[RFC PATCH v2 2/4] serial: mxs-auart: Use helpers for gpio irqs

[Uwe Kleine-König]

Hello,

On Sat, Jan 10, 2015 at 03:32:44PM +0100, Janusz Uzycki wrote:
> The patch updates mxs-auart driver to use new mctrl_gpio helpers for
> gpio irqs. The code is much simpler now.
> 
> Signed-off-by: Janusz Uzycki <j.uzycki at elproma.com.pl>
> ---
> 
> There is no changes since v1 (rebased only).
> 
> ---
>  drivers/tty/serial/mxs-auart.c | 133 ++++-------------------------------------
>  1 file changed, 13 insertions(+), 120 deletions(-)
Very nice!

> diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
> index ec553f8..2ddba69 100644
> --- a/drivers/tty/serial/mxs-auart.c
> +++ b/drivers/tty/serial/mxs-auart.c
> [...]
> @@ -483,18 +458,9 @@ static void mxs_auart_enable_ms(struct uart_port *port)
>  
>  	s->ms_irq_enabled = true;
>  
> -	if (s->gpio_irq[UART_GPIO_CTS] >= 0)
> -		enable_irq(s->gpio_irq[UART_GPIO_CTS]);
> -	/* TODO: enable AUART_INTR_CTSMIEN otherwise */
> -
> -	if (s->gpio_irq[UART_GPIO_DSR] >= 0)
> -		enable_irq(s->gpio_irq[UART_GPIO_DSR]);
> -
> -	if (s->gpio_irq[UART_GPIO_RI] >= 0)
> -		enable_irq(s->gpio_irq[UART_GPIO_RI]);
> -
> -	if (s->gpio_irq[UART_GPIO_DCD] >= 0)
> -		enable_irq(s->gpio_irq[UART_GPIO_DCD]);
> +	mctrl_gpio_enable_ms(s->gpios);
> +	/* TODO: enable AUART_INTR_CTSMIEN
> +	 * if s->gpios->irq[UART_GPIO_CTS] == 0 */
What is the problem here? For the other lines nothing needs to be done?
This comment doesn't match the coding style.

Other than that, this patch looks good.

Uwe

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