1 files changed, 63 insertions, 0 deletions
diff --git a/target/linux/bcm4908/patches-5.4/082-v5.12-0003-soc-bcm-brcmstb-add-stubs-for-getting-platform-IDs.patch b/target/linux/bcm4908/patches-5.4/082-v5.12-0003-soc-bcm-brcmstb-add-stubs-for-getting-platform-IDs.patch
new file mode 100644
index 0000000000..aab65925b4
--- /dev/null
+++ b/target/linux/bcm4908/patches-5.4/082-v5.12-0003-soc-bcm-brcmstb-add-stubs-for-getting-platform-IDs.patch
@@ -0,0 +1,63 @@
+From 149ae80b1d50e7db5ac7df1cdf0820017b70e716 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 11:53:18 +0100
+Subject: [PATCH] soc: bcm: brcmstb: add stubs for getting platform IDs
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+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>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ 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
+@@ -2,6 +2,8 @@
+ #ifndef __BRCMSTB_SOC_H
+ #define __BRCMSTB_SOC_H
+ 
++#include <linux/kconfig.h>
++
+ static inline u32 BRCM_ID(u32 reg)
+ {
+ 	return reg >> 28 ? reg >> 16 : reg >> 8;
+@@ -12,6 +14,8 @@ static inline u32 BRCM_REV(u32 reg)
+ 	return reg & 0xff;
+ }
+ 
++#if IS_ENABLED(CONFIG_SOC_BRCMSTB)
++
+ /*
+  * Helper functions for getting family or product id from the
+  * SoC driver.
+@@ -19,4 +23,16 @@ 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 */