* [PATCH v2 0/5] serial: Add Generic Serial Device Tree Bindings
@ 2016-04-22 15:22 Geert Uytterhoeven
[not found] ` <1461338544-29568-1-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
0 siblings, 1 reply; 16+ messages in thread
From: Geert Uytterhoeven @ 2016-04-22 15:22 UTC (permalink / raw)
To: Greg Kroah-Hartman, Jiri Slaby
Cc: Peter Hurley, Richard Genoud, Arnd Bergmann, Rob Herring,
Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala, Barry Song,
Fabio Estevam, Qipan Li, linux-serial-u79uwXL29TY76Z2rM5mHXA,
devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
Geert Uytterhoeven
Hi Greg, Jiri,
This patch series, against next-20160422, introduces Generic Serial
Device Tree Bindings, and converts drivers using vendor-specific DT
properties to the generic properies where appropriate.
The Generic Serial Device Tree Bindings document a set of generic
properties for describing UARTs in a device tree:
1. The GPIO modem control properties are currently duplicated across
hardware-specific binding documentation,
2. The property for dedicated RTS/CTS hardware flow control lines is
already supported by several drivers, albeit with a vendor-specific
prefix, hence make it generic.
Whether these generic properties apply to a particular device still
depends on the DT bindings of the actual device.
The old (deprecated) vendor-specific properties are still supported by
the drivers for backwards compatibility.
Changes compared to v1:
- Add Acked-by,
- Drop out[12]-gpios from the bindings (a patch to drop it from the
code has been submitted separately).
I will sent out patches to update the actual DTS files later, after this
series has been integrated into mainline. DTS updates typically go
through a different path (e.g. arm-soc), and RTS/CTS support would be
broken if the DTSes would be updated before the drivers.
Thanks for applying!
Geert Uytterhoeven (5):
doc: DT: Add Generic Serial Device Tree Bindings
serial: imx: Use generic uart-has-rtscts DT property
serial: mxs-auart: Use generic uart-has-rtscts DT property
serial: sirf: Introduce helper variable struct device_node *np
serial: sirf: Use generic uart-has-rtscts DT property
.../devicetree/bindings/serial/fsl-imx-uart.txt | 4 +-
.../devicetree/bindings/serial/fsl-mxs-auart.txt | 2 +-
.../devicetree/bindings/serial/serial.txt | 57 ++++++++++++++++++++++
.../devicetree/bindings/serial/sirf-uart.txt | 8 +--
drivers/tty/serial/imx.c | 3 +-
drivers/tty/serial/mxs-auart.c | 3 +-
drivers/tty/serial/sirfsoc_uart.c | 39 ++++++++-------
7 files changed, 87 insertions(+), 29 deletions(-)
create mode 100644 Documentation/devicetree/bindings/serial/serial.txt
--
1.9.1
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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^ permalink raw reply [flat|nested] 16+ messages in thread
* [PATCH v2 1/5] doc: DT: Add Generic Serial Device Tree Bindings
2016-04-22 15:22 [PATCH v2 0/5] serial: Add Generic Serial Device Tree Bindings Geert Uytterhoeven
@ 2016-04-22 15:22 ` Geert Uytterhoeven
0 siblings, 0 replies; 16+ messages in thread
From: Geert Uytterhoeven @ 2016-04-22 15:22 UTC (permalink / raw)
To: Greg Kroah-Hartman, Jiri Slaby
Cc: Peter Hurley, Richard Genoud, Arnd Bergmann, Rob Herring,
Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala, Barry Song,
Fabio Estevam, Qipan Li, linux-serial-u79uwXL29TY76Z2rM5mHXA,
devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
Geert Uytterhoeven
Document a set of generic properties for describing UARTs in a
device tree:
1. The GPIO modem control properties are currently duplicated across
hardware-specific binding documentation,
2. The property for dedicated RTS/CTS hardware flow control lines is
already supported by several drivers, albeit with a vendor-specific
prefix, hence make it generic.
Signed-off-by: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
Acked-by: Rob Herring <rob-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
---
v2:
- Add Acked-by,
- Drop out[12]-gpios.
---
.../devicetree/bindings/serial/serial.txt | 57 ++++++++++++++++++++++
1 file changed, 57 insertions(+)
create mode 100644 Documentation/devicetree/bindings/serial/serial.txt
diff --git a/Documentation/devicetree/bindings/serial/serial.txt b/Documentation/devicetree/bindings/serial/serial.txt
new file mode 100644
index 0000000000000000..fd970f76a7b8ef0c
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/serial.txt
@@ -0,0 +1,57 @@
+Generic Serial DT Bindings
+
+This document lists a set of generic properties for describing UARTs in a
+device tree. Whether these properties apply to a particular device depends on
+the DT bindings for the actual device.
