AuxXxilium/linux_dsm_epyc7002
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5e73de3413
linux_dsm_epyc7002/drivers/pinctrl
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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
..
actions pinctrl: actions: Add Actions Semi S700 pinctrl driver 2018-11-19 14:12:34 +01:00
aspeed pinctrl: aspeed: Wrap -Woverride-init with cc-option 2018-12-16 01:22:38 +01:00
bcm pinctrl: bcm2835: Direct GPIO config changes to generic pinctrl 2019-02-08 13:13:01 +01:00
berlin pinctrl: berlin: as370: use generic "pwm" as pwm function name 2019-01-28 15:20:53 +01:00
cirrus pinctrl: lochnagar: Add support for the Cirrus Logic Lochnagar 2019-04-04 12:09:30 +07:00
freescale pinctrl: fsl: Make pinctrl_ipc_handle static 2019-04-04 12:15:36 +07:00
intel pinctrl: cherryview: fix Strago DMI workaround 2019-01-21 13:05:42 +01:00
mediatek pinctrl: add drive for I2C related pins on MT8183 2019-04-08 11:20:28 +02:00
meson This is the bulk of pin control changes for the v5.1 kernel cycle. 2019-03-11 11:12:50 -07:00
mvebu pinctrl: armada-37xx: change suspend/resume time 2019-01-21 14:12:50 +01:00
nomadik pinctrl: nomadik: fix possible object reference leak 2019-02-20 10:52:34 +01:00
nuvoton pinctrl: nuvoton: check for devm_kasprintf() failure 2018-12-05 22:55:04 +01:00
pxa
qcom This is the bulk of pin control changes for the v5.1 kernel cycle. 2019-03-11 11:12:50 -07:00
samsung pinctrl: samsung: Remove legacy API for handling external wakeup interrupts mask 2019-02-08 14:52:31 +01:00
sh-pfc pinctrl: sh-pfc: r8a77965: Add I2C{0,3,5} pins, groups and functions 2019-04-04 12:02:50 +02:00
sirf pinctrl: sirf: drop pointless static qualifier in sirfsoc_gpio_probe 2019-01-28 14:42:55 +01:00
spear pinctrl: Include <linux/gpio/driver.h> nothing else 2018-09-14 15:10:57 +02:00
sprd pinctrl: sprd: Use define directive for sprd_pinconf_params values 2018-11-09 10:20:47 +01:00
stm32 pinctrl: stm32: return error upon hwspinlock failure 2019-02-20 10:41:09 +01:00
sunxi pinctrl: sunxi: Allow to disable pinctrl drivers 2019-04-04 10:55:54 +07:00
tegra pinctrl: tegra: do not export tegra_pinctrl_probe 2018-09-20 08:15:16 -07:00
ti pinctrl: ti-iodelay: Fix platform_no_drv_owner.cocci warnings 2019-01-28 14:41:54 +01:00
uniphier pinctrl: uniphier: constify uniphier_pinctrl_socdata 2018-12-21 11:18:08 +01:00
vt8500 pinctrl: Include <linux/gpio/driver.h> nothing else 2018-09-14 15:10:57 +02:00
zte
core.c pinctrl: core: make sure strcmp() doesn't get a null parameter 2018-10-01 13:46:13 +02:00
core.h
devicetree.c
devicetree.h
Kconfig pinctrl: ocelot: Add dependency on HAS_IOMEM 2018-12-22 11:15:04 +01:00
Makefile pinctrl: Add RZ/A2 pin and gpio controller 2018-11-23 09:30:27 +01:00
pinconf-generic.c
pinconf.c pinctrl: remove unused 'pinconf-config' debugfs interface 2019-01-28 14:39:52 +01:00
pinconf.h
