1 files changed, 17 insertions, 2 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-io.c b/drivers/net/wireless/iwlwifi/iwl-io.c
index f98175a0d35b..44cc3cf45762 100644
--- a/drivers/net/wireless/iwlwifi/iwl-io.c
+++ b/drivers/net/wireless/iwlwifi/iwl-io.c
@@ -93,14 +93,14 @@ int iwl_poll_direct_bit(struct iwl_trans *trans, u32 addr, u32 mask,
 }
 IWL_EXPORT_SYMBOL(iwl_poll_direct_bit);
 
-static inline u32 __iwl_read_prph(struct iwl_trans *trans, u32 ofs)
+u32 __iwl_read_prph(struct iwl_trans *trans, u32 ofs)
 {
         u32 val = iwl_trans_read_prph(trans, ofs);
         trace_iwlwifi_dev_ioread_prph32(trans->dev, ofs, val);
         return val;
 }
 
-static inline void __iwl_write_prph(struct iwl_trans *trans, u32 ofs, u32 val)
+void __iwl_write_prph(struct iwl_trans *trans, u32 ofs, u32 val)
 {
         trace_iwlwifi_dev_iowrite_prph32(trans->dev, ofs, val);
         iwl_trans_write_prph(trans, ofs, val);
@@ -130,6 +130,21 @@ void iwl_write_prph(struct iwl_trans *trans, u32 ofs, u32 val)
 }
 IWL_EXPORT_SYMBOL(iwl_write_prph);
 
+int iwl_poll_prph_bit(struct iwl_trans *trans, u32 addr,
+                      u32 bits, u32 mask, int timeout)
+{
+        int t = 0;
+
+        do {
+                if ((iwl_read_prph(trans, addr) & mask) == (bits & mask))
+                        return t;
+                udelay(IWL_POLL_INTERVAL);
+                t += IWL_POLL_INTERVAL;
+        } while (t < timeout);
+
+        return -ETIMEDOUT;
+}
+
 void iwl_set_bits_prph(struct iwl_trans *trans, u32 ofs, u32 mask)
 {
         unsigned long flags;