linux-kernel - Re: [PATCH] tty: serial: xuartps: Setup early console when uartclk is also passed

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Message-ID: <20180423080641.GA20149@kroah.com>
Date:   Mon, 23 Apr 2018 10:06:41 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Michal Simek <michal.simek@...inx.com>
Cc:     linux-kernel@...r.kernel.org, monstr@...str.eu,
        Jiri Slaby <jslaby@...e.com>, linux-serial@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] tty: serial: xuartps: Setup early console when uartclk
 is also passed

On Tue, Apr 10, 2018 at 03:33:30PM +0200, Michal Simek wrote:
> Baudrate calculation depends on requested baudrate and uart clock.
> This patch is checking that uartclk is also passed.
> 
> The same logic is used 8250_early.c/init_port function.
> 
> Signed-off-by: Michal Simek <michal.simek@...inx.com>
> ---
> 
>  drivers/tty/serial/xilinx_uartps.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
> index b9b2bc76bcac..a654cda203c7 100644
> --- a/drivers/tty/serial/xilinx_uartps.c
> +++ b/drivers/tty/serial/xilinx_uartps.c
> @@ -1181,7 +1181,7 @@ static int __init cdns_early_console_setup(struct earlycon_device *device,
>  	/* only set baud if specified on command line - otherwise
>  	 * assume it has been initialized by a boot loader.
>  	 */
> -	if (device->baud) {
> +	if (port->uartclk && device->baud) {
>  		u32 cd = 0, bdiv = 0;
>  		u32 mr;
>  		int div8;
> -- 
> 1.9.1

This patch conflicts with the previous patch you sent: Subject: [PATCH]
serial: xuartps: Fix the early_console junk character issue

So, which one should I apply?

I've dropped both from my review queue now, please resend the one(s) you
want applied, in a patch series if needed.

thanks,

greg k-h