| Message ID | 20190404165715.4237-1-linus.walleij@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | gpio: mmio: Drop bgpio_dir_inverted | expand |
czw., 4 kwi 2019 o 18:57 Linus Walleij <linus.walleij@linaro.org> napisał(a): > > The direction inversion semantics are now handled by simply > using the registers for in/out available, no need to keep > track of inversion semantics exmplicitly anymore. > > Cc: Jan Kotas <jank@cadence.com> > Signed-off-by: Linus Walleij <linus.walleij@linaro.org> > --- > drivers/gpio/gpio-mmio.c | 7 ------- > include/linux/gpio/driver.h | 4 ---- > 2 files changed, 11 deletions(-) > > diff --git a/drivers/gpio/gpio-mmio.c b/drivers/gpio/gpio-mmio.c > index 04be18b95485..6f904c874678 100644 > --- a/drivers/gpio/gpio-mmio.c > +++ b/drivers/gpio/gpio-mmio.c > @@ -533,13 +533,6 @@ static int bgpio_setup_direction(struct gpio_chip *gc, > gc->direction_output = bgpio_dir_out; > gc->direction_input = bgpio_dir_in; > gc->get_direction = bgpio_get_dir; > - /* > - * If only dirin is available, this means we need > - * inverted semantics when handling get/set registers > - * so detect this here. > - */ > - if (dirin && !dirout) > - gc->bgpio_dir_inverted = true; > } else { > if (flags & BGPIOF_NO_OUTPUT) > gc->direction_output = bgpio_dir_out_err; > diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h > index 95a51794c24a..4d69d458cf9f 100644 > --- a/include/linux/gpio/driver.h > +++ b/include/linux/gpio/driver.h > @@ -229,9 +229,6 @@ struct gpio_irq_chip { > * @reg_clr: output clear register (out=low) for generic GPIO > * @reg_dir_out: direction out setting register for generic GPIO > * @reg_dir_in: direction in setting register for generic GPIO > - * @bgpio_dir_inverted: indicates that the direction register is inverted > - * (gpiolib private state variable) this means @reg_dir_in is > - * available but not @reg_dir_out. > * @bgpio_dir_unreadable: indicates that the direction register(s) cannot > * be read and we need to rely on out internal state tracking. > * @bgpio_bits: number of register bits used for a generic GPIO i.e. > @@ -305,7 +302,6 @@ struct gpio_chip { > void __iomem *reg_clr; > void __iomem *reg_dir_out; > void __iomem *reg_dir_in; > - bool bgpio_dir_inverted; > bool bgpio_dir_unreadable; > int bgpio_bits; > spinlock_t bgpio_lock; > -- > 2.20.1 > Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
diff --git a/drivers/gpio/gpio-mmio.c b/drivers/gpio/gpio-mmio.c index 04be18b95485..6f904c874678 100644 --- a/drivers/gpio/gpio-mmio.c +++ b/drivers/gpio/gpio-mmio.c @@ -533,13 +533,6 @@ static int bgpio_setup_direction(struct gpio_chip *gc, gc->direction_output = bgpio_dir_out; gc->direction_input = bgpio_dir_in; gc->get_direction = bgpio_get_dir; - /* - * If only dirin is available, this means we need - * inverted semantics when handling get/set registers - * so detect this here. - */ - if (dirin && !dirout) - gc->bgpio_dir_inverted = true; } else { if (flags & BGPIOF_NO_OUTPUT) gc->direction_output = bgpio_dir_out_err; diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 95a51794c24a..4d69d458cf9f 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -229,9 +229,6 @@ struct gpio_irq_chip { * @reg_clr: output clear register (out=low) for generic GPIO * @reg_dir_out: direction out setting register for generic GPIO * @reg_dir_in: direction in setting register for generic GPIO - * @bgpio_dir_inverted: indicates that the direction register is inverted - * (gpiolib private state variable) this means @reg_dir_in is - * available but not @reg_dir_out. * @bgpio_dir_unreadable: indicates that the direction register(s) cannot * be read and we need to rely on out internal state tracking. * @bgpio_bits: number of register bits used for a generic GPIO i.e. @@ -305,7 +302,6 @@ struct gpio_chip { void __iomem *reg_clr; void __iomem *reg_dir_out; void __iomem *reg_dir_in; - bool bgpio_dir_inverted; bool bgpio_dir_unreadable; int bgpio_bits; spinlock_t bgpio_lock;
The direction inversion semantics are now handled by simply using the registers for in/out available, no need to keep track of inversion semantics exmplicitly anymore. Cc: Jan Kotas <jank@cadence.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- drivers/gpio/gpio-mmio.c | 7 ------- include/linux/gpio/driver.h | 4 ---- 2 files changed, 11 deletions(-)