[PATCH] firmware: smccc: default ARM_SMCCC_SOC_ID to disabled

Sudeep Holla sudeep.holla at arm.com
Wed Jan 14 13:07:09 PST 2026


On Tue, Jan 13, 2026 at 01:34:05PM +0530, Mukesh Ojha wrote:
> On Mon, Jan 12, 2026 at 10:24:06PM -0800, Satya Durga Srinivasu Prabhala wrote:
> > The ARM SMCCC SoC ID driver is currently enabled by default and publishes
> > SMCCC-provided SoC identification into /sys/bus/soc/devices/socX/*.
> > 
> > On platforms where a vendor SoC driver already exposes widely-consumed
> > attributes (e.g. Qualcomm socinfo [1]), enabling the SMCCC driver changes
> > the format of /sys/devices/soc0/soc_id (e.g. "jep106:XXYY:ZZZZ" instead
> > of a vendor logical ID like "519") and breaks existing userspace consumers.
> > 
> > Flip the default of CONFIG_ARM_SMCCC_SOC_ID from y to n. Platforms that
> > prefer SMCCC over a vendor driver can explicitly enable it.
> > 
> > This avoids unexpected format changes and keeps the generic SoC sysfs
> > stable on systems that rely on vendor-specific identification.
> > 
> > [1]
> > Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/soc/qcom/socinfo.c
> > 
> > Signed-off-by: Satya Durga Srinivasu Prabhala <satya.prabhala at oss.qualcomm.com>
> 
> Fixes tag ??
> 

Sorry which commit is broken ?

-- 
Regards,
Sudeep



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