diff --git a/drivers/spi/spi-pxa2xx-pci.c b/drivers/spi/spi-pxa2xx-pci.c
index 869f188b02eb..55b953c64556 100644
--- a/drivers/spi/spi-pxa2xx-pci.c
+++ b/drivers/spi/spi-pxa2xx-pci.c
@@ -259,6 +259,9 @@ static int pxa2xx_spi_pci_probe(struct pci_dev *dev,
 
 	pci_set_drvdata(dev, pdev);
 
+	pr_info("pxa2xx-pci dev '%s' (%u): probed\n",
+		__clk_get_name(ssp->clk), ssp->irq);
+
 	return 0;
 }
 
@@ -269,6 +272,9 @@ static void pxa2xx_spi_pci_remove(struct pci_dev *dev)
 
 	spi_pdata = dev_get_platdata(&pdev->dev);
 
+	pr_info("pxa2xx-pci dev '%s' (%u): removing\n",
+		__clk_get_name(spi_pdata->ssp.clk), spi_pdata->ssp.irq);
+
 	platform_device_unregister(pdev);
 	clk_unregister(spi_pdata->ssp.clk);
 }
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 612cc49db28f..e2ec0b7bf765 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -34,6 +34,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/acpi.h>
 #include <linux/of_device.h>
+#include <linux/clk-provider.h>
 
 #include "spi-pxa2xx.h"
 
@@ -706,6 +707,7 @@ static irqreturn_t ssp_int(int irq, void *dev_id)
 	u32 sccr1_reg;
 	u32 mask = drv_data->mask_sr;
 	u32 status;
+	irqreturn_t ret;
 
 	/*
 	 * The IRQ might be shared with other peripherals so we must first
@@ -713,6 +715,10 @@ static irqreturn_t ssp_int(int irq, void *dev_id)
 	 * the IRQ was not for us (we shouldn't be RPM suspended when the
 	 * interrupt is enabled).
 	 */
+	if (pm_runtime_suspended(&drv_data->pdev->dev))
+		pr_info("pxa2xx dev '%s' (%u): suspended, not handling irq %u\n",
+			__clk_get_name(drv_data->ssp->clk), drv_data->ssp->irq,
+			irq);
 	if (pm_runtime_suspended(&drv_data->pdev->dev))
 		return IRQ_NONE;
 
@@ -723,6 +729,10 @@ static irqreturn_t ssp_int(int irq, void *dev_id)
 	 * powered off.
 	 */
 	status = pxa2xx_spi_read(drv_data, SSSR);
+	if (status == ~0)
+		pr_info("pxa2xx dev '%s' (%u): status ~0, not handling irq %u\n",
+			__clk_get_name(drv_data->ssp->clk), drv_data->ssp->irq,
+			irq);
 	if (status == ~0)
 		return IRQ_NONE;
 
@@ -736,6 +746,10 @@ static irqreturn_t ssp_int(int irq, void *dev_id)
 	if (!(sccr1_reg & SSCR1_TINTE))
 		mask &= ~SSSR_TINT;
 
+	if (!(status & mask))
+		pr_info("pxa2xx dev '%s' (%u): status/mask %u/%u, not handling irq %u\n",
+			__clk_get_name(drv_data->ssp->clk), drv_data->ssp->irq,
+			status, mask, irq);
 	if (!(status & mask))
 		return IRQ_NONE;
 
@@ -743,12 +757,21 @@ static irqreturn_t ssp_int(int irq, void *dev_id)
 	pxa2xx_spi_write(drv_data, SSCR1, sccr1_reg);
 
 	if (!drv_data->master->cur_msg) {
+		pr_info("pxa2xx dev '%s' (%u): bad message state, handled irq %u\n",
+			__clk_get_name(drv_data->ssp->clk), drv_data->ssp->irq,
+			irq);
 		handle_bad_msg(drv_data);
 		/* Never fail */
 		return IRQ_HANDLED;
 	}
 
-	return drv_data->transfer_handler(drv_data);
+	ret = drv_data->transfer_handler(drv_data);
+	pr_info("pxa2xx dev '%s' (%u): transfer-handler '%s' status for irq %u is %d\n",
+		__clk_get_name(drv_data->ssp->clk), drv_data->ssp->irq,
+		drv_data->transfer_handler == interrupt_transfer ?
+			"interrupt_transfer" : "pxa2xx_spi_dma_transfer",
+		irq, ret);
+	return ret;
 }
 
 /*
@@ -1503,6 +1526,9 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 	pdata->num_chipselect = 1;
 	pdata->enable_dma = true;
 
+	pr_info("pxa2xx dev '%s' (%u): got irq from platform\n",
+		__clk_get_name(ssp->clk), ssp->irq);
+
 	return pdata;
 }
 
@@ -1619,6 +1645,8 @@ static int pxa2xx_spi_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "cannot get IRQ %d\n", ssp->irq);
 		goto out_error_master_alloc;
 	}
+	pr_info("pxa2xx dev '%s' (%u): configured irq\n",
+		__clk_get_name(ssp->clk), ssp->irq);
 
 	/* Setup DMA if requested */
 	if (platform_info->enable_dma) {
@@ -1760,6 +1788,9 @@ static int pxa2xx_spi_remove(struct platform_device *pdev)
 
 	pm_runtime_get_sync(&pdev->dev);
 
+	pr_info("pxa2xx dev '%s' (%u): removing\n",
+		__clk_get_name(ssp->clk), ssp->irq);
+
 	/* Disable the SSP at the peripheral and SOC level */
 	pxa2xx_spi_write(drv_data, SSCR0, 0);
 	clk_disable_unprepare(ssp->clk);
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index d867d6ddafdd..7fad68f41901 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -131,8 +131,11 @@ static int misrouted_irq(int irq)
 		if (i == irq)	/* Already tried */
 			continue;
 
-		if (try_one_irq(desc, false))
+		if (try_one_irq(desc, false)) {
 			ok = 1;
+			printk(KERN_INFO "misrouted irq %u handled by '%s'\n",
+			       desc->irq_data.irq, desc->irq_data.chip->name);
+		}
 	}
 out:
 	atomic_dec(&irq_poll_active);