Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Sender: tdas=codeaurora.org@mg.codeaurora.org
DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 6EC2EC433C6
From:   Taniya Das <tdas@codeaurora.org>
To:     Stephen Boyd <sboyd@kernel.org>,
        =?UTF-8?q?Michael=20Turquette=20=C2=A0?= <mturquette@baylibre.com>
Cc:     David Brown <david.brown@linaro.org>,
        Rajendra Nayak <rnayak@codeaurora.org>,
        linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org,
        linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org,
        Taniya Das <tdas@codeaurora.org>
Subject: [PATCH v1] clk: qcom: lpasscc: Introduce pm autosuspend for SC7180
Date:   Fri, 20 Nov 2020 22:10:17 +0530
Message-Id: <1605890417-721-1-git-send-email-tdas@codeaurora.org>
Precedence: bulk

The LPASSCC driver's suspend/resume is invoked multiple number of times
and thus allow the device to autosuspend for 500ms.

Signed-off-by: Taniya Das <tdas@codeaurora.org>
---
 drivers/clk/qcom/lpasscorecc-sc7180.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/qcom/lpasscorecc-sc7180.c b/drivers/clk/qcom/lpasscorecc-sc7180.c
index 9081649..2e0ecc3 100644
--- a/drivers/clk/qcom/lpasscorecc-sc7180.c
+++ b/drivers/clk/qcom/lpasscorecc-sc7180.c
@@ -370,7 +370,10 @@ static int lpass_create_pm_clks(struct platform_device *pdev)
 {
 	int ret;

+	pm_runtime_use_autosuspend(&pdev->dev);
+	pm_runtime_set_autosuspend_delay(&pdev->dev, 500);
 	pm_runtime_enable(&pdev->dev);
+
 	ret = devm_add_action_or_reset(&pdev->dev, lpass_pm_runtime_disable, &pdev->dev);
 	if (ret)
 		return ret;
@@ -423,7 +426,12 @@ static int lpass_core_cc_sc7180_probe(struct platform_device *pdev)
 	clk_fabia_pll_configure(&lpass_lpaaudio_dig_pll, regmap,
 				&lpass_lpaaudio_dig_pll_config);

-	return qcom_cc_really_probe(pdev, &lpass_core_cc_sc7180_desc, regmap);
+	ret = qcom_cc_really_probe(pdev, &lpass_core_cc_sc7180_desc, regmap);
+
+	pm_runtime_mark_last_busy(&pdev->dev);
+	pm_runtime_put_autosuspend(&pdev->dev);
+
+	return ret;
 }

 static int lpass_hm_core_probe(struct platform_device *pdev)
--
Qualcomm INDIA, on behalf of Qualcomm Innovation Center, Inc.is a member
of the Code Aurora Forum, hosted by the  Linux Foundation.