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gpio: omap: clean up wakeup handling 

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Russell King 2019-06-10 20:11:01 +03:00 committed by Linus Walleij
parent 18bd49c4c7
commit 40fd422a7d
1 changed files with 13 additions and 23 deletions
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36
drivers/gpio/gpio-omap.c
View File

@ -305,12 +305,6 @@ static inline void omap_set_gpio_trigger(struct gpio_bank *bank, int gpio,
bank->level_mask = bank->context.leveldetect0 |
bank->context.leveldetect1;
if (likely(!(bank->non_wakeup_gpios & gpio_bit))) {
omap_gpio_rmw(base + bank->regs->wkup_en, gpio_bit, trigger != 0);
bank->context.wake_en =
readl_relaxed(bank->base + bank->regs->wkup_en);
}
/* This part needs to be executed always for OMAP{34xx, 44xx} */
if (!bank->regs->irqctrl && !omap_gpio_is_off_wakeup_capable(bank, gpio)) {
/*
@ -343,7 +337,6 @@ static int omap_set_gpio_triggering(struct gpio_bank *bank, int gpio,
unsigned trigger)
{
void __iomem *reg = bank->base;
void __iomem *base = bank->base;
u32 l = 0;
if (bank->regs->leveldetect0 && bank->regs->wkup_en) {
@ -375,11 +368,6 @@ static int omap_set_gpio_triggering(struct gpio_bank *bank, int gpio,
l |= 2 << (gpio << 1);
if (trigger & IRQ_TYPE_EDGE_FALLING)
l |= BIT(gpio << 1);
/* Enable wake-up during idle for dynamic tick */
omap_gpio_rmw(base + bank->regs->wkup_en, BIT(gpio), trigger);
bank->context.wake_en =
readl_relaxed(bank->base + bank->regs->wkup_en);
writel_relaxed(l, reg);
}
return 0;
@ -408,17 +396,6 @@ static void omap_enable_gpio_module(struct gpio_bank *bank, unsigned offset)
static void omap_disable_gpio_module(struct gpio_bank *bank, unsigned offset)
{
void __iomem *base = bank->base;
if (bank->regs->wkup_en &&
!LINE_USED(bank->mod_usage, offset) &&
!LINE_USED(bank->irq_usage, offset)) {
/* Disable wake-up during idle for dynamic tick */
omap_gpio_rmw(base + bank->regs->wkup_en, BIT(offset), 0);
bank->context.wake_en =
readl_relaxed(bank->base + bank->regs->wkup_en);
}
if (bank->regs->ctrl && !BANK_USED(bank)) {
void __iomem *reg = bank->base + bank->regs->ctrl;
u32 ctrl;
@ -549,6 +526,19 @@ static inline void omap_set_gpio_irqenable(struct gpio_bank *bank,
omap_gpio_rmw(reg + bank->regs->irqenable, gpio_mask,
enable ^ bank->regs->irqenable_inv);
}
/*
* Program GPIO wakeup along with IRQ enable to satisfy OMAP4430 TRM
* note requiring correlation between the IRQ enable registers and
* the wakeup registers. In any case, we want wakeup from idle
* enabled for the GPIOs which support this feature.
*/
if (bank->regs->wkup_en &&
(bank->regs->edgectrl1 || !(bank->non_wakeup_gpios & gpio_mask))) {
bank->context.wake_en =
omap_gpio_rmw(bank->base + bank->regs->wkup_en,
gpio_mask, enable);
}
}
/* Use disable_irq_wake() and enable_irq_wake() functions from drivers */