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authorLinus Walleij <linus.walleij@linaro.org>2014-09-26 16:19:52 +0400
committerLinus Walleij <linus.walleij@linaro.org>2014-09-26 16:39:08 +0400
commit3f97d5fcf99cb87f590ffe1d9422b2a26a8ef3ed (patch)
treefd68ce986e6042edebb64bf8ad51aa7f222503f7 /drivers/gpio/gpio-tc3589x.c
parent83141a771975f4e54402ab05e5cbbc3c56f45bdd (diff)
downloadlinux-3f97d5fcf99cb87f590ffe1d9422b2a26a8ef3ed.tar.xz
gpio: handle also nested irqchips in the chained handler set-up
To unify how we connect cascaded IRQ chips to parent IRQs, if NULL us passed as handler to the gpiochip_set_chained_irqchip() function, assume the chips is nested rather than chained, and we still get the parent set up correctly by way of this function call. Alter the drivers for tc3589x and stmpe to use this to set up their chained handlers as a demonstration of the usage. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-tc3589x.c')
-rw-r--r--drivers/gpio/gpio-tc3589x.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-tc3589x.c b/drivers/gpio/gpio-tc3589x.c
index 7324869c38e0..ae0f6466eb09 100644
--- a/drivers/gpio/gpio-tc3589x.c
+++ b/drivers/gpio/gpio-tc3589x.c
@@ -300,6 +300,11 @@ static int tc3589x_gpio_probe(struct platform_device *pdev)
return ret;
}
+ gpiochip_set_chained_irqchip(&tc3589x_gpio->chip,
+ &tc3589x_gpio_irq_chip,
+ irq,
+ NULL);
+
if (pdata && pdata->setup)
pdata->setup(tc3589x, tc3589x_gpio->chip.base);