linux-kernel - [PATCH 1/4] coresight: tmc: Add missing doc of tmc

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Message-ID: <20250418055820.3689408-2-hejunhao3@huawei.com>
Date: Fri, 18 Apr 2025 13:58:17 +0800
From: Junhao He <hejunhao3@...wei.com>
To: <suzuki.poulose@....com>, <james.clark@....com>,
	<anshuman.khandual@....com>, <mike.leach@...aro.org>, <leo.yan@....com>
CC: <coresight@...ts.linaro.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linuxarm@...wei.com>,
	<jonathan.cameron@...wei.com>, <yangyicong@...wei.com>,
	<hejunhao3@...wei.com>
Subject: [PATCH 1/4] coresight: tmc: Add missing doc of tmc_drvdata::reading

From: Yicong Yang <yangyicong@...ilicon.com>

tmc_drvdata::reading is used to indicate whether a reading process
is performed through /dev/xyz.tmc. Document it.

Reviewed-by: James Clark <james.clark@...aro.org>
Signed-off-by: Yicong Yang <yangyicong@...ilicon.com>
Signed-off-by: Junhao He <hejunhao3@...wei.com>
---
 drivers/hwtracing/coresight/coresight-tmc.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hwtracing/coresight/coresight-tmc.h b/drivers/hwtracing/coresight/coresight-tmc.h
index 2671926be62a..fdf7955e7350 100644
--- a/drivers/hwtracing/coresight/coresight-tmc.h
+++ b/drivers/hwtracing/coresight/coresight-tmc.h
@@ -174,6 +174,7 @@ struct etr_buf {
  * @pid:	Process ID of the process that owns the session that is using
  *		this component. For example this would be the pid of the Perf
  *		process.
+ * @reading:	buffer's in the reading through "/dev/xyz.tmc" entry
  * @buf:	Snapshot of the trace data for ETF/ETB.
  * @etr_buf:	details of buffer used in TMC-ETR
  * @len:	size of the available trace for ETF/ETB.
-- 
2.33.0