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Commit 7f60830a authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Greg Kroah-Hartman
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serial: sirf: Use generic uart-has-rtscts DT property 



Convert the SiRF UART driver from using the vendor-specific
"sirf,uart-has-rtscts" to the generic "uart-has-rtscts" DT property, as
documented by the Generic Serial DT Bindings.

The old vendor-specific property is still recognized by the driver for
backwards compatibility, but deprecated.

Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent af99c187

Documentation/devicetree/bindings/serial/sirf-uart.txt

+4 −4
Original line number Diff line number Diff line
@@ -9,9 +9,9 @@ Required properties: 
- clocks : Should contain uart clock number



Optional properties:

- sirf,uart-has-rtscts: we have hardware flow controller pins in hardware

- rts-gpios: RTS pin for USP-based UART if sirf,uart-has-rtscts is true

- cts-gpios: CTS pin for USP-based UART if sirf,uart-has-rtscts is true

- uart-has-rtscts: we have hardware flow controller pins in hardware

- rts-gpios: RTS pin for USP-based UART if uart-has-rtscts is true

- cts-gpios: CTS pin for USP-based UART if uart-has-rtscts is true



Example:
@@ -28,7 +28,7 @@ On the board-specific dts, we can put rts-gpios and cts-gpios like 


usp@b0090000 {

	compatible = "sirf,prima2-usp-uart";

	sirf,uart-has-rtscts;

	uart-has-rtscts;

	rts-gpios = <&gpio 15 0>;

	cts-gpios = <&gpio 46 0>;

};

drivers/tty/serial/sirfsoc_uart.c

+2 −1
Original line number Diff line number Diff line
@@ -1293,7 +1293,8 @@ static int sirfsoc_uart_probe(struct platform_device *pdev) 
	sirfport->uart_reg = (struct sirfsoc_uart_register *)match->data;



	sirfport->hw_flow_ctrl =

		of_property_read_bool(np, "sirf,uart-has-rtscts");

		of_property_read_bool(np, "uart-has-rtscts") ||

		of_property_read_bool(np, "sirf,uart-has-rtscts") /* deprecated */;

	if (of_device_is_compatible(np, "sirf,prima2-uart") ||

		of_device_is_compatible(np, "sirf,atlas7-uart"))

		sirfport->uart_reg->uart_type = SIRF_REAL_UART;