diff options
| author | Grygorii Strashko <grygorii.strashko@ti.com> | 2018-09-28 16:39:50 -0500 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2018-10-01 12:28:57 +0200 |
| commit | 467480738d0b33335032652b29776d82200db41a (patch) | |
| tree | fa822dde9568646d0c2f0ac46f224539d6134148 /drivers/gpio | |
| parent | 8898240aaace9eb315b3e9c43bc132da6e62a953 (diff) | |
| download | linux-467480738d0b33335032652b29776d82200db41a.tar.bz2 | |
gpio: omap: get rid of the conditional PM runtime calls
OMAP GPIO driver is checking !BANK_USED() used condition before calling PM
runtime API, because of PM runtime calls in
omap2_gpio_prepare/resume_for_idle(). It's not required any more since
"omap gpio add level idle, cpu_pm and drop runtime_irq_safe" series [1]
from Tony Lindgren was accepted and PM runtime management was enabled in
IRQ chip core by commit be45beb2df69 ("genirq: Add runtime power management
support for IRQ chips") .
As result safely drop !BANK_USED() checks from omap_gpio_request/free(),
omap_gpio_irq_bus_lock/unlock() and enable PM runtime management for OMAP
GPIO IRQ chip.
[1] https://www.spinics.net/lists/arm-kernel/msg677583.html
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-omap.c | 25 |
1 files changed, 5 insertions, 20 deletions
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index c0d7ae766de4..cab14f2297aa 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -704,12 +704,7 @@ static int omap_gpio_request(struct gpio_chip *chip, unsigned offset) struct gpio_bank *bank = gpiochip_get_data(chip); unsigned long flags; - /* - * If this is the first gpio_request for the bank, - * enable the bank module. - */ - if (!BANK_USED(bank)) - pm_runtime_get_sync(chip->parent); + pm_runtime_get_sync(chip->parent); raw_spin_lock_irqsave(&bank->lock, flags); omap_enable_gpio_module(bank, offset); @@ -733,12 +728,7 @@ static void omap_gpio_free(struct gpio_chip *chip, unsigned offset) omap_disable_gpio_module(bank, offset); raw_spin_unlock_irqrestore(&bank->lock, flags); - /* - * If this is the last gpio to be freed in the bank, - * disable the bank module. - */ - if (!BANK_USED(bank)) - pm_runtime_put(chip->parent); + pm_runtime_put(chip->parent); } /* @@ -864,20 +854,14 @@ static void omap_gpio_irq_bus_lock(struct irq_data *data) { struct gpio_bank *bank = omap_irq_data_get_bank(data); - if (!BANK_USED(bank)) - pm_runtime_get_sync(bank->chip.parent); + pm_runtime_get_sync(bank->chip.parent); } static void gpio_irq_bus_sync_unlock(struct irq_data *data) { struct gpio_bank *bank = omap_irq_data_get_bank(data); - /* - * If this is the last IRQ to be freed in the bank, - * disable the bank module. - */ - if (!BANK_USED(bank)) - pm_runtime_put(bank->chip.parent); + pm_runtime_put(bank->chip.parent); } static void omap_gpio_ack_irq(struct irq_data *d) @@ -1387,6 +1371,7 @@ static int omap_gpio_probe(struct platform_device *pdev) irqc->irq_bus_sync_unlock = gpio_irq_bus_sync_unlock, irqc->name = dev_name(&pdev->dev); irqc->flags = IRQCHIP_MASK_ON_SUSPEND; + irqc->parent_device = dev; bank->irq = platform_get_irq(pdev, 0); if (bank->irq <= 0) { |