From: Philippe Schenker Date: Mon, 16 Jan 2023 14:01:52 +0000 (+0100) Subject: arm64: dts: imx8mm-verdin: Do not power down eth-phy X-Git-Tag: baikal/aarch64/sdk6.1~187 X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=77070cac1f8cbb464ad5cc914ced6c9ff6c0779f;p=kernel.git 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: 822b8aaa4e64 ("arm64: dts: freescale: add initial support for verdin imx8m mini") Signed-off-by: Philippe Schenker Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin --- diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi index bcab830c6e95e..59445f916d7fa 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi @@ -98,6 +98,7 @@ 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>;