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From:   Jianqun Xu <jay.xu@rock-chips.com>
To:     peppe.cavallaro@st.com, alexandre.torgue@st.com,
        joabreu@synopsys.com
Cc:     davem@davemloft.net, kuba@kernel.org, mcoquelin.stm32@gmail.com,
        netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, Jianqun Xu <jay.xu@rock-chips.com>
Subject: [PATCH RESEND] ethernet: stmmac: fix for none child queue node for tx node
Date:   Thu, 28 Apr 2022 09:09:27 +0800
Message-Id: <20220428010927.526310-1-jay.xu@rock-chips.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

In case of nothing to be set for tx node result in no child queue node
for the tx node, this patch init the queue to tx_queues_to_use instead
of 0 to support dt file set no queue node for tx node.

Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 2d8c095f3856..4f01a41c485c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -279,7 +279,7 @@ static int stmmac_mtl_setup(struct platform_device *pdev,
 
 		queue++;
 	}
-	if (queue != plat->tx_queues_to_use) {
+	if (queue != plat->tx_queues_to_use && of_get_child_count(tx_node)) {
 		ret = -EINVAL;
 		dev_err(&pdev->dev, "Not all TX queues were configured\n");
 		goto out;
-- 
2.25.1