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Message-ID: <20231201-videocc-8150-v3-4-56bec3a5e443@quicinc.com>
Date: Fri, 1 Dec 2023 15:20:27 +0530
From: Satya Priya Kakitapalli <quic_skakitap@...cinc.com>
To: Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konrad.dybcio@...aro.org>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Jonathan Marek <jonathan@...ek.ca>
CC: Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
<linux-arm-msm@...r.kernel.org>, <linux-clk@...r.kernel.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
"Satya Priya Kakitapalli" <quic_skakitap@...cinc.com>
Subject: [PATCH v3 4/4] clk: qcom: videocc-sm8150: Add runtime PM support
Add runtime PM support to ensure the supply rails are enabled
when necessary.
Signed-off-by: Satya Priya Kakitapalli <quic_skakitap@...cinc.com>
---
drivers/clk/qcom/videocc-sm8150.c | 20 ++++++++++++++++++--
1 file changed, 18 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/qcom/videocc-sm8150.c b/drivers/clk/qcom/videocc-sm8150.c
index 52a9a453a143..f1456eaa87c4 100644
--- a/drivers/clk/qcom/videocc-sm8150.c
+++ b/drivers/clk/qcom/videocc-sm8150.c
@@ -6,6 +6,7 @@
#include <linux/clk-provider.h>
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <dt-bindings/clock/qcom,videocc-sm8150.h>
@@ -240,17 +241,32 @@ MODULE_DEVICE_TABLE(of, video_cc_sm8150_match_table);
static int video_cc_sm8150_probe(struct platform_device *pdev)
{
struct regmap *regmap;
+ int ret;
+
+ ret = devm_pm_runtime_enable(&pdev->dev);
+ if (ret)
+ return ret;
+
+ ret = pm_runtime_resume_and_get(&pdev->dev);
+ if (ret)
+ return ret;
regmap = qcom_cc_map(pdev, &video_cc_sm8150_desc);
- if (IS_ERR(regmap))
+ if (IS_ERR(regmap)) {
+ pm_runtime_put_sync(&pdev->dev);
return PTR_ERR(regmap);
+ }
clk_trion_pll_configure(&video_pll0, regmap, &video_pll0_config);
/* Keep VIDEO_CC_XO_CLK ALWAYS-ON */
regmap_update_bits(regmap, 0x984, 0x1, 0x1);
- return qcom_cc_really_probe(pdev, &video_cc_sm8150_desc, regmap);
+ ret = qcom_cc_really_probe(pdev, &video_cc_sm8150_desc, regmap);
+
+ pm_runtime_put_sync(&pdev->dev);
+
+ return ret;
}
static struct platform_driver video_cc_sm8150_driver = {
--
2.25.1
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