These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 75 insertions, 9 deletions

diff --git a/kernel/drivers/mfd/mt6397-core.c b/kernel/drivers/mfd/mt6397-core.c
index 09bc78049..1749c1c9f 100644
--- a/kernel/drivers/mfd/mt6397-core.c
+++ b/kernel/drivers/mfd/mt6397-core.c
@@ -21,9 +21,27 @@
 #include <linux/mfd/mt6397/core.h>
 #include <linux/mfd/mt6397/registers.h>
 
+#define MT6397_RTC_BASE		0xe000
+#define MT6397_RTC_SIZE		0x3e
+
+static const struct resource mt6397_rtc_resources[] = {
+	{
+		.start = MT6397_RTC_BASE,
+		.end   = MT6397_RTC_BASE + MT6397_RTC_SIZE,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = MT6397_IRQ_RTC,
+		.end   = MT6397_IRQ_RTC,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
 static const struct mfd_cell mt6397_devs[] = {
 	{
 		.name = "mt6397-rtc",
+		.num_resources = ARRAY_SIZE(mt6397_rtc_resources),
+		.resources = mt6397_rtc_resources,
 		.of_compatible = "mediatek,mt6397-rtc",
 	}, {
 		.name = "mt6397-regulator",
@@ -34,19 +52,22 @@ static const struct mfd_cell mt6397_devs[] = {
 	}, {
 		.name = "mt6397-clk",
 		.of_compatible = "mediatek,mt6397-clk",
+	}, {
+		.name = "mt6397-pinctrl",
+		.of_compatible = "mediatek,mt6397-pinctrl",
 	},
 };
 
 static void mt6397_irq_lock(struct irq_data *data)
 {
-	struct mt6397_chip *mt6397 = irq_get_chip_data(data->irq);
+	struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(data);
 
 	mutex_lock(&mt6397->irqlock);
 }
 
 static void mt6397_irq_sync_unlock(struct irq_data *data)
 {
-	struct mt6397_chip *mt6397 = irq_get_chip_data(data->irq);
+	struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(data);
 
 	regmap_write(mt6397->regmap, MT6397_INT_CON0, mt6397->irq_masks_cur[0]);
 	regmap_write(mt6397->regmap, MT6397_INT_CON1, mt6397->irq_masks_cur[1]);
@@ -56,7 +77,7 @@ static void mt6397_irq_sync_unlock(struct irq_data *data)
 
 static void mt6397_irq_disable(struct irq_data *data)
 {
-	struct mt6397_chip *mt6397 = irq_get_chip_data(data->irq);
+	struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(data);
 	int shift = data->hwirq & 0xf;
 	int reg = data->hwirq >> 4;
 
@@ -65,19 +86,38 @@ static void mt6397_irq_disable(struct irq_data *data)
 
 static void mt6397_irq_enable(struct irq_data *data)
 {
-	struct mt6397_chip *mt6397 = irq_get_chip_data(data->irq);
+	struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(data);
 	int shift = data->hwirq & 0xf;
 	int reg = data->hwirq >> 4;
 
 	mt6397->irq_masks_cur[reg] |= BIT(shift);
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int mt6397_irq_set_wake(struct irq_data *irq_data, unsigned int on)
+{
+	struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(irq_data);
+	int shift = irq_data->hwirq & 0xf;
+	int reg = irq_data->hwirq >> 4;
+
+	if (on)
+		mt6397->wake_mask[reg] |= BIT(shift);
+	else
+		mt6397->wake_mask[reg] &= ~BIT(shift);
+
+	return 0;
+}
+#else
+#define mt6397_irq_set_wake NULL
+#endif
+
 static struct irq_chip mt6397_irq_chip = {
 	.name = "mt6397-irq",
 	.irq_bus_lock = mt6397_irq_lock,
 	.irq_bus_sync_unlock = mt6397_irq_sync_unlock,
 	.irq_enable = mt6397_irq_enable,
 	.irq_disable = mt6397_irq_disable,
+	.irq_set_wake = mt6397_irq_set_wake,
 };
 
 static void mt6397_irq_handle_reg(struct mt6397_chip *mt6397, int reg,
@@ -121,16 +161,12 @@ static int mt6397_irq_domain_map(struct irq_domain *d, unsigned int irq,
 	irq_set_chip_data(irq, mt6397);
 	irq_set_chip_and_handler(irq, &mt6397_irq_chip, handle_level_irq);
 	irq_set_nested_thread(irq, 1);
-#ifdef CONFIG_ARM
-	set_irq_flags(irq, IRQF_VALID);
-#else
 	irq_set_noprobe(irq);
-#endif
 
 	return 0;
 }
 
-static struct irq_domain_ops mt6397_irq_domain_ops = {
+static const struct irq_domain_ops mt6397_irq_domain_ops = {
 	.map = mt6397_irq_domain_map,
 };
 
@@ -162,6 +198,35 @@ static int mt6397_irq_init(struct mt6397_chip *mt6397)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int mt6397_irq_suspend(struct device *dev)
+{
+	struct mt6397_chip *chip = dev_get_drvdata(dev);
+
+	regmap_write(chip->regmap, MT6397_INT_CON0, chip->wake_mask[0]);
+	regmap_write(chip->regmap, MT6397_INT_CON1, chip->wake_mask[1]);
+
+	enable_irq_wake(chip->irq);
+
+	return 0;
+}
+
+static int mt6397_irq_resume(struct device *dev)
+{
+	struct mt6397_chip *chip = dev_get_drvdata(dev);
+
+	regmap_write(chip->regmap, MT6397_INT_CON0, chip->irq_masks_cur[0]);
+	regmap_write(chip->regmap, MT6397_INT_CON1, chip->irq_masks_cur[1]);
+
+	disable_irq_wake(chip->irq);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(mt6397_pm_ops, mt6397_irq_suspend,
+			mt6397_irq_resume);
+
 static int mt6397_probe(struct platform_device *pdev)
 {
 	int ret;
@@ -216,6 +281,7 @@ static struct platform_driver mt6397_driver = {
 	.driver = {
 		.name = "mt6397",
 		.of_match_table = of_match_ptr(mt6397_of_match),
+		.pm = &mt6397_pm_ops,
 	},
 };