From: Michal Simek <michal.simek@amd.com>
To: <u-boot@lists.denx.de>, <git@xilinx.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>,
Ramon Fried <rfried.dev@gmail.com>
Subject: [PATCH] net: gem: Check rate before setting it up
Date: Fri, 26 Aug 2022 10:30:47 +0200 [thread overview]
Message-ID: <bc465ffd4904bfd65208b782daa06732b915db54.1661502645.git.michal.simek@amd.com> (raw)
On QEMU setting rate for fixed clock is failing. That's why check a rate
first if the rate is the same there is no need to ask for the change.
Signed-off-by: Michal Simek <michal.simek@amd.com>
---
drivers/net/zynq_gem.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
index 4e8dd4badd6b..61a6c83e335d 100644
--- a/drivers/net/zynq_gem.c
+++ b/drivers/net/zynq_gem.c
@@ -500,10 +500,13 @@ static int zynq_gem_init(struct udevice *dev)
}
#endif
- ret = clk_set_rate(&priv->tx_clk, clk_rate);
- if (IS_ERR_VALUE(ret)) {
- dev_err(dev, "failed to set tx clock rate\n");
- return ret;
+ ret = clk_get_rate(&priv->tx_clk);
+ if (ret != clk_rate) {
+ ret = clk_set_rate(&priv->tx_clk, clk_rate);
+ if (IS_ERR_VALUE(ret)) {
+ dev_err(dev, "failed to set tx clock rate %ld\n", clk_rate);
+ return ret;
+ }
}
ret = clk_enable(&priv->tx_clk);
--
2.36.1
next reply other threads:[~2022-08-26 8:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-26 8:30 Michal Simek [this message]
2022-08-31 8:14 ` [PATCH] net: gem: Check rate before setting it up Michal Simek
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