From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751190AbaGJXJU (ORCPT ); Thu, 10 Jul 2014 19:09:20 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:60366 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751042AbaGJXJQ (ORCPT ); Thu, 10 Jul 2014 19:09:16 -0400 Date: Thu, 10 Jul 2014 16:13:42 -0700 From: Greg KH To: Alex Elder Cc: heikki.krogerus@linux.intel.com, david.daney@cavium.com, loic.poulain@intel.com, linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] serial: 8250_dw: support high baudrates if possible Message-ID: <20140710231342.GA9557@kroah.com> References: <1404227734-14180-1-git-send-email-elder@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1404227734-14180-1-git-send-email-elder@linaro.org> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 01, 2014 at 10:15:34AM -0500, Alex Elder wrote: > Currently the Synopsys DesignWare 8250 driver assumes its UART clock > runs at a fixed rate. If a "real" clock was set up using the common > clock framework, and that clock's rate is adjustable, it may be > possible to support a wider range of baud rates by changing the > UART clock rate. > > This is done by setting up a uart_port->set_termios method that > requests a clock rate change if a different rate might make it > more likely to achieve a specified baud. A new function > dw8250_adjustable_clk() determines whether such clock rate > adjustment is an option. > > Signed-off-by: Alex Elder > --- > v2: Limit clock changing to specific compatible devices. > > drivers/tty/serial/8250/8250_dw.c | 57 +++++++++++++++++++++++++++++++++++++++ > 1 file changed, 57 insertions(+) This no longer applies due to other changes in this driver. Can you please refresh it against my tty-next branch of the tty.git tree and resend? thanks, greg k-h