+
+Optional properties:
+ - cts-gpios: Must contain a GPIO specifier, referring to the GPIO pin to be
+ used as the UART's CTS line.
+ - dcd-gpios: Must contain a GPIO specifier, referring to the GPIO pin to be
+ used as the UART's DCD line.
+ - dsr-gpios: Must contain a GPIO specifier, referring to the GPIO pin to be
+ used as the UART's DSR line.
+ - dtr-gpios: Must contain a GPIO specifier, referring to the GPIO pin to be
+ used as the UART's DTR line.
+ - rng-gpios: Must contain a GPIO specifier, referring to the GPIO pin to be
+ used as the UART's RNG line.
+ - rts-gpios: Must contain a GPIO specifier, referring to the GPIO pin to be
+ used as the UART's RTS line.
+
+ - uart-has-rtscts: The presence of this property indicates that the
+ UART has dedicated lines for RTS/CTS hardware flow control, and that
+ they are available for use (wired and enabled by pinmux configuration).
+ This depends on both the UART hardware and the board wiring.
+ Note that this property is mutually-exclusive with "cts-gpios" and
+ "rts-gpios" above.
+
+
+Examples:
+
+ uart1: serial@48022000 {
+ compatible = "ti,am3352-uart", "ti,omap3-uart";
+ ti,hwmods = "uart2";
+ clock-frequency = <48000000>;
+ reg = <0x48022000 0x2000>;
+ interrupts = <73>;
+ dmas = <&edma 28 0>, <&edma 29 0>;
+ dma-names = "tx", "rx";
+ dtr-gpios = <&gpio2 22 GPIO_ACTIVE_LOW>;
+ dsr-gpios = <&gpio2 23 GPIO_ACTIVE_LOW>;
+ dcd-gpios = <&gpio2 24 GPIO_ACTIVE_LOW>;
+ rng-gpios = <&gpio2 25 GPIO_ACTIVE_LOW>;
+ cts-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
+ rts-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
+ status = "okay";
+ };
+
+ scifa4: serial@e6c80000 {
+ compatible = "renesas,scifa-sh73a0", "renesas,scifa";
+ reg = <0xe6c80000 0x100>;
+ interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&mstp2_clks SH73A0_CLK_SCIFA4>;
+ clock-names = "fck";
+ power-domains = <&pd_a3sp>;
+ uart-has-rtscts;
+ status = "okay";
+ };
--
1.9.1
--
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^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH v2 1/5] doc: DT: Add Generic Serial Device Tree Bindings
@ 2016-04-22 15:22 ` Geert Uytterhoeven
0 siblings, 0 replies; 16+ messages in thread
From: Geert Uytterhoeven @ 2016-04-22 15:22 UTC (permalink / raw)
To: linux-arm-kernel
Document a set of generic properties for describing UARTs in a
device tree:
1. The GPIO modem control properties are currently duplicated across
hardware-specific binding documentation,
2. The property for dedicated RTS/CTS hardware flow control lines is
already supported by several drivers, albeit with a vendor-specific
prefix, hence make it generic.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <rob@kernel.org>
---
v2:
- Add Acked-by,
- Drop out[12]-gpios.
---
.../devicetree/bindings/serial/serial.txt | 57 ++++++++++++++++++++++
1 file changed, 57 insertions(+)
create mode 100644 Documentation/devicetree/bindings/serial/serial.txt
diff --git a/Documentation/devicetree/bindings/serial/serial.txt b/Documentation/devicetree/bindings/serial/serial.txt
new file mode 100644
index 0000000000000000..fd970f76a7b8ef0c
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/serial.txt
@@ -0,0 +1,57 @@
+Generic Serial DT Bindings
+
+This document lists a set of generic properties for describing UARTs in a
+device tree. Whether these properties apply to a particular device depends on
+the DT bindings for the actual device.
+
+Optional properties:
+ - cts-gpios: Must contain a GPIO specifier, referring to the GPIO pin to be
+ used as the UART's CTS line.
+ - dcd-gpios: Must contain a GPIO specifier, referring to the GPIO pin to be
+ used as the UART's DCD line.
+ - dsr-gpios: Must contain a GPIO specifier, referring to the GPIO pin to be
+ used as the UART's DSR line.
