[PATCH v1] arm64: dts: freescale: imx8mm-verdin: Keep LDO5 always on
Shawn Guo
shawnguo2 at yeah.net
Mon Jul 7 00:37:10 PDT 2025
On Mon, Jun 23, 2025 at 03:25:45PM +0200, Francesco Dolcini wrote:
> From: Francesco Dolcini <francesco.dolcini at toradex.com>
>
> LDO5 regulator is used to power the i.MX8MM NVCC_SD2 I/O supply, that is
> used for the SD2 card interface and also for some GPIOs.
>
> When the SD card interface is not enabled the regulator subsystem could
> turn off this supply, since it is not used anywhere else, however this
> will also remove the power to some other GPIOs, for example one I/O that
> is used to power the ethernet phy, leading to a non working ethernet
> interface.
>
> [ 31.820515] On-module +V3.3_1.8_SD (LDO5): disabling
> [ 31.821761] PMIC_USDHC_VSELECT: disabling
> [ 32.764949] fec 30be0000.ethernet end0: Link is Down
>
> Fix this keeping the LDO5 supply always on.
>
> Cc: stable at vger.kernel.org
> Fixes: 6a57f224f734 ("arm64: dts: freescale: add initial support for verdin imx8m mini")
> Fixes: f5aab0438ef1 ("regulator: pca9450: Fix enable register for LDO5")
> Signed-off-by: Francesco Dolcini <francesco.dolcini at toradex.com>
Applied, thanks!
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