The "secondary irq" in the nomadik pin control driver is actually not secondary (as in: can occur any time alongside the ordinary irq), it is a latent IRQ. It is an IRQ that has occurred when the system was in sleep state and has been cached in a special register flagged from the low power management unit (PRCM).
Signed-off-by: Linus Walleij <[email protected]> --- drivers/pinctrl/pinctrl-nomadik.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c index cec7762cf335..ee6a8ca264fc 100644 --- a/drivers/pinctrl/pinctrl-nomadik.c +++ b/drivers/pinctrl/pinctrl-nomadik.c @@ -254,7 +254,7 @@ struct nmk_gpio_platform_data { int first_gpio; int first_irq; int num_gpio; - u32 (*get_secondary_status)(unsigned int bank); + u32 (*get_latent_status)(unsigned int bank); void (*set_ioforce)(bool enable); bool supports_sleepmode; }; @@ -266,8 +266,8 @@ struct nmk_gpio_chip { struct clk *clk; unsigned int bank; unsigned int parent_irq; - int secondary_parent_irq; - u32 (*get_secondary_status)(unsigned int bank); + int latent_parent_irq; + u32 (*get_latent_status)(unsigned int bank); void (*set_ioforce)(bool enable); spinlock_t lock; bool sleepmode; @@ -909,11 +909,11 @@ static void nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc) __nmk_gpio_irq_handler(irq, desc, status); } -static void nmk_gpio_secondary_irq_handler(unsigned int irq, +static void nmk_gpio_latent_irq_handler(unsigned int irq, struct irq_desc *desc) { struct nmk_gpio_chip *nmk_chip = irq_get_handler_data(irq); - u32 status = nmk_chip->get_secondary_status(nmk_chip->bank); + u32 status = nmk_chip->get_latent_status(nmk_chip->bank); __nmk_gpio_irq_handler(irq, desc, status); } @@ -923,10 +923,10 @@ static int nmk_gpio_init_irq(struct nmk_gpio_chip *nmk_chip) irq_set_chained_handler(nmk_chip->parent_irq, nmk_gpio_irq_handler); irq_set_handler_data(nmk_chip->parent_irq, nmk_chip); - if (nmk_chip->secondary_parent_irq >= 0) { - irq_set_chained_handler(nmk_chip->secondary_parent_irq, - nmk_gpio_secondary_irq_handler); - irq_set_handler_data(nmk_chip->secondary_parent_irq, nmk_chip); + if (nmk_chip->latent_parent_irq >= 0) { + irq_set_chained_handler(nmk_chip->latent_parent_irq, + nmk_gpio_latent_irq_handler); + irq_set_handler_data(nmk_chip->latent_parent_irq, nmk_chip); } return 0; @@ -1246,7 +1246,7 @@ static int nmk_gpio_probe(struct platform_device *dev) struct gpio_chip *chip; struct resource *res; struct clk *clk; - int secondary_irq; + int latent_irq; void __iomem *base; int irq; int ret; @@ -1270,8 +1270,8 @@ static int nmk_gpio_probe(struct platform_device *dev) if (irq < 0) return irq; - secondary_irq = platform_get_irq(dev, 1); - if (secondary_irq >= 0 && !pdata->get_secondary_status) + latent_irq = platform_get_irq(dev, 1); + if (latent_irq >= 0 && !pdata->get_latent_status) return -EINVAL; res = platform_get_resource(dev, IORESOURCE_MEM, 0); @@ -1297,8 +1297,8 @@ static int nmk_gpio_probe(struct platform_device *dev) nmk_chip->addr = base; nmk_chip->chip = nmk_gpio_template; nmk_chip->parent_irq = irq; - nmk_chip->secondary_parent_irq = secondary_irq; - nmk_chip->get_secondary_status = pdata->get_secondary_status; + nmk_chip->latent_parent_irq = latent_irq; + nmk_chip->get_latent_status = pdata->get_latent_status; nmk_chip->set_ioforce = pdata->set_ioforce; nmk_chip->sleepmode = pdata->supports_sleepmode; spin_lock_init(&nmk_chip->lock); -- 1.8.5.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
