Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC late fixes and dependencies from Kevin Hilman:
 "This is a collection of a few late fixes and other misc stuff that had
  dependencies on things being merged from other trees.

  Other than the fixes, the primary feature being added is the
  conversion of some OMAP drivers to the new generic wakeirq interface"

* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: multi_v7_defconfig: Enable BRCMNAND driver
  ARM: BCM: Do not select CONFIG_MTD_NAND_BRCMNAND
  ARM: at91/dt: update udc compatible strings
  ARM: at91/dt: trivial: fix USB udc compatible string
  arm64: dts: Add APM X-Gene standby GPIO controller DTS entries
  soc: qcom: spm: Fix idle on THUMB2 kernels
  ARM: dove: fix legacy dove IRQ numbers
  ARM: mvebu: fix suspend to RAM on big-endian configurations
  ARM: mvebu: adjust Armada XP DT spi muxing after pinctrl function rename
  serial: 8250_omap: Move wake-up interrupt to generic wakeirq
  serial: omap: Switch wake-up interrupt to generic wakeirq
  mmc: omap_hsmmc: Change wake-up interrupt to use generic wakeirq

4 files changed, 15 insertions, 129 deletions

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 9df2b6801f76..b2b411da297b 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -43,6 +43,7 @@
 #include <linux/regulator/consumer.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/pm_runtime.h>
+#include <linux/pm_wakeirq.h>
 #include <linux/platform_data/hsmmc-omap.h>
 
 /* OMAP HSMMC Host Controller Registers */
@@ -218,7 +219,6 @@ struct omap_hsmmc_host {
 	unsigned int		flags;
 #define AUTO_CMD23		(1 << 0)        /* Auto CMD23 support */
 #define HSMMC_SDIO_IRQ_ENABLED	(1 << 1)        /* SDIO irq enabled */
-#define HSMMC_WAKE_IRQ_ENABLED	(1 << 2)
 	struct omap_hsmmc_next	next_data;
 	struct	omap_hsmmc_platform_data	*pdata;
 
@@ -1117,22 +1117,6 @@ static irqreturn_t omap_hsmmc_irq(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t omap_hsmmc_wake_irq(int irq, void *dev_id)
-{
-	struct omap_hsmmc_host *host = dev_id;
-
-	/* cirq is level triggered, disable to avoid infinite loop */
-	spin_lock(&host->irq_lock);
-	if (host->flags & HSMMC_WAKE_IRQ_ENABLED) {
-		disable_irq_nosync(host->wake_irq);
-		host->flags &= ~HSMMC_WAKE_IRQ_ENABLED;
-	}
-	spin_unlock(&host->irq_lock);
-	pm_request_resume(host->dev); /* no use counter */
-
-	return IRQ_HANDLED;
-}
-
 static void set_sd_bus_power(struct omap_hsmmc_host *host)
 {
 	unsigned long i;
@@ -1665,7 +1649,6 @@ static void omap_hsmmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
 
 static int omap_hsmmc_configure_wake_irq(struct omap_hsmmc_host *host)
 {
-	struct mmc_host *mmc = host->mmc;
 	int ret;
 
 	/*
@@ -1677,11 +1660,7 @@ static int omap_hsmmc_configure_wake_irq(struct omap_hsmmc_host *host)
 	if (!host->dev->of_node || !host->wake_irq)
 		return -ENODEV;
 
-	/* Prevent auto-enabling of IRQ */
-	irq_set_status_flags(host->wake_irq, IRQ_NOAUTOEN);
-	ret = devm_request_irq(host->dev, host->wake_irq, omap_hsmmc_wake_irq,
-			       IRQF_TRIGGER_LOW | IRQF_ONESHOT,
-			       mmc_hostname(mmc), host);
+	ret = dev_pm_set_dedicated_wake_irq(host->dev, host->wake_irq);
 	if (ret) {
 		dev_err(mmc_dev(host->mmc), "Unable to request wake IRQ\n");
 		goto err;
@@ -1718,7 +1697,7 @@ static int omap_hsmmc_configure_wake_irq(struct omap_hsmmc_host *host)
 	return 0;
 
 err_free_irq:
-	devm_free_irq(host->dev, host->wake_irq, host);
+	dev_pm_clear_wake_irq(host->dev);
 err:
 	dev_warn(host->dev, "no SDIO IRQ support, falling back to polling\n");
 	host->wake_irq = 0;
@@ -2007,6 +1986,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 		omap_hsmmc_ops.multi_io_quirk = omap_hsmmc_multi_io_quirk;
 	}
 
