[PATCH AUTOSEL 5.19 21/38] gpio: mockup: remove gpio debugfs when remove device

[PATCH AUTOSEL 5.19 21/38] gpio: mockup: remove gpio debugfs when remove device

[Sasha Levin]

From: Wei Yongjun <weiyongjun1@huawei.com>

[ Upstream commit 303e6da99429510b1e4edf833afe90ac8542e747 ]

GPIO mockup debugfs is created in gpio_mockup_probe() but
forgot to remove when remove device. This patch add a devm
managed callback for removing them.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-mockup.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-mockup.c b/drivers/gpio/gpio-mockup.c
index 8943cea927642..a2e505a7545cd 100644
--- a/drivers/gpio/gpio-mockup.c
+++ b/drivers/gpio/gpio-mockup.c
@@ -373,6 +373,13 @@ static void gpio_mockup_debugfs_setup(struct device *dev,
 	}
 }
 
+static void gpio_mockup_debugfs_cleanup(void *data)
+{
+	struct gpio_mockup_chip *chip = data;
+
+	debugfs_remove_recursive(chip->dbg_dir);
+}
+
 static void gpio_mockup_dispose_mappings(void *data)
 {
 	struct gpio_mockup_chip *chip = data;
@@ -455,7 +462,7 @@ static int gpio_mockup_probe(struct platform_device *pdev)
 
 	gpio_mockup_debugfs_setup(dev, chip);
 
-	return 0;
+	return devm_add_action_or_reset(dev, gpio_mockup_debugfs_cleanup, chip);
 }
 
 static const struct of_device_id gpio_mockup_of_match[] = {
-- 
2.35.1

[PATCH AUTOSEL 5.19 37/38] gpio: 104-dio-48e: Make irq_chip immutable

[Sasha Levin]

From: William Breathitt Gray <william.gray@linaro.org>

[ Upstream commit 35f0aa7727b092520bf91374768a4fdafd4a4fe3 ]

Kernel warns about mutable irq_chips:

    "not an immutable chip, please consider fixing!"

Make the struct irq_chip const, flag it as IRQCHIP_IMMUTABLE, add the
new helper functions, and call the appropriate gpiolib functions.

Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-104-dio-48e.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-104-dio-48e.c b/drivers/gpio/gpio-104-dio-48e.c
index f118ad9bcd33d..0e95351d47d49 100644
--- a/drivers/gpio/gpio-104-dio-48e.c
+++ b/drivers/gpio/gpio-104-dio-48e.c
@@ -271,6 +271,7 @@ static void dio48e_irq_mask(struct irq_data *data)
 		dio48egpio->irq_mask &= ~BIT(0);
 	else
 		dio48egpio->irq_mask &= ~BIT(1);
+	gpiochip_disable_irq(chip, offset);
 
 	if (!dio48egpio->irq_mask)
 		/* disable interrupts */
@@ -298,6 +299,7 @@ static void dio48e_irq_unmask(struct irq_data *data)
 		iowrite8(0x00, dio48egpio->base + 0xB);
 	}
 
+	gpiochip_enable_irq(chip, offset);
 	if (offset == 19)
 		dio48egpio->irq_mask |= BIT(0);
 	else
@@ -320,12 +322,14 @@ static int dio48e_irq_set_type(struct irq_data *data, unsigned int flow_type)
 	return 0;
 }
 
-static struct irq_chip dio48e_irqchip = {
+static const struct irq_chip dio48e_irqchip = {
 	.name = "104-dio-48e",
 	.irq_ack = dio48e_irq_ack,
 	.irq_mask = dio48e_irq_mask,
 	.irq_unmask = dio48e_irq_unmask,
-	.irq_set_type = dio48e_irq_set_type
+	.irq_set_type = dio48e_irq_set_type,
+	.flags = IRQCHIP_IMMUTABLE,
+	GPIOCHIP_IRQ_RESOURCE_HELPERS,
 };
 
 static irqreturn_t dio48e_irq_handler(int irq, void *dev_id)
@@ -414,7 +418,7 @@ static int dio48e_probe(struct device *dev, unsigned int id)
 	dio48egpio->chip.set_multiple = dio48e_gpio_set_multiple;
 
 	girq = &dio48egpio->chip.irq;
-	girq->chip = &dio48e_irqchip;
+	gpio_irq_chip_set_chip(girq, &dio48e_irqchip);
 	/* This will let us handle the parent IRQ in the driver */
 	girq->parent_handler = NULL;
 	girq->num_parents = 0;
-- 
2.35.1

