x86: add MAP_STACK mmap flag

[linux-2.6] / drivers / mfd / asic3.c

diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index 80dc3334e82f73c5727ed388176c58764e63088a..c6408a62d95e3ab791bb3a303ba717ec1563b591 100644 (file)
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -137,7 +137,7 @@ static void asic3_irq_demux(unsigned int irq, struct irq_desc *desc)
                for (i = ASIC3_NUM_GPIOS; i < ASIC3_NR_IRQS; i++) {
                        /* They start at bit 4 and go up */
                        if (status & (1 << (i - ASIC3_NUM_GPIOS + 4))) {
-                               desc = irq_desc +  + i;
+                               desc = irq_desc + asic->irq_base + i;
                                desc->handle_irq(asic->irq_base + i,
                                                 desc);
                        }
@@ -256,28 +256,28 @@ static int asic3_gpio_irq_type(unsigned int irq, unsigned int type)
                                      bank + ASIC3_GPIO_TRIGGER_TYPE);
        asic->irq_bothedge[(irq - asic->irq_base) >> 4] &= ~bit;
 
-       if (type == IRQT_RISING) {
+       if (type == IRQ_TYPE_EDGE_RISING) {
                trigger |= bit;
                edge |= bit;
-       } else if (type == IRQT_FALLING) {
+       } else if (type == IRQ_TYPE_EDGE_FALLING) {
                trigger |= bit;
                edge &= ~bit;
-       } else if (type == IRQT_BOTHEDGE) {
+       } else if (type == IRQ_TYPE_EDGE_BOTH) {
                trigger |= bit;
                if (asic3_gpio_get(&asic->gpio, irq - asic->irq_base))
                        edge &= ~bit;
                else
                        edge |= bit;
                asic->irq_bothedge[(irq - asic->irq_base) >> 4] |= bit;
-       } else if (type == IRQT_LOW) {
+       } else if (type == IRQ_TYPE_LEVEL_LOW) {
                trigger &= ~bit;
                level &= ~bit;
-       } else if (type == IRQT_HIGH) {
+       } else if (type == IRQ_TYPE_LEVEL_HIGH) {
                trigger &= ~bit;
                level |= bit;
        } else {
                /*
-                * if type == IRQT_NOEDGE, we should mask interrupts, but
+                * if type == IRQ_TYPE_NONE, we should mask interrupts, but
                 * be careful to not unmask them if mask was also called.
                 * Probably need internal state for mask.
                 */
@@ -313,10 +313,13 @@ static int __init asic3_irq_probe(struct platform_device *pdev)
        struct asic3 *asic = platform_get_drvdata(pdev);
        unsigned long clksel = 0;
        unsigned int irq, irq_base;
+       int map_size;
+       int ret;
 
-       asic->irq_nr = platform_get_irq(pdev, 0);
-       if (asic->irq_nr < 0)
-               return asic->irq_nr;
+       ret = platform_get_irq(pdev, 0);
+       if (ret < 0)
+               return ret;
+       asic->irq_nr = ret;
 
        /* turn on clock to IRQ controller */
        clksel |= CLOCK_SEL_CX;
@@ -340,7 +343,7 @@ static int __init asic3_irq_probe(struct platform_device *pdev)
                             ASIC3_INTMASK_GINTMASK);
 
        set_irq_chained_handler(asic->irq_nr, asic3_irq_demux);
-       set_irq_type(asic->irq_nr, IRQT_RISING);
+       set_irq_type(asic->irq_nr, IRQ_TYPE_EDGE_RISING);
        set_irq_data(asic->irq_nr, asic);
 
        return 0;
@@ -473,9 +476,9 @@ static __init int asic3_gpio_probe(struct platform_device *pdev,
        u16 dir_reg[ASIC3_NUM_GPIO_BANKS];
        int i;
 
-       memset(alt_reg, 0, ASIC3_NUM_GPIO_BANKS);
-       memset(out_reg, 0, ASIC3_NUM_GPIO_BANKS);
-       memset(dir_reg, 0, ASIC3_NUM_GPIO_BANKS);
+       memzero(alt_reg, ASIC3_NUM_GPIO_BANKS * sizeof(u16));
+       memzero(out_reg, ASIC3_NUM_GPIO_BANKS * sizeof(u16));
+       memzero(dir_reg, ASIC3_NUM_GPIO_BANKS * sizeof(u16));
 
        /* Enable all GPIOs */
        asic3_write_register(asic, ASIC3_GPIO_OFFSET(A, MASK), 0xffff);
@@ -551,8 +554,8 @@ static int __init asic3_probe(struct platform_device *pdev)
                goto out_free;
        }
 
-
-       asic->mapping = ioremap(mem->start, PAGE_SIZE);
+       map_size = mem->end - mem->start + 1;
+       asic->mapping = ioremap(mem->start, map_size);
        if (!asic->mapping) {
                ret = -ENOMEM;
                dev_err(asic->dev, "Couldn't ioremap\n");
@@ -561,10 +564,8 @@ static int __init asic3_probe(struct platform_device *pdev)
 
        asic->irq_base = pdata->irq_base;
 
-       if (pdata && pdata->bus_shift)
-               asic->bus_shift = 2 - pdata->bus_shift;
-       else
-               asic->bus_shift = 0;
+       /* calculate bus shift from mem resource */
+       asic->bus_shift = 2 - (map_size >> 12);
 
        clksel = 0;
        asic3_write_register(asic, ASIC3_OFFSET(CLOCK, SEL), clksel);