Searched hist:"24 efd94bc38290dc1d9775a1e767ed4685d8a79b" (Results 1 – 2 of 2) sorted by relevance
| /linux/drivers/gpio/ |
| H A D | gpio-mmio.c | diff 24efd94bc38290dc1d9775a1e767ed4685d8a79b Fri Oct 20 16:31:27 CEST 2017 Linus Walleij <linus.walleij@linaro.org> gpio: mmio: Make pin2mask() a private business
The vtable call pin2mask() was introducing a vtable function call
in every gpiochip callback for a generic MMIO GPIO chip. This was
not exactly efficient. (Maybe link-time optimization could get rid of
it, I don't know.)
After removing all external calls into this API we can make it a
boolean flag in the struct gpio_chip call and sink the function into
the gpio-mmio driver yielding encapsulation and potential speedups.
Cc: Anton Vorontsov <anton@enomsg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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| /linux/include/linux/gpio/ |
| H A D | driver.h | diff 24efd94bc38290dc1d9775a1e767ed4685d8a79b Fri Oct 20 16:31:27 CEST 2017 Linus Walleij <linus.walleij@linaro.org> gpio: mmio: Make pin2mask() a private business
The vtable call pin2mask() was introducing a vtable function call
in every gpiochip callback for a generic MMIO GPIO chip. This was
not exactly efficient. (Maybe link-time optimization could get rid of
it, I don't know.)
After removing all external calls into this API we can make it a
boolean flag in the struct gpio_chip call and sink the function into
the gpio-mmio driver yielding encapsulation and potential speedups.
Cc: Anton Vorontsov <anton@enomsg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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