linux-kernel - [PATCH 1/1] firmware: arm_scmi: Increase MAX

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Message-Id: <20251014073454.461999-1-vivek.aknurwar@oss.qualcomm.com>
Date: Tue, 14 Oct 2025 00:34:54 -0700
From: Vivek Aknurwar <vivek.aknurwar@....qualcomm.com>
To: sudeep.holla@....com, cristian.marussi@....com
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, mike.tipton@....qualcomm.com,
        Vivek Aknurwar <vivek.aknurwar@....qualcomm.com>
Subject: [PATCH 1/1] firmware: arm_scmi: Increase MAX_OPPS to 64

Some upcoming SoCs define more than 32 operating performance points (OPPs),
exceeding the current SCMI protocol limit. Increase MAX_OPPS to 64
(next power of 2) to support these configurations.

Signed-off-by: Vivek Aknurwar <vivek.aknurwar@....qualcomm.com>
---
 drivers/firmware/arm_scmi/perf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c
index 683fd9b85c5c..2249ef7fe790 100644
--- a/drivers/firmware/arm_scmi/perf.c
+++ b/drivers/firmware/arm_scmi/perf.c
@@ -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,
-- 
2.34.1