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clk: qcom: gpucc-sm6375: Enable runtime pm

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The GPUCC block on SM6375 is powered by VDD_CX and VDD_GX. If the latter
rail is not online, GX_GDSC will never turn on. Enable runtime pm so that
we can reference VDD_GX from the dt to ensure that.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230529-topic-sm6375gpuccpd-v1-2-8d57c41a6066@linaro.org
This commit is contained in:
Konrad Dybcio
2023-05-29 15:14:24 +02:00
committed by Bjorn Andersson
parent 2f138c667c
commit 097d359c8c
1 changed files with 17 additions and 2 deletions
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19
drivers/clk/qcom/gpucc-sm6375.c
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@@ -7,6 +7,7 @@
#include <linux/clk-provider.h> #include <linux/clk-provider.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/of_device.h> #include <linux/of_device.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h> #include <linux/regmap.h>
#include <dt-bindings/clock/qcom,sm6375-gpucc.h> #include <dt-bindings/clock/qcom,sm6375-gpucc.h>
@@ -434,15 +435,29 @@ MODULE_DEVICE_TABLE(of, gpucc_sm6375_match_table);
static int gpucc_sm6375_probe(struct platform_device *pdev) static int gpucc_sm6375_probe(struct platform_device *pdev)
{ {
struct regmap *regmap; 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, &gpucc_sm6375_desc); regmap = qcom_cc_map(pdev, &gpucc_sm6375_desc);
if (IS_ERR(regmap)) if (IS_ERR(regmap)) {
pm_runtime_put(&pdev->dev);
return PTR_ERR(regmap); return PTR_ERR(regmap);
}
clk_lucid_pll_configure(&gpucc_pll0, regmap, &gpucc_pll0_config); clk_lucid_pll_configure(&gpucc_pll0, regmap, &gpucc_pll0_config);
clk_lucid_pll_configure(&gpucc_pll1, regmap, &gpucc_pll1_config); clk_lucid_pll_configure(&gpucc_pll1, regmap, &gpucc_pll1_config);
return qcom_cc_really_probe(pdev, &gpucc_sm6375_desc, regmap); ret = qcom_cc_really_probe(pdev, &gpucc_sm6375_desc, regmap);
pm_runtime_put(&pdev->dev);
return ret;
} }
static struct platform_driver gpucc_sm6375_driver = { static struct platform_driver gpucc_sm6375_driver = {