From: Arnd Bergmann <arnd@arndb.de>
To: linux-arm-kernel@lists.infradead.org
Cc: Mans Rullgard <mans@mansr.com>, Russell King <linux@arm.linux.org.uk>,
        linux-kernel@vger.kernel.org
Subject: Re: [RESEND][PATCH] ARM: debug: add support for Palmchip 16550-like UART
Date: Wed, 04 Nov 2015 21:39:46 +0100
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On Tuesday 27 October 2015 12:57:57 Mans Rullgard wrote:
> --- a/arch/arm/include/debug/8250.S
> +++ b/arch/arm/include/debug/8250.S
> @@ -9,6 +9,18 @@
>   */
>  #include <linux/serial_reg.h>
>  
> +#ifdef CONFIG_DEBUG_UART_8250_PALMCHIP
> +
> +#undef UART_TX
> +#undef UART_LSR
> +#undef UART_MSR
> +
> +#define UART_TX 1
> +#define UART_LSR 7
> +#define UART_MSR 8
> +
> +#endif
> 

Maybe use a separate file instead of an #ifdef?


Something like

arch/arm/include/debug/8250-palmchip.S:

#include <linux/serial_reg.h>
 
#undef UART_TX
#undef UART_LSR
#undef UART_MSR

#define UART_TX 1
#define UART_LSR 7
#define UART_MSR 8

#include "8250.S"


	Arnd
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