linux-kernel - [PATCH 1/6] coresight: Change syncfreq to be a u8

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Message-Id: <20250811-james-cs-syncfreq-v1-1-b001cd6e3404@linaro.org>
Date: Mon, 11 Aug 2025 10:32:06 +0100
From: James Clark <james.clark@...aro.org>
To: Suzuki K Poulose <suzuki.poulose@....com>, 
 Mike Leach <mike.leach@...aro.org>, 
 Alexander Shishkin <alexander.shishkin@...ux.intel.com>, 
 Jonathan Corbet <corbet@....net>, Leo Yan <leo.yan@....com>
Cc: coresight@...ts.linaro.org, linux-arm-kernel@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org, 
 James Clark <james.clark@...aro.org>
Subject: [PATCH 1/6] coresight: Change syncfreq to be a u8

TRCSYNCPR.PERIOD is the only functional part of TRCSYNCPR and it only
has 5 valid bits so it can be stored in a u8.

Signed-off-by: James Clark <james.clark@...aro.org>
---
 drivers/hwtracing/coresight/coresight-etm4x.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h
index ac649515054d..746627476bd3 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.h
+++ b/drivers/hwtracing/coresight/coresight-etm4x.h
@@ -824,7 +824,6 @@ struct etmv4_config {
 	u32				eventctrl1;
 	u32				stall_ctrl;
 	u32				ts_ctrl;
-	u32				syncfreq;
 	u32				ccctlr;
 	u32				bb_ctrl;
 	u32				vinst_ctrl;
@@ -832,6 +831,7 @@ struct etmv4_config {
 	u32				vissctlr;
 	u32				vipcssctlr;
 	u8				seq_idx;
+	u8				syncfreq;
 	u32				seq_ctrl[ETM_MAX_SEQ_STATES];
 	u32				seq_rst;
 	u32				seq_state;

-- 
2.34.1