linux-kernel - Re: [PATCH] serial: 8250_pci: Fix EXAR feature control register constants

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Date:   Tue, 7 Feb 2017 13:55:01 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Jan Kiszka <jan.kiszka@...mens.com>,
        Sudip Mukherjee <sudip.mukherjee@...ethink.co.uk>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] serial: 8250_pci: Fix EXAR feature control register constants

+Cc Sudip

On Fri, Feb 3, 2017 at 3:22 PM, Jan Kiszka <jan.kiszka@...mens.com> wrote:
> According to the XR17V352 manual, bit 4 is IrDA control and bit 5 for
> 485. Fortunately, no driver used them so far.
>
> Signed-off-by: Jan Kiszka <jan.kiszka@...mens.com>
> ---
>  include/uapi/linux/serial_reg.h | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/include/uapi/linux/serial_reg.h b/include/uapi/linux/serial_reg.h
> index b4c0484..b1f60cb 100644
> --- a/include/uapi/linux/serial_reg.h
> +++ b/include/uapi/linux/serial_reg.h
> @@ -366,8 +366,8 @@
>  #define UART_EXAR_DVID         0x8d    /* Device identification */
>
>  #define UART_EXAR_FCTR         0x08    /* Feature Control Register */
> -#define UART_FCTR_EXAR_IRDA    0x08    /* IrDa data encode select */
> -#define UART_FCTR_EXAR_485     0x10    /* Auto 485 half duplex dir ctl */
> +#define UART_FCTR_EXAR_IRDA    0x10    /* IrDa data encode select */
> +#define UART_FCTR_EXAR_485     0x20    /* Auto 485 half duplex dir ctl */
>  #define UART_FCTR_EXAR_TRGA    0x00    /* FIFO trigger table A */
>  #define UART_FCTR_EXAR_TRGB    0x60    /* FIFO trigger table B */
>  #define UART_FCTR_EXAR_TRGC    0x80    /* FIFO trigger table C */



-- 
With Best Regards,
Andy Shevchenko