summaryrefslogtreecommitdiffstats
path: root/drivers/tty/serial/8250
diff options
context:
space:
mode:
authorMasahiro Yamada <yamada.masahiro@socionext.com>2018-09-28 11:05:08 +0900
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-10-02 13:38:58 -0700
commitaca70d19c8e56a871e9a68c9b6b940656666b56a (patch)
tree5cc7b9a6529503ed8484d2e75343d6bc7a3694d1 /drivers/tty/serial/8250
parent2fd8e454189d580bcfc198fee60e51655945b986 (diff)
downloadlinux-aca70d19c8e56a871e9a68c9b6b940656666b56a.tar.bz2
serial: 8250_uniphier: flatten probe function
Currently, the DT-related settings are split out to uniphier_of_serial_setup(), but it turned out to be not nice. The next commit will add a DT property, but it will not fit in the helper. Merge the helper into the probe function. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/8250')
-rw-r--r--drivers/tty/serial/8250/8250_uniphier.c49
1 files changed, 17 insertions, 32 deletions
diff --git a/drivers/tty/serial/8250/8250_uniphier.c b/drivers/tty/serial/8250/8250_uniphier.c
index d292654422b2..1028c02c5d83 100644
--- a/drivers/tty/serial/8250/8250_uniphier.c
+++ b/drivers/tty/serial/8250/8250_uniphier.c
@@ -155,36 +155,6 @@ static void uniphier_serial_dl_write(struct uart_8250_port *up, int value)
writel(value, up->port.membase + UNIPHIER_UART_DLR);
}
-static int uniphier_of_serial_setup(struct device *dev, struct uart_port *port,
- struct uniphier8250_priv *priv)
-{
- int ret;
- u32 prop;
- struct device_node *np = dev->of_node;
-
- ret = of_alias_get_id(np, "serial");
- if (ret < 0) {
- dev_err(dev, "failed to get alias id\n");
- return ret;
- }
- port->line = ret;
-
- /* Get clk rate through clk driver */
- priv->clk = devm_clk_get(dev, NULL);
- if (IS_ERR(priv->clk)) {
- dev_err(dev, "failed to get clock\n");
- return PTR_ERR(priv->clk);
- }
-
- ret = clk_prepare_enable(priv->clk);
- if (ret < 0)
- return ret;
-
- port->uartclk = clk_get_rate(priv->clk);
-
- return 0;
-}
-
static int uniphier_uart_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -217,9 +187,24 @@ static int uniphier_uart_probe(struct platform_device *pdev)
memset(&up, 0, sizeof(up));
- ret = uniphier_of_serial_setup(dev, &up.port, priv);
- if (ret < 0)
+ ret = of_alias_get_id(dev->of_node, "serial");
+ if (ret < 0) {
+ dev_err(dev, "failed to get alias id\n");
return ret;
+ }
+ up.port.line = ret;
+
+ priv->clk = devm_clk_get(dev, NULL);
+ if (IS_ERR(priv->clk)) {
+ dev_err(dev, "failed to get clock\n");
+ return PTR_ERR(priv->clk);
+ }
+
+ ret = clk_prepare_enable(priv->clk);
+ if (ret)
+ return ret;
+
+ up.port.uartclk = clk_get_rate(priv->clk);
spin_lock_init(&priv->atomic_write_lock);