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net: mvneta: Try to get named core clock first

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Some platforms may provide more than one clk for the mvneta IP, for
example Marvell BG4CT provides one clk for the mac core, and one
clk for the AXI bus logic.

To support for more than one clock, we'll need to distinguish between
the clock by name. Change clock probing to first try to get "core"
clock before falling back to unnamed clock.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jisheng Zhang 2016-01-20 19:27:23 +08:00 committed by David S. Miller
parent 0e03f563a0
commit 2804ba4ede
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/marvell/mvneta.c
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@ -3604,7 +3604,9 @@ static int mvneta_probe(struct platform_device *pdev)
pp->indir[0] = rxq_def;
pp->clk = devm_clk_get(&pdev->dev, NULL);
pp->clk = devm_clk_get(&pdev->dev, "core");
if (IS_ERR(pp->clk))
pp->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(pp->clk)) {
err = PTR_ERR(pp->clk);
goto err_put_phy_node;