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dm: pinctrl: sync with Linux to use pin_config_param

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Sync with Linux commit 30a7acd573899fd8b("Linux 4.15-rc6")
to use enum pin_config_param.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
master
Peng Fan 6 years ago committed by Simon Glass
parent d1ccaa4760
commit 0fe4e41825
1 changed files with 66 additions and 46 deletions
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  1. 112
      include/dm/pinctrl.h

112
include/dm/pinctrl.h
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@ -137,6 +137,12 @@ struct pinctrl_ops {
/**
* Generic pin configuration paramters
*
* enum pin_config_param - possible pin configuration parameters
* @PIN_CONFIG_BIAS_BUS_HOLD: the pin will be set to weakly latch so that it
* weakly drives the last value on a tristate bus, also known as a "bus
* holder", "bus keeper" or "repeater". This allows another device on the
* bus to change the value by driving the bus high or low and switching to
* tristate. The argument is ignored.
* @PIN_CONFIG_BIAS_DISABLE: disable any pin bias on the pin, a
* transition from say pull-up to pull-down implies that you disable
* pull-up in the process, this setting disables all biasing.
@ -146,14 +152,6 @@ struct pinctrl_ops {
* if for example some other pin is going to drive the signal connected
* to it for a while. Pins used for input are usually always high
* impedance.
* @PIN_CONFIG_BIAS_BUS_HOLD: the pin will be set to weakly latch so that it
* weakly drives the last value on a tristate bus, also known as a "bus
* holder", "bus keeper" or "repeater". This allows another device on the
* bus to change the value by driving the bus high or low and switching to
* tristate. The argument is ignored.
* @PIN_CONFIG_BIAS_PULL_UP: the pin will be pulled up (usually with high
* impedance to VDD). If the argument is != 0 pull-up is enabled,
* if it is 0, pull-up is total, i.e. the pin is connected to VDD.
* @PIN_CONFIG_BIAS_PULL_DOWN: the pin will be pulled down (usually with high
* impedance to GROUND). If the argument is != 0 pull-down is enabled,
* if it is 0, pull-down is total, i.e. the pin is connected to GROUND.
@ -165,10 +163,9 @@ struct pinctrl_ops {
* If the argument is != 0 pull up/down is enabled, if it is 0, the
* configuration is ignored. The proper way to disable it is to use
* @PIN_CONFIG_BIAS_DISABLE.
* @PIN_CONFIG_DRIVE_PUSH_PULL: the pin will be driven actively high and
* low, this is the most typical case and is typically achieved with two
* active transistors on the output. Setting this config will enable
* push-pull mode, the argument is ignored.
* @PIN_CONFIG_BIAS_PULL_UP: the pin will be pulled up (usually with high
* impedance to VDD). If the argument is != 0 pull-up is enabled,
* if it is 0, pull-up is total, i.e. the pin is connected to VDD.
* @PIN_CONFIG_DRIVE_OPEN_DRAIN: the pin will be driven with open drain (open
* collector) which means it is usually wired with other output ports
* which are then pulled up with an external resistor. Setting this
@ -176,59 +173,82 @@ struct pinctrl_ops {
* @PIN_CONFIG_DRIVE_OPEN_SOURCE: the pin will be driven with open source
* (open emitter). Setting this config will enable open source mode, the
* argument is ignored.
* @PIN_CONFIG_DRIVE_PUSH_PULL: the pin will be driven actively high and
* low, this is the most typical case and is typically achieved with two
* active transistors on the output. Setting this config will enable
* push-pull mode, the argument is ignored.
* @PIN_CONFIG_DRIVE_STRENGTH: the pin will sink or source at most the current
* passed as argument. The argument is in mA.
* @PIN_CONFIG_INPUT_DEBOUNCE: this will configure the pin to debounce mode,
* which means it will wait for signals to settle when reading inputs. The
* argument gives the debounce time in usecs. Setting the
* argument to zero turns debouncing off.
* @PIN_CONFIG_INPUT_ENABLE: enable the pin's input. Note that this does not
* affect the pin's ability to drive output. 1 enables input, 0 disables
* input.
* @PIN_CONFIG_INPUT_SCHMITT_ENABLE: control schmitt-trigger mode on the pin.
* If the argument != 0, schmitt-trigger mode is enabled. If it's 0,
* schmitt-trigger mode is disabled.
* @PIN_CONFIG_INPUT_SCHMITT: this will configure an input pin to run in
* schmitt-trigger mode. If the schmitt-trigger has adjustable hysteresis,
