dm: pinctrl: sync with Linux to use pin_config_param

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>

diff --git a/include/dm/pinctrl.h b/include/dm/pinctrl.h
index 0eb4b92..c6c8f61 100644 (file)
--- a/include/dm/pinctrl.h
+++ b/include/dm/pinctrl.h
@@ -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)
 /**