linux-kernel - Re: [PATCHv3 1/3] serial: mctrl_gpio: implement mctrl_gpio_use

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Date:   Tue, 27 Sep 2016 17:15:34 +0200
From:   Richard Genoud <richard.genoud@...il.com>
To:     Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
Cc:     Nicolas Ferre <nicolas.ferre@...el.com>,
        Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Cyrille Pitchen <cyrille.pitchen@...el.com>,
        "linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCHv3 1/3] serial: mctrl_gpio: implement mctrl_gpio_use_rtscts

2016-09-27 17:12 GMT+02:00 Uwe Kleine-König <u.kleine-koenig@...gutronix.de>:
> Hello,
>
> On Tue, Sep 27, 2016 at 04:13:11PM +0200, Richard Genoud wrote:
>> diff --git a/drivers/tty/serial/serial_mctrl_gpio.c b/drivers/tty/serial/serial_mctrl_gpio.c
>> index d2da6aa7f27d..0e5525a64c2a 100644
>> --- a/drivers/tty/serial/serial_mctrl_gpio.c
>> +++ b/drivers/tty/serial/serial_mctrl_gpio.c
>> @@ -17,6 +17,7 @@
>>  #include <linux/err.h>
>>  #include <linux/device.h>
>>  #include <linux/irq.h>
>> +#include <linux/err.h>
>
> this isn't needed any more, right?
indeed !

>
>>  #include <linux/gpio/consumer.h>
>>  #include <linux/termios.h>
>>  #include <linux/serial_core.h>
>> @@ -72,6 +73,13 @@ struct gpio_desc *mctrl_gpio_to_gpiod(struct mctrl_gpios *gpios,
>>  }
>>  EXPORT_SYMBOL_GPL(mctrl_gpio_to_gpiod);
>>
>> +bool mctrl_gpio_use_rtscts(struct mctrl_gpios *gpios)
>> +{
>> +     return mctrl_gpio_to_gpiod(gpios, UART_GPIO_CTS) &&
>> +             mctrl_gpio_to_gpiod(gpios, UART_GPIO_RTS);
>> +}
>> +EXPORT_SYMBOL_GPL(mctrl_gpio_use_rtscts);
>> +
>>  unsigned int mctrl_gpio_get(struct mctrl_gpios *gpios, unsigned int *mctrl)
>>  {
>>       enum mctrl_gpio_idx i;
>
> Best regards
> Uwe
Thanks !

Richard.