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/owl-uart.c | 14 ++++++++++----
1 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/kernel/drivers/tty/serial/owl-uart.c b/kernel/drivers/tty/serial/owl-uart.c
index 73fcc6b..a0d4bff 100644
--- a/kernel/drivers/tty/serial/owl-uart.c
+++ b/kernel/drivers/tty/serial/owl-uart.c
@@ -427,7 +427,7 @@
return -EBUSY;
if (port->flags & UPF_IOREMAP) {
- port->membase = devm_ioremap_nocache(port->dev, port->mapbase,
+ port->membase = devm_ioremap(port->dev, port->mapbase,
resource_size(res));
if (!port->membase)
return -EBUSY;
@@ -662,10 +662,8 @@
}
irq = platform_get_irq(pdev, 0);
- if (irq < 0) {
- dev_err(&pdev->dev, "could not get irq\n");
+ if (irq < 0)
return irq;
- }
if (owl_uart_ports[pdev->id]) {
dev_err(&pdev->dev, "port %d already allocated\n", pdev->id);
@@ -682,6 +680,12 @@
return PTR_ERR(owl_port->clk);
}
+ ret = clk_prepare_enable(owl_port->clk);
+ if (ret) {
+ dev_err(&pdev->dev, "could not enable clk\n");
+ return ret;
+ }
+
owl_port->port.dev = &pdev->dev;
owl_port->port.line = pdev->id;
owl_port->port.type = PORT_OWL;
@@ -691,6 +695,7 @@
owl_port->port.uartclk = clk_get_rate(owl_port->clk);
if (owl_port->port.uartclk == 0) {
dev_err(&pdev->dev, "clock rate is zero\n");
+ clk_disable_unprepare(owl_port->clk);
return -EINVAL;
}
owl_port->port.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_LOW_LATENCY;
@@ -714,6 +719,7 @@
uart_remove_one_port(&owl_uart_driver, &owl_port->port);
owl_uart_ports[pdev->id] = NULL;
+ clk_disable_unprepare(owl_port->clk);
return 0;
}
--
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