diff options
| author | Nícolas F. R. A. Prado <nfraprado@collabora.com> | 2024-01-24 23:31:43 +0300 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2024-01-29 08:04:17 +0300 |
| commit | eaffb10b51bf74415c9252fd8fb4dd77122501ee (patch) | |
| tree | 0ce5456e0c1634b3d4aed6f066ba873ce5ec7dae /drivers/cpufreq | |
| parent | 9ac3ebaef3cc43ecd136911c44f1427286ee5a05 (diff) | |
| download | linux-eaffb10b51bf74415c9252fd8fb4dd77122501ee.tar.xz | |
cpufreq: mediatek-hw: Don't error out if supply is not found
devm_regulator_get_optional() returns -ENODEV if no supply can be found.
By introducing its usage, commit 788715b5f21c ("cpufreq: mediatek-hw:
Wait for CPU supplies before probing") caused the driver to fail probe
if no supply was present in any of the CPU DT nodes.
Use devm_regulator_get() instead since the CPUs do require supplies
even if not described in the DT. It will gracefully return a dummy
regulator if none is found in the DT node, allowing probe to succeed.
Fixes: 788715b5f21c ("cpufreq: mediatek-hw: Wait for CPU supplies before probing")
Reported-by: kernelci.org bot <bot@kernelci.org>
Closes: https://linux.kernelci.org/test/case/id/65b0b169710edea22852a3fa/
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/mediatek-cpufreq-hw.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/cpufreq/mediatek-cpufreq-hw.c b/drivers/cpufreq/mediatek-cpufreq-hw.c index a1aa9385980a..8d097dcddda4 100644 --- a/drivers/cpufreq/mediatek-cpufreq-hw.c +++ b/drivers/cpufreq/mediatek-cpufreq-hw.c @@ -312,7 +312,7 @@ static int mtk_cpufreq_hw_driver_probe(struct platform_device *pdev) return dev_err_probe(&pdev->dev, -EPROBE_DEFER, "Failed to get cpu%d device\n", cpu); - cpu_reg = devm_regulator_get_optional(cpu_dev, "cpu"); + cpu_reg = devm_regulator_get(cpu_dev, "cpu"); if (IS_ERR(cpu_reg)) return dev_err_probe(&pdev->dev, PTR_ERR(cpu_reg), "CPU%d regulator get failed\n", cpu); |