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From: AKASHI Takahiro <takahiro.akashi@linaro.org>
To: sudeep.holla@arm.com, cristian.marussi@arm.com,
	robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
	conor+dt@kernel.org, linus.walleij@linaro.org
Cc: Oleksii_Moisieiev@epam.com, linux-arm-kernel@lists.infradead.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-gpio@vger.kernel.org,
	AKASHI Takahiro <takahiro.akashi@linaro.org>
Subject: [RFC v2 1/5] pinctrl: define PIN_CONFIG_INPUT
Date: Thu,  5 Oct 2023 11:58:39 +0900	[thread overview]
Message-ID: <20231005025843.508689-2-takahiro.akashi@linaro.org> (raw)
In-Reply-To: <20231005025843.508689-1-takahiro.akashi@linaro.org>

This configuration is intended to be used to allow a pin controller based
GPIO driver to obtain a value at a gpio input pin.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
---
RFC v2 (Oct 5, 2023)
* improve a comment against @PIN_CONFIG_INPUT as per Linus
RFC(Oct 2, 2023)
---
 include/linux/pinctrl/pinconf-generic.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h
index d74b7a4ea154..da0d80aa532d 100644
--- a/include/linux/pinctrl/pinconf-generic.h
+++ b/include/linux/pinctrl/pinconf-generic.h
@@ -67,6 +67,10 @@ struct pinctrl_map;
  *	passed as argument. The argument is in mA.
  * @PIN_CONFIG_DRIVE_STRENGTH_UA: the pin will sink or source at most the current
  *	passed as argument. The argument is in uA.
+ * @PIN_CONFIG_INPUT: This will obtain a value on an input pin. To put a line
+ *	into input mode, @PIN_CONFIG_INPUT_ENABLE must be used. Otherwise,
+ *	an error will be returned. The returned argument is 1 for logic high
+ *	and 0 for logic low.
  * @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
@@ -128,6 +132,7 @@ enum pin_config_param {
 	PIN_CONFIG_DRIVE_PUSH_PULL,
 	PIN_CONFIG_DRIVE_STRENGTH,
 	PIN_CONFIG_DRIVE_STRENGTH_UA,
+	PIN_CONFIG_INPUT,
 	PIN_CONFIG_INPUT_DEBOUNCE,
 	PIN_CONFIG_INPUT_ENABLE,
 	PIN_CONFIG_INPUT_SCHMITT,
-- 
2.34.1


WARNING: multiple messages have this Message-ID (diff)
From: AKASHI Takahiro <takahiro.akashi@linaro.org>
To: sudeep.holla@arm.com, cristian.marussi@arm.com,
	robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
	conor+dt@kernel.org, linus.walleij@linaro.org
Cc: Oleksii_Moisieiev@epam.com, linux-arm-kernel@lists.infradead.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-gpio@vger.kernel.org,
	AKASHI Takahiro <takahiro.akashi@linaro.org>
Subject: [RFC v2 1/5] pinctrl: define PIN_CONFIG_INPUT
Date: Thu,  5 Oct 2023 11:58:39 +0900	[thread overview]
Message-ID: <20231005025843.508689-2-takahiro.akashi@linaro.org> (raw)
In-Reply-To: <20231005025843.508689-1-takahiro.akashi@linaro.org>

This configuration is intended to be used to allow a pin controller based
GPIO driver to obtain a value at a gpio input pin.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
---
RFC v2 (Oct 5, 2023)
* improve a comment against @PIN_CONFIG_INPUT as per Linus
RFC(Oct 2, 2023)
---
 include/linux/pinctrl/pinconf-generic.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h
index d74b7a4ea154..da0d80aa532d 100644
--- a/include/linux/pinctrl/pinconf-generic.h
+++ b/include/linux/pinctrl/pinconf-generic.h
@@ -67,6 +67,10 @@ struct pinctrl_map;
  *	passed as argument. The argument is in mA.
  * @PIN_CONFIG_DRIVE_STRENGTH_UA: the pin will sink or source at most the current
  *	passed as argument. The argument is in uA.
+ * @PIN_CONFIG_INPUT: This will obtain a value on an input pin. To put a line
+ *	into input mode, @PIN_CONFIG_INPUT_ENABLE must be used. Otherwise,
+ *	an error will be returned. The returned argument is 1 for logic high
+ *	and 0 for logic low.
  * @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
@@ -128,6 +132,7 @@ enum pin_config_param {
 	PIN_CONFIG_DRIVE_PUSH_PULL,
 	PIN_CONFIG_DRIVE_STRENGTH,
 	PIN_CONFIG_DRIVE_STRENGTH_UA,
+	PIN_CONFIG_INPUT,
 	PIN_CONFIG_INPUT_DEBOUNCE,
 	PIN_CONFIG_INPUT_ENABLE,
 	PIN_CONFIG_INPUT_SCHMITT,
-- 
2.34.1


