linux-kernel - [PATCH v6 3/6] interconnect: icc-clk: Add devm_icc_clk

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Message-ID: <20240402103406.3638821-4-quic_varada@quicinc.com>
Date: Tue, 2 Apr 2024 16:04:03 +0530
From: Varadarajan Narayanan <quic_varada@...cinc.com>
To: <andersson@...nel.org>, <konrad.dybcio@...aro.org>,
        <mturquette@...libre.com>, <sboyd@...nel.org>, <robh@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <djakov@...nel.org>, <quic_varada@...cinc.com>,
        <dmitry.baryshkov@...aro.org>, <quic_anusha@...cinc.com>,
        <linux-arm-msm@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-pm@...r.kernel.org>
Subject: [PATCH v6 3/6] interconnect: icc-clk: Add devm_icc_clk_register

Wrap icc_clk_register to create devm_icc_clk_register to be
able to release the resources properly.

Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
---
v5: Introduced devm_icc_clk_register
---
 drivers/interconnect/icc-clk.c   | 29 +++++++++++++++++++++++++++++
 include/linux/interconnect-clk.h |  4 ++++
 2 files changed, 33 insertions(+)

diff --git a/drivers/interconnect/icc-clk.c b/drivers/interconnect/icc-clk.c
index d787f2ea36d9..89f11fed8820 100644
--- a/drivers/interconnect/icc-clk.c
+++ b/drivers/interconnect/icc-clk.c
@@ -148,6 +148,35 @@ struct icc_provider *icc_clk_register(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(icc_clk_register);
 
+static void devm_icc_release(struct device *dev, void *res)
+{
+	icc_clk_unregister(res);
+}
+
+struct icc_provider *devm_icc_clk_register(struct device *dev,
+				      unsigned int first_id,
+				      unsigned int num_clocks,
+				      const struct icc_clk_data *data)
+{
+	struct icc_provider *prov, **provp;
+
+	provp = devres_alloc(devm_icc_release, sizeof(*provp), GFP_KERNEL);
+	if (!provp)
+		return ERR_PTR(-ENOMEM);
+
+	prov = icc_clk_register(dev, first_id, num_clocks, data);
+
+	if (!IS_ERR(prov)) {
+		*provp = prov;
+		devres_add(dev, provp);
+	} else {
+		devres_free(provp);
+	}
+
+	return prov;
+}
+EXPORT_SYMBOL_GPL(devm_icc_clk_register);
+
 /**
  * icc_clk_unregister() - unregister a previously registered clk interconnect provider
  * @provider: provider returned by icc_clk_register()
diff --git a/include/linux/interconnect-clk.h b/include/linux/interconnect-clk.h
index 0cd80112bea5..cb7b648eb1c0 100644
--- a/include/linux/interconnect-clk.h
+++ b/include/linux/interconnect-clk.h
@@ -17,6 +17,10 @@ struct icc_provider *icc_clk_register(struct device *dev,
 				      unsigned int first_id,
 				      unsigned int num_clocks,
 				      const struct icc_clk_data *data);
+struct icc_provider *devm_icc_clk_register(struct device *dev,
+					   unsigned int first_id,
+					   unsigned int num_clocks,
+					   const struct icc_clk_data *data);
 void icc_clk_unregister(struct icc_provider *provider);
 
 #endif
-- 
2.34.1