[PATCH v2] arm64: dts: imx8mp-var-som: Fix LDO5 shutdown causing SD card timeout

[Shawn Guo]

On Mon, May 05, 2025 at 11:28:27AM +0530, Himanshu Bhavani wrote:
> Fix SD card timeout issue caused by LDO5 regulator getting disabled
> after boot.
> 
> The kernel log shows LDO5 being disabled, which leads to a timeout
> on USDHC2:
> [   33.760561] LDO5: disabling
> [   81.119861] mmc1: Timeout waiting for hardware interrupt.
> 
> To prevent this, set regulator-boot-on and regulator-always-on for
> LDO5. Also add the vqmmc regulator to properly support 1.8V/3.3V
> signaling for USDHC2 using a GPIO-controlled regulator.
> 
> Fixes: 6c2a1f4f71258 ("arm64: dts: imx8mp-var-som-symphony: Add Variscite Symphony board and VAR-SOM-MX8MP SoM")
> Signed-off-by: Himanshu Bhavani <himanshu.bhavani at siliconsignals.io>

Applied, thanks!