linux-kernel - [PATCH v1 0/4] pinctrl: mediatek: add driver support driving and resistance property on mt8192

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Message-ID: <20220608053909.1252-1-guodong.liu@mediatek.com>
Date:   Wed, 8 Jun 2022 13:39:05 +0800
From:   Guodong Liu <guodong.liu@...iatek.com>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Sean Wang <sean.wang@...nel.org>
CC:     Sean Wang <sean.wang@...iatek.com>,
        Zhiyong Tao <zhiyong.tao@...iatek.com>,
        Nícolas F . R . A . Prado 
        <nfraprado@...labora.com>, <linux-gpio@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        Guodong Liu <guodong.liu@...iatek.com>
Subject: [PATCH v1 0/4] pinctrl: mediatek: add driver support driving and resistance property  on mt8192

Patch 1 make driver consistent with "drive-strength" properties
  description of  pinctrl-mt8192.yaml

Patch 2 make driver consistent with "mediatek,drive-strength-adv"
  description pinctrl-mt8192.yaml, however, "mediatek,drive-strength-adv"
  description of pinctrl-mt8192.yaml needs to be synchronize a little bit.

Patch 3 Since the bias-pull-{up,down} is generic properties, make
  driver to be used for setting type {PUPD/R1/R0 , PU/PD, PU/PD/RSEL}.

Patch 4 Remove some pins definitions not support PUPD/R1/R0.

Please see the following for detailed  description 

Patch 1 provides generic driving setup, which support 2/4/6/8/10/12/14/16mA
  driving.

Patch 2 provides I2C pins specific driving setup property, can support
  0.125/0.25/0.5/1mA adjustment, and also support driving setup with
  unit microamp.

Patch 3 provides I2C pins pull up/down type which is RSEL. It can support
  RSEL define or si unit value(ohm) to set different resistance

Patch 4 Remove pin definitions that do not support the R0 & R1 pinconfig
  property

Guodong Liu (4):
  pinctrl: add generic driving setup property on mt8192
  pinctrl: add drive for I2C related pins on mt8192
  pinctrl: mediatek: add rsel setting on mt8192
  pinctrl: mediatek: fix the pinconf definition of some GPIO pins

 drivers/pinctrl/mediatek/pinctrl-mt8192.c | 295 ++++++++++++----------
 1 file changed, 163 insertions(+), 132 deletions(-)

-- 
2.25.5