7 100644 --- a/drivers/clk/imx/clk-imx8qxp-lpcg.c +++ b/drivers/clk/imx/clk-imx8qxp-lpcg.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include "clk-scu.h" @@ -239,6 +240,12 @@ static int imx_lpcg_parse_clks_from_dt(struct platform_device *pdev, return -EINVAL; } + pm_runtime_get_noresume(&pdev->dev); + pm_runtime_set_active(&pdev->dev); + pm_runtime_set_autosuspend_delay(&pdev->dev, 500); + pm_runtime_use_autosuspend(&pdev->dev); + pm_runtime_enable(&pdev->dev); + for (i = 0; i < count; i++) { idx = bit_offset[i] / 4; if (idx > IMX_LPCG_MAX_CLKS) { @@ -248,9 +255,9 @@ static int imx_lpcg_parse_clks_from_dt(struct platform_device *pdev, goto unreg; } - clk_hws[idx] = imx_clk_lpcg_scu(output_names[i], - parent_names[i], 0, base, - bit_offset[i], false); + clk_hws[idx] = imx_clk_lpcg_scu_dev(&pdev->dev, output_names[i], + parent_names[i], 0, base, + bit_offset[i], false); if (IS_ERR(clk_hws[idx])) { dev_warn(&pdev->dev, "failed to register clock %d\n", idx); @@ -261,8 +268,13 @@ static int imx_lpcg_parse_clks_from_dt(struct platform_device *pdev, ret = devm_of_clk_add_hw_provider(&pdev->dev, imx_lpcg_of_clk_src_get, clk_data); - if (!ret) - return 0; + if (ret) + goto unreg; + + pm_runtime_mark_last_busy(&pdev->dev); + pm_runtime_put_autosuspend(&pdev->dev); + + return 0; unreg: while (--i >= 0) { @@ -271,6 +283,8 @@ static int imx_lpcg_parse_clks_from_dt(struct platform_device *pdev, imx_clk_lpcg_scu_unregister(clk_hws[idx]); } + pm_runtime_disable(&pdev->dev); + return ret; } -- 2.23.0