2015-04-24 12:53 GMT+02:00 Matthias Brugger <matthias.bgg@xxxxxxxxx>:
> 2015-04-24 12:31 GMT+02:00 Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>:
>> On Fri, Apr 24, 2015 at 12:28:33PM +0200, Matthias Brugger wrote:
>>> 2015-04-23 10:51 GMT+02:00 Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>:
>>> > Just because of_clk_get() doesn't mean it should be used. Use devm_clk_get
>>> > which is the correct function when a struct device * is available. Also
>>> > since it's a devm function we can drop the calls to clk_put(). While at
>>> > it also fix a wrong debug message.
>>> >
>>> > Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
>>> > ---
>>> > drivers/tty/serial/8250/8250_mtk.c | 7 ++-----
>>> > 1 file changed, 2 insertions(+), 5 deletions(-)
>>> >
>>> > diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c
>>> > index 7a11fac..c6901dc 100644
>>> > --- a/drivers/tty/serial/8250/8250_mtk.c
>>> > +++ b/drivers/tty/serial/8250/8250_mtk.c
>>> > @@ -131,18 +131,16 @@ static int mtk8250_probe_of(struct platform_device *pdev, struct uart_port *p,
>>> > struct mtk8250_data *data)
>>> > {
>>> > int err;
>>> > - struct device_node *np = pdev->dev.of_node;
>>> >
>>> > - data->uart_clk = of_clk_get(np, 0);
>>> > + data->uart_clk = devm_clk_get(&pdev->dev, NULL);
>>> > if (IS_ERR(data->uart_clk)) {
>>> > - dev_warn(&pdev->dev, "Can't get timer clock\n");
>>> > + dev_warn(&pdev->dev, "Can't get uart clock\n");
>>> > return PTR_ERR(data->uart_clk);
>>> > }
>>> >
>>> > err = clk_prepare_enable(data->uart_clk);
>>> > if (err) {
>>> > dev_warn(&pdev->dev, "Can't prepare clock\n");
>>> > - clk_put(data->uart_clk);
>>> > return err;
>>> > }
>>> > p->uartclk = clk_get_rate(data->uart_clk);
>>> > @@ -216,7 +214,6 @@ static int mtk8250_remove(struct platform_device *pdev)
>>> > serial8250_unregister_port(data->line);
>>> > if (!IS_ERR(data->uart_clk)) {
>>> > clk_disable_unprepare(data->uart_clk);
>>> > - clk_put(data->uart_clk);
>>> > }
>>>
>>> Please delete the braces.
>>
>> The if() is removed completly in the next patch anyway.
>
> You are right. I propose to merge patch 2 and 3, so you get a clean code.
> On the way, can you have a look on the commit message? For me it is
> not clear what you want to say.
Actually I meant patch 1 and 2 of the series. Sorry for the confusion.
--
motzblog.wordpress.com
--
To unsubscribe from this list: send the line "unsubscribe linux-serial" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
