lkml.org 
[lkml]   [2023]   [Nov]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH V2 4/4] clk: qcom: videocc-sm8150: Add runtime PM support
Date
Add runtime PM support to ensure the supply rails are enabled
when necessary.

Signed-off-by: Satya Priya Kakitapalli <quic_skakitap@quicinc.com>
---
Changes since v1:
- None.

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..b57df5ff96c4 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(&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(&pdev->dev);
+
+ return ret;
}

static struct platform_driver video_cc_sm8150_driver = {
--
2.25.1
\
 
 \ /
  Last update: 2023-11-20 14:04    [W:0.111 / U:0.020 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site