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firmware: arm_scmi: Increase performance MAX_OPPS limit to 64

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Some platforms expose more than 32 operating performance points (OPPs)
per performance domain via the SCMI performance protocol, but the
driver currently limits the number of OPPs it can handle to 32 via
MAX_OPPS.

Bump MAX_OPPS to 64 so that these platforms can register all their
performance levels. This is an internal limit in the driver only and
does not affect the SCMI protocol ABI.

64 is chosen as the next power of two above the existing limit.

Signed-off-by: Vivek Aknurwar <vivek.aknurwar@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Alexey Klimov <alexey.klimov@linaro.org>
Message-Id: <20251014073454.461999-1-vivek.aknurwar@oss.qualcomm.com>
(sudeep.holla: Updated commit log to reflect driver limitation rather than spec)
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
This commit is contained in:
Vivek Aknurwar 2025-10-14 00:34:54 -07:00 committed by Sudeep Holla
parent a3c46c82d8
commit 6c2fd7a71e
1 changed files with 1 additions and 1 deletions
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2
drivers/firmware/arm_scmi/perf.c
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@ -27,7 +27,7 @@
/* Updated only after ALL the mandatory features for that version are merged */
#define SCMI_PROTOCOL_SUPPORTED_VERSION 0x40000
#define MAX_OPPS 32
#define MAX_OPPS 64
enum scmi_performance_protocol_cmd {
PERF_DOMAIN_ATTRIBUTES = 0x3,