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authorHauke Mehrtens <hauke@hauke-m.de>2012-11-20 22:24:32 +0000
committerJohn Crispin <blogic@openwrt.org>2012-11-21 21:55:52 +0100
commit394bc7e38be79987ed15de203920c3cddb724cc1 (patch)
tree64cb52592aab0fb2f392560fb99d8d61caa81f4a /drivers/ssb/main.c
parentssb: add ssb_chipco_gpio_pull{up,down} (diff)
downloadlinux-dev-394bc7e38be79987ed15de203920c3cddb724cc1.tar.xz
linux-dev-394bc7e38be79987ed15de203920c3cddb724cc1.zip
ssb: add locking around gpio register accesses
The GPIOs are access through some registers in the chip common core or over extif. We need locking around these GPIO accesses, all GPIOs are accessed through the same registers and parallel writes will cause problems. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: http://patchwork.linux-mips.org/patch/4590 Acked-by: Florian Fainelli <florian@openwrt.org>
Diffstat (limited to 'drivers/ssb/main.c')
-rw-r--r--drivers/ssb/main.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index df0f145c22fc..6fe2d102734a 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -796,6 +796,7 @@ static int __devinit ssb_bus_register(struct ssb_bus *bus,
if (err)
goto err_pcmcia_exit;
ssb_chipcommon_init(&bus->chipco);
+ ssb_extif_init(&bus->extif);
ssb_mipscore_init(&bus->mipscore);
err = ssb_fetch_invariants(bus, get_invariants);
if (err) {