Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
[pandora-kernel.git] / drivers / macintosh / via-pmu.c
index c1193d3..4f04fd0 100644 (file)
@@ -16,7 +16,6 @@
  *    a sleep or a freq. switch
  *  - Move sleep code out of here to pmac_pm, merge into new
  *    common PM infrastructure
- *  - Move backlight code out as well
  *  - Save/Restore PCI space properly
  *
  */
 #include <asm/mmu_context.h>
 #include <asm/cputable.h>
 #include <asm/time.h>
-#ifdef CONFIG_PMAC_BACKLIGHT
 #include <asm/backlight.h>
-#endif
-
-#ifdef CONFIG_PPC32
-#include <asm/open_pic.h>
-#endif
 
 #include "via-pmu-event.h"
 
@@ -151,7 +144,7 @@ static int pmu_fully_inited = 0;
 static int pmu_has_adb;
 static struct device_node *gpio_node;
 static unsigned char __iomem *gpio_reg = NULL;
-static int gpio_irq = -1;
+static int gpio_irq = NO_IRQ;
 static int gpio_irq_enabled = -1;
 static volatile int pmu_suspended = 0;
 static spinlock_t pmu_lock;
@@ -181,10 +174,6 @@ static int query_batt_timer = BATTERY_POLLING_COUNT;
 static struct adb_request batt_req;
 static struct proc_dir_entry *proc_pmu_batt[PMU_MAX_BATTERIES];
 
-#if defined(CONFIG_INPUT_ADBHID) && defined(CONFIG_PMAC_BACKLIGHT)
-extern int disable_kernel_backlight;
-#endif /* defined(CONFIG_INPUT_ADBHID) && defined(CONFIG_PMAC_BACKLIGHT) */
-
 int __fake_sleep;
 int asleep;
 BLOCKING_NOTIFIER_HEAD(sleep_notifier_list);
@@ -291,7 +280,7 @@ static char *pbook_type[] = {
 int __init find_via_pmu(void)
 {
        u64 taddr;
-       u32 *reg;
+       const u32 *reg;
 
        if (via != 0)
                return 1;
@@ -299,7 +288,7 @@ int __init find_via_pmu(void)
        if (vias == NULL)
                return 0;
 
-       reg = (u32 *)get_property(vias, "reg", NULL);
+       reg = get_property(vias, "reg", NULL);
        if (reg == NULL) {
                printk(KERN_ERR "via-pmu: No \"reg\" property !\n");
                goto fail;
@@ -341,14 +330,16 @@ int __init find_via_pmu(void)
                
                gpiop = of_find_node_by_name(NULL, "gpio");
                if (gpiop) {
-                       reg = (u32 *)get_property(gpiop, "reg", NULL);
+                       reg = get_property(gpiop, "reg", NULL);
                        if (reg)
                                gaddr = of_translate_address(gpiop, reg);
                        if (gaddr != OF_BAD_ADDR)
                                gpio_reg = ioremap(gaddr, 0x10);
                }
-               if (gpio_reg == NULL)
+               if (gpio_reg == NULL) {
                        printk(KERN_ERR "via-pmu: Can't find GPIO reg !\n");
+                       goto fail_gpio;
+               }
        } else
                pmu_kind = PMU_UNKNOWN;
 
@@ -376,6 +367,9 @@ int __init find_via_pmu(void)
        return 1;
  fail:
        of_node_put(vias);
+       iounmap(gpio_reg);
+       gpio_reg = NULL;
+ fail_gpio:
        vias = NULL;
        return 0;
 }
@@ -403,22 +397,21 @@ static int __init pmu_init(void)
  */
 static int __init via_pmu_start(void)
 {
+       unsigned int irq;
+
        if (vias == NULL)
                return -ENODEV;
 
        batt_req.complete = 1;
 
-#ifndef CONFIG_PPC_MERGE
-       if (pmu_kind == PMU_KEYLARGO_BASED)
-               openpic_set_irq_priority(vias->intrs[0].line,
-                                        OPENPIC_PRIORITY_DEFAULT + 1);
-#endif
-
-       if (request_irq(vias->intrs[0].line, via_pmu_interrupt, 0, "VIA-PMU",
-                       (void *)0)) {
-               printk(KERN_ERR "VIA-PMU: can't get irq %d\n",
-                      vias->intrs[0].line);
-               return -EAGAIN;
+       irq = irq_of_parse_and_map(vias, 0);
+       if (irq == NO_IRQ) {
+               printk(KERN_ERR "via-pmu: can't map interruptn");
+               return -ENODEV;
+       }
+       if (request_irq(irq, via_pmu_interrupt, 0, "VIA-PMU", (void *)0)) {
+               printk(KERN_ERR "via-pmu: can't request irq %d\n", irq);
+               return -ENODEV;
        }
 
        if (pmu_kind == PMU_KEYLARGO_BASED) {
@@ -426,10 +419,10 @@ static int __init via_pmu_start(void)
                if (gpio_node == NULL)
                        gpio_node = of_find_node_by_name(NULL,
                                                         "pmu-interrupt");
-               if (gpio_node && gpio_node->n_intrs > 0)
-                       gpio_irq = gpio_node->intrs[0].line;
+               if (gpio_node)
+                       gpio_irq = irq_of_parse_and_map(gpio_node, 0);
 
