linux-kernel - [PATCH v3 2/2] coresight-tpda: Change qcom,dsb-element-size to qcom,dsb-elem-bits

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Date: Sun, 18 Feb 2024 01:43:20 -0800
From: Mao Jinlong <quic_jinlmao@...cinc.com>
To: Suzuki K Poulose <suzuki.poulose@....com>,
        Mike Leach
	<mike.leach@...aro.org>, James Clark <james.clark@....com>,
        Bjorn Andersson
	<andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring
	<robh+dt@...nel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        "Mao
 Jinlong" <quic_jinlmao@...cinc.com>,
        Tao Zhang <quic_taozha@...cinc.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>
CC: <coresight@...ts.linaro.org>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH v3 2/2] coresight-tpda: Change qcom,dsb-element-size to qcom,dsb-elem-bits

Change qcom,dsb-element-size to qcom,dsb-elem-bits as the unit is bit.
When use "-bits" suffix, the type of the property is u32 from
property-units.yaml, so use fwnode_property_read_u32 to read the
property.

Fixes: 57e7235aa1d1 ("coresight-tpda: Add DSB dataset support")
Signed-off-by: Mao Jinlong <quic_jinlmao@...cinc.com>
---
 drivers/hwtracing/coresight/coresight-tpda.c | 4 ++--
 drivers/hwtracing/coresight/coresight-tpda.h | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-tpda.c b/drivers/hwtracing/coresight/coresight-tpda.c
index 6863afe7ca94..7739bc7adc44 100644
--- a/drivers/hwtracing/coresight/coresight-tpda.c
+++ b/drivers/hwtracing/coresight/coresight-tpda.c
@@ -69,8 +69,8 @@ static int tpdm_read_element_size(struct tpda_drvdata *drvdata,
 	struct tpdm_drvdata *tpdm_data = dev_get_drvdata(csdev->dev.parent);
 
 	if (tpdm_has_dsb_dataset(tpdm_data)) {
-		rc = fwnode_property_read_u8(dev_fwnode(csdev->dev.parent),
-				"qcom,dsb-element-size", &drvdata->dsb_esize);
+		rc = fwnode_property_read_u32(dev_fwnode(csdev->dev.parent),
+				"qcom,dsb-element-bits", &drvdata->dsb_esize);
 	}
 	if (tpdm_has_cmb_dataset(tpdm_data)) {
 		rc = fwnode_property_read_u32(dev_fwnode(csdev->dev.parent),
diff --git a/drivers/hwtracing/coresight/coresight-tpda.h b/drivers/hwtracing/coresight/coresight-tpda.h
index 19af64120fcf..c6af3d2da3ef 100644
--- a/drivers/hwtracing/coresight/coresight-tpda.h
+++ b/drivers/hwtracing/coresight/coresight-tpda.h
@@ -36,7 +36,7 @@ struct tpda_drvdata {
 	struct coresight_device	*csdev;
 	spinlock_t		spinlock;
 	u8			atid;
-	u8			dsb_esize;
+	u32			dsb_esize;
 	u32			cmb_esize;
 };
 
-- 
2.41.0