interconnect: imx: introduce imx_icc_provider

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

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20220703091132.1412063-7-peng.fan@oss.nxp.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>

diff --git a/drivers/interconnect/imx/imx.c b/drivers/interconnect/imx/imx.c
index 9b83f69..1f16eed 100644 (file)
--- 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 75da510..0ad2c65 100644 (file)
--- 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
  */