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From: John Keeping <john@metanate.com>
To: linux-gpio@vger.kernel.org
Cc: John Keeping <john@metanate.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	Bartosz Golaszewski <brgl@bgdev.pl>,
	Heiko Stuebner <heiko@sntech.de>,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] gpio/rockchip: lock GPIOs used as interrupts
Date: Thu,  2 Dec 2021 15:50:21 +0000	[thread overview]
Message-ID: <20211202155022.2972779-1-john@metanate.com> (raw)

Use the standard gpiochip request/release resource functions so that any
GPIOs used as interrupts are properly locked.  This allows libgpiod to
correctly show these GPIOs as in-use.

Signed-off-by: John Keeping <john@metanate.com>
---
 drivers/gpio/gpio-rockchip.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c
index ce63cbd14d69a..c1b8e5dbbcc47 100644
--- a/drivers/gpio/gpio-rockchip.c
+++ b/drivers/gpio/gpio-rockchip.c
@@ -465,6 +465,22 @@ static int rockchip_irq_set_type(struct irq_data *d, unsigned int type)
 	return ret;
 }
 
+static int rockchip_irq_reqres(struct irq_data *d)
+{
+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	struct rockchip_pin_bank *bank = gc->private;
+
+	return gpiochip_reqres_irq(&bank->gpio_chip, d->hwirq);
+}
+
+static void rockchip_irq_relres(struct irq_data *d)
+{
+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	struct rockchip_pin_bank *bank = gc->private;
+
+	gpiochip_relres_irq(&bank->gpio_chip, d->hwirq);
+}
+
 static void rockchip_irq_suspend(struct irq_data *d)
 {
 	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
@@ -536,6 +552,8 @@ static int rockchip_interrupts_register(struct rockchip_pin_bank *bank)
 	gc->chip_types[0].chip.irq_suspend = rockchip_irq_suspend;
 	gc->chip_types[0].chip.irq_resume = rockchip_irq_resume;
 	gc->chip_types[0].chip.irq_set_type = rockchip_irq_set_type;
+	gc->chip_types[0].chip.irq_request_resources = rockchip_irq_reqres;
+	gc->chip_types[0].chip.irq_release_resources = rockchip_irq_relres;
 	gc->wake_enabled = IRQ_MSK(bank->nr_pins);
 
 	/*
-- 
2.34.1


WARNING: multiple messages have this Message-ID (diff)
From: John Keeping <john@metanate.com>
To: linux-gpio@vger.kernel.org
Cc: John Keeping <john@metanate.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	Bartosz Golaszewski <brgl@bgdev.pl>,
	Heiko Stuebner <heiko@sntech.de>,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] gpio/rockchip: lock GPIOs used as interrupts
Date: Thu,  2 Dec 2021 15:50:21 +0000	[thread overview]
Message-ID: <20211202155022.2972779-1-john@metanate.com> (raw)

Use the standard gpiochip request/release resource functions so that any
GPIOs used as interrupts are properly locked.  This allows libgpiod to
correctly show these GPIOs as in-use.

Signed-off-by: John Keeping <john@metanate.com>
---
 drivers/gpio/gpio-rockchip.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c
index ce63cbd14d69a..c1b8e5dbbcc47 100644
--- a/drivers/gpio/gpio-rockchip.c
+++ b/drivers/gpio/gpio-rockchip.c
@@ -465,6 +465,22 @@ static int rockchip_irq_set_type(struct irq_data *d, unsigned int type)
 	return ret;
 }
 
