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From: Oleksij Rempel <o.rempel@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Subject: [PATCH v3 02/12] net: add of_find_eth_device_by_node() function
Date: Thu,  7 Apr 2022 11:15:54 +0200	[thread overview]
Message-ID: <20220407091604.956577-3-o.rempel@pengutronix.de> (raw)
In-Reply-To: <20220407091604.956577-1-o.rempel@pengutronix.de>

For DSA support we need to find MAC node by phandle from the switch port
node. So, provide of_find_eth_device_by_node() to solve this task.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
 include/net.h |  1 +
 net/eth.c     | 16 ++++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/include/net.h b/include/net.h
index ca9b6cd61e..8013f79c2e 100644
--- a/include/net.h
+++ b/include/net.h
@@ -97,6 +97,7 @@ int eth_open(struct eth_device *edev);
 void eth_close(struct eth_device *edev);
 int eth_send(struct eth_device *edev, void *packet, int length);	   /* Send a packet		*/
 int eth_rx(void);			/* Check for received packets	*/
+struct eth_device *of_find_eth_device_by_node(struct device_node *np);
 
 /* associate a MAC address to a ethernet device. Should be called by
  * board code for boards which store their MAC address at some unusual
diff --git a/net/eth.c b/net/eth.c
index 762c5dfb8a..06bf5fbe65 100644
--- a/net/eth.c
+++ b/net/eth.c
@@ -506,6 +506,22 @@ void led_trigger_network(enum led_trigger trigger)
 	led_trigger(LED_TRIGGER_NET_TXRX, TRIGGER_FLASH);
 }
 
+struct eth_device *of_find_eth_device_by_node(struct device_node *np)
+{
+	struct eth_device *edev;
+	int ret;
+
+	ret = of_device_ensure_probed(np);
+	if (ret)
+		return NULL;
+
+	list_for_each_entry(edev, &netdev_list, list)
+		if (edev->parent->device_node == np)
+			return edev;
+	return NULL;
+}
+EXPORT_SYMBOL(of_find_device_by_node);
+
 static int of_populate_ethaddr(void)
 {
 	char str[sizeof("xx:xx:xx:xx:xx:xx")];
-- 
2.30.2


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  parent reply	other threads:[~2022-04-07  9:42 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-07  9:15 [PATCH v3 00/12] provide DSA support Oleksij Rempel
2022-04-07  9:15 ` [PATCH v3 01/12] net: add RX preprocessor support Oleksij Rempel
2022-04-07  9:15 ` Oleksij Rempel [this message]
2022-04-07 13:36   ` [PATCH v3 02/12] net: add of_find_eth_device_by_node() function Sascha Hauer
2022-04-07  9:15 ` [PATCH v3 03/12] net: add DSA framework to support basic switch functionality Oleksij Rempel
2022-04-07 13:56   ` Sascha Hauer
2022-04-12  8:14   ` Sascha Hauer
2022-04-07  9:15 ` [PATCH v3 04/12] driver: add dev_get_priv() helper Oleksij Rempel
2022-04-07  9:15 ` [PATCH v3 05/12] net: port part of if_vlan header from kernel v5.17 Oleksij Rempel
2022-04-07  9:15 ` [PATCH v3 06/12] spi: port spi_sync_transfer() function " Oleksij Rempel
2022-04-07  9:15 ` [PATCH v3 07/12] net: mdio: add MDIO_DEVAD_NONE define Oleksij Rempel
2022-04-07  9:16 ` [PATCH v3 08/12] net: phy: make sure MDIO bus is probed if we search for the PHY Oleksij Rempel
2022-04-07  9:16 ` [PATCH v3 09/12] of_net: add rev-rmii support Oleksij Rempel
2022-04-07  9:16 ` [PATCH v3 10/12] net: dsa: add support for SJA11xx switches Oleksij Rempel
2022-04-07 14:04   ` Sascha Hauer
2022-04-07  9:16 ` [PATCH v3 11/12] net: dsa: add KSZ9477 switch SPI driver Oleksij Rempel
2022-04-07 14:27   ` Sascha Hauer
2022-04-07  9:16 ` [PATCH v3 12/12] add ethlog Oleksij Rempel

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