| Message ID | 20190514082652.20686-1-glaroque@baylibre.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Add drive-strength in Meson pinctrl driver | expand |
On Tue, May 14, 2019 at 10:26 AM Guillaume La Roque <glaroque@baylibre.com> wrote: > 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. > > Cheers > Guillaume > > Changes since v5: > - restore Tested-by/Reviewed-by/Ack-by tags All 6 patches applied for v5.3. They will appear in the tree once v5.2-rc1 is out. Yours, Linus Walleij
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. Cheers Guillaume 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" [1] https://lkml.kernel.org/r/20190314163725.7918-1-jbrunet@baylibre.com Tested-by: Jerome Brunet <jbrunet@baylibre.com> 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(-)