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From:   Lorenz Brun <lorenz@brun.one>
To:     Felix Fietkau <nbd@nbd.name>, John Crispin <john@phrozen.org>,
        Sean Wang <sean.wang@mediatek.com>,
        Mark Lee <Mark-MC.Lee@mediatek.com>,
        Lorenzo Bianconi <lorenzo@kernel.org>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>
Cc:     netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org
Subject: [PATCH] net: ethernet: mtk_eth_soc: log clock enable errors
Date:   Sun,  7 May 2023 23:40:35 +0200
Message-Id: <20230507214035.3266438-1-lorenz@brun.one>
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Sender: lorenz@dolansoft.org
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Currently errors in clk_prepare_enable are silently swallowed.
Add a log stating which clock failed to be enabled and what the error
code was.

Signed-off-by: Lorenz Brun <lorenz@brun.one>
---
 drivers/net/ethernet/mediatek/mtk_eth_soc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index e14050e17862..ca66a573cfcb 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -3445,8 +3445,10 @@ static int mtk_clk_enable(struct mtk_eth *eth)
 
 	for (clk = 0; clk < MTK_CLK_MAX ; clk++) {
 		ret = clk_prepare_enable(eth->clks[clk]);
-		if (ret)
+		if (ret) {
+			dev_err(eth->dev, "enabling clock %s failed with error %d\n", mtk_clks_source_name[clk], ret);
 			goto err_disable_clks;
+		}
 	}
 
 	return 0;
-- 
2.39.2