diff mbox

[v2] gpio-exar: Use correct property prefix and document bindings

Message ID dd5bb6b5-a6a7-a799-581f-b5fb83aa677b@siemens.com
State New
Headers show

Commit Message

Jan Kiszka July 19, 2017, 5:31 a.m. UTC
The device-specific property should be prefixed with the vendor name,
not "linux,", as Linus Walleij pointed out. Change this and document the
bindings of this platform device.

We didn't ship the old binding in a release yet. So we can still change
it without breaking an official API.

Fixes: 380b1e2f3a2f ("gpio-exar/8250-exar: Make set of exported GPIOs configurable")

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
 Documentation/devicetree/bindings/gpio/gpio-exar.txt | 5 +++++
 drivers/gpio/gpio-exar.c                             | 2 +-
 drivers/tty/serial/8250/8250_exar.c                  | 4 ++--
 3 files changed, 8 insertions(+), 3 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/gpio/gpio-exar.txt

Comments

Rob Herring July 24, 2017, 7:06 p.m. UTC | #1
On Wed, Jul 19, 2017 at 07:31:14AM +0200, Jan Kiszka wrote:
> The device-specific property should be prefixed with the vendor name,
> not "linux,", as Linus Walleij pointed out. Change this and document the
> bindings of this platform device.
> 
> We didn't ship the old binding in a release yet. So we can still change
> it without breaking an official API.
> 
> Fixes: 380b1e2f3a2f ("gpio-exar/8250-exar: Make set of exported GPIOs configurable")
> 
> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
> ---
>  Documentation/devicetree/bindings/gpio/gpio-exar.txt | 5 +++++
>  drivers/gpio/gpio-exar.c                             | 2 +-
>  drivers/tty/serial/8250/8250_exar.c                  | 4 ++--
>  3 files changed, 8 insertions(+), 3 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/gpio/gpio-exar.txt

Acked-by: Rob Herring <robh@kernel.org>
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Linus Walleij Aug. 1, 2017, 11:44 a.m. UTC | #2
On Wed, Jul 19, 2017 at 7:31 AM, Jan Kiszka <jan.kiszka@siemens.com> wrote:

> The device-specific property should be prefixed with the vendor name,
> not "linux,", as Linus Walleij pointed out. Change this and document the
> bindings of this platform device.
>
> We didn't ship the old binding in a release yet. So we can still change
> it without breaking an official API.
>
> Fixes: 380b1e2f3a2f ("gpio-exar/8250-exar: Make set of exported GPIOs configurable")
>
> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

Patch applied for fixes with Rob's ACK, nice fixup!

Yours,
Linus Walleij
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diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/gpio/gpio-exar.txt b/Documentation/devicetree/bindings/gpio/gpio-exar.txt
new file mode 100644
index 000000000000..4540d61824af
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-exar.txt
@@ -0,0 +1,5 @@ 
+Exportable MPIO interface of Exar UART chips
+
+Required properties of the device:
+ - exar,first-pin: first exportable pins (0..15)
+ - ngpios: number of exportable pins (1..16)
diff --git a/drivers/gpio/gpio-exar.c b/drivers/gpio/gpio-exar.c
index fb8d304cfa17..0ecd2369c2ca 100644
--- a/drivers/gpio/gpio-exar.c
+++ b/drivers/gpio/gpio-exar.c
@@ -132,7 +132,7 @@  static int gpio_exar_probe(struct platform_device *pdev)
 	if (!p)
 		return -ENOMEM;
 
-	ret = device_property_read_u32(&pdev->dev, "linux,first-pin",
+	ret = device_property_read_u32(&pdev->dev, "exar,first-pin",
 				       &first_pin);
 	if (ret)
 		return ret;
diff --git a/drivers/tty/serial/8250/8250_exar.c b/drivers/tty/serial/8250/8250_exar.c
index b5c98e5bf524..c6360fbdf808 100644
--- a/drivers/tty/serial/8250/8250_exar.c
+++ b/drivers/tty/serial/8250/8250_exar.c
@@ -261,7 +261,7 @@  __xr17v35x_register_gpio(struct pci_dev *pcidev,
 }
 
 static const struct property_entry exar_gpio_properties[] = {
-	PROPERTY_ENTRY_U32("linux,first-pin", 0),
+	PROPERTY_ENTRY_U32("exar,first-pin", 0),
 	PROPERTY_ENTRY_U32("ngpios", 16),
 	{ }
 };
@@ -326,7 +326,7 @@  static int iot2040_rs485_config(struct uart_port *port,
 }
 
 static const struct property_entry iot2040_gpio_properties[] = {
-	PROPERTY_ENTRY_U32("linux,first-pin", 10),
+	PROPERTY_ENTRY_U32("exar,first-pin", 10),
 	PROPERTY_ENTRY_U32("ngpios", 1),
 	{ }
 };