+ - dtr-gpios: Must contain a GPIO specifier, referring to the GPIO pin to be
+ used as the UART's DTR line.
+ - rng-gpios: Must contain a GPIO specifier, referring to the GPIO pin to be
+ used as the UART's RNG line.
+ - rts-gpios: Must contain a GPIO specifier, referring to the GPIO pin to be
+ used as the UART's RTS line.
+
+ - uart-has-rtscts: The presence of this property indicates that the
+ UART has dedicated lines for RTS/CTS hardware flow control, and that
+ they are available for use (wired and enabled by pinmux configuration).
+ This depends on both the UART hardware and the board wiring.
+ Note that this property is mutually-exclusive with "cts-gpios" and
+ "rts-gpios" above.
+
+
+Examples:
+
+ uart1: serial at 48022000 {
+ compatible = "ti,am3352-uart", "ti,omap3-uart";
+ ti,hwmods = "uart2";
+ clock-frequency = <48000000>;
+ reg = <0x48022000 0x2000>;
+ interrupts = <73>;
+ dmas = <&edma 28 0>, <&edma 29 0>;
+ dma-names = "tx", "rx";
+ dtr-gpios = <&gpio2 22 GPIO_ACTIVE_LOW>;
+ dsr-gpios = <&gpio2 23 GPIO_ACTIVE_LOW>;
+ dcd-gpios = <&gpio2 24 GPIO_ACTIVE_LOW>;
+ rng-gpios = <&gpio2 25 GPIO_ACTIVE_LOW>;
+ cts-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
+ rts-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
+ status = "okay";
+ };
+
+ scifa4: serial at e6c80000 {
+ compatible = "renesas,scifa-sh73a0", "renesas,scifa";
+ reg = <0xe6c80000 0x100>;
+ interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&mstp2_clks SH73A0_CLK_SCIFA4>;
+ clock-names = "fck";
+ power-domains = <&pd_a3sp>;
+ uart-has-rtscts;
+ status = "okay";
+ };
--
1.9.1
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH v2 2/5] serial: imx: Use generic uart-has-rtscts DT property
2016-04-22 15:22 [PATCH v2 0/5] serial: Add Generic Serial Device Tree Bindings Geert Uytterhoeven
@ 2016-04-22 15:22 ` Geert Uytterhoeven
0 siblings, 0 replies; 16+ messages in thread
From: Geert Uytterhoeven @ 2016-04-22 15:22 UTC (permalink / raw)
To: Greg Kroah-Hartman, Jiri Slaby
Cc: Peter Hurley, Richard Genoud, Arnd Bergmann, Rob Herring,
Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala, Barry Song,
Fabio Estevam, Qipan Li, linux-serial-u79uwXL29TY76Z2rM5mHXA,
devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
Geert Uytterhoeven
Convert the Freescale IMX UART driver from using the vendor-specific
"fsl,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: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
---
v2:
- No changes.
Documentation/devicetree/bindings/serial/fsl-imx-uart.txt | 4 ++--
drivers/tty/serial/imx.c | 3 ++-
2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
index ed94c217c98d18a6..1e82802d8e322db5 100644
--- a/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
+++ b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
@@ -6,7 +6,7 @@ Required properties:
- interrupts : Should contain uart interrupt
Optional properties:
-- fsl,uart-has-rtscts : Indicate the uart has rts and cts
+- uart-has-rtscts : Indicate the uart has rts and cts
- fsl,irda-mode : Indicate the uart supports irda mode
- fsl,dte-mode : Indicate the uart works in DTE mode. The uart works
in DCE mode by default.
@@ -24,6 +24,6 @@ uart1: serial@73fbc000 {
compatible = "fsl,imx51-uart", "fsl,imx21-uart";
reg = <0x73fbc000 0x4000>;
interrupts = <31>;
- fsl,uart-has-rtscts;
+ uart-has-rtscts;
fsl,dte-mode;
};
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 231e7d5caf6c1845..9fc09d3de1e2428b 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1927,7 +1927,8 @@ static int serial_imx_probe_dt(struct imx_port *sport,
}
sport->port.line = ret;
- if (of_get_property(np, "fsl,uart-has-rtscts", NULL))
+ if (of_get_property(np, "uart-has-rtscts", NULL) ||
+ of_get_property(np, "fsl,uart-has-rtscts", NULL) /* deprecated */)
sport->have_rtscts = 1;
if (of_get_property(np, "fsl,dte-mode", NULL))
--
1.9.1
--
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^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH v2 2/5] serial: imx: Use generic uart-has-rtscts DT property
@ 2016-04-22 15:22 ` Geert Uytterhoeven
0 siblings, 0 replies; 16+ messages in thread
From: Geert Uytterhoeven @ 2016-04-22 15:22 UTC (permalink / raw)
To: linux-arm-kernel
Convert the Freescale IMX UART driver from using the vendor-specific
"fsl,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: Geert Uytterhoeven <geert+renesas@glider.be>
---
v2:
- No changes.
