Patch "arm64: dts: imx8mm-verdin: Do not power down eth-phy" has been added to the 6.1-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

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

to the 6.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     arm64-dts-imx8mm-verdin-do-not-power-down-eth-phy.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit fb2253bd739d56a269035b365f9ce206f5d9824c
Author: Philippe Schenker <philippe.schenker@xxxxxxxxxxx>
Date:   Mon Jan 16 15:01:52 2023 +0100

    arm64: dts: imx8mm-verdin: Do not power down eth-phy
    
    [ Upstream commit 39c95d0c357d7ef76aea958c1bece6b24f9b2e7e ]
    
    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: 6a57f224f734 ("arm64: dts: freescale: add initial support for verdin imx8m mini")
    Signed-off-by: Philippe Schenker <philippe.schenker@xxxxxxxxxxx>
    Signed-off-by: Shawn Guo <shawnguo@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
index bcab830c6e95..59445f916d7f 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
@@ -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>;