pinctrl-amd.c pinctrl/amd: fix typo 2019-01-11 13:25:24 +01:00
pinctrl-amd.h
pinctrl-artpec6.c pinctrl: artpec6: Make two functions static 2019-04-04 22:25:10 +07:00
pinctrl-as3722.c pinctrl: Include <linux/gpio/driver.h> nothing else 2018-09-14 15:10:57 +02:00
pinctrl-at91-pio4.c pinctrl: pinctrl-at91-pio4: simplify getting .driver_data 2018-11-05 09:33:32 +01:00
pinctrl-at91.c pinctrl: at91: add slewrate support for SAM9X60 2019-02-08 13:07:03 +01:00
pinctrl-at91.h pinctrl: at91: add slewrate support for SAM9X60 2019-02-08 13:07:03 +01:00
pinctrl-axp209.c pinctrl: axp209: Fix NULL pointer dereference after allocation 2019-04-08 11:20:28 +02:00
pinctrl-coh901.c pinctrl: Include <linux/gpio/driver.h> nothing else 2018-09-14 15:10:57 +02:00
pinctrl-coh901.h
pinctrl-da850-pupd.c
pinctrl-digicolor.c pinctrl: Include <linux/gpio/driver.h> nothing else 2018-09-14 15:10:57 +02:00
pinctrl-falcon.c pinctrl: Include <linux/gpio/driver.h> nothing else 2018-09-14 15:10:57 +02:00
pinctrl-gemini.c pinctrl: gemini: Fix up TVC clock group 2018-10-10 21:05:35 +02:00
pinctrl-ingenic.c pinctrl: ingenic: Add LCD pins for the JZ4725B SoC 2019-02-08 15:01:24 +01:00
pinctrl-lantiq.c pinctrl: Convert to using %pOFn instead of device_node.name 2018-08-29 14:05:36 +02:00
pinctrl-lantiq.h
pinctrl-lpc18xx.c pinctrl: lpc18xx: Use define directive for PIN_CONFIG_GPIO_PIN_INT 2018-11-09 10:23:58 +01:00
pinctrl-max77620.c pinctrl: max77620: Use define directive for max77620_pinconf_param values 2018-11-09 10:02:22 +01:00
pinctrl-mcp23s08.c Linux 5.0-rc6 2019-02-11 09:17:23 +01:00
pinctrl-ocelot.c pinctrl: ocelot: add MSCC Jaguar2 support 2018-12-21 11:50:48 +01:00
pinctrl-oxnas.c
pinctrl-palmas.c
pinctrl-pic32.c
pinctrl-pic32.h
pinctrl-pistachio.c pinctrl: Include <linux/gpio/driver.h> nothing else 2018-09-14 15:10:57 +02:00
pinctrl-rk805.c
pinctrl-rockchip.c pinctrl: rockchip: add rk3188 routes to switch between nand and emmc 2018-11-17 13:18:53 +01:00
pinctrl-rza1.c pinctrl: rza1: Remove unneeded spinlock acquisitions 2019-04-02 09:57:50 +02:00
pinctrl-rza2.c pinctrl: Add RZ/A2 pin and gpio controller 2018-11-23 09:30:27 +01:00
pinctrl-rzn1.c pinctrl: rzn1: Fix of_get_child_count() error check 2018-12-04 10:33:49 +01:00
pinctrl-single.c pinctrl: Convert to using %pOFn instead of device_node.name 2018-08-29 14:05:36 +02:00
pinctrl-st.c pinctrl: Convert to using %pOFn instead of device_node.name 2018-08-29 14:05:36 +02:00
pinctrl-sx150x.c pinctrl: sx150x: handle failure case of devm_kstrdup 2018-12-07 13:22:47 +01:00
pinctrl-tb10x.c
pinctrl-u300.c
pinctrl-utils.c
pinctrl-utils.h
pinctrl-xway.c pinctrl: xway: fix gpio-hog related boot issues 2018-12-17 23:11:18 +01:00
pinctrl-zynq.c pinctrl: zynq: Use define directive for PIN_CONFIG_IO_STANDARD 2018-11-09 10:25:17 +01:00
pinmux.c pinctrl: Change to use DEFINE_SHOW_ATTRIBUTE macro 2018-12-07 11:11:10 +01:00
pinmux.h