Documentation/devicetree/bindings/serial/fsl-imx-uart.txt | 4 ++--
drivers/tty/serial/imx.c | 3 ++-
2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
index ed94c217c98d18a6..1e82802d8e322db5 100644
--- a/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
+++ b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
@@ -6,7 +6,7 @@ Required properties:
- interrupts : Should contain uart interrupt
Optional properties:
-- fsl,uart-has-rtscts : Indicate the uart has rts and cts
+- uart-has-rtscts : Indicate the uart has rts and cts
- fsl,irda-mode : Indicate the uart supports irda mode
- fsl,dte-mode : Indicate the uart works in DTE mode. The uart works
in DCE mode by default.
@@ -24,6 +24,6 @@ uart1: serial at 73fbc000 {
compatible = "fsl,imx51-uart", "fsl,imx21-uart";
reg = <0x73fbc000 0x4000>;
interrupts = <31>;
- fsl,uart-has-rtscts;
+ uart-has-rtscts;
fsl,dte-mode;
};
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 231e7d5caf6c1845..9fc09d3de1e2428b 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1927,7 +1927,8 @@ static int serial_imx_probe_dt(struct imx_port *sport,
}
sport->port.line = ret;
- if (of_get_property(np, "fsl,uart-has-rtscts", NULL))
+ if (of_get_property(np, "uart-has-rtscts", NULL) ||
+ of_get_property(np, "fsl,uart-has-rtscts", NULL) /* deprecated */)
sport->have_rtscts = 1;
if (of_get_property(np, "fsl,dte-mode", NULL))
--
1.9.1
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH v2 3/5] serial: mxs-auart: Use generic uart-has-rtscts DT property
[not found] ` <1461338544-29568-1-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
2016-04-22 15:22 ` Geert Uytterhoeven
2016-04-22 15:22 ` Geert Uytterhoeven
@ 2016-04-22 15:22 ` Geert Uytterhoeven
[not found] ` <1461338544-29568-4-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
2016-04-22 15:22 ` [PATCH v2 4/5] serial: sirf: Introduce helper variable struct device_node *np Geert Uytterhoeven
2016-04-22 15:22 ` [PATCH v2 5/5] serial: sirf: Use generic uart-has-rtscts DT property Geert Uytterhoeven
4 siblings, 1 reply; 16+ messages in thread
From: Geert Uytterhoeven @ 2016-04-22 15:22 UTC (permalink / raw)
To: Greg Kroah-Hartman, Jiri Slaby
Cc: Peter Hurley, Richard Genoud, Arnd Bergmann, Rob Herring,
Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala, Barry Song,
Fabio Estevam, Qipan Li, linux-serial-u79uwXL29TY76Z2rM5mHXA,
devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
Geert Uytterhoeven
Convert the Freescale MXS AUART driver from using the vendor-specific
"fsl,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 it is deprecated.
Signed-off-by: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
---
v2:
- No changes.
Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt | 2 +-
drivers/tty/serial/mxs-auart.c | 3 ++-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt b/Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt
index 7c408c87e6138979..9ba60c14047a0be8 100644
--- a/Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt
+++ b/Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt
@@ -11,7 +11,7 @@ Required properties:
- dma-names: "rx" for RX channel, "tx" for TX channel.
Optional properties:
-- fsl,uart-has-rtscts : Indicate the UART has RTS and CTS lines
+- uart-has-rtscts : Indicate the UART has RTS and CTS lines
for hardware flow control,
it also means you enable the DMA support for this UART.
- {rts,cts,dtr,dsr,rng,dcd}-gpios: specify a GPIO for RTS/CTS/DTR/DSR/RI/DCD
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index cd0414bbe094898e..c988544f38bbb885 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -1185,7 +1185,8 @@ static int serial_mxs_probe_dt(struct mxs_auart_port *s,
}
s->port.line = ret;
- if (of_get_property(np, "fsl,uart-has-rtscts", NULL))
+ if (of_get_property(np, "uart-has-rtscts", NULL) ||
+ of_get_property(np, "fsl,uart-has-rtscts", NULL) /* deprecated */)
set_bit(MXS_AUART_RTSCTS, &s->flags);
return 0;
--
1.9.1
--
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^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH v2 4/5] serial: sirf: Introduce helper variable struct device_node *np
[not found] ` <1461338544-29568-1-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
` (2 preceding siblings ...)