* the threshold value is given on a custom format as argument when
* setting pins to this mode.
* @PIN_CONFIG_INPUT_DEBOUNCE: this will configure the pin to debounce mode,
* which means it will wait for signals to settle when reading inputs. The
* argument gives the debounce time in usecs. Setting the
* argument to zero turns debouncing off.
* @PIN_CONFIG_INPUT_SCHMITT_ENABLE: control schmitt-trigger mode on the pin.
* If the argument != 0, schmitt-trigger mode is enabled. If it's 0,
* schmitt-trigger mode is disabled.
* @PIN_CONFIG_LOW_POWER_MODE: this will configure the pin for low power
* operation, if several modes of operation are supported these can be
* passed in the argument on a custom form, else just use argument 1
* to indicate low power mode, argument 0 turns low power mode off.
* @PIN_CONFIG_OUTPUT_ENABLE: this will enable the pin's output mode
* without driving a value there. For most platforms this reduces to
* enable the output buffers and then let the pin controller current
* configuration (eg. the currently selected mux function) drive values on
* the line. Use argument 1 to enable output mode, argument 0 to disable
* it.
* @PIN_CONFIG_OUTPUT: this will configure the pin as an output and drive a
* value on the line. Use argument 1 to indicate high level, argument 0 to
* indicate low level. (Please see Documentation/driver-api/pinctl.rst,
* section "GPIO mode pitfalls" for a discussion around this parameter.)
* @PIN_CONFIG_POWER_SOURCE: if the pin can select between different power
* supplies, the argument to this parameter (on a custom format) tells
* the driver which alternative power source to use.
* @PIN_CONFIG_SLEEP_HARDWARE_STATE: indicate this is sleep related state.
* @PIN_CONFIG_SLEW_RATE: if the pin can select slew rate, the argument to
* this parameter (on a custom format) tells the driver which alternative
* slew rate to use.
* @PIN_CONFIG_LOW_POWER_MODE: this will configure the pin for low power
* operation, if several modes of operation are supported these can be
* passed in the argument on a custom form, else just use argument 1
* to indicate low power mode, argument 0 turns low power mode off.
* @PIN_CONFIG_OUTPUT: this will configure the pin as an output. Use argument
* 1 to indicate high level, argument 0 to indicate low level. (Please
* see Documentation/pinctrl.txt, section "GPIO mode pitfalls" for a
* discussion around this parameter.)
* @PIN_CONFIG_SKEW_DELAY: if the pin has programmable skew rate (on inputs)
* or latch delay (on outputs) this parameter (in a custom format)
* specifies the clock skew or latch delay. It typically controls how
* many double inverters are put in front of the line.
* @PIN_CONFIG_END: this is the last enumerator for pin configurations, if
* you need to pass in custom configurations to the pin controller, use
* PIN_CONFIG_END+1 as the base offset.
* @PIN_CONFIG_MAX: this is the maximum configuration value that can be
* presented using the packed format.
*/
#define PIN_CONFIG_BIAS_DISABLE 0
#define PIN_CONFIG_BIAS_HIGH_IMPEDANCE 1
#define PIN_CONFIG_BIAS_BUS_HOLD 2
#define PIN_CONFIG_BIAS_PULL_UP 3
#define PIN_CONFIG_BIAS_PULL_DOWN 4
#define PIN_CONFIG_BIAS_PULL_PIN_DEFAULT 5
#define PIN_CONFIG_DRIVE_PUSH_PULL 6
#define PIN_CONFIG_DRIVE_OPEN_DRAIN 7
#define PIN_CONFIG_DRIVE_OPEN_SOURCE 8
#define PIN_CONFIG_DRIVE_STRENGTH 9
#define PIN_CONFIG_INPUT_ENABLE 10
#define PIN_CONFIG_INPUT_SCHMITT_ENABLE 11
#define PIN_CONFIG_INPUT_SCHMITT 12
#define PIN_CONFIG_INPUT_DEBOUNCE 13
#define PIN_CONFIG_POWER_SOURCE 14
#define PIN_CONFIG_SLEW_RATE 15
#define PIN_CONFIG_LOW_POWER_MODE 16
#define PIN_CONFIG_OUTPUT 17
#define PIN_CONFIG_END 0x7FFF
enum pin_config_param {
PIN_CONFIG_BIAS_BUS_HOLD,
PIN_CONFIG_BIAS_DISABLE,
PIN_CONFIG_BIAS_HIGH_IMPEDANCE,
PIN_CONFIG_BIAS_PULL_DOWN,
PIN_CONFIG_BIAS_PULL_PIN_DEFAULT,
PIN_CONFIG_BIAS_PULL_UP,
PIN_CONFIG_DRIVE_OPEN_DRAIN,
PIN_CONFIG_DRIVE_OPEN_SOURCE,
PIN_CONFIG_DRIVE_PUSH_PULL,
PIN_CONFIG_DRIVE_STRENGTH,
PIN_CONFIG_INPUT_DEBOUNCE,
PIN_CONFIG_INPUT_ENABLE,
PIN_CONFIG_INPUT_SCHMITT,
PIN_CONFIG_INPUT_SCHMITT_ENABLE,
PIN_CONFIG_LOW_POWER_MODE,
PIN_CONFIG_OUTPUT_ENABLE,
PIN_CONFIG_OUTPUT,
PIN_CONFIG_POWER_SOURCE,
PIN_CONFIG_SLEEP_HARDWARE_STATE,
PIN_CONFIG_SLEW_RATE,
PIN_CONFIG_SKEW_DELAY,
PIN_CONFIG_END = 0x7F,
PIN_CONFIG_MAX = 0xFF,
};
#if CONFIG_IS_ENABLED(PINCTRL_GENERIC)
/**

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