From 1c055e55a242a33e574e48be530e06770a210dcd Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 19 Feb 2024 03:26:26 +0000
Subject: [PATCH] add r8169 read mac form eeprom
---
kernel/drivers/tty/serial/serial-tegra.c | 12 +++++++++---
1 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/kernel/drivers/tty/serial/serial-tegra.c b/kernel/drivers/tty/serial/serial-tegra.c
index cda7180..fac4d90 100644
--- a/kernel/drivers/tty/serial/serial-tegra.c
+++ b/kernel/drivers/tty/serial/serial-tegra.c
@@ -614,8 +614,9 @@
if (tup->tx_in_progress != TEGRA_UART_TX_DMA)
return;
- dmaengine_terminate_all(tup->tx_dma_chan);
+ dmaengine_pause(tup->tx_dma_chan);
dmaengine_tx_status(tup->tx_dma_chan, tup->tx_cookie, &state);
+ dmaengine_terminate_all(tup->tx_dma_chan);
count = tup->tx_bytes_requested - state.residue;
async_tx_ack(tup->tx_dma_desc);
uart_xmit_advance(&tup->uport, count);
@@ -758,8 +759,9 @@
return;
}
- dmaengine_terminate_all(tup->rx_dma_chan);
+ dmaengine_pause(tup->rx_dma_chan);
dmaengine_tx_status(tup->rx_dma_chan, tup->rx_cookie, &state);
+ dmaengine_terminate_all(tup->rx_dma_chan);
tegra_uart_rx_buffer_push(tup, state.residue);
tup->rx_dma_active = false;
@@ -992,7 +994,11 @@
tup->ier_shadow = 0;
tup->current_baud = 0;
- clk_prepare_enable(tup->uart_clk);
+ ret = clk_prepare_enable(tup->uart_clk);
+ if (ret) {
+ dev_err(tup->uport.dev, "could not enable clk\n");
+ return ret;
+ }
/* Reset the UART controller to clear all previous status.*/
reset_control_assert(tup->rst);
--
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