2016-04-22 15:22 ` [PATCH v2 3/5] serial: mxs-auart: " Geert Uytterhoeven
@ 2016-04-22 15:22 ` Geert Uytterhoeven
2016-04-22 15:22 ` [PATCH v2 5/5] serial: sirf: Use generic uart-has-rtscts DT property Geert Uytterhoeven
4 siblings, 0 replies; 16+ messages in thread
From: Geert Uytterhoeven @ 2016-04-22 15:22 UTC (permalink / raw)
To: Greg Kroah-Hartman, Jiri Slaby
Cc: Peter Hurley, Richard Genoud, Arnd Bergmann, Rob Herring,
Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala, Barry Song,
Fabio Estevam, Qipan Li, linux-serial-u79uwXL29TY76Z2rM5mHXA,
devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
Geert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
---
v2:
- No changes.
drivers/tty/serial/sirfsoc_uart.c | 38 ++++++++++++++++++--------------------
1 file changed, 18 insertions(+), 20 deletions(-)
diff --git a/drivers/tty/serial/sirfsoc_uart.c b/drivers/tty/serial/sirfsoc_uart.c
index c6657de789977c90..1d1c0b9857ff6900 100644
--- a/drivers/tty/serial/sirfsoc_uart.c
+++ b/drivers/tty/serial/sirfsoc_uart.c
@@ -1264,6 +1264,7 @@ MODULE_DEVICE_TABLE(of, sirfsoc_uart_ids);
static int sirfsoc_uart_probe(struct platform_device *pdev)
{
+ struct device_node *np = pdev->dev.of_node;
struct sirfsoc_uart_port *sirfport;
struct uart_port *port;
struct resource *res;
@@ -1276,13 +1277,13 @@ static int sirfsoc_uart_probe(struct platform_device *pdev)
};
const struct of_device_id *match;
- match = of_match_node(sirfsoc_uart_ids, pdev->dev.of_node);
+ match = of_match_node(sirfsoc_uart_ids, np);
sirfport = devm_kzalloc(&pdev->dev, sizeof(*sirfport), GFP_KERNEL);
if (!sirfport) {
ret = -ENOMEM;
goto err;
}
- sirfport->port.line = of_alias_get_id(pdev->dev.of_node, "serial");
+ sirfport->port.line = of_alias_get_id(np, "serial");
sirf_ports[sirfport->port.line] = sirfport;
sirfport->port.iotype = UPIO_MEM;
sirfport->port.flags = UPF_BOOT_AUTOCONF;
@@ -1291,25 +1292,24 @@ static int sirfsoc_uart_probe(struct platform_device *pdev)
port->private_data = sirfport;
sirfport->uart_reg = (struct sirfsoc_uart_register *)match->data;
- sirfport->hw_flow_ctrl = of_property_read_bool(pdev->dev.of_node,
- "sirf,uart-has-rtscts");
- if (of_device_is_compatible(pdev->dev.of_node, "sirf,prima2-uart") ||
- of_device_is_compatible(pdev->dev.of_node, "sirf,atlas7-uart"))
+ sirfport->hw_flow_ctrl =
+ of_property_read_bool(np, "sirf,uart-has-rtscts");
+ 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;
- if (of_device_is_compatible(pdev->dev.of_node,
- "sirf,prima2-usp-uart") || of_device_is_compatible(
- pdev->dev.of_node, "sirf,atlas7-usp-uart")) {
+ if (of_device_is_compatible(np, "sirf,prima2-usp-uart") ||
+ of_device_is_compatible(np, "sirf,atlas7-usp-uart")) {
sirfport->uart_reg->uart_type = SIRF_USP_UART;
if (!sirfport->hw_flow_ctrl)
goto usp_no_flow_control;
- if (of_find_property(pdev->dev.of_node, "cts-gpios", NULL))
- sirfport->cts_gpio = of_get_named_gpio(
- pdev->dev.of_node, "cts-gpios", 0);
+ if (of_find_property(np, "cts-gpios", NULL))
+ sirfport->cts_gpio =
+ of_get_named_gpio(np, "cts-gpios", 0);
else
sirfport->cts_gpio = -1;
- if (of_find_property(pdev->dev.of_node, "rts-gpios", NULL))
- sirfport->rts_gpio = of_get_named_gpio(
- pdev->dev.of_node, "rts-gpios", 0);
+ if (of_find_property(np, "rts-gpios", NULL))
+ sirfport->rts_gpio =
+ of_get_named_gpio(np, "rts-gpios", 0);
else
sirfport->rts_gpio = -1;
@@ -1336,13 +1336,11 @@ static int sirfsoc_uart_probe(struct platform_device *pdev)
gpio_direction_output(sirfport->rts_gpio, 1);
}
usp_no_flow_control:
- if (of_device_is_compatible(pdev->dev.of_node, "sirf,atlas7-uart") ||
- of_device_is_compatible(pdev->dev.of_node, "sirf,atlas7-usp-uart"))
+ if (of_device_is_compatible(np, "sirf,atlas7-uart") ||
+ of_device_is_compatible(np, "sirf,atlas7-usp-uart"))
sirfport->is_atlas7 = true;
- if (of_property_read_u32(pdev->dev.of_node,
- "fifosize",
- &port->fifosize)) {
+ if (of_property_read_u32(np, "fifosize", &port->fifosize)) {
dev_err(&pdev->dev,
"Unable to find fifosize in uart node.\n");
ret = -EFAULT;
--
1.9.1
--
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^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH v2 5/5] serial: sirf: Use generic uart-has-rtscts DT property
[not found] ` <1461338544-29568-1-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
` (3 preceding siblings ...)
