linux-kernel - [PATCH 2/5] soundwire: qcom: enable runtime pm before controller is registered

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Date:   Thu,  9 Feb 2023 13:13:33 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     vkoul@...nel.org
Cc:     yung-chuan.liao@...ux.intel.com,
        pierre-louis.bossart@...ux.intel.com, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org, steev@...i.org,
        johan+linaro@...nel.org, quic_bjorande@...cinc.com,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH 2/5] soundwire: qcom: enable runtime pm before controller is registered

Registering controller even before pm runtime is enabled will result
in pm runtime underflow warnings. Fix this by properly moving
the runtime pm enable before registering controller.

Fixes: 74e79da9fd46 ("soundwire: qcom: add runtime pm support")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 drivers/soundwire/qcom.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index 9d8ae77bad0a..b2363839624c 100644
--- a/drivers/soundwire/qcom.c
+++ b/drivers/soundwire/qcom.c
@@ -1417,6 +1417,12 @@ static int qcom_swrm_probe(struct platform_device *pdev)
 		}
 	}
 
+	pm_runtime_set_autosuspend_delay(dev, 3000);
+	pm_runtime_use_autosuspend(dev);
+	pm_runtime_mark_last_busy(dev);
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
+
 	ret = sdw_bus_master_add(&ctrl->bus, dev, dev->fwnode);
 	if (ret) {
 		dev_err(dev, "Failed to register Soundwire controller (%d)\n",
@@ -1435,12 +1441,6 @@ static int qcom_swrm_probe(struct platform_device *pdev)
 		 (ctrl->version >> 24) & 0xff, (ctrl->version >> 16) & 0xff,
 		 ctrl->version & 0xffff);
 
-	pm_runtime_set_autosuspend_delay(dev, 3000);
-	pm_runtime_use_autosuspend(dev);
-	pm_runtime_mark_last_busy(dev);
-	pm_runtime_set_active(dev);
-	pm_runtime_enable(dev);
-
 	/* Clk stop is not supported on WSA Soundwire masters */
 	if (ctrl->version <= 0x01030000) {
 		ctrl->clock_stop_not_supported = true;
-- 
2.21.0