[PATCH 3/3] gpio: omap: Get rid of pm_runtime_irq_safe()

Tony Lindgren tony at atomide.com
Thu Sep 20 12:35:32 PDT 2018


If a gpio instance has any GPIO bits requested we do a pm_runtime_get()
on the device. Now with cpu_pm handling the deeper SoC idle state quirks,
let's just remove pm_runtime_irq_safe() call and add a warning in case we
ever happen to encounter it.

Cc: Aaro Koskinen <aaro.koskinen at iki.fi>
Cc: Grygorii Strashko <grygorii.strashko at ti.com>
Cc: Keerthy <j-keerthy at ti.com>
Cc: Ladislav Michl <ladis at linux-mips.org>
Cc: Tero Kristo <t-kristo at ti.com>
Signed-off-by: Tony Lindgren <tony at atomide.com>
---
 drivers/gpio/gpio-omap.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -763,7 +763,9 @@ static irqreturn_t omap_gpio_irq_handler(int irq, void *gpiobank)
 	if (WARN_ON(!isr_reg))
 		goto exit;
 
-	pm_runtime_get_sync(bank->chip.parent);
+	if (WARN_ONCE(!pm_runtime_active(bank->chip.parent),
+		      "gpio irq%i while runtime suspended?\n", irq))
+		return IRQ_NONE;
 
 	while (1) {
 		raw_spin_lock_irqsave(&bank->lock, lock_flags);
@@ -814,7 +816,6 @@ static irqreturn_t omap_gpio_irq_handler(int irq, void *gpiobank)
 		}
 	}
 exit:
-	pm_runtime_put(bank->chip.parent);
 	return IRQ_HANDLED;
 }
 
@@ -1466,7 +1467,6 @@ static int omap_gpio_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, bank);
 
 	pm_runtime_enable(dev);
-	pm_runtime_irq_safe(dev);
 	pm_runtime_get_sync(dev);
 
 	if (bank->is_mpuio)
-- 
2.19.0



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