From: Guillaume La Roque <glaroque@baylibre.com>
To: linus.walleij@linaro.org, robh+dt@kernel.org,
mark.rutland@arm.com, khilman@baylibre.com
Cc: linux-gpio@vger.kernel.org, linux-amlogic@lists.infradead.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH v3 0/6] Add drive-strength in Meson pinctrl driver
Date: Tue, 7 May 2019 13:57:20 +0200 [thread overview]
Message-ID: <20190507115726.23714-1-glaroque@baylibre.com> (raw)
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-uA". The change to do so
would be minimal and could be benefit to other platforms later on.
Cheers
Guillaume
Changes since v2:
- update driver-strength-uA property to be compliant with DT documentation
- 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
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 | 177 +++++++++++++++---
drivers/pinctrl/meson/pinctrl-meson.h | 18 +-
drivers/pinctrl/pinconf-generic.c | 2 +
include/linux/pinctrl/pinconf-generic.h | 3 +
7 files changed, 195 insertions(+), 48 deletions(-)
--
2.17.1
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next reply other threads:[~2019-05-07 11:57 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-07 11:57 Guillaume La Roque [this message]
2019-05-07 11:57 ` [PATCH v3 1/6] dt-bindings: pinctrl: add a 'drive-strength-microamp' property Guillaume La Roque
2019-05-07 17:37 ` Martin Blumenstingl
2019-05-07 11:57 ` [PATCH v3 2/6] pinctrl: generic: add new 'drive-strength-microamp' property support Guillaume La Roque
2019-05-07 11:57 ` [PATCH v3 3/6] dt-bindings: pinctrl: meson: Add drive-strength-microamp property Guillaume La Roque
2019-05-07 17:37 ` Martin Blumenstingl
2019-05-07 11:57 ` [PATCH v3 4/6] pinctrl: meson: Rework enable/disable bias part Guillaume La Roque
2019-05-07 17:53 ` Martin Blumenstingl
2019-05-09 11:25 ` guillaume La Roque
2019-05-07 11:57 ` [PATCH v3 5/6] pinctrl: meson: add support of drive-strength-microamp Guillaume La Roque
2019-05-07 18:18 ` Martin Blumenstingl
2019-05-09 11:23 ` guillaume La Roque
2019-05-07 11:57 ` [PATCH v3 6/6] pinctrl: meson: g12a: add DS bank value Guillaume La Roque
2019-05-07 18:09 ` Martin Blumenstingl
2019-05-07 15:45 ` [PATCH v3 0/6] Add drive-strength in Meson pinctrl driver Jerome Brunet
2019-05-07 18:03 ` Martin Blumenstingl
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