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Date: Thu, 10 Jul 2014 16:13:42 -0700 From: Greg KH <gregkh@...uxfoundation.org> To: Alex Elder <elder@...aro.org> Cc: heikki.krogerus@...ux.intel.com, david.daney@...ium.com, loic.poulain@...el.com, linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH v2] serial: 8250_dw: support high baudrates if possible 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 <elder@...aro.org> > --- > 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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