ssb: update reject bit for Target State Low
My 14e4:4315 is SSB_IDLOW_SSBREV_26:
read32 0xfaafcff8 -> 0x600422d5
My 14e4:4328 is SSB_IDLOW_SSBREV_24:
read32 0xfaafcff8 -> 0x400422c5
My 14e4:432b is SSB_IDLOW_SSBREV_26 again:
read32 0xfaafcff8 -> 0x600422d5
For all of them wl driver is using 0x2 reject bit:
write32(0xf98) <- 0x00010002
So it seems SSB 2.3 is the exception using another bit.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index 74aa2cc..ad3da93 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -1117,23 +1117,22 @@
{
u32 rev = ssb_read32(dev, SSB_IDLOW) & SSB_IDLOW_SSBREV;
- /* The REJECT bit changed position in TMSLOW between
- * Backplane revisions. */
+ /* The REJECT bit seems to be different for Backplane rev 2.3 */
switch (rev) {
case SSB_IDLOW_SSBREV_22:
- return SSB_TMSLOW_REJECT_22;
+ case SSB_IDLOW_SSBREV_24:
+ case SSB_IDLOW_SSBREV_26:
+ return SSB_TMSLOW_REJECT;
case SSB_IDLOW_SSBREV_23:
return SSB_TMSLOW_REJECT_23;
- case SSB_IDLOW_SSBREV_24: /* TODO - find the proper REJECT bits */
- case SSB_IDLOW_SSBREV_25: /* same here */
- case SSB_IDLOW_SSBREV_26: /* same here */
+ case SSB_IDLOW_SSBREV_25: /* TODO - find the proper REJECT bit */
case SSB_IDLOW_SSBREV_27: /* same here */
- return SSB_TMSLOW_REJECT_23; /* this is a guess */
+ return SSB_TMSLOW_REJECT; /* this is a guess */
default:
printk(KERN_INFO "ssb: Backplane Revision 0x%.8X\n", rev);
WARN_ON(1);
}
- return (SSB_TMSLOW_REJECT_22 | SSB_TMSLOW_REJECT_23);
+ return (SSB_TMSLOW_REJECT | SSB_TMSLOW_REJECT_23);
}
int ssb_device_is_enabled(struct ssb_device *dev)