linux-kernel - Re: drivers/tty/serial/max310x doesn't support latest UART revision of MAX14830

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Message-ID: <20161019083213.GA6727@kroah.com>
Date:   Wed, 19 Oct 2016 10:32:13 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Roberto Sara <robsara@...il.com>
Cc:     jslaby@...e.com, linux-kernel@...r.kernel.org
Subject: Re: drivers/tty/serial/max310x doesn't support latest UART revision
 of MAX14830

On Wed, Oct 19, 2016 at 10:25:41AM +0200, Roberto Sara wrote:
> Kernel 4.4.22

That's pretty old and obsolete, can you try 4.8?

> MAX310x_REV_MASK has a value of 0xfc which only allows for UART revisions of
> 0xb0 to 0xb3.
> 
> The latest MAX14830 UARTS have revision number 0xb4.  The data sheet only
> states that revisions start at 0xb0.
> 
> I suggest a change of MAX310x_REV_MASK to 0xf8, which will allow revisions up
> to 0xb7

Great, can you send a patch that you have tested to work properly?

thanks,

greg k-h