ath9k_hw: add a private callback for PLL control computation

The PLL control computation used to program the AR_RTC_PLL_CONTROL
register varies between our harware so just add a private callback for it.
AR9003 will use its own callback.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 7 insertions, 57 deletions

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index ea831f575a9d..349cffdbdea6 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -66,6 +66,12 @@ static bool ath9k_hw_macversion_supported(struct ath_hw *ah)
         return priv_ops->macversion_supported(ah->hw_version.macVersion);
 }
 
+static u32 ath9k_hw_compute_pll_control(struct ath_hw *ah,
+                                        struct ath9k_channel *chan)
+{
+        return ath9k_hw_private_ops(ah)->compute_pll_control(ah, chan);
+}
+
 /********************/
 /* Helper Functions */
 /********************/
@@ -1023,64 +1029,8 @@ static void ath9k_hw_init_qos(struct ath_hw *ah)
 static void ath9k_hw_init_pll(struct ath_hw *ah,
                               struct ath9k_channel *chan)
 {
-        u32 pll;
-
-        if (AR_SREV_9100(ah)) {
-                if (chan && IS_CHAN_5GHZ(chan))
-                        pll = 0x1450;
-                else
-                        pll = 0x1458;
-        } else {
-                if (AR_SREV_9280_10_OR_LATER(ah)) {
-                        pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);
-
-                        if (chan && IS_CHAN_HALF_RATE(chan))
-                                pll |= SM(0x1, AR_RTC_9160_PLL_CLKSEL);
-                        else if (chan && IS_CHAN_QUARTER_RATE(chan))
-                                pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL);
-
-                        if (chan && IS_CHAN_5GHZ(chan)) {
-                                pll |= SM(0x28, AR_RTC_9160_PLL_DIV);
-
-
-                                if (AR_SREV_9280_20(ah)) {
-                                        if (((chan->channel % 20) == 0)
-                                            || ((chan->channel % 10) == 0))
-                                                pll = 0x2850;
-                                        else
-                                                pll = 0x142c;
-                                }
-                        } else {
-                                pll |= SM(0x2c, AR_RTC_9160_PLL_DIV);
-                        }
-
-                } else if (AR_SREV_9160_10_OR_LATER(ah)) {
-
-                        pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);
-
-                        if (chan && IS_CHAN_HALF_RATE(chan))
-                                pll |= SM(0x1, AR_RTC_9160_PLL_CLKSEL);
-                        else if (chan && IS_CHAN_QUARTER_RATE(chan))
-                                pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL);
-
-                        if (chan && IS_CHAN_5GHZ(chan))
-                                pll |= SM(0x50, AR_RTC_9160_PLL_DIV);
-                        else
-                                pll |= SM(0x58, AR_RTC_9160_PLL_DIV);
-                } else {
-                        pll = AR_RTC_PLL_REFDIV_5 | AR_RTC_PLL_DIV2;
-
-                        if (chan && IS_CHAN_HALF_RATE(chan))
-                                pll |= SM(0x1, AR_RTC_PLL_CLKSEL);
-                        else if (chan && IS_CHAN_QUARTER_RATE(chan))
-                                pll |= SM(0x2, AR_RTC_PLL_CLKSEL);
+        u32 pll = ath9k_hw_compute_pll_control(ah, chan);
 
-                        if (chan && IS_CHAN_5GHZ(chan))
-                                pll |= SM(0xa, AR_RTC_PLL_DIV);
-                        else
-                                pll |= SM(0xb, AR_RTC_PLL_DIV);
-                }
-        }
         REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
 
         /* Switch the core clock for ar9271 to 117Mhz */