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net: mvmdio: print warning when orion-mdio has too many clocks 

Print a warning when device tree specifies more than the maximum of four
clocks supported by orion-mdio. Because reading from mdio can lock up
the Armada 8k when a required clock is not initialized, it is important
to notify the user when a specified clock is ignored.

Signed-off-by: Josua Mayer <josua@solid-run.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
alistair/sunxi64-5.4-dsi
Josua Mayer 2019-07-09 15:01:00 +02:00 committed by David S. Miller
parent 4aabed699c
commit ea664b1bdc
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ethernet/marvell/mvmdio.c
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@ -326,6 +326,10 @@ static int orion_mdio_probe(struct platform_device *pdev)
clk_prepare_enable(dev->clk[i]);
}
if (!IS_ERR(of_clk_get(pdev->dev.of_node, ARRAY_SIZE(dev->clk))))
dev_warn(&pdev->dev, "unsupported number of clocks, limiting to the first "
__stringify(ARRAY_SIZE(dev->clk)) "\n");
dev->err_interrupt = platform_get_irq(pdev, 0);
if (dev->err_interrupt > 0 &&
resource_size(r) < MVMDIO_ERR_INT_MASK + 4) {