From: Colin Cross <ccross@google.com>
Date: Wed, 18 Aug 2010 07:19:27 +0000 (-0700)
Subject: [ARM] tegra: gpio: Add support for waking from suspend
X-Git-Tag: firefly_0821_release~9833^2~365
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4c053d2fc9bad23a5b33f83b678be24d3c4f8ef3;p=firefly-linux-kernel-4.4.55.git

[ARM] tegra: gpio: Add support for waking from suspend

Change-Id: If692ff0e7de3d3d5a825a8b1e7989650ef9fb238
Signed-off-by: Colin Cross <ccross@google.com>
---

diff --git a/arch/arm/mach-tegra/gpio.c b/arch/arm/mach-tegra/gpio.c
index 1bf92e581cc6..0187aaa61cd9 100644
--- a/arch/arm/mach-tegra/gpio.c
+++ b/arch/arm/mach-tegra/gpio.c
@@ -212,6 +212,9 @@ static int tegra_gpio_irq_set_type(unsigned int irq, unsigned int type)
 	else if (type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
 		__set_irq_handler_unlocked(irq, handle_edge_irq);
 
+	if (tegra_get_suspend_mode() == TEGRA_SUSPEND_LP0)
+		tegra_set_lp0_wake_type(irq, type);
+
 	return 0;
 }
 
@@ -319,8 +322,17 @@ void tegra_gpio_suspend(void)
 
 static int tegra_gpio_wake_enable(unsigned int irq, unsigned int enable)
 {
+	int ret;
 	struct tegra_gpio_bank *bank = get_irq_chip_data(irq);
-	return set_irq_wake(bank->irq, enable);
+
+	ret = tegra_set_lp1_wake(bank->irq, enable);
+	if (ret)
+		return ret;
+
+	if (tegra_get_suspend_mode() == TEGRA_SUSPEND_LP0)
+		return tegra_set_lp0_wake(irq, enable);
+
+	return 0;
 }
 #endif