[PATCH] tty/serial: earlycon: Fix print for implied MMIO case

[PATCH] tty/serial: earlycon: Fix print for implied MMIO case

[Kumar Gala]

For the case in which we just provide an address as an argument to the
earlycon console type like:

earlycon=msm_serial_dm,0xf991e000

We would report this as an IO port based mapping and not as MMIO.  Simple
fix to use the port->iotype to decide which message to print.

Signed-off-by: Kumar Gala <galak@codeaurora.org>
---
 drivers/tty/serial/earlycon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c
index a514ee6..64fe25a 100644
--- a/drivers/tty/serial/earlycon.c
+++ b/drivers/tty/serial/earlycon.c
@@ -98,7 +98,7 @@ static int __init parse_options(struct earlycon_device *device,
 		strlcpy(device->options, options, length);
 	}
 
-	if (mmio || mmio32)
+	if (port->iotype == UPIO_MEM || port->iotype == UPIO_MEM32)
 		pr_info("Early serial console at MMIO%s 0x%llx (options '%s')\n",
 			mmio32 ? "32" : "",
 			(unsigned long long)port->mapbase,
-- 
Qualcomm Innovation Center, Inc.
 The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
 a Linux Foundation Collaborative Project

[PATCH] tty/serial: earlycon: Fix print for implied MMIO case

[Mark Rutland]

On Fri, Oct 17, 2014 at 10:01:11AM +0100, Kumar Gala wrote:
> For the case in which we just provide an address as an argument to the
> earlycon console type like:
> 
> earlycon=msm_serial_dm,0xf991e000

Personally it would be nice to see this when using pl011 as an earlyon.
Currently I get:

  Early serial console at I/O port 0x0 (options '')

With this patch I get:

  Early serial console at MMIO 0x7ff80000 (options '')

> We would report this as an IO port based mapping and not as MMIO.  Simple
> fix to use the port->iotype to decide which message to print.
> 
> Signed-off-by: Kumar Gala <galak@codeaurora.org>

Acked-by: Mark RUtland <mark.rutland@arm.com>

Thanks,
Mark.

> ---
>  drivers/tty/serial/earlycon.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c
> index a514ee6..64fe25a 100644
> --- a/drivers/tty/serial/earlycon.c
> +++ b/drivers/tty/serial/earlycon.c
> @@ -98,7 +98,7 @@ static int __init parse_options(struct earlycon_device *device,
>  		strlcpy(device->options, options, length);
>  	}
>  
> -	if (mmio || mmio32)
> +	if (port->iotype == UPIO_MEM || port->iotype == UPIO_MEM32)
>  		pr_info("Early serial console at MMIO%s 0x%llx (options '%s')\n",
>  			mmio32 ? "32" : "",
>  			(unsigned long long)port->mapbase,
> -- 
> Qualcomm Innovation Center, Inc.
>  The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
>  a Linux Foundation Collaborative Project
> 
> 
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