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  reply	other threads:[~2023-10-05 14:18 UTC|newest]

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-05  2:58 [RFC v2 0/5] gpio: add pinctrl based generic gpio driver AKASHI Takahiro
2023-10-05  2:58 ` AKASHI Takahiro
2023-10-05  2:58 ` AKASHI Takahiro [this message]
2023-10-05  2:58   ` [RFC v2 1/5] pinctrl: define PIN_CONFIG_INPUT AKASHI Takahiro
2023-10-10 11:53   ` Linus Walleij
2023-10-10 11:53     ` Linus Walleij
2023-10-05  2:58 ` [RFC v2 2/5] pinctrl: always export pin_config_get_for_pin() AKASHI Takahiro
2023-10-05  2:58   ` AKASHI Takahiro
2023-10-10 11:54   ` Linus Walleij
2023-10-10 11:54     ` Linus Walleij
2023-10-05  2:58 ` [RFC v2 3/5] pinctrl: add pinctrl_gpio_get_config() AKASHI Takahiro
2023-10-05  2:58   ` AKASHI Takahiro
2023-10-05  2:58 ` [RFC v2 4/5] gpio: add pinctrl based generic gpio driver AKASHI Takahiro
2023-10-05  2:58   ` AKASHI Takahiro
2023-10-10 12:00   ` Linus Walleij
2023-10-10 12:00     ` Linus Walleij
2023-10-12  1:08     ` AKASHI Takahiro
2023-10-12  1:08       ` AKASHI Takahiro
2023-10-05  2:58 ` [RFC v2 5/5] dt-bindings: gpio: Add bindings for " AKASHI Takahiro
2023-10-05  2:58   ` AKASHI Takahiro
2023-10-05 19:48   ` Krzysztof Kozlowski
2023-10-05 19:48     ` Krzysztof Kozlowski
2023-10-12  1:15     ` AKASHI Takahiro
2023-10-12  1:15       ` AKASHI Takahiro
2023-10-12  7:27       ` Krzysztof Kozlowski
2023-10-12  7:27         ` Krzysztof Kozlowski
2023-10-06 13:18   ` Rob Herring
2023-10-06 13:18     ` Rob Herring
2023-10-06 13:23   ` Rob Herring
2023-10-06 13:23     ` Rob Herring
2023-10-09  7:49     ` Linus Walleij
2023-10-09  7:49       ` Linus Walleij
2023-10-09  9:08       ` Cristian Marussi
2023-10-09  9:08         ` Cristian Marussi
2023-10-09 13:13         ` Linus Walleij
2023-10-09 13:13           ` Linus Walleij
2023-10-09 15:08           ` Cristian Marussi
2023-10-09 15:08             ` Cristian Marussi
2023-10-10  5:14             ` AKASHI Takahiro
2023-10-10  5:14               ` AKASHI Takahiro
2023-10-10  5:25       ` AKASHI Takahiro
2023-10-10  5:25         ` AKASHI Takahiro
2023-10-12  7:25         ` Linus Walleij
2023-10-12  7:25           ` Linus Walleij
2023-10-17  2:32           ` AKASHI Takahiro
2023-10-17  2:32             ` AKASHI Takahiro
2023-10-23  8:12             ` Linus Walleij
2023-10-23  8:12               ` Linus Walleij
2023-10-24  7:12               ` AKASHI Takahiro
2023-10-24  7:12                 ` AKASHI Takahiro
2023-10-24  9:40                 ` Linus Walleij
2023-10-24  9:40                   ` Linus Walleij
2023-10-24 10:55                   ` Cristian Marussi
2023-10-24 10:55                     ` Cristian Marussi
2023-10-24 13:01                     ` Linus Walleij
2023-10-24 13:01                       ` Linus Walleij
2023-10-24 11:09                   ` AKASHI Takahiro
2023-10-24 11:09                     ` AKASHI Takahiro
2023-10-24 13:12                     ` Linus Walleij
2023-10-24 13:12                       ` Linus Walleij
2023-10-24 13:42                       ` AKASHI Takahiro
2023-10-24 13:42                         ` AKASHI Takahiro
2023-11-05 22:15                         ` Linus Walleij
2023-11-05 22:15                           ` Linus Walleij
2023-10-19 21:27 ` [RFC v2 0/5] gpio: add " andy.shevchenko
2023-10-19 21:27   ` andy.shevchenko
2023-10-20  0:21   ` AKASHI Takahiro
2023-10-20  0:21     ` AKASHI Takahiro

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