From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guillaume La Roque Subject: [PATCH v2 0/4] Add drive-strength in Meson pinctrl driver Date: Thu, 18 Apr 2019 14:47:54 +0200 Message-ID: <20190418124758.24022-1-glaroque@baylibre.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org 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 List-Id: devicetree@vger.kernel.org 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