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author | Linus Walleij <linus.walleij@linaro.org> | 2016-11-24 10:57:25 +0100 |
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committer | Linus Walleij <linus.walleij@linaro.org> | 2016-11-25 15:12:27 +0100 |
commit | d245b3f9bd36f02fd641cba9931d8b4c77126e74 (patch) | |
tree | fa9984376f28c4f6b8883aff8a704178aa68412f /drivers/gpio/gpio-dln2.c | |
parent | 07d9a380680d1c0eb51ef87ff2eab5c994949e69 (diff) | |
download | linux-stable-d245b3f9bd36f02fd641cba9931d8b4c77126e74.tar.gz linux-stable-d245b3f9bd36f02fd641cba9931d8b4c77126e74.tar.bz2 linux-stable-d245b3f9bd36f02fd641cba9931d8b4c77126e74.zip |
gpio: simplify adding threaded interrupts
This tries to simplify the use of CONFIG_GPIOLIB_IRQCHIP when
using threaded interrupts: add a new call
gpiochip_irqchip_add_nested() to indicate that we're dealing
with a nested rather than a chained irqchip, then create a
separate gpiochip_set_nested_irqchip() to mirror
the gpiochip_set_chained_irqchip() call to connect the
parent and child interrupts.
In the nested case gpiochip_set_nested_irqchip() does nothing
more than call irq_set_parent() on each valid child interrupt,
which has little semantic effect in the kernel, but this is
probably still formally correct.
Update all drivers using nested interrupts to use
gpiochip_irqchip_add_nested() so we can now see clearly
which these users are.
The DLN2 driver can drop its specific hack with
.irq_not_threaded as we now recognize whether a chip is
threaded or not from its use of gpiochip_irqchip_add_nested()
signature rather than from inspecting .can_sleep.
We rename the .irq_parent to .irq_chained_parent since this
parent IRQ is only really kept around for the chained
interrupt handlers.
Cc: Lars Poeschel <poeschel@lemonage.de>
Cc: Octavian Purdila <octavian.purdila@intel.com>
Cc: Daniel Baluta <daniel.baluta@intel.com>
Cc: Bin Gao <bin.gao@linux.intel.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Ajay Thomas <ajay.thomas.david.rajamanickam@intel.com>
Cc: Semen Protsenko <semen.protsenko@globallogic.com>
Cc: Alexander Stein <alexander.stein@systec-electronic.com>
Cc: Phil Reid <preid@electromag.com.au>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-dln2.c')
-rw-r--r-- | drivers/gpio/gpio-dln2.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-dln2.c b/drivers/gpio/gpio-dln2.c index f7a60a441e95..5d38b08d1ee2 100644 --- a/drivers/gpio/gpio-dln2.c +++ b/drivers/gpio/gpio-dln2.c @@ -467,7 +467,6 @@ static int dln2_gpio_probe(struct platform_device *pdev) dln2->gpio.base = -1; dln2->gpio.ngpio = pins; dln2->gpio.can_sleep = true; - dln2->gpio.irq_not_threaded = true; dln2->gpio.set = dln2_gpio_set; dln2->gpio.get = dln2_gpio_get; dln2->gpio.request = dln2_gpio_request; |