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clk: qcom: videocc-sm8150: Add runtime PM support

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Add runtime PM support to ensure the supply rails are enabled
when necessary.

Signed-off-by: Satya Priya Kakitapalli <quic_skakitap@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20231201-videocc-8150-v3-4-56bec3a5e443@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Satya Priya Kakitapalli 2023-12-01 15:20:27 +05:30 committed by Bjorn Andersson
parent 71f130c919
commit f6bda45310
1 changed files with 18 additions and 2 deletions
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20
drivers/clk/qcom/videocc-sm8150.c
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@ -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 = {