linux-kernel - Re: [PATCH] tty: serial: omap: increase max consoles to 10

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Message-ID: <544764D8.8050804@linutronix.de>
Date:	Wed, 22 Oct 2014 10:03:36 +0200
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	Nishanth Menon <nm@...com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Tony Lindgren <tony@...mide.com>
CC:	linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
	Jiri Slaby <jslaby@...e.cz>, linux-omap@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	"Franklin Cooper Jr." <fcooper@...com>
Subject: Re: [PATCH] tty: serial: omap: increase max consoles to 10

On 10/21/2014 06:23 PM, Nishanth Menon wrote:
> 
> The final solution is to transition off to use 8250 driver and no
> dependency on console structures and move away from omap-serial driver,
> hence no major cleanups are done for this driver.

So the shiny new driver works for you, is this what you are saying?

> diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
> index 18c30ca..4f9cbb6 100644
> --- a/drivers/tty/serial/omap-serial.c
> +++ b/drivers/tty/serial/omap-serial.c
> @@ -46,7 +46,7 @@
>  
>  #include <dt-bindings/gpio/gpio.h>
>  
> -#define OMAP_MAX_HSUART_PORTS	6
> +#define OMAP_MAX_HSUART_PORTS	10
>  
>  #define UART_BUILD_REVISION(x, y)	(((x) << 8) | (y))

Please also add a check in the probe code that "up->port.line" does not
exceed OMAP_MAX_HSUART_PORTS again. So we leave the probe function with
an error code instead.

Sebastian
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