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net: gem: Check rate before setting it up
author
Michal Simek
<michal.simek@amd.com>
Fri, 26 Aug 2022 08:30:47 +0000
(10:30 +0200)
committer
Michal Simek
<michal.simek@amd.com>
Tue, 13 Sep 2022 09:32:48 +0000
(11:32 +0200)
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>
Link:
https://lore.kernel.org/r/bc465ffd4904bfd65208b782daa06732b915db54.1661502645.git.michal.simek@amd.com
drivers/net/zynq_gem.c
patch
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diff --git
a/drivers/net/zynq_gem.c
b/drivers/net/zynq_gem.c
index
4e8dd4b
..
61a6c83
100644
(file)
--- 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);