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

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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.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20211027134509.5036-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Lad Prabhakar
2021-10-27 14:45:07 +01:00
committed by Geert Uytterhoeven
parent 7388fa8acf
commit 032816fbbf
2 changed files with 5 additions and 0 deletions
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3
include/linux/pinctrl/pinconf-generic.h
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@@ -91,6 +91,8 @@ struct pinctrl_map;
* 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_IMPEDANCE_OHMS: this will configure the output impedance
* of the pin with the value passed as argument. The argument is in ohms.
* @PIN_CONFIG_PERSIST_STATE: retain pin state across sleep or controller reset
* @PIN_CONFIG_POWER_SOURCE: if the pin can select between different power
* supplies, the argument to this parameter (on a custom format) tells
@@ -129,6 +131,7 @@ enum pin_config_param {
PIN_CONFIG_MODE_PWM,
PIN_CONFIG_OUTPUT,
PIN_CONFIG_OUTPUT_ENABLE,
PIN_CONFIG_OUTPUT_IMPEDANCE_OHMS,
PIN_CONFIG_PERSIST_STATE,
PIN_CONFIG_POWER_SOURCE,
PIN_CONFIG_SKEW_DELAY,