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Date:   Mon, 14 Dec 2020 12:15:58 +0300
From:   Serge Semin <Sergey.Semin@...kalelectronics.ru>
To:     Rob Herring <robh+dt@...nel.org>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Johan Hovold <johan@...nel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Joao Pinto <jpinto@...opsys.com>,
        Lars Persson <larper@...s.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>
CC:     Serge Semin <Sergey.Semin@...kalelectronics.ru>,
        Serge Semin <fancer.lancer@...il.com>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Pavel Parkhomenko <Pavel.Parkhomenko@...kalelectronics.ru>,
        Vyacheslav Mitrofanov 
        <Vyacheslav.Mitrofanov@...kalelectronics.ru>,
        <netdev@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 08/25] net: stmmac: Add snps,*-config sub-nodes support

Currently the "snps,axi-config", "snps,mtl-rx-config" and
"snps,mtl-tx-config" DT node properties are marked as deprecated when
being defined as a phandle reference to a node with parameters. The new
way of defining the DW MAC interfaces config is to add an eponymous
sub-nodes to the DW MAC device DT node. Make sure the STMMAC driver
supports it.

Signed-off-by: Serge Semin <Sergey.Semin@...kalelectronics.ru>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index af34a4cadbb0..b4720e477d90 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -95,7 +95,8 @@ static struct stmmac_axi *stmmac_axi_setup(struct platform_device *pdev)
 	struct device_node *np;
 	struct stmmac_axi *axi;
 
-	np = of_parse_phandle(pdev->dev.of_node, "snps,axi-config", 0);
+	np = of_parse_phandle(pdev->dev.of_node, "snps,axi-config", 0) ?:
+	     of_get_child_by_name(pdev->dev.of_node, "snps,axi-config");
 	if (!np)
 		return NULL;
 
@@ -150,11 +151,13 @@ static int stmmac_mtl_setup(struct platform_device *pdev,
 	plat->rx_queues_cfg[0].mode_to_use = MTL_QUEUE_DCB;
 	plat->tx_queues_cfg[0].mode_to_use = MTL_QUEUE_DCB;
 
-	rx_node = of_parse_phandle(pdev->dev.of_node, "snps,mtl-rx-config", 0);
+	rx_node = of_parse_phandle(pdev->dev.of_node, "snps,mtl-rx-config", 0) ?:
+		  of_get_child_by_name(pdev->dev.of_node, "snps,mtl-rx-config");
 	if (!rx_node)
 		return ret;
 
-	tx_node = of_parse_phandle(pdev->dev.of_node, "snps,mtl-tx-config", 0);
+	tx_node = of_parse_phandle(pdev->dev.of_node, "snps,mtl-tx-config", 0) ?:
+		  of_get_child_by_name(pdev->dev.of_node, "snps,mtl-tx-config");
 	if (!tx_node) {
 		of_node_put(rx_node);
 		return ret;
-- 
2.29.2

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