| Message ID | 20200716092835.69176-1-linus.walleij@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | gpio: max77620: Use helper variable and clarify | expand |
16.07.2020 12:28, Linus Walleij пишет: > Most other drivers fill out the gpio_irq_chip using a > struct gpio_irq_chip *girq helper variable for ease of > reading. > > We also make a habit of explicitly assigning NULL and > zero to the parent IRQs when using ordinary IRQ handlers > in the driver, mostly for code readability and > maintenance. > > Cc: Dmitry Osipenko <digetx@gmail.com> > Signed-off-by: Linus Walleij <linus.walleij@linaro.org> > --- > drivers/gpio/gpio-max77620.c | 16 +++++++++++----- > 1 file changed, 11 insertions(+), 5 deletions(-) > > diff --git a/drivers/gpio/gpio-max77620.c b/drivers/gpio/gpio-max77620.c > index e090979659eb..7c0a9ef0b500 100644 > --- a/drivers/gpio/gpio-max77620.c > +++ b/drivers/gpio/gpio-max77620.c > @@ -288,6 +288,7 @@ static int max77620_gpio_probe(struct platform_device *pdev) > { > struct max77620_chip *chip = dev_get_drvdata(pdev->dev.parent); > struct max77620_gpio *mgpio; > + struct gpio_irq_chip *girq; > unsigned int gpio_irq; > int ret; > > @@ -316,11 +317,16 @@ static int max77620_gpio_probe(struct platform_device *pdev) > mgpio->gpio_chip.can_sleep = 1; > mgpio->gpio_chip.base = -1; > > - mgpio->gpio_chip.irq.chip = &max77620_gpio_irqchip; > - mgpio->gpio_chip.irq.default_type = IRQ_TYPE_NONE; > - mgpio->gpio_chip.irq.handler = handle_edge_irq; > - mgpio->gpio_chip.irq.init_hw = max77620_gpio_irq_init_hw, > - mgpio->gpio_chip.irq.threaded = true; > + girq = &mgpio->gpio_chip.irq; > + girq->chip = &max77620_gpio_irqchip; > + /* This will let us handle the parent IRQ in the driver */ > + girq->parent_handler = NULL; > + girq->num_parents = 0; > + girq->parents = NULL; > + girq->default_type = IRQ_TYPE_NONE; > + girq->handler = handle_edge_irq; > + girq->init_hw = max77620_gpio_irq_init_hw, > + girq->threaded = true; > > platform_set_drvdata(pdev, mgpio); > > Thanks :) Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
diff --git a/drivers/gpio/gpio-max77620.c b/drivers/gpio/gpio-max77620.c index e090979659eb..7c0a9ef0b500 100644 --- a/drivers/gpio/gpio-max77620.c +++ b/drivers/gpio/gpio-max77620.c @@ -288,6 +288,7 @@ static int max77620_gpio_probe(struct platform_device *pdev) { struct max77620_chip *chip = dev_get_drvdata(pdev->dev.parent); struct max77620_gpio *mgpio; + struct gpio_irq_chip *girq; unsigned int gpio_irq; int ret; @@ -316,11 +317,16 @@ static int max77620_gpio_probe(struct platform_device *pdev) mgpio->gpio_chip.can_sleep = 1; mgpio->gpio_chip.base = -1; - mgpio->gpio_chip.irq.chip = &max77620_gpio_irqchip; - mgpio->gpio_chip.irq.default_type = IRQ_TYPE_NONE; - mgpio->gpio_chip.irq.handler = handle_edge_irq; - mgpio->gpio_chip.irq.init_hw = max77620_gpio_irq_init_hw, - mgpio->gpio_chip.irq.threaded = true; + girq = &mgpio->gpio_chip.irq; + girq->chip = &max77620_gpio_irqchip; + /* This will let us handle the parent IRQ in the driver */ + girq->parent_handler = NULL; + girq->num_parents = 0; + girq->parents = NULL; + girq->default_type = IRQ_TYPE_NONE; + girq->handler = handle_edge_irq; + girq->init_hw = max77620_gpio_irq_init_hw, + girq->threaded = true; platform_set_drvdata(pdev, mgpio);
Most other drivers fill out the gpio_irq_chip using a struct gpio_irq_chip *girq helper variable for ease of reading. We also make a habit of explicitly assigning NULL and zero to the parent IRQs when using ordinary IRQ handlers in the driver, mostly for code readability and maintenance. Cc: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- drivers/gpio/gpio-max77620.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-)