ath5k: Set turbo bit on rf bank 2

 * A diff between rfbuffer settings of turbo and non-turbo
 modes indicates there is a bit on bank 2 related to turbo operation
 (it's set on turbo modes). This bit is present on all radios except
 RF5413 that seems to have a completely different bank 2. Also
 since 2317 has the same rf-registers locations with 2425 and
 since the bit exists on 2317 I assume it also exists on 2425/2417).
 So in case we use turbo mode (40MHz) enable it on bank modification.

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

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

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c
index 61d3800c8118..df5cd0fd69d6 100644
--- a/drivers/net/wireless/ath/ath5k/phy.c
+++ b/drivers/net/wireless/ath/ath5k/phy.c
@@ -824,6 +824,11 @@ static int ath5k_hw_rfregs_init(struct ath5k_hw *ah,
 
         g_step = &go->go_step[ah->ah_gain.g_step_idx];
 
+        /* Set turbo mode (N/A on RF5413) */
+        if ((ah->ah_bwmode == AR5K_BWMODE_40MHZ) &&
+        (ah->ah_radio != AR5K_RF5413))
+                ath5k_hw_rfb_op(ah, rf_regs, 1, AR5K_RF_TURBO, false);
+
         /* Bank Modifications (chip-specific) */
         if (ah->ah_radio == AR5K_RF5111) {