Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / arch / arm / plat-nomadik / gpio.c

diff --git a/arch/arm/plat-nomadik/gpio.c b/arch/arm/plat-nomadik/gpio.c
index 85e6fd212a414efa02526762123b0b4d20653d9a..1e88ecb846d14c8fc747a8993baef52f9588c066 100644 (file)
--- a/arch/arm/plat-nomadik/gpio.c
+++ b/arch/arm/plat-nomadik/gpio.c
@@ -119,7 +119,7 @@ static void __nmk_gpio_make_output(struct nmk_gpio_chip *nmk_chip,
 }
 
 static void __nmk_config_pin(struct nmk_gpio_chip *nmk_chip, unsigned offset,
-                            pin_cfg_t cfg)
+                            pin_cfg_t cfg, bool sleep)
 {
        static const char *afnames[] = {
                [NMK_GPIO_ALT_GPIO]     = "GPIO",
@@ -145,11 +145,34 @@ static void __nmk_config_pin(struct nmk_gpio_chip *nmk_chip, unsigned offset,
        int output = PIN_DIR(cfg);
        int val = PIN_VAL(cfg);
 
-       dev_dbg(nmk_chip->chip.dev, "pin %d: af %s, pull %s, slpm %s (%s%s)\n",
-               pin, afnames[af], pullnames[pull], slpmnames[slpm],
+       dev_dbg(nmk_chip->chip.dev, "pin %d [%#lx]: af %s, pull %s, slpm %s (%s%s)\n",
+               pin, cfg, afnames[af], pullnames[pull], slpmnames[slpm],
                output ? "output " : "input",
                output ? (val ? "high" : "low") : "");
 
+       if (sleep) {
+               int slpm_pull = PIN_SLPM_PULL(cfg);
+               int slpm_output = PIN_SLPM_DIR(cfg);
+               int slpm_val = PIN_SLPM_VAL(cfg);
+
+               /*
+                * The SLPM_* values are normal values + 1 to allow zero to
+                * mean "same as normal".
+                */
+               if (slpm_pull)
+                       pull = slpm_pull - 1;
+               if (slpm_output)
+                       output = slpm_output - 1;
+               if (slpm_val)
+                       val = slpm_val - 1;
+
+               dev_dbg(nmk_chip->chip.dev, "pin %d: sleep pull %s, dir %s, val %s\n",
+                       pin,
+                       slpm_pull ? pullnames[pull] : "same",
+                       slpm_output ? (output ? "output" : "input") : "same",
+                       slpm_val ? (val ? "high" : "low") : "same");
+       }
+
        if (output)
                __nmk_gpio_make_output(nmk_chip, offset, val);
        else {
@@ -175,7 +198,7 @@ static void __nmk_config_pin(struct nmk_gpio_chip *nmk_chip, unsigned offset,
  * side-effects.  The gpio can be manipulated later using standard GPIO API
  * calls.
  */
-int nmk_config_pin(pin_cfg_t cfg)
+int nmk_config_pin(pin_cfg_t cfg, bool sleep)
 {
        struct nmk_gpio_chip *nmk_chip;
        int gpio = PIN_NUM(cfg);
@@ -186,7 +209,7 @@ int nmk_config_pin(pin_cfg_t cfg)
                return -EINVAL;
 
        spin_lock_irqsave(&nmk_chip->lock, flags);
-       __nmk_config_pin(nmk_chip, gpio - nmk_chip->chip.base, cfg);
+       __nmk_config_pin(nmk_chip, gpio - nmk_chip->chip.base, cfg, sleep);
        spin_unlock_irqrestore(&nmk_chip->lock, flags);
 
        return 0;
@@ -207,7 +230,7 @@ int nmk_config_pins(pin_cfg_t *cfgs, int num)
        int i;
 
        for (i = 0; i < num; i++) {
-               int ret = nmk_config_pin(cfgs[i]);
+               ret = nmk_config_pin(cfgs[i], false);
                if (ret)
                        break;
        }
@@ -216,6 +239,21 @@ int nmk_config_pins(pin_cfg_t *cfgs, int num)
 }
 EXPORT_SYMBOL(nmk_config_pins);
 
+int nmk_config_pins_sleep(pin_cfg_t *cfgs, int num)
+{
+       int ret = 0;
+       int i;
+
+       for (i = 0; i < num; i++) {
+               ret = nmk_config_pin(cfgs[i], true);
+               if (ret)
+                       break;
+       }
+
+       return ret;
+}
+EXPORT_SYMBOL(nmk_config_pins_sleep);
+
 /**
  * nmk_gpio_set_slpm() - configure the sleep mode of a pin
  * @gpio: pin number
@@ -318,13 +356,13 @@ static inline int nmk_gpio_get_bitmask(int gpio)
        return 1 << (gpio % 32);
 }
 
-static void nmk_gpio_irq_ack(unsigned int irq)
+static void nmk_gpio_irq_ack(struct irq_data *d)
 {
        int gpio;
        struct nmk_gpio_chip *nmk_chip;
 
-       gpio = NOMADIK_IRQ_TO_GPIO(irq);
-       nmk_chip = get_irq_chip_data(irq);
+       gpio = NOMADIK_IRQ_TO_GPIO(d->irq);
+       nmk_chip = irq_data_get_irq_chip_data(d);
        if (!nmk_chip)
                return;
        writel(nmk_gpio_get_bitmask(gpio), nmk_chip->addr + NMK_GPIO_IC);
@@ -363,7 +401,7 @@ static void __nmk_gpio_irq_modify(struct nmk_gpio_chip *nmk_chip,
        }
 }
 
