Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1357034

[PATCH v3 2/9] net: arc_emac: add phy reset is optional for device tree

Show all headers | View raw

This patch adds the following property for arc_emac.

1) phy-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>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc; Alexander Kochetkov <al.kochet@gmail.com>

---

Changes in v3:
- As Sergei comments, the original name is better, so
  %s/reset-gpios/phy-reset-gpios
- Add the Cc people.

Changes in v2:
- %s/phy-reset-gpios/reset-gpios

 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..c73a0e9 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:
+- phy-reset-gpios : Should specify the gpio for phy reset
+- phy-reset-duration : Reset duration in milliseconds.  Should present
+  only if property "phy-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:
-- 
1.9.1

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH v3 0/9] arc_emac: fixes the emac issues and cleanup emac drivers Caesar Wang <wxt@rock-chips.com> - 2016-03-14 09:10 +0100
  [PATCH v3 1/9] net: arc_emac: make the rockchip emac document more compatible Caesar Wang <wxt@rock-chips.com> - 2016-03-14 09:10 +0100
  [PATCH v3 3/9] net: arc_emac: support the phy reset for emac driver Caesar Wang <wxt@rock-chips.com> - 2016-03-14 09:10 +0100
  [PATCH v3 4/9] net: arc: trivial: cleanup the emac driver Caesar Wang <wxt@rock-chips.com> - 2016-03-14 09:10 +0100
  [PATCH v3 2/9] net: arc_emac: add phy reset is optional for device tree Caesar Wang <wxt@rock-chips.com> - 2016-03-14 09:10 +0100
    Re: [PATCH v3 2/9] net: arc_emac: add phy reset is optional for  device tree Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-03-16 15:00 +0100
      Re: [PATCH v3 2/9] net: arc_emac: add phy reset is optional for  device tree Caesar Wang <caesar.upstream@gmail.com> - 2016-03-17 11:10 +0100
  [PATCH v3 6/9] clk: rockchip: associate the rk3036 HCLK_EMAC clock-id Caesar Wang <wxt@rock-chips.com> - 2016-03-14 09:10 +0100
  [PATCH v3 7/9] clk: rockchip: add clock-id for rk3036 emac pll source clock Caesar Wang <wxt@rock-chips.com> - 2016-03-14 09:10 +0100
  [PATCH v3 8/9] clk: rockchip: associate SCLK_MAC_PLL and disable reparenting on rk3036 Caesar Wang <wxt@rock-chips.com> - 2016-03-14 09:10 +0100
  [PATCH v3 5/9] clk: rockchip: add node-id for rk3036 emac hclk Caesar Wang <wxt@rock-chips.com> - 2016-03-14 09:10 +0100
  Re: [PATCH v3 0/9] arc_emac: fixes the emac issues and cleanup  emac drivers David Miller <davem@davemloft.net> - 2016-03-17 00:30 +0100

csiph-web