From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heikki Krogerus Subject: [PATCH 2/2] serial: of_serial: Handle fifosize property Date: Thu, 21 Mar 2013 12:48:00 +0200 Message-ID: <1363862880-17295-1-git-send-email-heikki.krogerus@linux.intel.com> References: <20130321104651.GC2862@xps8300> Return-path: Received: from mga09.intel.com ([134.134.136.24]:46084 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754214Ab3CUKsH (ORCPT ); Thu, 21 Mar 2013 06:48:07 -0400 In-Reply-To: <20130321104651.GC2862@xps8300> Sender: linux-serial-owner@vger.kernel.org List-Id: linux-serial@vger.kernel.org To: Ley Foon Tan , Greg Kroah-Hartman Cc: Jiri Slaby , Rob Landley , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org fifosize property is already used with a number of serial devices. This should reduce the need for extra types in 8250.c just in case the fifosize differs from the standard. Signed-off-by: Heikki Krogerus --- Documentation/devicetree/bindings/tty/serial/of-serial.txt | 1 + drivers/tty/serial/of_serial.c | 4 ++++ 2 files changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/tty/serial/of-serial.txt b/Documentation/devicetree/bindings/tty/serial/of-serial.txt index 8f01cb1..55fe4e7 100644 --- a/Documentation/devicetree/bindings/tty/serial/of-serial.txt +++ b/Documentation/devicetree/bindings/tty/serial/of-serial.txt @@ -33,6 +33,7 @@ Optional properties: RTAS and should not be registered. - no-loopback-test: set to indicate that the port does not implements loopback test mode +- fifosize: the fifo size of the UART. Example: diff --git a/drivers/tty/serial/of_serial.c b/drivers/tty/serial/of_serial.c index b025d54..4f89761 100644 --- a/drivers/tty/serial/of_serial.c +++ b/drivers/tty/serial/of_serial.c @@ -97,6 +97,10 @@ static int of_platform_serial_setup(struct platform_device *ofdev, if (of_property_read_u32(np, "reg-shift", &prop) == 0) port->regshift = prop; + /* Check for fifo size */ + if (of_property_read_u32(np, "fifosize", &prop) == 0) + port->fifosize = prop; + port->irq = irq_of_parse_and_map(np, 0); port->iotype = UPIO_MEM; if (of_property_read_u32(np, "reg-io-width", &prop) == 0) { -- 1.7.10.4