diff options
| author | Tamizh Chelvam <tamizhr@codeaurora.org> | 2020-01-27 22:18:56 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-02-11 17:22:49 +0300 |
| commit | 9f83993e1a92ba19fcee635e4aff823a72a18d0c (patch) | |
| tree | 4ace321daa4d8701e6eea0c0bff9142fcbcf8b2c /drivers/net/wireless/ath/ath10k/core.c | |
| parent | 7354de9c6e2c4ada06fbf119221eec4ec9eeb3c3 (diff) | |
| download | linux-9f83993e1a92ba19fcee635e4aff823a72a18d0c.tar.xz | |
ath10k: Add support to read btcoex related data from DT
BTCOEX feature is not supported by all QCA4019 chipsets.
Since btcoex enabled by default in firmware, host needs to
enable COEX support depends on the hardware. Enabling it
by default in unsupported hardware will cause some
feature disabled in hardware.
This patch will read btcoex_support flag and
wlan priority gpio pin number from DT. Depends on the
btcoex_support flag value host will expose BTCOEX support
and wlan priority gpio pin number to target.
Testing:
* Tested HW : QCA4019
* Tested FW : 10.4-3.2.1.1-00017
Signed-off-by: Tamizh Chelvam <tamizhr@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/core.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/core.c | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c index 5ec16ce19b69..5712e283e2d7 100644 --- a/drivers/net/wireless/ath/ath10k/core.c +++ b/drivers/net/wireless/ath/ath10k/core.c @@ -2119,6 +2119,40 @@ done: return 0; } +static void ath10k_core_fetch_btcoex_dt(struct ath10k *ar) +{ + struct device_node *node; + u8 coex_support = 0; + int ret; + + node = ar->dev->of_node; + if (!node) + goto out; + + ret = of_property_read_u8(node, "qcom,coexist-support", &coex_support); + if (ret) { + ar->coex_support = true; + goto out; + } + + if (coex_support) { + ar->coex_support = true; + } else { + ar->coex_support = false; + ar->coex_gpio_pin = -1; + goto out; + } + + ret = of_property_read_u32(node, "qcom,coexist-gpio-pin", + &ar->coex_gpio_pin); + if (ret) + ar->coex_gpio_pin = -1; + +out: + ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot coex_support %d coex_gpio_pin %d\n", + ar->coex_support, ar->coex_gpio_pin); +} + static int ath10k_init_uart(struct ath10k *ar) { int ret; @@ -2696,14 +2730,22 @@ int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode, if (test_bit(WMI_SERVICE_BSS_CHANNEL_INFO_64, ar->wmi.svc_map)) val |= WMI_10_4_BSS_CHANNEL_INFO_64; + ath10k_core_fetch_btcoex_dt(ar); + /* 10.4 firmware supports BT-Coex without reloading firmware * via pdev param. To support Bluetooth coexistence pdev param, * WMI_COEX_GPIO_SUPPORT of extended resource config should be * enabled always. + * + * We can still enable BTCOEX if firmware has the support + * eventhough btceox_support value is + * ATH10K_DT_BTCOEX_NOT_FOUND */ + if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map) && test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM, - ar->running_fw->fw_file.fw_features)) + ar->running_fw->fw_file.fw_features) && + ar->coex_support) val |= WMI_10_4_COEX_GPIO_SUPPORT; if (test_bit(WMI_SERVICE_TDLS_EXPLICIT_MODE_ONLY, |