+static int rockchip_irq_reqres(struct irq_data *d)
+{
+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	struct rockchip_pin_bank *bank = gc->private;
+
+	return gpiochip_reqres_irq(&bank->gpio_chip, d->hwirq);
+}
+
+static void rockchip_irq_relres(struct irq_data *d)
+{
+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	struct rockchip_pin_bank *bank = gc->private;
+
+	gpiochip_relres_irq(&bank->gpio_chip, d->hwirq);
+}
+
 static void rockchip_irq_suspend(struct irq_data *d)
 {
 	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
@@ -536,6 +552,8 @@ static int rockchip_interrupts_register(struct rockchip_pin_bank *bank)
 	gc->chip_types[0].chip.irq_suspend = rockchip_irq_suspend;
 	gc->chip_types[0].chip.irq_resume = rockchip_irq_resume;
 	gc->chip_types[0].chip.irq_set_type = rockchip_irq_set_type;
+	gc->chip_types[0].chip.irq_request_resources = rockchip_irq_reqres;
+	gc->chip_types[0].chip.irq_release_resources = rockchip_irq_relres;
 	gc->wake_enabled = IRQ_MSK(bank->nr_pins);
 
 	/*
-- 
2.34.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

WARNING: multiple messages have this Message-ID (diff)
From: John Keeping <john@metanate.com>
To: linux-gpio@vger.kernel.org
Cc: John Keeping <john@metanate.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	Bartosz Golaszewski <brgl@bgdev.pl>,
	Heiko Stuebner <heiko@sntech.de>,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] gpio/rockchip: lock GPIOs used as interrupts
Date: Thu,  2 Dec 2021 15:50:21 +0000	[thread overview]
Message-ID: <20211202155022.2972779-1-john@metanate.com> (raw)

Use the standard gpiochip request/release resource functions so that any
GPIOs used as interrupts are properly locked.  This allows libgpiod to
correctly show these GPIOs as in-use.

Signed-off-by: John Keeping <john@metanate.com>
---
 drivers/gpio/gpio-rockchip.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c
index ce63cbd14d69a..c1b8e5dbbcc47 100644
--- a/drivers/gpio/gpio-rockchip.c
+++ b/drivers/gpio/gpio-rockchip.c
@@ -465,6 +465,22 @@ static int rockchip_irq_set_type(struct irq_data *d, unsigned int type)
 	return ret;
 }
 
+static int rockchip_irq_reqres(struct irq_data *d)
+{
+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	struct rockchip_pin_bank *bank = gc->private;
+
+	return gpiochip_reqres_irq(&bank->gpio_chip, d->hwirq);
+}
+
+static void rockchip_irq_relres(struct irq_data *d)
+{
+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	struct rockchip_pin_bank *bank = gc->private;
+
+	gpiochip_relres_irq(&bank->gpio_chip, d->hwirq);
+}
+
 static void rockchip_irq_suspend(struct irq_data *d)
 {
 	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
@@ -536,6 +552,8 @@ static int rockchip_interrupts_register(struct rockchip_pin_bank *bank)
 	gc->chip_types[0].chip.irq_suspend = rockchip_irq_suspend;
 	gc->chip_types[0].chip.irq_resume = rockchip_irq_resume;
 	gc->chip_types[0].chip.irq_set_type = rockchip_irq_set_type;
+	gc->chip_types[0].chip.irq_request_resources = rockchip_irq_reqres;
+	gc->chip_types[0].chip.irq_release_resources = rockchip_irq_relres;
 	gc->wake_enabled = IRQ_MSK(bank->nr_pins);
 
 	/*
-- 
2.34.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

             reply	other threads:[~2021-12-02 15:51 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-02 15:50 John Keeping [this message]
2021-12-02 15:50 ` [PATCH] gpio/rockchip: lock GPIOs used as interrupts John Keeping
2021-12-02 15:50 ` John Keeping
2021-12-02 16:45 ` Nicolas Frattaroli
2021-12-02 16:45   ` Nicolas Frattaroli
2021-12-02 16:45   ` Nicolas Frattaroli
2021-12-03 14:59 ` Bartosz Golaszewski
2021-12-03 14:59   ` Bartosz Golaszewski
2021-12-03 14:59   ` Bartosz Golaszewski

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