2016-04-22 15:22 ` [PATCH v2 4/5] serial: sirf: Introduce helper variable struct device_node *np Geert Uytterhoeven
@ 2016-04-22 15:22 ` Geert Uytterhoeven
[not found] ` <1461338544-29568-6-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
4 siblings, 1 reply; 16+ messages in thread
From: Geert Uytterhoeven @ 2016-04-22 15:22 UTC (permalink / raw)
To: Greg Kroah-Hartman, Jiri Slaby
Cc: Peter Hurley, Richard Genoud, Arnd Bergmann, Rob Herring,
Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala, Barry Song,
Fabio Estevam, Qipan Li, linux-serial-u79uwXL29TY76Z2rM5mHXA,
devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
Geert Uytterhoeven
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: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
---
v2:
- No changes.
Documentation/devicetree/bindings/serial/sirf-uart.txt | 8 ++++----
drivers/tty/serial/sirfsoc_uart.c | 3 ++-
2 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/Documentation/devicetree/bindings/serial/sirf-uart.txt b/Documentation/devicetree/bindings/serial/sirf-uart.txt
index 67e2a0aeb0429572..1e48bbbeecc6dd27 100644
--- a/Documentation/devicetree/bindings/serial/sirf-uart.txt
+++ b/Documentation/devicetree/bindings/serial/sirf-uart.txt
@@ -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>;
};
diff --git a/drivers/tty/serial/sirfsoc_uart.c b/drivers/tty/serial/sirfsoc_uart.c
index 1d1c0b9857ff6900..b186c9c4f850cc16 100644
--- a/drivers/tty/serial/sirfsoc_uart.c
+++ b/drivers/tty/serial/sirfsoc_uart.c
@@ -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;
--
1.9.1
--
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^ permalink raw reply related [flat|nested] 16+ messages in thread
* Re: [PATCH v2 1/5] doc: DT: Add Generic Serial Device Tree Bindings
2016-04-22 15:22 ` Geert Uytterhoeven
@ 2016-04-22 16:39 ` Arnd Bergmann
-1 siblings, 0 replies; 16+ messages in thread
From: Arnd Bergmann @ 2016-04-22 16:39 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r
Cc: Geert Uytterhoeven, Greg Kroah-Hartman, Jiri Slaby, Mark Rutland,
devicetree-u79uwXL29TY76Z2rM5mHXA, Barry Song, Qipan Li,
Peter Hurley, Pawel Moll, Ian Campbell, Richard Genoud,
Rob Herring, linux-serial-u79uwXL29TY76Z2rM5mHXA, Kumar Gala,
Fabio Estevam
On Friday 22 April 2016 17:22:20 Geert Uytterhoeven wrote:
> Document a set of generic properties for describing UARTs in a
> device tree:
> 1. The GPIO modem control properties are currently duplicated across
> hardware-specific binding documentation,
> 2. The property for dedicated RTS/CTS hardware flow control lines is
> already supported by several drivers, albeit with a vendor-specific
> prefix, hence make it generic.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
> Acked-by: Rob Herring <rob-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
>
Acked-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
--
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^ permalink raw reply [flat|nested] 16+ messages in thread
* [PATCH v2 1/5] doc: DT: Add Generic Serial Device Tree Bindings
@ 2016-04-22 16:39 ` Arnd Bergmann
0 siblings, 0 replies; 16+ messages in thread
From: Arnd Bergmann @ 2016-04-22 16:39 UTC (permalink / raw)
To: linux-arm-kernel
On Friday 22 April 2016 17:22:20 Geert Uytterhoeven wrote:
> Document a set of generic properties for describing UARTs in a
> device tree:
> 1. The GPIO modem control properties are currently duplicated across
> hardware-specific binding documentation,
> 2. The property for dedicated RTS/CTS hardware flow control lines is
> already supported by several drivers, albeit with a vendor-specific
> prefix, hence make it generic.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> Acked-by: Rob Herring <rob@kernel.org>
