From mboxrd@z Thu Jan 1 00:00:00 1970 From: Subject: [PATCH 2/4] serial: 8250: of: Load TX FIFO Load Size from DT Date: Thu, 8 Sep 2016 11:12:19 -0500 Message-ID: <1473351141-9239-3-git-send-email-tthayer@opensource.altera.com> References: <1473351141-9239-1-git-send-email-tthayer@opensource.altera.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1473351141-9239-1-git-send-email-tthayer@opensource.altera.com> Sender: linux-kernel-owner@vger.kernel.org To: gregkh@linuxfoundation.org, robh+dt@kernel.org, mark.rutland@arm.com, lftan@altera.com, jslaby@suse.com, arnd@arndb.de, peter@hurleysoftware.com, andriy.shevchenko@linux.intel.com, anton.wuerfel@fau.de, phillip.raffeck@fau.de, yegorslists@googlemail.com, matwey@sai.msu.ru, mail@maciej.szmigiero.name Cc: peter.ujfalusi@ti.com, jonathanh@nvidia.com, dongsheng.wang@nxp.com, luis@debethencourt.com, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, devicetree@vger.kernel.org, tthayer.linux@gmail.com, tthayer@opensource.altera.com, nios2-dev@lists.rocketboards.org List-Id: devicetree@vger.kernel.org From: Thor Thayer Initialize the tx_loadsz parameter if it is defined in the device tree. Signed-off-by: Thor Thayer --- drivers/tty/serial/8250/8250_of.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/tty/serial/8250/8250_of.c b/drivers/tty/serial/8250/8250_of.c index 38963d7..3e4be2f 100644 --- a/drivers/tty/serial/8250/8250_of.c +++ b/drivers/tty/serial/8250/8250_of.c @@ -195,6 +195,7 @@ static int of_platform_serial_probe(struct platform_device *ofdev) switch (port_type) { case PORT_8250 ... PORT_MAX_8250: { + u32 prop; struct uart_8250_port port8250; memset(&port8250, 0, sizeof(port8250)); port8250.port = port; @@ -202,6 +203,11 @@ static int of_platform_serial_probe(struct platform_device *ofdev) if (port.fifosize) port8250.capabilities = UART_CAP_FIFO; + /* Check for TX fifo load size */ + if (of_property_read_u32(ofdev->dev.of_node, + "tx-loadsz", &prop) == 0) + port8250.tx_loadsz = prop; + if (of_property_read_bool(ofdev->dev.of_node, "auto-flow-control")) port8250.capabilities |= UART_CAP_AFE; -- 1.7.9.5