[PATCH 02/11] ath10k_sdio: wb396 reference card fix
From: <hidden>
Date: 2017-09-30 17:38:30
Subsystem:
atheros ath generic utilities, qualcomm atheros ath10k wireless driver, the rest · Maintainers:
Jeff Johnson, Linus Torvalds
From: Alagu Sankar <redacted> The QCA9377-3 WB396 sdio reference card does not get initialized due to the conflict in uart gpio pins. This fix is not required for other QCA9377 sdio cards. Signed-off-by: Alagu Sankar <redacted> --- drivers/net/wireless/ath/ath10k/core.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index b4f66cd..86247c8 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c@@ -1708,8 +1708,15 @@ static int ath10k_init_uart(struct ath10k *ar) return ret; } - if (!uart_print) + if (!uart_print) { + /* Hack: override dbg TX pin to avoid side effects of default + * GPIO_6 in QCA9377 WB396 reference card + */ + if (ar->hif.bus == ATH10K_BUS_SDIO) + ath10k_bmi_write32(ar, hi_dbg_uart_txpin, + ar->hw_params.uart_pin); return 0; + } ret = ath10k_bmi_write32(ar, hi_dbg_uart_txpin, ar->hw_params.uart_pin); if (ret) {
--
1.9.1