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arm64: dts: imx8mm-verdin: Do not power down eth-phy

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Currently if suspending using either freeze or memory state, the fec
driver tries to power down the phy which leads to crash of the kernel
and non-responsible kernel with the following call trace:

[   24.839889 ] Call trace:
[   24.839892 ]  phy_error+0x18/0x60
[   24.839898 ]  kszphy_handle_interrupt+0x6c/0x80
[   24.839903 ]  phy_interrupt+0x20/0x2c
[   24.839909 ]  irq_thread_fn+0x30/0xa0
[   24.839919 ]  irq_thread+0x178/0x2c0
[   24.839925 ]  kthread+0x154/0x160
[   24.839932 ]  ret_from_fork+0x10/0x20

Since there is currently no functionality in the phy subsystem to power
down phys let's just disable the feature of powering-down the ethernet
phy.

Fixes: 6a57f224f7 ("arm64: dts: freescale: add initial support for verdin imx8m mini")
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Philippe Schenker
2023-01-16 15:01:52 +01:00
committed by Shawn Guo
parent 52219e719f
commit 39c95d0c35
1 changed files with 1 additions and 0 deletions
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arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
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@@ -98,6 +98,7 @@ reg_ethphy: regulator-ethphy {
off-on-delay = <500000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_reg_eth>;
regulator-always-on;
regulator-boot-on;
regulator-max-microvolt = <3300000>;
regulator-min-microvolt = <3300000>;