>
Acked-by: Arnd Bergmann <arnd@arndb.de>
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH v2 2/5] serial: imx: Use generic uart-has-rtscts DT property
2016-04-22 15:22 ` Geert Uytterhoeven
@ 2016-04-25 12:50 ` Rob Herring
-1 siblings, 0 replies; 16+ messages in thread
From: Rob Herring @ 2016-04-25 12:50 UTC (permalink / raw)
To: Geert Uytterhoeven
Cc: Greg Kroah-Hartman, Jiri Slaby, Peter Hurley, Richard Genoud,
Arnd Bergmann, Pawel Moll, Mark Rutland, Ian Campbell,
Kumar Gala, Barry Song, Fabio Estevam, Qipan Li,
linux-serial-u79uwXL29TY76Z2rM5mHXA,
devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r
On Fri, Apr 22, 2016 at 05:22:21PM +0200, Geert Uytterhoeven wrote:
> Convert the Freescale IMX UART driver from using the vendor-specific
> "fsl,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: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
> ---
> v2:
> - No changes.
>
> Documentation/devicetree/bindings/serial/fsl-imx-uart.txt | 4 ++--
> drivers/tty/serial/imx.c | 3 ++-
> 2 files changed, 4 insertions(+), 3 deletions(-)
Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
--
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^ permalink raw reply [flat|nested] 16+ messages in thread
* [PATCH v2 2/5] serial: imx: Use generic uart-has-rtscts DT property
@ 2016-04-25 12:50 ` Rob Herring
0 siblings, 0 replies; 16+ messages in thread
From: Rob Herring @ 2016-04-25 12:50 UTC (permalink / raw)
To: linux-arm-kernel
On Fri, Apr 22, 2016 at 05:22:21PM +0200, Geert Uytterhoeven wrote:
> Convert the Freescale IMX UART driver from using the vendor-specific
> "fsl,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: Geert Uytterhoeven <geert+renesas@glider.be>
> ---
> v2:
> - No changes.
>
> Documentation/devicetree/bindings/serial/fsl-imx-uart.txt | 4 ++--
> drivers/tty/serial/imx.c | 3 ++-
> 2 files changed, 4 insertions(+), 3 deletions(-)
Acked-by: Rob Herring <robh@kernel.org>
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH v2 3/5] serial: mxs-auart: Use generic uart-has-rtscts DT property
2016-04-22 15:22 ` [PATCH v2 3/5] serial: mxs-auart: " Geert Uytterhoeven
@ 2016-04-25 12:51 ` Rob Herring
0 siblings, 0 replies; 16+ messages in thread
From: Rob Herring @ 2016-04-25 12:51 UTC (permalink / raw)
To: Geert Uytterhoeven
Cc: Greg Kroah-Hartman, Jiri Slaby, Peter Hurley, Richard Genoud,
Arnd Bergmann, Pawel Moll, Mark Rutland, Ian Campbell,
Kumar Gala, Barry Song, Fabio Estevam, Qipan Li,
linux-serial-u79uwXL29TY76Z2rM5mHXA,
devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r
On Fri, Apr 22, 2016 at 05:22:22PM +0200, Geert Uytterhoeven wrote:
> Convert the Freescale MXS AUART driver from using the vendor-specific
> "fsl,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 it is deprecated.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
> ---
> v2:
> - No changes.
>
> Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt | 2 +-
> drivers/tty/serial/mxs-auart.c | 3 ++-
> 2 files changed, 3 insertions(+), 2 deletions(-)
Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
--
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^ permalink raw reply [flat|nested] 16+ messages in thread
* [PATCH v2 3/5] serial: mxs-auart: Use generic uart-has-rtscts DT property
@ 2016-04-25 12:51 ` Rob Herring
0 siblings, 0 replies; 16+ messages in thread
From: Rob Herring @ 2016-04-25 12:51 UTC (permalink / raw)
To: linux-arm-kernel
On Fri, Apr 22, 2016 at 05:22:22PM +0200, Geert Uytterhoeven wrote:
> Convert the Freescale MXS AUART driver from using the vendor-specific
> "fsl,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 it is deprecated.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> ---
> v2:
> - No changes.
