This patch replace custom handling of IrDA feature with N_IRDA
line discipline, so IrDA mode can be used with irtty driver.
Signed-off-by: Alexander Shiyan <shc_work@xxxxxxx>
---
.../bindings/serial/cirrus,clps711x-uart.txt | 1 -
drivers/tty/serial/clps711x.c | 20 ++++++++++++--------
2 files changed, 12 insertions(+), 9 deletions(-)
diff --git a/Documentation/devicetree/bindings/serial/cirrus,clps711x-uart.txt b/Documentation/devicetree/bindings/serial/cirrus,clps711x-uart.txt
index 8bbdd21..12f3cf8 100644
--- a/Documentation/devicetree/bindings/serial/cirrus,clps711x-uart.txt
+++ b/Documentation/devicetree/bindings/serial/cirrus,clps711x-uart.txt
@@ -9,7 +9,6 @@ Required properties:
Optional properties:
- uart-use-ms: Indicate the UART has modem signal (DCD, DSR, CTS).
-- uart-use-irda: Indicate the UART use IRDA mode.
Note: Each UART port should have an alias correctly numbered
in "aliases" node.
diff --git a/drivers/tty/serial/clps711x.c b/drivers/tty/serial/clps711x.c
index 4f59f1c..5a931f9 100644
--- a/drivers/tty/serial/clps711x.c
+++ b/drivers/tty/serial/clps711x.c
@@ -232,6 +232,16 @@ static void uart_clps711x_break_ctl(struct uart_port *port, int break_state)
writel_relaxed(ubrlcr, port->membase + UBRLCR_OFFSET);
}
+static void uart_clps711x_set_ldisc(struct uart_port *port, int ld)
+{
+ if (!port->line) {
+ struct clps711x_port *s = dev_get_drvdata(port->dev);
+
+ regmap_update_bits(s->syscon, SYSCON_OFFSET, SYSCON1_SIREN,
+ (ld == N_IRDA) ? SYSCON1_SIREN : 0);
+ }
+}
+
static int uart_clps711x_startup(struct uart_port *port)
{
struct clps711x_port *s = dev_get_drvdata(port->dev);
@@ -342,6 +352,7 @@ static const struct uart_ops uart_clps711x_ops = {
.stop_rx = uart_clps711x_nop_void,
.enable_ms = uart_clps711x_nop_void,
.break_ctl = uart_clps711x_break_ctl,
+ .set_ldisc = uart_clps711x_set_ldisc,
.startup = uart_clps711x_startup,
.shutdown = uart_clps711x_shutdown,
.set_termios = uart_clps711x_set_termios,
@@ -482,15 +493,8 @@ static int uart_clps711x_probe(struct platform_device *pdev)
if (IS_ERR(s->syscon))
return PTR_ERR(s->syscon);
- if (!index) {
- bool use_irda;
-
+ if (!index)
s->use_ms = of_property_read_bool(np, "uart-use-ms");
- use_irda = of_property_read_bool(np, "uart-use-irda");
- regmap_update_bits(s->syscon, SYSCON_OFFSET,
- SYSCON1_SIREN,
- use_irda ? SYSCON1_SIREN : 0);
- }
}
s->port.line = index;
--
1.8.3.2
--
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