Searched hist:"24 efd94b" (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/drivers/gpio/ |
| H A D | gpio-mmio.c | 24efd94b Fri Oct 20 09:31:27 CDT 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>
|
| /openbmc/linux/include/linux/gpio/ |
| H A D | driver.h | 24efd94b Fri Oct 20 09:31:27 CDT 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>
24efd94b Fri Oct 20 09:31:27 CDT 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>
|