-static int nmk_gpio_irq_modify(unsigned int irq, enum nmk_gpio_irq_type which,
+static int nmk_gpio_irq_modify(struct irq_data *d, enum nmk_gpio_irq_type which,
                               bool enable)
 {
        int gpio;
@@ -371,8 +409,8 @@ static int nmk_gpio_irq_modify(unsigned int irq, enum nmk_gpio_irq_type which,
        unsigned long flags;
        u32 bitmask;
 
-       gpio = NOMADIK_IRQ_TO_GPIO(irq);
-       nmk_chip = get_irq_chip_data(irq);
+       gpio = NOMADIK_IRQ_TO_GPIO(d->irq);
+       nmk_chip = irq_data_get_irq_chip_data(d);
        bitmask = nmk_gpio_get_bitmask(gpio);
        if (!nmk_chip)
                return -EINVAL;
@@ -384,24 +422,24 @@ static int nmk_gpio_irq_modify(unsigned int irq, enum nmk_gpio_irq_type which,
        return 0;
 }
 
-static void nmk_gpio_irq_mask(unsigned int irq)
+static void nmk_gpio_irq_mask(struct irq_data *d)
 {
-       nmk_gpio_irq_modify(irq, NORMAL, false);
+       nmk_gpio_irq_modify(d, NORMAL, false);
 }
 
-static void nmk_gpio_irq_unmask(unsigned int irq)
+static void nmk_gpio_irq_unmask(struct irq_data *d)
 {
-       nmk_gpio_irq_modify(irq, NORMAL, true);
+       nmk_gpio_irq_modify(d, NORMAL, true);
 }
 
-static int nmk_gpio_irq_set_wake(unsigned int irq, unsigned int on)
+static int nmk_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
 {
        struct nmk_gpio_chip *nmk_chip;
        unsigned long flags;
        int gpio;
 
-       gpio = NOMADIK_IRQ_TO_GPIO(irq);
-       nmk_chip = get_irq_chip_data(irq);
+       gpio = NOMADIK_IRQ_TO_GPIO(d->irq);
+       nmk_chip = irq_data_get_irq_chip_data(d);
        if (!nmk_chip)
                return -EINVAL;
 
@@ -419,9 +457,9 @@ static int nmk_gpio_irq_set_wake(unsigned int irq, unsigned int on)
        return 0;
 }
 
-static int nmk_gpio_irq_set_type(unsigned int irq, unsigned int type)
+static int nmk_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 {
-       struct irq_desc *desc = irq_to_desc(irq);
+       struct irq_desc *desc = irq_to_desc(d->irq);
        bool enabled = !(desc->status & IRQ_DISABLED);
        bool wake = desc->wake_depth;
        int gpio;
@@ -429,8 +467,8 @@ static int nmk_gpio_irq_set_type(unsigned int irq, unsigned int type)
        unsigned long flags;
        u32 bitmask;
 
-       gpio = NOMADIK_IRQ_TO_GPIO(irq);
-       nmk_chip = get_irq_chip_data(irq);
+       gpio = NOMADIK_IRQ_TO_GPIO(d->irq);
+       nmk_chip = irq_data_get_irq_chip_data(d);
        bitmask = nmk_gpio_get_bitmask(gpio);
        if (!nmk_chip)
                return -EINVAL;
@@ -469,11 +507,11 @@ static int nmk_gpio_irq_set_type(unsigned int irq, unsigned int type)
 
 static struct irq_chip nmk_gpio_irq_chip = {
        .name           = "Nomadik-GPIO",
-       .ack            = nmk_gpio_irq_ack,
-       .mask           = nmk_gpio_irq_mask,
-       .unmask         = nmk_gpio_irq_unmask,
-       .set_type       = nmk_gpio_irq_set_type,
-       .set_wake       = nmk_gpio_irq_set_wake,
+       .irq_ack        = nmk_gpio_irq_ack,
+       .irq_mask       = nmk_gpio_irq_mask,
+       .irq_unmask     = nmk_gpio_irq_unmask,
+       .irq_set_type   = nmk_gpio_irq_set_type,
+       .irq_set_wake   = nmk_gpio_irq_set_wake,
 };
 
 static void nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
@@ -484,12 +522,12 @@ static void nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
        u32 pending;
        unsigned int first_irq;
 
-       if (host_chip->mask_ack)
-               host_chip->mask_ack(irq);
+       if (host_chip->irq_mask_ack)
+               host_chip->irq_mask_ack(&desc->irq_data);
        else {
-               host_chip->mask(irq);
-               if (host_chip->ack)
-                       host_chip->ack(irq);
+               host_chip->irq_mask(&desc->irq_data);
+               if (host_chip->irq_ack)
+                       host_chip->irq_ack(&desc->irq_data);
        }
 
        nmk_chip = get_irq_data(irq);
@@ -499,7 +537,7 @@ static void nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
                generic_handle_irq(gpio_irq);
        }
 
-       host_chip->unmask(irq);
+       host_chip->irq_unmask(&desc->irq_data);
 }
 
 static int nmk_gpio_init_irq(struct nmk_gpio_chip *nmk_chip)
@@ -634,7 +672,7 @@ static int __devinit nmk_gpio_probe(struct platform_device *dev)
 
        chip = &nmk_chip->chip;
        chip->base = pdata->first_gpio;
-       chip->label = pdata->name;
+       chip->label = pdata->name ?: dev_name(&dev->dev);
        chip->dev = &dev->dev;
        chip->owner = THIS_MODULE;