[PATCH Broadcom/stblinux] soc: brcmstb: add stubs for getting platform IDs

["Rafał Miłecki" <zajec5@gmail.com>]

From: Rafał Miłecki <rafal@milecki.pl>

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.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
 include/linux/soc/brcmstb/brcmstb.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/include/linux/soc/brcmstb/brcmstb.h b/include/linux/soc/brcmstb/brcmstb.h
index 8e884e0dda0a..9433f5c8fd94 100644
--- 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 */
-- 
2.26.2