summaryrefslogtreecommitdiffstats
path: root/drivers/gpio/gpio-74x164.c
diff options
context:
space:
mode:
authorLinus Walleij <linus.walleij@linaro.org>2016-11-24 10:57:25 +0100
committerLinus Walleij <linus.walleij@linaro.org>2016-11-25 15:12:27 +0100
commitd245b3f9bd36f02fd641cba9931d8b4c77126e74 (patch)
treefa9984376f28c4f6b8883aff8a704178aa68412f /drivers/gpio/gpio-74x164.c
parentLinux 4.9-rc2 (diff)
downloadlinux-d245b3f9bd36f02fd641cba9931d8b4c77126e74.tar.xz
linux-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-74x164.c')
0 files changed, 0 insertions, 0 deletions