ssb: reset device only if it was enabled
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 06c0b6d..e05ba6e 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -1226,27 +1226,31 @@
return;
reject = ssb_tmslow_reject_bitmask(dev);
- ssb_write32(dev, SSB_TMSLOW, reject | SSB_TMSLOW_CLOCK);
- ssb_wait_bits(dev, SSB_TMSLOW, reject, 1000, 1);
- ssb_wait_bits(dev, SSB_TMSHIGH, SSB_TMSHIGH_BUSY, 1000, 0);
- if (ssb_read32(dev, SSB_IDLOW) & SSB_IDLOW_INITIATOR) {
- val = ssb_read32(dev, SSB_IMSTATE);
- val |= SSB_IMSTATE_REJECT;
- ssb_write32(dev, SSB_IMSTATE, val);
- ssb_wait_bits(dev, SSB_IMSTATE, SSB_IMSTATE_BUSY, 1000, 0);
- }
+ if (ssb_read32(dev, SSB_TMSLOW) & SSB_TMSLOW_CLOCK) {
+ ssb_write32(dev, SSB_TMSLOW, reject | SSB_TMSLOW_CLOCK);
+ ssb_wait_bits(dev, SSB_TMSLOW, reject, 1000, 1);
+ ssb_wait_bits(dev, SSB_TMSHIGH, SSB_TMSHIGH_BUSY, 1000, 0);
- ssb_write32(dev, SSB_TMSLOW,
- SSB_TMSLOW_FGC | SSB_TMSLOW_CLOCK |
- reject | SSB_TMSLOW_RESET |
- core_specific_flags);
- ssb_flush_tmslow(dev);
+ if (ssb_read32(dev, SSB_IDLOW) & SSB_IDLOW_INITIATOR) {
+ val = ssb_read32(dev, SSB_IMSTATE);
+ val |= SSB_IMSTATE_REJECT;
+ ssb_write32(dev, SSB_IMSTATE, val);
+ ssb_wait_bits(dev, SSB_IMSTATE, SSB_IMSTATE_BUSY, 1000,
+ 0);
+ }
- if (ssb_read32(dev, SSB_IDLOW) & SSB_IDLOW_INITIATOR) {
- val = ssb_read32(dev, SSB_IMSTATE);
- val &= ~SSB_IMSTATE_REJECT;
- ssb_write32(dev, SSB_IMSTATE, val);
+ ssb_write32(dev, SSB_TMSLOW,
+ SSB_TMSLOW_FGC | SSB_TMSLOW_CLOCK |
+ reject | SSB_TMSLOW_RESET |
+ core_specific_flags);
+ ssb_flush_tmslow(dev);
+
+ if (ssb_read32(dev, SSB_IDLOW) & SSB_IDLOW_INITIATOR) {
+ val = ssb_read32(dev, SSB_IMSTATE);
+ val &= ~SSB_IMSTATE_REJECT;
+ ssb_write32(dev, SSB_IMSTATE, val);
+ }
}
ssb_write32(dev, SSB_TMSLOW,