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Diffstat (limited to 'kernel/drivers/tty/serial/of_serial.c')
-rw-r--r--kernel/drivers/tty/serial/of_serial.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/kernel/drivers/tty/serial/of_serial.c b/kernel/drivers/tty/serial/of_serial.c
index 137381e64..de5029649 100644
--- a/kernel/drivers/tty/serial/of_serial.c
+++ b/kernel/drivers/tty/serial/of_serial.c
@@ -21,6 +21,10 @@
#include <linux/nwpserial.h>
#include <linux/clk.h>
+#ifdef CONFIG_SERIAL_8250_MODULE
+#define CONFIG_SERIAL_8250 CONFIG_SERIAL_8250_MODULE
+#endif
+
#include "8250/8250.h"
struct of_serial_info {
@@ -67,14 +71,17 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
if (of_property_read_u32(np, "clock-frequency", &clk)) {
/* Get clk rate through clk driver if present */
- info->clk = clk_get(&ofdev->dev, NULL);
+ info->clk = devm_clk_get(&ofdev->dev, NULL);
if (IS_ERR(info->clk)) {
dev_warn(&ofdev->dev,
"clk or clock-frequency not defined\n");
return PTR_ERR(info->clk);
}
- clk_prepare_enable(info->clk);
+ ret = clk_prepare_enable(info->clk);
+ if (ret < 0)
+ return ret;
+
clk = clk_get_rate(info->clk);
}
/* If current-speed was set, then try not to change it. */
@@ -147,6 +154,11 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
break;
}
+ if (IS_ENABLED(CONFIG_SERIAL_8250_FSL) &&
+ (of_device_is_compatible(np, "fsl,ns16550") ||
+ of_device_is_compatible(np, "fsl,16550-FIFO64")))
+ port->handle_irq = fsl8250_handle_irq;
+
return 0;
out:
if (info->clk)
@@ -188,7 +200,6 @@ static int of_platform_serial_probe(struct platform_device *ofdev)
{
struct uart_8250_port port8250;
memset(&port8250, 0, sizeof(port8250));
- port.type = port_type;
port8250.port = port;
if (port.fifosize)
@@ -348,6 +359,7 @@ static const struct of_device_id of_platform_serial_table[] = {
#endif
{ /* end of list */ },
};
+MODULE_DEVICE_TABLE(of, of_platform_serial_table);
static struct platform_driver of_platform_serial_driver = {
.driver = {