+	device_init_wakeup(&pdev->dev, true);
 	pm_runtime_enable(host->dev);
 	pm_runtime_get_sync(host->dev);
 	pm_runtime_set_autosuspend_delay(host->dev, MMC_AUTOSUSPEND_DELAY);
@@ -2147,6 +2127,7 @@ err_slot_name:
 	if (host->use_reg)
 		omap_hsmmc_reg_put(host);
 err_irq:
+	device_init_wakeup(&pdev->dev, false);
 	if (host->tx_chan)
 		dma_release_channel(host->tx_chan);
 	if (host->rx_chan)
@@ -2178,6 +2159,7 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
 
 	pm_runtime_put_sync(host->dev);
 	pm_runtime_disable(host->dev);
+	device_init_wakeup(&pdev->dev, false);
 	if (host->dbclk)
 		clk_disable_unprepare(host->dbclk);
 
@@ -2204,11 +2186,6 @@ static int omap_hsmmc_suspend(struct device *dev)
 				OMAP_HSMMC_READ(host->base, HCTL) & ~SDBP);
 	}
 
-	/* do not wake up due to sdio irq */
-	if ((host->mmc->caps & MMC_CAP_SDIO_IRQ) &&
-	    !(host->mmc->pm_flags & MMC_PM_WAKE_SDIO_IRQ))
-		disable_irq(host->wake_irq);
-
 	if (host->dbclk)
 		clk_disable_unprepare(host->dbclk);
 
@@ -2233,11 +2210,6 @@ static int omap_hsmmc_resume(struct device *dev)
 		omap_hsmmc_conf_bus_power(host);
 
 	omap_hsmmc_protect_card(host);
-
-	if ((host->mmc->caps & MMC_CAP_SDIO_IRQ) &&
-	    !(host->mmc->pm_flags & MMC_PM_WAKE_SDIO_IRQ))
-		enable_irq(host->wake_irq);
-
 	pm_runtime_mark_last_busy(host->dev);
 	pm_runtime_put_autosuspend(host->dev);
 	return 0;
@@ -2277,10 +2249,6 @@ static int omap_hsmmc_runtime_suspend(struct device *dev)
 		}
 
 		pinctrl_pm_select_idle_state(dev);
-
-		WARN_ON(host->flags & HSMMC_WAKE_IRQ_ENABLED);
-		enable_irq(host->wake_irq);
-		host->flags |= HSMMC_WAKE_IRQ_ENABLED;
 	} else {
 		pinctrl_pm_select_idle_state(dev);
 	}
@@ -2302,11 +2270,6 @@ static int omap_hsmmc_runtime_resume(struct device *dev)
 	spin_lock_irqsave(&host->irq_lock, flags);
 	if ((host->mmc->caps & MMC_CAP_SDIO_IRQ) &&
 	    (host->flags & HSMMC_SDIO_IRQ_ENABLED)) {
-		/* sdio irq flag can't change while in runtime suspend */
-		if (host->flags & HSMMC_WAKE_IRQ_ENABLED) {
-			disable_irq_nosync(host->wake_irq);
-			host->flags &= ~HSMMC_WAKE_IRQ_ENABLED;
-		}
 
 		pinctrl_pm_select_default_state(host->dev);
 
