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43 lines
1.3 KiB
Diff
43 lines
1.3 KiB
Diff
From: Miaoqing Pan <miaoqing@codeaurora.org>
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Subject: [PATCH] ath10k: fix latency issue for QCA988x
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Date: Thu, 29 Aug 2019 10:45:12 +0800
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Bad latency is found on QCA988x, the issue was introduced by
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commit 4504f0e5b571 ("ath10k: sdio: workaround firmware UART
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pin configuration bug"). If uart_pin_workaround is false, this
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change will set uart pin even if uart_print is false.
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Tested HW: QCA9880
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Tested FW: 10.2.4-1.0-00037
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Fixes: 4504f0e5b571 ("ath10k: sdio: workaround firmware UART pin configuration bug")
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Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
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---
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drivers/net/wireless/ath/ath10k/core.c | 15 +++++++++------
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1 file changed, 9 insertions(+), 6 deletions(-)
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--- a/drivers/net/wireless/ath/ath10k/core.c
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+++ b/drivers/net/wireless/ath/ath10k/core.c
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@@ -2124,12 +2124,15 @@ static int ath10k_init_uart(struct ath10
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return ret;
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}
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- if (!uart_print && ar->hw_params.uart_pin_workaround) {
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- ret = ath10k_bmi_write32(ar, hi_dbg_uart_txpin,
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- ar->hw_params.uart_pin);
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- if (ret) {
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- ath10k_warn(ar, "failed to set UART TX pin: %d", ret);
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- return ret;
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+ if (!uart_print) {
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+ if (ar->hw_params.uart_pin_workaround) {
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+ ret = ath10k_bmi_write32(ar, hi_dbg_uart_txpin,
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+ ar->hw_params.uart_pin);
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+ if (ret) {
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+ ath10k_warn(ar, "failed to set UART TX pin: %d",
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+ ret);
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+ return ret;
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+ }
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}
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return 0;
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