From: Jisheng Zhang <jszhang@marvell.com>
To: thomas.petazzoni@free-electrons.com, davem@davemloft.net,
mw@semihalf.com, robh+dt@kernel.org, pawel.moll@arm.com,
mark.rutland@arm.com, ijc+devicetree@hellion.org.uk,
galak@codeaurora.org
Cc: devicetree@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, sebastian.hesselbarth@gmail.com,
linux-arm-kernel@lists.infradead.org,
Jisheng Zhang <jszhang@marvell.com>
Subject: [PATCH v2 2/4] net: mvneta: Try to get named core clock first
Date: Wed, 20 Jan 2016 17:20:20 +0800 [thread overview]
Message-ID: <1453281622-7829-3-git-send-email-jszhang@marvell.com> (raw)
In-Reply-To: <1453281622-7829-1-git-send-email-jszhang@marvell.com>
Some platforms may provide more than one clk for the mvneta IP, for
example Marvell BG4CT provides "core" clk for the mac core, and "axi"
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>
---
drivers/net/ethernet/marvell/mvneta.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 8e85a53..736a9ec 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -3605,7 +3605,9 @@ 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;
--
2.7.0.rc3
next prev parent reply other threads:[~2016-01-20 9:20 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-20 9:20 [PATCH v2 0/4] net: mvneta: support more than one clk Jisheng Zhang
[not found] ` <1453281622-7829-1-git-send-email-jszhang-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>
2016-01-20 9:20 ` [PATCH v2 1/4] net: mvneta: sort the headers in alphabetic order Jisheng Zhang
2016-01-20 9:20 ` Jisheng Zhang [this message]
2016-01-20 9:20 ` [PATCH v2 3/4] net: mvneta: get optional axi clk Jisheng Zhang
2016-01-20 9:20 ` [PATCH v2 4/4] net: mvneta: update clocks property and document additional clock-names Jisheng Zhang
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