Add runtime PM support to ensure the supply rails are enabled
when necessary.
Signed-off-by: Satya Priya Kakitapalli <quic_skakitap@xxxxxxxxxxx>
---
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
