From: Hugo Villeneuve <hvilleneuve@xxxxxxxxxxxx> Vendor prefix "nxp," will be added in an upcoming commit to DT binding property "irda-mode-ports". Prepare to recognize this new property "nxp,irda-mode-ports" and retain backward compatibility with old DTBs by falling back to "irda-mode-ports" when needed. Signed-off-by: Hugo Villeneuve <hvilleneuve@xxxxxxxxxxxx> --- drivers/tty/serial/sc16is7xx.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index db2bb1c0d36c..b0154e901358 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -1415,13 +1415,19 @@ static void sc16is7xx_setup_irda_ports(struct sc16is7xx_port *s) int count; u32 irda_port[2]; struct device *dev = s->p[0].port.dev; + const char *prop_name = "nxp,irda-mode-ports"; + + count = device_property_count_u32(dev, prop_name); + if (count < 0) { + /* For backward compatibility with old DTBs. */ + prop_name = "irda-mode-ports"; + count = device_property_count_u32(dev, prop_name); + } - count = device_property_count_u32(dev, "irda-mode-ports"); if (count < 0 || count > ARRAY_SIZE(irda_port)) return; - ret = device_property_read_u32_array(dev, "irda-mode-ports", - irda_port, count); + ret = device_property_read_u32_array(dev, prop_name, irda_port, count); if (ret) return; -- 2.30.2