ath5k: Update gain_F calibration code and add documentation

 * Update and cleanup rf gain optimization code

 * Add comments and refferences to docs and use sane function names

 * Use only step index on ath5k_gain, no need to have a pointer to
   the current step since we can determine te step from it's index,
   this also allows us to put all other structs on rfgain.h and cleanup
   ath5k.h a little

 * No need for ah_rfgain variable, we use ah_gain.g_state for everything

 * Tested on RF2112B chip but gain_F calibration is not yet done
   (we will finish this on the next patch where we'll rewrite rf-buffer
   handling)

 * Use initial rf gain settings for 2316 and 2317 SoCs introduced on a previous patch

 It seems big but it's mostly cleanup, very few functional changes have been made on phy.c

  Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>

Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 1 insertions, 4 deletions

diff --git a/drivers/net/wireless/ath5k/reset.c b/drivers/net/wireless/ath5k/reset.c
index dc2d7d8bdb7a..f7ce80e67dd4 100644
--- a/drivers/net/wireless/ath5k/reset.c
+++ b/drivers/net/wireless/ath5k/reset.c
@@ -441,9 +441,6 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
         s_led[1] = ath5k_hw_reg_read(ah, AR5K_GPIOCR);
         s_led[2] = ath5k_hw_reg_read(ah, AR5K_GPIODO);
 
-        if (change_channel && ah->ah_rf_banks != NULL)
-                ath5k_hw_get_rf_gain(ah);
-
 
         /*Wakeup the device*/
         ret = ath5k_hw_nic_wakeup(ah, channel->hw_value, false);
@@ -530,7 +527,7 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
                  * Write initial RF gain settings
                  * This should work for both 5111/5112
                  */
-                ret = ath5k_hw_rfgain(ah, freq);
+                ret = ath5k_hw_rfgain_init(ah, freq);
                 if (ret)
                         return ret;