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pmdomain: arm: Use FLAG_DEV_NAME_FW to ensure unique names

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The domain attributes returned by the perf protocol can end up reporting
identical names across domains, resulting in debugfs node creation failure.
Use the GENPD_FLAG_DEV_NAME_FW to ensure the genpd providers end up with an
unique name.

Logs: [X1E reports 'NCC' for all its scmi perf domains]
debugfs: Directory 'NCC' with parent 'pm_genpd' already present!
debugfs: Directory 'NCC' with parent 'pm_genpd' already present!

Reported-by: Johan Hovold <johan+linaro@kernel.org>
Closes: https://lore.kernel.org/lkml/ZoQjAWse2YxwyRJv@hovoldconsulting.com/
Suggested-by: Ulf Hansson <ulf.hansson@linaro.org>
Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sibi Sankar <quic_sibis@quicinc.com>
Cc: stable@vger.kernel.org
Message-ID: <20241030125512.2884761-6-quic_sibis@quicinc.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Sibi Sankar 2024-10-30 18:25:11 +05:30 committed by Ulf Hansson
parent 899f44531f
commit 0bf0203442
1 changed files with 2 additions and 1 deletions
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3
drivers/pmdomain/arm/scmi_perf_domain.c
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@ -125,7 +125,8 @@ static int scmi_perf_domain_probe(struct scmi_device *sdev)
scmi_pd->ph = ph;
scmi_pd->genpd.name = scmi_pd->info->name;
scmi_pd->genpd.flags = GENPD_FLAG_ALWAYS_ON |
GENPD_FLAG_OPP_TABLE_FW;
GENPD_FLAG_OPP_TABLE_FW |
GENPD_FLAG_DEV_NAME_FW;
scmi_pd->genpd.set_performance_state = scmi_pd_set_perf_state;
scmi_pd->genpd.attach_dev = scmi_pd_attach_dev;
scmi_pd->genpd.detach_dev = scmi_pd_detach_dev;