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db90c243a0
This updates mac80211 to backports based on kernel 4.19-rc4. I plan to integrate all the patches which are in this tar into upstream backports soon. I used the backports generated from this code: https://github.com/hauke/backports/commits/wip2 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
80 lines
2.0 KiB
Diff
80 lines
2.0 KiB
Diff
--- a/drivers/net/wireless/ath/ath9k/hw.c
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+++ b/drivers/net/wireless/ath/ath9k/hw.c
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@@ -248,6 +248,19 @@ void ath9k_hw_get_channel_centers(struct
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centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
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}
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+static inline void ath9k_hw_disable_pll_lock_detect(struct ath_hw *ah)
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+{
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+ /* On AR9330 and AR9340 devices, some PHY registers must be
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+ * tuned to gain better stability/performance. These registers
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+ * might be changed while doing wlan reset so the registers must
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+ * be reprogrammed after each reset.
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+ */
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+ REG_CLR_BIT(ah, AR_PHY_USB_CTRL1, BIT(20));
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+ REG_RMW(ah, AR_PHY_USB_CTRL2,
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+ (1 << 21) | (0xf << 22),
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+ (1 << 21) | (0x3 << 22));
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+}
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+
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/******************/
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/* Chip Revisions */
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/******************/
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@@ -1441,6 +1454,9 @@ static bool ath9k_hw_set_reset(struct at
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udelay(50);
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}
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+ if (AR_SREV_9330(ah) || AR_SREV_9340(ah))
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+ ath9k_hw_disable_pll_lock_detect(ah);
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+
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return true;
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}
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@@ -1540,6 +1556,9 @@ static bool ath9k_hw_chip_reset(struct a
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ar9003_hw_internal_regulator_apply(ah);
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ath9k_hw_init_pll(ah, chan);
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+ if (AR_SREV_9330(ah) || AR_SREV_9340(ah))
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+ ath9k_hw_disable_pll_lock_detect(ah);
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+
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return true;
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}
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@@ -1847,8 +1866,14 @@ static int ath9k_hw_do_fastcc(struct ath
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if (AR_SREV_9271(ah))
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ar9002_hw_load_ani_reg(ah, chan);
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+ if (AR_SREV_9330(ah) || AR_SREV_9340(ah))
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+ ath9k_hw_disable_pll_lock_detect(ah);
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+
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return 0;
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fail:
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+ if (AR_SREV_9330(ah) || AR_SREV_9340(ah))
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+ ath9k_hw_disable_pll_lock_detect(ah);
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+
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return -EINVAL;
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}
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@@ -2102,6 +2127,9 @@ int ath9k_hw_reset(struct ath_hw *ah, st
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ath9k_hw_set_radar_params(ah);
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}
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+ if (AR_SREV_9330(ah) || AR_SREV_9340(ah))
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+ ath9k_hw_disable_pll_lock_detect(ah);
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+
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return 0;
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}
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EXPORT_SYMBOL(ath9k_hw_reset);
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--- a/drivers/net/wireless/ath/ath9k/phy.h
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+++ b/drivers/net/wireless/ath/ath9k/phy.h
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@@ -48,6 +48,9 @@
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#define AR_PHY_PLL_CONTROL 0x16180
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#define AR_PHY_PLL_MODE 0x16184
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+#define AR_PHY_USB_CTRL1 0x16c84
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+#define AR_PHY_USB_CTRL2 0x16c88
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+
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enum ath9k_ant_div_comb_lna_conf {
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ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2,
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ATH_ANT_DIV_COMB_LNA2,
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