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Subject[PATCH v6 0/6] Add drive-strength in Meson pinctrl driver
The purpose of this patchset is to add drive-strength 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 0.5mA, 2.5mA, 3mA and 4mA and the DT property
'drive-strength' is expressed in mA.
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.


Changes since v5:
- restore Tested-by/Reviewed-by/Ack-by tags

Changes since v4:
- fix dt-binding documentation
- rename drive-strength-uA to drive-strength-microamp in coverletter

Changes since v3:
- remove dev_err in meson_get_drive_strength
- cleanup code

Changes since v2:
- rename driver-strength-uA property to drive-strength-microamp
- rework patch series for better understanding
- rework set_bias function

Changes since v1:
- fix missing break
- implement new pinctrl generic property "drive-strength-uA"

Tested-by: Jerome Brunet <>

Guillaume La Roque (6):
dt-bindings: pinctrl: add a 'drive-strength-microamp' property
pinctrl: generic: add new 'drive-strength-microamp' property support
dt-bindings: pinctrl: meson: Add drive-strength-microamp property
pinctrl: meson: Rework enable/disable bias part
pinctrl: meson: add support of drive-strength-microamp
pinctrl: meson: g12a: add DS bank value

.../bindings/pinctrl/meson,pinctrl.txt | 4 +
.../bindings/pinctrl/pinctrl-bindings.txt | 3 +
drivers/pinctrl/meson/pinctrl-meson-g12a.c | 36 ++--
drivers/pinctrl/meson/pinctrl-meson.c | 180 ++++++++++++++----
drivers/pinctrl/meson/pinctrl-meson.h | 18 +-
drivers/pinctrl/pinconf-generic.c | 2 +
include/linux/pinctrl/pinconf-generic.h | 3 +
7 files changed, 193 insertions(+), 53 deletions(-)


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