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net: mvpp2: Fix clock resource by adding missing mg_core_clk 

Marvell's PPv2.2 IP needs an additional clock named "MG Core clock".
This is required on Armada 7K and 8K.

This commit adds the required clock in mvpp2, making sure it's only
used on PPv2.2.

Fixes: c7e92def1e ("clk: mvebu: cp110: Fix clock tree representation")
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Maxime Chevallier 2018-04-25 20:21:17 +02:00 committed by David S. Miller
parent 45f972adb7
commit 9af771ced4
1 changed files with 17 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/net/ethernet/marvell/mvpp2.c
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@ -942,6 +942,7 @@ struct mvpp2 {
struct clk *pp_clk;
struct clk *gop_clk;
struct clk *mg_clk;
struct clk *mg_core_clk;
struct clk *axi_clk;
/* List of pointers to port structures */
@ -8768,18 +8769,27 @@ static int mvpp2_probe(struct platform_device *pdev)
err = clk_prepare_enable(priv->mg_clk);
if (err < 0)
goto err_gop_clk;
priv->mg_core_clk = devm_clk_get(&pdev->dev, "mg_core_clk");
if (IS_ERR(priv->mg_core_clk)) {
priv->mg_core_clk = NULL;
} else {
err = clk_prepare_enable(priv->mg_core_clk);
if (err < 0)
goto err_mg_clk;
}
}
priv->axi_clk = devm_clk_get(&pdev->dev, "axi_clk");
if (IS_ERR(priv->axi_clk)) {
err = PTR_ERR(priv->axi_clk);
if (err == -EPROBE_DEFER)
goto err_mg_clk;
goto err_mg_core_clk;
priv->axi_clk = NULL;
} else {
err = clk_prepare_enable(priv->axi_clk);
if (err < 0)
goto err_mg_clk;
goto err_mg_core_clk;
}
/* Get system's tclk rate */
@ -8851,6 +8861,10 @@ err_port_probe:
}
err_axi_clk:
clk_disable_unprepare(priv->axi_clk);
err_mg_core_clk:
if (priv->hw_version == MVPP22)
clk_disable_unprepare(priv->mg_core_clk);
err_mg_clk:
if (priv->hw_version == MVPP22)
clk_disable_unprepare(priv->mg_clk);
@ -8898,6 +8912,7 @@ static int mvpp2_remove(struct platform_device *pdev)
return 0;
clk_disable_unprepare(priv->axi_clk);
clk_disable_unprepare(priv->mg_core_clk);
clk_disable_unprepare(priv->mg_clk);
clk_disable_unprepare(priv->pp_clk);
clk_disable_unprepare(priv->gop_clk);