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, devicetree@vger.kernel.org,
linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 0/4] Add drive-strength in Meson pinctrl driver
Date: Thu, 18 Apr 2019 14:47:54 +0200 [thread overview]
Message-ID: <20190418124758.24022-1-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 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 (4):
dt-bindings: pinctrl: add a 'drive-strength-uA' property
pinctrl: generic: add new 'drive-strength-uA' property support
dt-bindings: pinctrl: meson: Add drive-strength-uA property
pinctrl: meson: add support of drive-strength-uA
.../bindings/pinctrl/meson,pinctrl.txt | 3 +
.../bindings/pinctrl/pinctrl-bindings.txt | 3 +
drivers/pinctrl/meson/pinctrl-meson-g12a.c | 36 ++--
drivers/pinctrl/meson/pinctrl-meson.c | 166 ++++++++++++++----
drivers/pinctrl/meson/pinctrl-meson.h | 20 ++-
drivers/pinctrl/pinconf-generic.c | 2 +
include/linux/pinctrl/pinconf-generic.h | 3 +
7 files changed, 174 insertions(+), 59 deletions(-)
--
2.17.1
next reply other threads:[~2019-04-18 12:48 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-18 12:47 Guillaume La Roque [this message]
2019-04-18 12:47 ` [PATCH v2 1/4] dt-bindings: pinctrl: add a 'drive-strength-uA' property Guillaume La Roque
2019-04-23 11:13 ` Linus Walleij
2019-04-27 19:19 ` Martin Blumenstingl
2019-04-29 19:19 ` Kevin Hilman
2019-04-30 15:12 ` Rob Herring
2019-04-30 15:24 ` guillaume La Roque
2019-04-18 12:47 ` [PATCH v2 2/4] pinctrl: generic: add new 'drive-strength-uA' property support Guillaume La Roque
2019-04-18 12:47 ` [PATCH v2 3/4] dt-bindings: pinctrl: meson: Add drive-strength-uA property Guillaume La Roque
2019-04-27 19:21 ` Martin Blumenstingl
2019-04-30 6:38 ` guillaume La Roque
2019-04-18 12:47 ` [PATCH v2 4/4] pinctrl: meson: add support of drive-strength-uA Guillaume La Roque
2019-04-27 19:44 ` Martin Blumenstingl
2019-04-30 7:20 ` guillaume La Roque
2019-04-30 20:28 ` Martin Blumenstingl
2019-05-06 13:16 ` guillaume La Roque
2019-04-23 11:13 ` [PATCH v2 0/4] Add drive-strength in Meson pinctrl driver Linus Walleij
2019-04-27 19:46 ` Martin Blumenstingl
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