diff mbox

[v2,2/9] net: arc_emac: add phy reset is optional for device tree

Message ID 1457860062-5514-3-git-send-email-wxt@rock-chips.com (mailing list archive)
State New, archived
Headers show

Commit Message

Caesar Wang March 13, 2016, 9:07 a.m. UTC
This patch adds the following property for arc_emac.

1) reset-gpios:
The phy reset-gpio is an optional property for arc emac device tree boot.
Change the binding document to match the driver code.

2) phy-reset-duration:
Different boards may require different phy reset duration. Add property
phy-reset-duration for device tree probe, so that the boards that need
a longer reset duration can specify it in their device tree.

Anyway, we can add the above property for arc emac.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
---

Changes in v2: None

 Documentation/devicetree/bindings/net/arc_emac.txt | 7 +++++++
 1 file changed, 7 insertions(+)

Comments

Sergei Shtylyov March 13, 2016, 2:30 p.m. UTC | #1
Hello.

On 3/13/2016 12:07 PM, Caesar Wang wrote:

> This patch adds the following property for arc_emac.
>
> 1) reset-gpios:
> The phy reset-gpio is an optional property for arc emac device tree boot.
> Change the binding document to match the driver code.
>
> 2) phy-reset-duration:
> Different boards may require different phy reset duration. Add property
> phy-reset-duration for device tree probe, so that the boards that need
> a longer reset duration can specify it in their device tree.
>
> Anyway, we can add the above property for arc emac.
>
> Signed-off-by: Caesar Wang <wxt@rock-chips.com>
> ---
>
> Changes in v2: None

    Not true -- you renamed the reset prop.

>   Documentation/devicetree/bindings/net/arc_emac.txt | 7 +++++++
>   1 file changed, 7 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/net/arc_emac.txt b/Documentation/devicetree/bindings/net/arc_emac.txt
> index a1d71eb..8e84b52 100644
> --- a/Documentation/devicetree/bindings/net/arc_emac.txt
> +++ b/Documentation/devicetree/bindings/net/arc_emac.txt
> @@ -7,6 +7,13 @@ Required properties:
>   - max-speed: see ethernet.txt file in the same directory.
>   - phy: see ethernet.txt file in the same directory.
>
> +Optional properties:
> +- reset-gpios : Should specify the gpio for phy reset

    Please leave the old name, "phy-reset-gpios" was surely better.

[...]

MBR, Sergei
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/net/arc_emac.txt b/Documentation/devicetree/bindings/net/arc_emac.txt
index a1d71eb..8e84b52 100644
--- a/Documentation/devicetree/bindings/net/arc_emac.txt
+++ b/Documentation/devicetree/bindings/net/arc_emac.txt
@@ -7,6 +7,13 @@  Required properties:
 - max-speed: see ethernet.txt file in the same directory.
 - phy: see ethernet.txt file in the same directory.
 
+Optional properties:
+- reset-gpios : Should specify the gpio for phy reset
+- phy-reset-duration : Reset duration in milliseconds.  Should present
+  only if property "reset-gpios" is available.  Missing the property
+  will have the duration be 1 millisecond.  Numbers greater than 1000 are
+  invalid and 1 millisecond will be used instead.
+
 Clock handling:
 The clock frequency is needed to calculate and set polling period of EMAC.
 It must be provided by one of: