Commit 18b200e0 authored by Karicheri, Muralidharan's avatar Karicheri, Muralidharan Committed by Greg Kroah-Hartman

net: phy: dp83867: allow RGMII_TXID/RGMII_RXID interface types


[ Upstream commit 34c55cf2 ]

Currently dp83867 driver returns error if phy interface type
PHY_INTERFACE_MODE_RGMII_RXID is used to set the rx only internal
delay. Similarly issue happens for PHY_INTERFACE_MODE_RGMII_TXID.
Fix this by checking also the interface type if a particular delay
value is missing in the phy dt bindings. Also update the DT document
accordingly.
Signed-off-by: default avatarMurali Karicheri <m-karicheri2@ti.com>
Signed-off-by: default avatarSekhar Nori <nsekhar@ti.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarSasha Levin <alexander.levin@verizon.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e1eac347
......@@ -3,9 +3,11 @@
Required properties:
- reg - The ID number for the phy, usually a small integer
- ti,rx-internal-delay - RGMII Receive Clock Delay - see dt-bindings/net/ti-dp83867.h
for applicable values
for applicable values. Required only if interface type is
PHY_INTERFACE_MODE_RGMII_ID or PHY_INTERFACE_MODE_RGMII_RXID
- ti,tx-internal-delay - RGMII Transmit Clock Delay - see dt-bindings/net/ti-dp83867.h
for applicable values
for applicable values. Required only if interface type is
PHY_INTERFACE_MODE_RGMII_ID or PHY_INTERFACE_MODE_RGMII_TXID
- ti,fifo-depth - Transmitt FIFO depth- see dt-bindings/net/ti-dp83867.h
for applicable values
......
......@@ -113,12 +113,16 @@ static int dp83867_of_init(struct phy_device *phydev)
ret = of_property_read_u32(of_node, "ti,rx-internal-delay",
&dp83867->rx_id_delay);
if (ret)
if (ret &&
(phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID))
return ret;
ret = of_property_read_u32(of_node, "ti,tx-internal-delay",
&dp83867->tx_id_delay);
if (ret)
if (ret &&
(phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID))
return ret;
return of_property_read_u32(of_node, "ti,fifo-depth",
......
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