[U-Boot] [PATCH 0/3] Add drive-strength-microamp in Meson pinctrl driver

[Guillaume La Roque]

The purpose of this patchset is to add drive-strength-microamp support in meson pinconf
driver. This is a new feature that was added on the g12a. It is critical for us
to support this since many functions are failing with default pad drive-strength.

The value achievable by the SoC are 500uA, 2500uA, 3000uA and 4000uA and the DT property
'drive-strength-microamp' is expressed in uA.
So this patch add another generic property "drive-strength-microamp". The change to do so
would be minimal and could be benefit to other platforms later on.

it's backport from linux :
https://lore.kernel.org/lkml/20190514082652.20686-1-glaroque@baylibre.com/

Cheers
Guillaume

Guillaume La Roque (3):
  dm: pinctrl: Add driver-strength-microamp property
  pinctrl: meson: add support of drive-strength-microamp
  pinctrl: meson: g12a: add DS bank value

 drivers/pinctrl/meson/pinctrl-meson-axg-pmx.c |  1 +
 drivers/pinctrl/meson/pinctrl-meson-g12a.c    | 20 ++++----
 drivers/pinctrl/meson/pinctrl-meson.c         | 46 ++++++++++++++++++-
 drivers/pinctrl/meson/pinctrl-meson.h         | 43 +++++++++++------
 include/dm/pinctrl.h                          |  3 ++
 5 files changed, 89 insertions(+), 24 deletions(-)

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2.17.1