linux-kernel - [PATCH V2 1/2] soc: qcom: smp2p: Add remote name into smp2p irq devname

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Message-ID: <20240611123351.3813190-2-quic_sudeepgo@quicinc.com>
Date: Tue, 11 Jun 2024 18:03:50 +0530
From: Sudeepgoud Patil <quic_sudeepgo@...cinc.com>
To: <quic_bjorande@...cinc.com>, <andersson@...nel.org>,
        <quic_clew@...cinc.com>, <mathieu.poirier@...aro.org>
CC: <linux-kernel@...r.kernel.org>, <quic_deesin@...cinc.com>,
        <linux-arm-msm@...r.kernel.org>, <linux-remoteproc@...r.kernel.org>,
        "Konrad
 Dybcio" <konrad.dybcio@...aro.org>
Subject: [PATCH V2 1/2] soc: qcom: smp2p: Add remote name into smp2p irq devname

Add smp2p irq devname which fetches remote name from respective
smp2p dtsi node, which makes the wakeup source distinguishable
in irq wakeup prints.

Signed-off-by: Sudeepgoud Patil <quic_sudeepgo@...cinc.com>
---
 drivers/soc/qcom/smp2p.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/soc/qcom/smp2p.c b/drivers/soc/qcom/smp2p.c
index a21241cbeec7..a77fee048b38 100644
--- a/drivers/soc/qcom/smp2p.c
+++ b/drivers/soc/qcom/smp2p.c
@@ -122,6 +122,7 @@ struct smp2p_entry {
  * @ssr_ack_enabled: SMP2P_FEATURE_SSR_ACK feature is supported and was enabled
  * @ssr_ack: current cached state of the local ack bit
  * @negotiation_done: whether negotiating finished
+ * @irq_devname: poniter to the smp2p irq devname
  * @local_pid:	processor id of the inbound edge
  * @remote_pid:	processor id of the outbound edge
  * @ipc_regmap:	regmap for the outbound ipc
@@ -146,6 +147,7 @@ struct qcom_smp2p {
 	bool ssr_ack;
 	bool negotiation_done;
 
+	char *irq_devname;
 	unsigned local_pid;
 	unsigned remote_pid;
 
@@ -614,10 +616,16 @@ static int qcom_smp2p_probe(struct platform_device *pdev)
 	/* Kick the outgoing edge after allocating entries */
 	qcom_smp2p_kick(smp2p);
 
+	smp2p->irq_devname = kasprintf(GFP_KERNEL, "%s", pdev->dev.of_node->name);
+	if (!smp2p->irq_devname) {
+		ret = -ENOMEM;
+		goto unwind_interfaces;
+	}
+
 	ret = devm_request_threaded_irq(&pdev->dev, irq,
 					NULL, qcom_smp2p_intr,
 					IRQF_ONESHOT,
-					"smp2p", (void *)smp2p);
+					smp2p->irq_devname, (void *)smp2p);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to request interrupt\n");
 		goto unwind_interfaces;
@@ -650,6 +658,8 @@ static int qcom_smp2p_probe(struct platform_device *pdev)
 	list_for_each_entry(entry, &smp2p->outbound, node)
 		qcom_smem_state_unregister(entry->state);
 
+	kfree(smp2p->irq_devname);
+
 	smp2p->out->valid_entries = 0;
 
 release_mbox:
@@ -677,6 +687,8 @@ static void qcom_smp2p_remove(struct platform_device *pdev)
 
 	mbox_free_channel(smp2p->mbox_chan);
 
+	kfree(smp2p->irq_devname);
+
 	smp2p->out->valid_entries = 0;
 }
 
--