[PATCH AUTOSEL 5.19 38/38] gpio: 104-idio-16: Make irq_chip immutable

[Sasha Levin]

From: William Breathitt Gray <william.gray@linaro.org>

[ Upstream commit 410a5041aa60d91ff66a861560e7c879d664270f ]

Kernel warns about mutable irq_chips:

    "not an immutable chip, please consider fixing!"

Make the struct irq_chip const, flag it as IRQCHIP_IMMUTABLE, add the
new helper functions, and call the appropriate gpiolib functions.

Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-104-idio-16.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/gpio/gpio-104-idio-16.c b/drivers/gpio/gpio-104-idio-16.c
index 45f7ad8573e19..a8b7c8eafac5a 100644
--- a/drivers/gpio/gpio-104-idio-16.c
+++ b/drivers/gpio/gpio-104-idio-16.c
@@ -150,10 +150,11 @@ static void idio_16_irq_mask(struct irq_data *data)
 {
 	struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
 	struct idio_16_gpio *const idio16gpio = gpiochip_get_data(chip);
-	const unsigned long mask = BIT(irqd_to_hwirq(data));
+	const unsigned long offset = irqd_to_hwirq(data);
 	unsigned long flags;
 
-	idio16gpio->irq_mask &= ~mask;
+	idio16gpio->irq_mask &= ~BIT(offset);
+	gpiochip_disable_irq(chip, offset);
 
 	if (!idio16gpio->irq_mask) {
 		raw_spin_lock_irqsave(&idio16gpio->lock, flags);
@@ -168,11 +169,12 @@ static void idio_16_irq_unmask(struct irq_data *data)
 {
 	struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
 	struct idio_16_gpio *const idio16gpio = gpiochip_get_data(chip);
-	const unsigned long mask = BIT(irqd_to_hwirq(data));
+	const unsigned long offset = irqd_to_hwirq(data);
 	const unsigned long prev_irq_mask = idio16gpio->irq_mask;
 	unsigned long flags;
 
-	idio16gpio->irq_mask |= mask;
+	gpiochip_enable_irq(chip, offset);
+	idio16gpio->irq_mask |= BIT(offset);
 
 	if (!prev_irq_mask) {
 		raw_spin_lock_irqsave(&idio16gpio->lock, flags);
@@ -193,12 +195,14 @@ static int idio_16_irq_set_type(struct irq_data *data, unsigned int flow_type)
 	return 0;
 }
 
-static struct irq_chip idio_16_irqchip = {
+static const struct irq_chip idio_16_irqchip = {
 	.name = "104-idio-16",
 	.irq_ack = idio_16_irq_ack,
 	.irq_mask = idio_16_irq_mask,
 	.irq_unmask = idio_16_irq_unmask,
-	.irq_set_type = idio_16_irq_set_type
+	.irq_set_type = idio_16_irq_set_type,
+	.flags = IRQCHIP_IMMUTABLE,
+	GPIOCHIP_IRQ_RESOURCE_HELPERS,
 };
 
 static irqreturn_t idio_16_irq_handler(int irq, void *dev_id)
@@ -275,7 +279,7 @@ static int idio_16_probe(struct device *dev, unsigned int id)
 	idio16gpio->out_state = 0xFFFF;
 
 	girq = &idio16gpio->chip.irq;
-	girq->chip = &idio_16_irqchip;
+	gpio_irq_chip_set_chip(girq, &idio_16_irqchip);
 	/* This will let us handle the parent IRQ in the driver */
 	girq->parent_handler = NULL;
 	girq->num_parents = 0;
-- 
2.35.1