[PATCH 6/6] arm64: dts: imx8mm-kontron: Add support for reading SD_VSEL signal

[Marek Vasut]

On 2/13/23 16:58, Frieder Schrempf wrote:
> From: Frieder Schrempf <frieder.schrempf at kontron.de>
> 
> This fixes the LDO5 regulator handling of the pca9450 driver by
> taking the status of the SD_VSEL into account to determine which
> configuration register is used for the voltage setting.
> 
> Even without this change there is no functional issue, as the code
> for switching the voltage in sdhci.c currently switches both, the
> VSELECT/SD_VSEL signal and the regulator voltage at the same time
> and doesn't run into an invalid corner case.
> 
> We should still make sure, that we always use the correct register
> when controlling the regulator. At least in U-Boot this fixes an
> actual bug where the wrong IO voltage is used.
> 
> Signed-off-by: Frieder Schrempf <frieder.schrempf at kontron.de>

I may have a kind-of obvious request, since we removed those SD_VSEL 
very recently from other boards, could you just revert all those patches 
and only fill in the SION bit in V2 on all those boards too ? That way, 
we fix the LDO5 regulator for everyone who used it before.