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PMIC PCA9450 LDO5 Fixes (SD card voltage selection)

Frieder Schrempf requested to merge feature/v6.12-ktn/pca9450-ldo5-fixes into v6.12-ktn

This solves the long-standing issue of the PMIC regulator driver for LDO5 potentially using the incorrect configuration register. It also adds support for hardware that has the SD_VSEL signal hardwired to low level and uses this for the OSM-S i.MX93 SoM.

  1. Removing the old sd-vsel-gpios property (used as output) from the driver.
  2. Add the logic for the new sd-vsel-gpios property in the LDO5 node (used as input).
  3. Add the logic for the nxp,sd-vsel-fixed-low property.
  4. Adjust the devicetrees for i.MX8MM, i.MX8MP and i.MX93.

Tested on BL i.MX93 and BL i.MX8MP

Upstream Status: Submitted (https://patchwork.kernel.org/project/linux-arm-kernel/cover/20241127164337.613915-1-frieder@fris.de/)

Edited by Frieder Schrempf

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