diff --git a/drivers/soc/qcom/spm.c b/drivers/soc/qcom/spm.c
index b562af816c0a..b04b05a0904e 100644
--- a/drivers/soc/qcom/spm.c
+++ b/drivers/soc/qcom/spm.c
@@ -260,7 +260,7 @@ static int __init qcom_cpuidle_init(struct device_node *cpu_node, int cpu)
 		/* We have atleast one power down mode */
 		cpumask_clear(&mask);
 		cpumask_set_cpu(cpu, &mask);
-		qcom_scm_set_warm_boot_addr(cpu_resume, &mask);
+		qcom_scm_set_warm_boot_addr(cpu_resume_arm, &mask);
 	}
 
 	per_cpu(qcom_idle_ops, cpu) = fns;
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
index 978204333c94..d75a66c72750 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -22,6 +22,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/console.h>
 #include <linux/pm_qos.h>
+#include <linux/pm_wakeirq.h>
 #include <linux/dma-mapping.h>
 
 #include "8250.h"
@@ -552,17 +553,6 @@ static void omap8250_uart_qos_work(struct work_struct *work)
 	pm_qos_update_request(&priv->pm_qos_request, priv->latency);
 }
 
-static irqreturn_t omap_wake_irq(int irq, void *dev_id)
-{
-	struct uart_port *port = dev_id;
-	int ret;
-
-	ret = port->handle_irq(port);
-	if (ret)
-		return IRQ_HANDLED;
-	return IRQ_NONE;
-}
-
 #ifdef CONFIG_SERIAL_8250_DMA
 static int omap_8250_dma_handle_irq(struct uart_port *port);
 #endif
@@ -596,11 +586,9 @@ static int omap_8250_startup(struct uart_port *port)
 	int ret;
 
 	if (priv->wakeirq) {
-		ret = request_irq(priv->wakeirq, omap_wake_irq,
-				  port->irqflags, "uart wakeup irq", port);
+		ret = dev_pm_set_dedicated_wake_irq(port->dev, priv->wakeirq);
 		if (ret)
 			return ret;
-		disable_irq(priv->wakeirq);
 	}
 
 	pm_runtime_get_sync(port->dev);
@@ -649,8 +637,7 @@ static int omap_8250_startup(struct uart_port *port)
 err:
 	pm_runtime_mark_last_busy(port->dev);
 	pm_runtime_put_autosuspend(port->dev);
-	if (priv->wakeirq)
-		free_irq(priv->wakeirq, port);
+	dev_pm_clear_wake_irq(port->dev);
 	return ret;
 }
 
@@ -682,10 +669,8 @@ static void omap_8250_shutdown(struct uart_port *port)
 
 	pm_runtime_mark_last_busy(port->dev);
 	pm_runtime_put_autosuspend(port->dev);
-
 	free_irq(port->irq, port);
-	if (priv->wakeirq)
-		free_irq(priv->wakeirq, port);
+	dev_pm_clear_wake_irq(port->dev);
 }
 
 static void omap_8250_throttle(struct uart_port *port)
@@ -1226,31 +1211,6 @@ static int omap8250_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-
-static inline void omap8250_enable_wakeirq(struct omap8250_priv *priv,
-					   bool enable)
-{
-	if (!priv->wakeirq)
-		return;
-
-	if (enable)
-		enable_irq(priv->wakeirq);
-	else
-		disable_irq_nosync(priv->wakeirq);
-}
-
-static void omap8250_enable_wakeup(struct omap8250_priv *priv,
-				   bool enable)
-{
-	if (enable == priv->wakeups_enabled)
-		return;
-
-	omap8250_enable_wakeirq(priv, enable);
-	priv->wakeups_enabled = enable;
-}
-#endif
-
 #ifdef CONFIG_PM_SLEEP
 static int omap8250_prepare(struct device *dev)
 {
@@ -1277,11 +1237,6 @@ static int omap8250_suspend(struct device *dev)
 
 	serial8250_suspend_port(priv->line);
 	flush_work(&priv->qos_work);
-
-	if (device_may_wakeup(dev))
-		omap8250_enable_wakeup(priv, true);
-	else
-		omap8250_enable_wakeup(priv, false);
 	return 0;
 }
 
@@ -1289,9 +1244,6 @@ static int omap8250_resume(struct device *dev)
 {
 	struct omap8250_priv *priv = dev_get_drvdata(dev);
 
