net: ipa: pass a platform device to ipa_reg_init()

Rather than using the platform device pointer field in the IPA
pointer, pass a platform device pointer to ipa_reg_init().  Use
that pointer throughout that function.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ipa/ipa_main.c

@@ -866,7 +866,7 @@ static int ipa_probe(struct platform_device *pdev)
 	ipa->modem_route_count = data->modem_route_count;
 	init_completion(&ipa->completion);
 
-	ret = ipa_reg_init(ipa);
+	ret = ipa_reg_init(ipa, pdev);
 	if (ret)
 		goto err_kfree_ipa;
 

drivers/net/ipa/ipa_reg.c

@@ -4,6 +4,7 @@
  * Copyright (C) 2019-2023 Linaro Ltd.
  */
 
+#include <linux/platform_device.h>
 #include <linux/io.h>
 
 #include "ipa.h"
@@ -132,9 +133,9 @@ static const struct regs *ipa_regs(enum ipa_version version)
 	}
 }
 
-int ipa_reg_init(struct ipa *ipa)
+int ipa_reg_init(struct ipa *ipa, struct platform_device *pdev)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = &pdev->dev;
 	const struct regs *regs;
 	struct resource *res;
 
@@ -146,8 +147,7 @@ int ipa_reg_init(struct ipa *ipa)
 		return -EINVAL;
 
 	/* Setup IPA register memory  */
-	res = platform_get_resource_byname(ipa->pdev, IORESOURCE_MEM,
-					   "ipa-reg");
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ipa-reg");
 	if (!res) {
 		dev_err(dev, "DT error getting \"ipa-reg\" memory property\n");
 		return -ENODEV;

drivers/net/ipa/ipa_reg.h

@@ -12,6 +12,8 @@
 #include "ipa_version.h"
 #include "reg.h"
 
+struct platform_device;
+
 struct ipa;
 
 /**
@@ -643,7 +645,7 @@ extern const struct regs ipa_regs_v5_5;
 
 const struct reg *ipa_reg(struct ipa *ipa, enum ipa_reg_id reg_id);
 
-int ipa_reg_init(struct ipa *ipa);
+int ipa_reg_init(struct ipa *ipa, struct platform_device *pdev);
 void ipa_reg_exit(struct ipa *ipa);
 
 #endif /* _IPA_REG_H_ */