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net: macb: Fix clk API usage for RISC-V systems

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Don't fail in macb_enable_clk() if clk_enable() returns
-ENOSYS because we get -ENOSYS for fixed-rate clocks.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Anup Patel 2019-02-25 08:14:36 +00:00 committed by Andes
parent 26f4fd1cb4
commit 2e242f5f43
1 changed files with 4 additions and 5 deletions
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9
drivers/net/macb.c
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@ -1061,14 +1061,13 @@ static int macb_enable_clk(struct udevice *dev)
return -EINVAL;
/*
* Zynq clock driver didn't support for enable or disable
* clock. Hence, clk_enable() didn't apply for Zynq
* If clock driver didn't support enable or disable then
* we get -ENOSYS from clk_enable(). To handle this, we
* don't fail for ret == -ENOSYS.
*/
#ifndef CONFIG_MACB_ZYNQ
ret = clk_enable(&clk);
if (ret)
if (ret && ret != -ENOSYS)
return ret;
#endif
clk_rate = clk_get_rate(&clk);
if (!clk_rate)