From patchwork Tue Aug 20 11:13:20 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aisheng Dong X-Patchwork-Id: 11103615 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C271E1398 for ; Tue, 20 Aug 2019 11:32:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9FAD6205C9 for ; Tue, 20 Aug 2019 11:32:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729723AbfHTLcL (ORCPT ); Tue, 20 Aug 2019 07:32:11 -0400 Received: from inva021.nxp.com ([92.121.34.21]:48886 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729639AbfHTLcL (ORCPT ); Tue, 20 Aug 2019 07:32:11 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 43C012001C6; Tue, 20 Aug 2019 13:32:09 +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 0034420029D; Tue, 20 Aug 2019 13:32:05 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 74D034031D; Tue, 20 Aug 2019 19:31:56 +0800 (SGT) 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 V4 06/11] clk: imx: scu: add runtime pm support Date: Tue, 20 Aug 2019 07:13:20 -0400 Message-Id: <1566299605-15641-7-git-send-email-aisheng.dong@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1566299605-15641-1-git-send-email-aisheng.dong@nxp.com> References: <1566299605-15641-1-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 Cc: Stephen Boyd Cc: Shawn Guo Cc: Sascha Hauer Cc: Michael Turquette Signed-off-by: Dong Aisheng --- ChangeLog: v4: no changes v3: new patch --- drivers/clk/imx/clk-scu.c | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c index 9005584..edc39d7 100644 --- a/drivers/clk/imx/clk-scu.c +++ b/drivers/clk/imx/clk-scu.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include "clk-scu.h" @@ -448,15 +449,32 @@ static int imx_clk_scu_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct imx_scu_clk_node *clk = dev_get_platdata(dev); struct clk_hw *hw; + int ret; + + pm_runtime_set_suspended(dev); + pm_runtime_set_autosuspend_delay(dev, 50); + pm_runtime_use_autosuspend(&pdev->dev); + pm_runtime_enable(dev); + + ret = pm_runtime_get_sync(dev); + if (ret) { + pm_runtime_disable(dev); + return ret; + } - hw = __imx_clk_scu(NULL, clk->name, clk->parents, clk->num_parents, + hw = __imx_clk_scu(dev, clk->name, clk->parents, clk->num_parents, clk->rsrc, clk->clk_type); - if (IS_ERR(hw)) + if (IS_ERR(hw)) { + pm_runtime_disable(dev); return PTR_ERR(hw); + } clk->hw = hw; list_add_tail(&clk->node, &imx_scu_clks[clk->rsrc]); + pm_runtime_mark_last_busy(&pdev->dev); + pm_runtime_put_autosuspend(&pdev->dev); + dev_dbg(dev, "register SCU clock rsrc:%d type:%d\n", clk->rsrc, clk->clk_type);