Openwrt/target/linux/brcm47xx/patches-3.2/045-bcma-add-bus-num-counter.patch
Hauke Mehrtens 7fee567dc0 brcm47xx: move and rename the patches
The patches are now grouped by the part what they are doing and are using three digest numbers.

This does not remove or adds anything

SVN-Revision: 30942
2012-03-14 21:48:23 +00:00

60 lines
1.8 KiB
Diff

From eecd733c14952b074d7488934a4f3dc83c9c426b Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 14 Jan 2012 16:29:51 +0100
Subject: [PATCH 28/32] bcma: add bus num counter
If we have two bcma buses on one computer the second will not work
without this patch. Now each bus gets an own number.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
drivers/bcma/main.c | 12 +++++++++++-
include/linux/bcma/bcma.h | 1 +
2 files changed, 12 insertions(+), 1 deletions(-)
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -13,6 +13,12 @@
MODULE_DESCRIPTION("Broadcom's specific AMBA driver");
MODULE_LICENSE("GPL");
+/* contains the number the next bus should get. */
+static unsigned int bcma_bus_next_num = 0;
+
+/* bcma_buses_mutex locks the bcma_bus_next_num */
+static DEFINE_MUTEX(bcma_buses_mutex);
+
static int bcma_bus_match(struct device *dev, struct device_driver *drv);
static int bcma_device_probe(struct device *dev);
static int bcma_device_remove(struct device *dev);
@@ -93,7 +99,7 @@ static int bcma_register_cores(struct bc
core->dev.release = bcma_release_core_dev;
core->dev.bus = &bcma_bus_type;
- dev_set_name(&core->dev, "bcma%d:%d", 0/*bus->num*/, dev_id);
+ dev_set_name(&core->dev, "bcma%d:%d", bus->num, dev_id);
switch (bus->hosttype) {
case BCMA_HOSTTYPE_PCI:
@@ -137,6 +143,10 @@ int __devinit bcma_bus_register(struct b
int err;
struct bcma_device *core;
+ mutex_lock(&bcma_buses_mutex);
+ bus->num = bcma_bus_next_num++;
+ mutex_unlock(&bcma_buses_mutex);
+
/* Scan for devices (cores) */
err = bcma_bus_scan(bus);
if (err) {
--- a/include/linux/bcma/bcma.h
+++ b/include/linux/bcma/bcma.h
@@ -196,6 +196,7 @@ struct bcma_bus {
struct list_head cores;
u8 nr_cores;
u8 init_done:1;
+ u8 num;
struct bcma_drv_cc drv_cc;
struct bcma_drv_pci drv_pci;