Commit Graph

5 Commits

Author SHA1 Message Date
Nicolas Boichat 5ca1b1c5cd pinctrl: mediatek: mt8183: Add pm_ops
Setting this up will configure wake from suspend properly,
and wake only for the interrupts that are setup in wake_mask,
not all interrupts.

Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Acked-by: Sean Wang <sean.wang@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-06-01 19:40:38 +02:00
Zhiyong Tao 5e73de3413 pinctrl: add drive for I2C related pins on MT8183
This patch provides the advanced drive for I2C used pins on MT8183.
The detail strength specification description of the I2C pin:
When E1=0/E0=0, the strength is 0.125mA.
When E1=0/E0=1, the strength is 0.25mA.
When E1=1/E0=0, the strength is 0.5mA.
When E1=1/E0=1, the strength is 1mA.
For I2C pins, there are existing generic driving setup and the above
specific driving setup. I2C pins can only support 2/4/6/8/10/12/14/16mA
driving adjustment in generic driving setup. But in specific driving
setup, they can support 0.125/0.25/0.5/1mA adjustment.
If we enable specific driving setup for I2C pins,
the existing generic driving setup will be disabled.
For some special features, we need the I2C pins specific driving setup.
The specific driving setup is controlled by E1E0EN.
So we need add extra vendor driving preperty instead of the generic
driving property. We can add "mediatek,drive-strength-adv = <XXX>;"
to describe the specific driving setup property.
"XXX" means the value of E1E0EN. So the valid arguments of
"mediatek,drive-strength-adv" are from 0 to 7.

Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-08 11:20:28 +02:00
Sean Wang 6561859b06 pinctrl: mediatek: add eint support to MT8183 pinctrl driver
Just add eint support to MT8183 pinctrl driver as usual as
happens on the other SoCs.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-18 14:53:42 -07:00
Zhiyong Tao 29686f0151 pintcrl: mediatek: add pull tweaks for I2C related pins on MT8183
This patch provides the advanced pull for I2C used pins on MT8183.

Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-18 14:53:34 -07:00
Zhiyong Tao 750cd15d90 pinctrl: mediatek: add MT8183 pinctrl driver
Add MT8183 pinctrl driver based on  MediaTek pinctrl-paris core.

Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-18 14:53:29 -07:00