From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jbMmQ-0003gj-8T for barebox@lists.infradead.org; Wed, 20 May 2020 11:20:59 +0000 Date: Wed, 20 May 2020 13:20:56 +0200 From: Sascha Hauer Message-ID: <20200520112056.GC11869@pengutronix.de> References: <20200520035536.84368-1-dgienda125@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200520035536.84368-1-dgienda125@gmail.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: [PATCH] serial: Add flush function to NS16550 driver To: David Dgien Cc: barebox@lists.infradead.org On Tue, May 19, 2020 at 11:55:36PM -0400, David Dgien wrote: > Add flush function to NS16550 to remove bad characters being printed > during reset > > Signed-off-by: David Dgien > --- > drivers/serial/serial_ns16550.c | 12 ++++++++++++ > 1 file changed, 12 insertions(+) Applied, thanks Sascha > > diff --git a/drivers/serial/serial_ns16550.c b/drivers/serial/serial_ns16550.c > index 5d6cec82a..f117ab9dc 100644 > --- a/drivers/serial/serial_ns16550.c > +++ b/drivers/serial/serial_ns16550.c > @@ -308,6 +308,17 @@ static int ns16550_tstc(struct console_device *cdev) > return ((ns16550_read(cdev, lsr) & LSR_DR) != 0); > } > > +/** > + * @brief Flush remaining characters in serial device > + * > + * @param[in] cdev pointer to console device > + */ > +static void ns16550_flush(struct console_device *cdev) > +{ > + /* Loop Doing Nothing */ > + while ((ns16550_read(cdev, lsr) & LSR_TEMT) == 0) ; > +} > + > static void ns16550_probe_dt(struct device_d *dev, struct ns16550_priv *priv) > { > struct device_node *np = dev->device_node; > @@ -501,6 +512,7 @@ static int ns16550_probe(struct device_d *dev) > cdev->putc = ns16550_putc; > cdev->getc = ns16550_getc; > cdev->setbrg = ns16550_setbaudrate; > + cdev->flush = ns16550_flush; > cdev->linux_console_name = devtype->linux_console_name; > > priv->fcrval = FCRVAL; > -- > 2.26.2 > > > _______________________________________________ > barebox mailing list > barebox@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/barebox > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox