[U-Boot] [PATCH 0/3] power: Add a driver to handle the PBIAS cell of the TI SOCs

[Jean-Jacques Hiblot]

In the TI SOCs a PBIAS cell exists to provide a bias voltage to the MMC1
IO cells. Without this bias voltage these I/O cells can not function
properly. This bias voltage is either 1.8v or 3.0v.

The first patch implements the support for this PBIAS cell as a regulator
driver.
The sencond patch enables it in the default config for am57x and dra7x.
The last patch is here to allow the binding of the driver. In the DTS of the
dra7x and am57x platforms, the pbias entry is a child of a syscon.
    
Jean-Jacques Hiblot (3):
  regulator: pbias: Add PBIAS regulator for proper voltage switching on
    MMC1
  configs: dra7xx_evm: am57xx_evm: Enable DM_REGULATOR_PBIAS
  dm: syscon: scan sub-nodes of the syscon node

 configs/am57xx_evm_defconfig              |   3 +
 configs/dra7xx_evm_defconfig              |   1 +
 drivers/core/syscon-uclass.c              |   1 +
 drivers/power/regulator/Kconfig           |  10 +
 drivers/power/regulator/Makefile          |   1 +
 drivers/power/regulator/pbias_regulator.c | 305 ++++++++++++++++++++++++++++++
 6 files changed, 321 insertions(+)
 create mode 100644 drivers/power/regulator/pbias_regulator.c

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1.9.1