[PATCH 1/4] interconnect: qcom: icc-rpmh: Support child NoC device probe

From: Luca Weiss <luca.weiss@fairphone.com>
To: linux-arm-msm@vger.kernel.org
Cc: ~postmarketos/upstreaming@lists.sr.ht,
	phone-devel@vger.kernel.org,
	Luca Weiss <luca.weiss@fairphone.com>,
	Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Georgi Djakov <djakov@kernel.org>,
	linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/4] interconnect: qcom: icc-rpmh: Support child NoC device probe
Date: Fri, 22 Apr 2022 16:40:17 +0200	[thread overview]
Message-ID: <20220422144021.232993-2-luca.weiss@fairphone.com> (raw)
In-Reply-To: <20220422144021.232993-1-luca.weiss@fairphone.com>

As per e39bf2972c6e ("interconnect: icc-rpm: Support child NoC device
probe") also update the rpmh interconnect driver to support probing NoCs
that are modelled as child devices of a different NoC.

As the driver doesn't yet use the 'reg' property, no change is done for
that.

Downstream DT reference:
https://android.googlesource.com/kernel/msm-extra/devicetree/+/refs/tags/android-11.0.0_r0.56/qcom/lagoon-bus.dtsi

Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
---
 drivers/interconnect/qcom/icc-rpmh.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/interconnect/qcom/icc-rpmh.c b/drivers/interconnect/qcom/icc-rpmh.c
index 2c8e12549804..a2a8b3b9ba56 100644
--- a/drivers/interconnect/qcom/icc-rpmh.c
+++ b/drivers/interconnect/qcom/icc-rpmh.c
@@ -258,6 +258,10 @@ int qcom_icc_rpmh_probe(struct platform_device *pdev)
 	data->num_nodes = num_nodes;
 	platform_set_drvdata(pdev, qp);
 
+	/* Populate child NoC devices if any */
+	if (of_get_child_count(dev->of_node) > 0)
+		return of_platform_populate(dev->of_node, NULL, NULL, dev);
+
 	return 0;
 err:
 	icc_nodes_remove(provider);
-- 
2.36.0

