diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/mac.c')
-rw-r--r-- | drivers/net/wireless/ath/ath10k/mac.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index 43398e06454f..e49b36752ba2 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -22,6 +22,7 @@ #include <net/mac80211.h> #include <linux/etherdevice.h> #include <linux/acpi.h> +#include <linux/of.h> #include "hif.h" #include "core.h" @@ -4637,11 +4638,44 @@ static int ath10k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) return ret; } +static int __ath10k_fetch_bb_timing_dt(struct ath10k *ar, + struct wmi_bb_timing_cfg_arg *bb_timing) +{ + struct device_node *node; + const char *fem_name; + int ret; + + node = ar->dev->of_node; + if (!node) + return -ENOENT; + + ret = of_property_read_string_index(node, "ext-fem-name", 0, &fem_name); + if (ret) + return -ENOENT; + + /* + * If external Front End module used in hardware, then default base band timing + * parameter cannot be used since they were fine tuned for reference hardware, + * so choosing different value suitable for that external FEM. + */ + if (!strcmp("microsemi-lx5586", fem_name)) { + bb_timing->bb_tx_timing = 0x00; + bb_timing->bb_xpa_timing = 0x0101; + } else { + return -ENOENT; + } + + ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot bb_tx_timing 0x%x bb_xpa_timing 0x%x\n", + bb_timing->bb_tx_timing, bb_timing->bb_xpa_timing); + return 0; +} + static int ath10k_start(struct ieee80211_hw *hw) { struct ath10k *ar = hw->priv; u32 param; int ret = 0; + struct wmi_bb_timing_cfg_arg bb_timing = {0}; /* * This makes sense only when restarting hw. It is harmless to call @@ -4796,6 +4830,19 @@ static int ath10k_start(struct ieee80211_hw *hw) clear_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags); } + if (test_bit(WMI_SERVICE_BB_TIMING_CONFIG_SUPPORT, ar->wmi.svc_map)) { + ret = __ath10k_fetch_bb_timing_dt(ar, &bb_timing); + if (!ret) { + ret = ath10k_wmi_pdev_bb_timing(ar, &bb_timing); + if (ret) { + ath10k_warn(ar, + "failed to set bb timings: %d\n", + ret); + goto err_core_stop; + } + } + } + ar->num_started_vdevs = 0; ath10k_regd_update(ar); |