-	if (device_may_wakeup(dev))
-		omap8250_enable_wakeup(priv, false);
-
 	serial8250_resume_port(priv->line);
 	return 0;
 }
@@ -1333,7 +1285,6 @@ static int omap8250_runtime_suspend(struct device *dev)
 			return -EBUSY;
 	}
 
-	omap8250_enable_wakeup(priv, true);
 	if (up->dma)
 		omap_8250_rx_dma(up, UART_IIR_RX_TIMEOUT);
 
@@ -1354,7 +1305,6 @@ static int omap8250_runtime_resume(struct device *dev)
 		return 0;
 
 	up = serial8250_get_port(priv->line);
-	omap8250_enable_wakeup(priv, false);
 	loss_cntx = omap8250_lost_context(up);
 
 	if (loss_cntx)
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 7f49172ccd86..7a2172b5e93c 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -38,6 +38,7 @@
 #include <linux/serial_core.h>
 #include <linux/irq.h>
 #include <linux/pm_runtime.h>
+#include <linux/pm_wakeirq.h>
 #include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/gpio.h>
@@ -160,7 +161,6 @@ struct uart_omap_port {
 	unsigned long		port_activity;
 	int			context_loss_cnt;
 	u32			errata;
-	u8			wakeups_enabled;
 	u32			features;
 
 	int			rts_gpio;
@@ -209,28 +209,11 @@ static int serial_omap_get_context_loss_count(struct uart_omap_port *up)
 	return pdata->get_context_loss_count(up->dev);
 }
 
-static inline void serial_omap_enable_wakeirq(struct uart_omap_port *up,
-				       bool enable)
-{
-	if (!up->wakeirq)
-		return;
-
-	if (enable)
-		enable_irq(up->wakeirq);
-	else
-		disable_irq_nosync(up->wakeirq);
-}
-
+/* REVISIT: Remove this when omap3 boots in device tree only mode */
 static void serial_omap_enable_wakeup(struct uart_omap_port *up, bool enable)
 {
 	struct omap_uart_port_info *pdata = dev_get_platdata(up->dev);
 
-	if (enable == up->wakeups_enabled)
-		return;
-
-	serial_omap_enable_wakeirq(up, enable);
-	up->wakeups_enabled = enable;
-
 	if (!pdata || !pdata->enable_wakeup)
 		return;
 
@@ -750,13 +733,11 @@ static int serial_omap_startup(struct uart_port *port)
 
 	/* Optional wake-up IRQ */
 	if (up->wakeirq) {
-		retval = request_irq(up->wakeirq, serial_omap_irq,
-				     up->port.irqflags, up->name, up);
+		retval = dev_pm_set_dedicated_wake_irq(up->dev, up->wakeirq);
 		if (retval) {
 			free_irq(up->port.irq, up);
 			return retval;
 		}
-		disable_irq(up->wakeirq);
 	}
 
 	dev_dbg(up->port.dev, "serial_omap_startup+%d\n", up->port.line);
@@ -845,8 +826,7 @@ static void serial_omap_shutdown(struct uart_port *port)
 	pm_runtime_mark_last_busy(up->dev);
 	pm_runtime_put_autosuspend(up->dev);
 	free_irq(up->port.irq, up);
-	if (up->wakeirq)
-		free_irq(up->wakeirq, up);
+	dev_pm_clear_wake_irq(up->dev);
 }
 
 static void serial_omap_uart_qos_work(struct work_struct *work)
@@ -1139,13 +1119,6 @@ serial_omap_pm(struct uart_port *port, unsigned int state,
 	serial_out(up, UART_EFR, efr);
 	serial_out(up, UART_LCR, 0);
 
-	if (!device_may_wakeup(up->dev)) {
-		if (!state)
-			pm_runtime_forbid(up->dev);
-		else
-			pm_runtime_allow(up->dev);
-	}
-
 	pm_runtime_mark_last_busy(up->dev);
 	pm_runtime_put_autosuspend(up->dev);
 }