>
> Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt | 2 +-
> drivers/tty/serial/mxs-auart.c | 3 ++-
> 2 files changed, 3 insertions(+), 2 deletions(-)
Acked-by: Rob Herring <robh@kernel.org>
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH v2 5/5] serial: sirf: Use generic uart-has-rtscts DT property
2016-04-22 15:22 ` [PATCH v2 5/5] serial: sirf: Use generic uart-has-rtscts DT property Geert Uytterhoeven
@ 2016-04-25 12:52 ` Rob Herring
0 siblings, 0 replies; 16+ messages in thread
From: Rob Herring @ 2016-04-25 12:52 UTC (permalink / raw)
To: Geert Uytterhoeven
Cc: Greg Kroah-Hartman, Jiri Slaby, Peter Hurley, Richard Genoud,
Arnd Bergmann, Pawel Moll, Mark Rutland, Ian Campbell,
Kumar Gala, Barry Song, Fabio Estevam, Qipan Li,
linux-serial-u79uwXL29TY76Z2rM5mHXA,
devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r
On Fri, Apr 22, 2016 at 05:22:24PM +0200, Geert Uytterhoeven wrote:
> 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: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
> ---
> v2:
> - No changes.
>
> Documentation/devicetree/bindings/serial/sirf-uart.txt | 8 ++++----
> drivers/tty/serial/sirfsoc_uart.c | 3 ++-
> 2 files changed, 6 insertions(+), 5 deletions(-)
Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
--
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^ permalink raw reply [flat|nested] 16+ messages in thread
* [PATCH v2 5/5] serial: sirf: Use generic uart-has-rtscts DT property
@ 2016-04-25 12:52 ` Rob Herring
0 siblings, 0 replies; 16+ messages in thread
From: Rob Herring @ 2016-04-25 12:52 UTC (permalink / raw)
To: linux-arm-kernel
On Fri, Apr 22, 2016 at 05:22:24PM +0200, Geert Uytterhoeven wrote:
> 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: Geert Uytterhoeven <geert+renesas@glider.be>
> ---
> v2:
> - No changes.
>
> Documentation/devicetree/bindings/serial/sirf-uart.txt | 8 ++++----
> drivers/tty/serial/sirfsoc_uart.c | 3 ++-
> 2 files changed, 6 insertions(+), 5 deletions(-)
Acked-by: Rob Herring <robh@kernel.org>
^ permalink raw reply [flat|nested] 16+ messages in thread
end of thread, other threads:[~2016-04-25 12:52 UTC | newest]
Thread overview: 16+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-04-22 15:22 [PATCH v2 0/5] serial: Add Generic Serial Device Tree Bindings Geert Uytterhoeven
[not found] ` <1461338544-29568-1-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
2016-04-22 15:22 ` [PATCH v2 1/5] doc: DT: " Geert Uytterhoeven
2016-04-22 15:22 ` Geert Uytterhoeven
[not found] ` <1461338544-29568-2-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
2016-04-22 16:39 ` Arnd Bergmann
2016-04-22 16:39 ` Arnd Bergmann
2016-04-22 15:22 ` [PATCH v2 2/5] serial: imx: Use generic uart-has-rtscts DT property Geert Uytterhoeven
2016-04-22 15:22 ` Geert Uytterhoeven
[not found] ` <1461338544-29568-3-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
2016-04-25 12:50 ` Rob Herring
2016-04-25 12:50 ` Rob Herring
2016-04-22 15:22 ` [PATCH v2 3/5] serial: mxs-auart: " Geert Uytterhoeven
[not found] ` <1461338544-29568-4-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
2016-04-25 12:51 ` Rob Herring
2016-04-25 12:51 ` Rob Herring
2016-04-22 15:22 ` [PATCH v2 4/5] serial: sirf: Introduce helper variable struct device_node *np Geert Uytterhoeven
2016-04-22 15:22 ` [PATCH v2 5/5] serial: sirf: Use generic uart-has-rtscts DT property Geert Uytterhoeven
[not found] ` <1461338544-29568-6-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
2016-04-25 12:52 ` Rob Herring
2016-04-25 12:52 ` Rob Herring
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