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Qualcomm clock fixes for v6.9

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The introduction of support for the external VDD_GFX supply in SA8295P
 ADP unearthed a lockdep problem in the GDSC code w.r.t regulator
 supplies. Make the regulator optional, to avoid creating a dummy
 regulator, on those boards that doesn't use this. While not solving the
 root cause of the problem, it reduces the impact of the lockdep warning
 - and it avoids wasting resources.
 
 Refactoring of the RPM clock driver accidentally removed num_clks from
 msm8976. Reintroduce this to get the clocks back.
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Merge tag 'qcom-clk-fixes-for-6.9' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into clk-fixes

Pull Qualcomm clk driver fixes from Bjorn Andersson:

The introduction of support for the external VDD_GFX supply in SA8295P
ADP unearthed a lockdep problem in the GDSC code w.r.t regulator
supplies. Make the regulator optional, to avoid creating a dummy
regulator, on those boards that doesn't use this. While not solving the
root cause of the problem, it reduces the impact of the lockdep warning
- and it avoids wasting resources.

Refactoring of the RPM clock driver accidentally removed num_clks from
msm8976. Reintroduce this to get the clocks back.

* tag 'qcom-clk-fixes-for-6.9' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  clk: qcom: smd-rpm: Restore msm8976 num_clk
  clk: qcom: gdsc: treat optional supplies as optional
This commit is contained in:
Stephen Boyd 2024-04-22 11:59:01 -07:00
commit f8981b0d52
2 changed files with 9 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/clk/qcom/clk-smd-rpm.c
View File

@ -768,6 +768,7 @@ static struct clk_smd_rpm *msm8976_clks[] = {
static const struct rpm_smd_clk_desc rpm_clk_msm8976 = {
.clks = msm8976_clks,
.num_clks = ARRAY_SIZE(msm8976_clks),
.icc_clks = bimc_pcnoc_snoc_smmnoc_icc_clks,
.num_icc_clks = ARRAY_SIZE(bimc_pcnoc_snoc_smmnoc_icc_clks),
};

11
drivers/clk/qcom/gdsc.c
View File

@ -487,9 +487,14 @@ int gdsc_register(struct gdsc_desc *desc,
if (!scs[i] || !scs[i]->supply)
continue;
scs[i]->rsupply = devm_regulator_get(dev, scs[i]->supply);
if (IS_ERR(scs[i]->rsupply))
return PTR_ERR(scs[i]->rsupply);
scs[i]->rsupply = devm_regulator_get_optional(dev, scs[i]->supply);
if (IS_ERR(scs[i]->rsupply)) {
ret = PTR_ERR(scs[i]->rsupply);
if (ret != -ENODEV)
return ret;
scs[i]->rsupply = NULL;
}
}
data->num_domains = num;