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pinctrl: pinconf-generic: Add support for "output-impedance-ohms" to be extracted from DT files

Add "output-impedance-ohms" property to generic options used for DT parsing files. This enables drivers, which use generic pin configurations, to get the value passed to this property.

Lad Prabhakar committed 5 years ago

Commit 032816f1 parent 7388fa82 files · +5 −0Browse files

Showing the changes to include/linux/pinctrl (1 of 2 files). Show all

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include/linux/pinctrl/pinconf-generic.h+3−0
@@ -91,6 +91,8 @@ struct pinctrl_map; · 90 unmodified lines
9191 * configuration (eg. the currently selected mux function) drive values on
9292 * the line. Use argument 1 to enable output mode, argument 0 to disable
9393 * it.
94+ * @PIN_CONFIG_OUTPUT_IMPEDANCE_OHMS: this will configure the output impedance
95+ * of the pin with the value passed as argument. The argument is in ohms.
9496 * @PIN_CONFIG_PERSIST_STATE: retain pin state across sleep or controller reset
9597 * @PIN_CONFIG_POWER_SOURCE: if the pin can select between different power
9698 * supplies, the argument to this parameter (on a custom format) tells
@@ -129,6 +131,7 @@ enum pin_config_param { · 32 unmodified lines
129131 PIN_CONFIG_MODE_PWM,
130132 PIN_CONFIG_OUTPUT,
131133 PIN_CONFIG_OUTPUT_ENABLE,
134+ PIN_CONFIG_OUTPUT_IMPEDANCE_OHMS,
132135 PIN_CONFIG_PERSIST_STATE,
133136 PIN_CONFIG_POWER_SOURCE,
134137 PIN_CONFIG_SKEW_DELAY,