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 3/5] pinctrl: add pinctrl_gpio_get_config()
Date: Thu, 5 Oct 2023 11:58:41 +0900 [thread overview]
Message-ID: <20231005025843.508689-4-takahiro.akashi@linaro.org> (raw)
In-Reply-To: <20231005025843.508689-1-takahiro.akashi@linaro.org>
This is a counterpart of pinctrl_gpio_set_config() which will be used,
at least initially, to implement gpio_get interface in pin controller
based generic gpio driver.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
RFC (Oct 2, 2023)
---
drivers/pinctrl/core.c | 19 +++++++++++++++++++
include/linux/pinctrl/consumer.h | 8 ++++++++
2 files changed, 27 insertions(+)
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index e9dc9638120a..2f9c2efdfe0e 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -926,6 +926,25 @@ int pinctrl_gpio_set_config(unsigned gpio, unsigned long config)
}
EXPORT_SYMBOL_GPL(pinctrl_gpio_set_config);
+int pinctrl_gpio_get_config(unsigned int gpio, unsigned long *config)
+{
+ struct pinctrl_gpio_range *range;
+ struct pinctrl_dev *pctldev;
+ int ret, pin;
+
+ ret = pinctrl_get_device_gpio_range(gpio, &pctldev, &range);
+ if (ret)
+ return ret;
+
+ mutex_lock(&pctldev->mutex);
+ pin = gpio_to_pin(range, gpio);
+ ret = pin_config_get_for_pin(pctldev, pin, config);
+ mutex_unlock(&pctldev->mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(pinctrl_gpio_get_config);
+
static struct pinctrl_state *find_state(struct pinctrl *p,
const char *name)
{
diff --git a/include/linux/pinctrl/consumer.h b/include/linux/pinctrl/consumer.h
index 4729d54e8995..852fac97a79b 100644
--- a/include/linux/pinctrl/consumer.h
+++ b/include/linux/pinctrl/consumer.h
@@ -31,6 +31,8 @@ extern void pinctrl_gpio_free(unsigned gpio);
extern int pinctrl_gpio_direction_input(unsigned gpio);
extern int pinctrl_gpio_direction_output(unsigned gpio);
extern int pinctrl_gpio_set_config(unsigned gpio, unsigned long config);
+extern int pinctrl_gpio_get_config(unsigned int gpio,
+ unsigned long *config);
extern struct pinctrl * __must_check pinctrl_get(struct device *dev);
extern void pinctrl_put(struct pinctrl *p);
@@ -92,6 +94,12 @@ static inline int pinctrl_gpio_set_config(unsigned gpio, unsigned long config)
return 0;
}
+static inline int pinctrl_gpio_get_config(unsigned int gpio,
+ unsigned long *config)
+{
+ return 0;
+}
+
static inline struct pinctrl * __must_check pinctrl_get(struct device *dev)
{
return NULL;
--
2.34.1
next prev parent reply other threads:[~2023-10-05 16:34 UTC|newest]
Thread overview: 34+ 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 ` [RFC v2 1/5] pinctrl: define PIN_CONFIG_INPUT AKASHI Takahiro
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
2023-10-10 11:54 ` Linus Walleij
2023-10-05 2:58 ` AKASHI Takahiro [this message]
2023-10-05 2:58 ` [RFC v2 4/5] gpio: add pinctrl based generic gpio driver AKASHI Takahiro
2023-10-10 12:00 ` Linus Walleij
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 19:48 ` Krzysztof Kozlowski
2023-10-12 1:15 ` AKASHI Takahiro
2023-10-12 7:27 ` Krzysztof Kozlowski
2023-10-06 13:18 ` Rob Herring
2023-10-06 13:23 ` Rob Herring
2023-10-09 7:49 ` Linus Walleij
2023-10-09 9:08 ` Cristian Marussi
2023-10-09 13:13 ` Linus Walleij
2023-10-09 15:08 ` Cristian Marussi
2023-10-10 5:14 ` AKASHI Takahiro
2023-10-10 5:25 ` AKASHI Takahiro
2023-10-12 7:25 ` Linus Walleij
2023-10-17 2:32 ` AKASHI Takahiro
2023-10-23 8:12 ` Linus Walleij
2023-10-24 7:12 ` AKASHI Takahiro
2023-10-24 9:40 ` Linus Walleij
2023-10-24 10:55 ` Cristian Marussi
2023-10-24 13:01 ` Linus Walleij
2023-10-24 11:09 ` AKASHI Takahiro
2023-10-24 13:12 ` Linus Walleij
2023-10-24 13:42 ` AKASHI Takahiro
2023-11-05 22:15 ` Linus Walleij
2023-10-19 21:27 ` [RFC v2 0/5] gpio: add " andy.shevchenko
2023-10-20 0:21 ` AKASHI Takahiro
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