linux-kernel - [PATCH V3 06/10] interconnect: imx: introduce imx_icc

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Date:   Sun,  3 Jul 2022 17:11:28 +0800
From:   "Peng Fan (OSS)" <peng.fan@....nxp.com>
To:     djakov@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
        festevam@...il.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, abel.vesa@....com,
        abailon@...libre.com, l.stach@...gutronix.de,
        laurent.pinchart@...asonboard.com, marex@...x.de,
        paul.elder@...asonboard.com, Markus.Niebel@...tq-group.com,
        aford173@...il.com, cw00.choi@...sung.com,
        kyungmin.park@...sung.com, myungjoo.ham@...sung.com
Cc:     kernel@...gutronix.de, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-imx@....com,
        abelvesa@...nel.org, Peng Fan <peng.fan@....com>
Subject: [PATCH V3 06/10] interconnect: imx: introduce imx_icc_provider

From: Peng Fan <peng.fan@....com>

Introduce imx_icc_provider as a wrapper of icc_provider to
add i.MX specific information.

Signed-off-by: Peng Fan <peng.fan@....com>
---
 drivers/interconnect/imx/imx.c | 24 ++++++++++++++----------
 drivers/interconnect/imx/imx.h |  6 ++++++
 2 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/drivers/interconnect/imx/imx.c b/drivers/interconnect/imx/imx.c
index 9b83f69945d8..1f16eedea21c 100644
--- a/drivers/interconnect/imx/imx.c
+++ b/drivers/interconnect/imx/imx.c
@@ -134,9 +134,10 @@ static int imx_icc_node_init_qos(struct icc_provider *provider,
 				      DEV_PM_QOS_MIN_FREQUENCY, 0);
 }
 
-static struct icc_node *imx_icc_node_add(struct icc_provider *provider,
+static struct icc_node *imx_icc_node_add(struct imx_icc_provider *imx_provider,
 					 const struct imx_icc_node_desc *node_desc)
 {
+	struct icc_provider *provider = &imx_provider->provider;
 	struct device *dev = provider->dev;
 	struct imx_icc_node *node_data;
 	struct icc_node *node;
@@ -184,10 +185,11 @@ static void imx_icc_unregister_nodes(struct icc_provider *provider)
 		imx_icc_node_destroy(node);
 }
 
-static int imx_icc_register_nodes(struct icc_provider *provider,
+static int imx_icc_register_nodes(struct imx_icc_provider *imx_provider,
 				  const struct imx_icc_node_desc *descs,
 				  int count)
 {
+	struct icc_provider *provider = &imx_provider->provider;
 	struct icc_onecell_data *provider_data = provider->data;
 	int ret;
 	int i;
@@ -197,7 +199,7 @@ static int imx_icc_register_nodes(struct icc_provider *provider,
 		const struct imx_icc_node_desc *node_desc = &descs[i];
 		size_t j;
 
-		node = imx_icc_node_add(provider, node_desc);
+		node = imx_icc_node_add(imx_provider, node_desc);
 		if (IS_ERR(node)) {
 			ret = dev_err_probe(provider->dev, PTR_ERR(node),
 					    "failed to add %s\n", node_desc->name);
@@ -239,6 +241,7 @@ int imx_icc_register(struct platform_device *pdev,
 {
 	struct device *dev = &pdev->dev;
 	struct icc_onecell_data *data;
+	struct imx_icc_provider *imx_provider;
 	struct icc_provider *provider;
 	int num_nodes;
 	int ret;
@@ -251,16 +254,17 @@ int imx_icc_register(struct platform_device *pdev,
 		return -ENOMEM;
 	data->num_nodes = num_nodes;
 
-	provider = devm_kzalloc(dev, sizeof(*provider), GFP_KERNEL);
-	if (!provider)
+	imx_provider = devm_kzalloc(dev, sizeof(*imx_provider), GFP_KERNEL);
+	if (!imx_provider)
 		return -ENOMEM;
+	provider = &imx_provider->provider;
 	provider->set = imx_icc_set;
 	provider->get_bw = imx_icc_get_bw;
 	provider->aggregate = icc_std_aggregate;
 	provider->xlate = of_icc_xlate_onecell;
 	provider->data = data;
 	provider->dev = dev->parent;
-	platform_set_drvdata(pdev, provider);
+	platform_set_drvdata(pdev, imx_provider);
 
 	ret = icc_provider_add(provider);
 	if (ret) {
@@ -268,7 +272,7 @@ int imx_icc_register(struct platform_device *pdev,
 		return ret;
 	}
 
-	ret = imx_icc_register_nodes(provider, nodes, nodes_count);
+	ret = imx_icc_register_nodes(imx_provider, nodes, nodes_count);
 	if (ret)
 		goto provider_del;
 
@@ -282,11 +286,11 @@ EXPORT_SYMBOL_GPL(imx_icc_register);
 
 int imx_icc_unregister(struct platform_device *pdev)
 {
-	struct icc_provider *provider = platform_get_drvdata(pdev);
+	struct imx_icc_provider *imx_provider = platform_get_drvdata(pdev);
 
-	imx_icc_unregister_nodes(provider);
+	imx_icc_unregister_nodes(&imx_provider->provider);
 
-	return icc_provider_del(provider);
+	return icc_provider_del(&imx_provider->provider);
 }
 EXPORT_SYMBOL_GPL(imx_icc_unregister);
 
diff --git a/drivers/interconnect/imx/imx.h b/drivers/interconnect/imx/imx.h
index 75da51076c68..0ad2c654c222 100644
--- a/drivers/interconnect/imx/imx.h
+++ b/drivers/interconnect/imx/imx.h
@@ -10,10 +10,16 @@
 #ifndef __DRIVERS_INTERCONNECT_IMX_H
 #define __DRIVERS_INTERCONNECT_IMX_H
 
+#include <linux/interconnect-provider.h>
 #include <linux/kernel.h>
 
 #define IMX_ICC_MAX_LINKS	4
 
+struct imx_icc_provider {
+	void __iomem *noc_base;
+	struct icc_provider provider;
+};
+
 /*
  * struct imx_icc_node_adj - Describe a dynamic adjustable node
  */
-- 
2.25.1