[PATCH net-next v2] net: dsa: b53: Extend platform data to include DSA ports

[PATCH net-next v2] net: dsa: b53: Extend platform data to include DSA ports

[Florian Fainelli]

The b53 driver already defines and internally uses platform data to let the
glue drivers specify parameters such as the chip id.  What we were missing was
a way to tell the core DSA layer about the ports and their type.

Place a dsa_chip_data structure at the beginning of b53_platform_data for
dsa_register_switch() to access it. This does not require modifications to
b53_common.c which will pass platform_data trough.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
Changes in v2:

- update commit message

 include/linux/platform_data/b53.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/linux/platform_data/b53.h b/include/linux/platform_data/b53.h
index 69d279c0da96..8eaef2f2b691 100644
--- a/include/linux/platform_data/b53.h
+++ b/include/linux/platform_data/b53.h
@@ -20,8 +20,12 @@
 #define __B53_H
 
 #include <linux/kernel.h>
+#include <net/dsa.h>
 
 struct b53_platform_data {
+	/* Must be first such that dsa_register_switch() can access it */
+	struct dsa_chip_data cd;
+
 	u32 chip_id;
 	u16 enabled_ports;
 
-- 
2.14.1

Re: [PATCH net-next v2] net: dsa: b53: Extend platform data to include DSA ports

[David Miller]

From: Florian Fainelli <f.fainelli@gmail.com>
Date: Sun, 20 May 2018 08:56:30 -0700

> The b53 driver already defines and internally uses platform data to let the
> glue drivers specify parameters such as the chip id.  What we were missing was
> a way to tell the core DSA layer about the ports and their type.
> 
> Place a dsa_chip_data structure at the beginning of b53_platform_data for
> dsa_register_switch() to access it. This does not require modifications to
> b53_common.c which will pass platform_data trough.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

Applied, thanks.