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authorRafał Miłecki <zajec5@gmail.com>2011-02-17 01:50:51 +0100
committerJohn W. Linville <linville@tuxdriver.com>2011-02-18 16:54:55 -0500
commit011d18350f525dfdb1ccbd52019e8c04cadcc222 (patch)
treebceefcd1c6e65bdaba3ff5346ae05c87ccdb88f4 /drivers/ssb/main.c
parentb1a1bcf714c4d79f7872a34138d100941ebb0a0b (diff)
downloadop-kernel-dev-011d18350f525dfdb1ccbd52019e8c04cadcc222.zip
op-kernel-dev-011d18350f525dfdb1ccbd52019e8c04cadcc222.tar.gz
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>
Diffstat (limited to 'drivers/ssb/main.c')
-rw-r--r--drivers/ssb/main.c40
1 files changed, 22 insertions, 18 deletions
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 @@ void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags)
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);
+
+ 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);
+ }
- ssb_write32(dev, SSB_TMSLOW,
- SSB_TMSLOW_FGC | SSB_TMSLOW_CLOCK |
- reject | SSB_TMSLOW_RESET |
- core_specific_flags);
- ssb_flush_tmslow(dev);
+ 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);
+ 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,
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