openwrt/target/linux/bcm4908/patches-5.4/180-soc-brcmstb-add-stubs-for-getting-platform-IDs.patch

From c149974b2ae2e2296c66262a4ee797c06c39982b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Thu, 14 Jan 2021 11:33:01 +0100
Subject: [PATCH] soc: brcmstb: add stubs for getting platform IDs

Some brcmstb drivers may be shared with other SoC families. E.g. the
same USB PHY block is shared by brcmstb and BCM4908.

To avoid building brcmstb common code on non-brcmstb platforms we need
stubs for:
1. brcmstb_get_family_id()
2. brcmstb_get_product_id()
(to avoid "undefined reference to" errors).

With this change PHY_BRCM_USB will not have to unconditionally select
SOC_BRCMSTB anymore.
---
 include/linux/soc/brcmstb/brcmstb.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

--- a/include/linux/soc/brcmstb/brcmstb.h
+++ b/include/linux/soc/brcmstb/brcmstb.h
@@ -12,6 +12,8 @@ static inline u32 BRCM_REV(u32 reg)
 	return reg & 0xff;
 }
 
+#ifdef CONFIG_SOC_BRCMSTB
+
 /*
  * Helper functions for getting family or product id from the
  * SoC driver.
@@ -19,4 +21,18 @@ static inline u32 BRCM_REV(u32 reg)
 u32 brcmstb_get_family_id(void);
 u32 brcmstb_get_product_id(void);
 
+#else
+
+static inline u32 brcmstb_get_family_id(void)
+{
+	return 0;
+}
+
+static inline u32 brcmstb_get_product_id(void)
+{
+	return 0;
+}
+
+#endif
+
 #endif /* __BRCMSTB_SOC_H */