From: "Rafał Miłecki" <zajec5@gmail.com>
To: "David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org, "Florian Fainelli" <f.fainelli@gmail.com>,
devicetree@vger.kernel.org,
bcm-kernel-feedback-list@broadcom.com,
"Rafał Miłecki" <rafal@milecki.pl>
Subject: [PATCH net-next] net: bgmac: support MDIO described in DT
Date: Mon, 20 Sep 2021 14:34:41 +0200 [thread overview]
Message-ID: <20210920123441.9088-1-zajec5@gmail.com> (raw)
From: Rafał Miłecki <rafal@milecki.pl>
Check ethernet controller DT node for "mdio" subnode and use it with
of_mdiobus_register() when present. That allows specifying MDIO and its
PHY devices in a standard DT based way.
This is required for BCM53573 SoC support which has an MDIO attached
switch.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c b/drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c
index 6ce80cbcb48e..086739e4f40a 100644
--- a/drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c
+++ b/drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c
@@ -10,6 +10,7 @@
#include <linux/bcma/bcma.h>
#include <linux/brcmphy.h>
+#include <linux/of_mdio.h>
#include "bgmac.h"
static bool bcma_mdio_wait_value(struct bcma_device *core, u16 reg, u32 mask,
@@ -211,6 +212,7 @@ struct mii_bus *bcma_mdio_mii_register(struct bgmac *bgmac)
{
struct bcma_device *core = bgmac->bcma.core;
struct mii_bus *mii_bus;
+ struct device_node *np;
int err;
mii_bus = mdiobus_alloc();
@@ -229,7 +231,9 @@ struct mii_bus *bcma_mdio_mii_register(struct bgmac *bgmac)
mii_bus->parent = &core->dev;
mii_bus->phy_mask = ~(1 << bgmac->phyaddr);
- err = mdiobus_register(mii_bus);
+ np = of_get_child_by_name(core->dev.of_node, "mdio");
+
+ err = of_mdiobus_register(mii_bus, np);
if (err) {
dev_err(&core->dev, "Registration of mii bus failed\n");
goto err_free_bus;
--
2.26.2
next reply other threads:[~2021-09-20 12:34 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-20 12:34 Rafał Miłecki [this message]
2021-09-20 16:11 ` [PATCH net-next] net: bgmac: support MDIO described in DT Florian Fainelli
2021-09-20 17:57 ` Rafał Miłecki
2021-09-30 14:29 ` Rafał Miłecki
2021-09-30 23:04 ` Florian Fainelli
2021-10-02 11:46 ` Rafał Miłecki
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