-               if (gpio_irq != -1) {
+               if (gpio_irq != NO_IRQ) {
                        if (request_irq(gpio_irq, gpio1_interrupt, 0,
                                        "GPIO1 ADB", (void *)0))
                                printk(KERN_ERR "pmu: can't get irq %d"
@@ -471,7 +464,7 @@ static int __init via_pmu_dev_init(void)
 
 #ifdef CONFIG_PMAC_BACKLIGHT
        /* Initialize backlight */
-       pmu_backlight_init(vias);
+       pmu_backlight_init();
 #endif
 
 #ifdef CONFIG_PPC32
@@ -491,9 +484,9 @@ static int __init via_pmu_dev_init(void)
                pmu_batteries[1].flags |= PMU_BATT_TYPE_SMART;
        } else {
                struct device_node* prim = find_devices("power-mgt");
-               u32 *prim_info = NULL;
+               const u32 *prim_info = NULL;
                if (prim)
-                       prim_info = (u32 *)get_property(prim, "prim-info", NULL);
+                       prim_info = get_property(prim, "prim-info", NULL);
                if (prim_info) {
                        /* Other stuffs here yet unknown */
                        pmu_battery_count = (prim_info[6] >> 16) & 0xff;
@@ -1408,11 +1401,8 @@ next:
        else if ((1 << pirq) & PMU_INT_SNDBRT) {
 #ifdef CONFIG_PMAC_BACKLIGHT
                if (len == 3)
-#ifdef CONFIG_INPUT_ADBHID
-                       if (!disable_kernel_backlight)
-#endif /* CONFIG_INPUT_ADBHID */
-                               pmac_backlight_set_legacy_brightness(data[1] >> 4);
-#endif /* CONFIG_PMAC_BACKLIGHT */
+                       pmac_backlight_set_legacy_brightness_pmu(data[1] >> 4);
+#endif
        }
        /* Tick interrupt */
        else if ((1 << pirq) & PMU_INT_TICK) {
@@ -1842,7 +1832,7 @@ pbook_alloc_pci_save(void)
        struct pci_dev *pd = NULL;
 
        npci = 0;
-       while ((pd = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, pd)) != NULL) {
+       while ((pd = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pd)) != NULL) {
                ++npci;
        }
        if (npci == 0)
@@ -1872,9 +1862,11 @@ pbook_pci_save(void)
        if (ps == NULL)
                return;
 
-       while ((pd = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, pd)) != NULL) {
-               if (npci-- == 0)
+       while ((pd = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pd)) != NULL) {
+               if (npci-- == 0) {
+                       pci_dev_put(pd);
                        return;
+               }
 #ifndef HACKED_PCI_SAVE
                pci_read_config_word(pd, PCI_COMMAND, &ps->command);
                pci_read_config_word(pd, PCI_CACHE_LINE_SIZE, &ps->cache_lat);
@@ -1902,11 +1894,13 @@ pbook_pci_restore(void)
        int npci = pbook_npci_saves;
        int j;
 
-       while ((pd = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, pd)) != NULL) {
+       while ((pd = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pd)) != NULL) {
 #ifdef HACKED_PCI_SAVE
                int i;
-               if (npci-- == 0)
+               if (npci-- == 0) {
+                       pci_dev_put(pd);
                        return;
+               }
                ps++;
                for (i=2;i<16;i++)
                        pci_write_config_dword(pd, i<<4, ps->config[i]);
@@ -2010,6 +2004,8 @@ restore_via_state(void)
        out_8(&via[IER], IER_SET | SR_INT | CB1_INT);
 }
 
+extern void pmu_backlight_set_sleep(int sleep);
+
 static int
 pmac_suspend_devices(void)
 {
@@ -2047,6 +2043,11 @@ pmac_suspend_devices(void)
                return -EBUSY;
        }
 
+#ifdef CONFIG_PMAC_BACKLIGHT
+       /* Tell backlight code not to muck around with the chip anymore */
+       pmu_backlight_set_sleep(1);
+#endif
+
        /* Call platform functions marked "on sleep" */
        pmac_pfunc_i2c_suspend();
        pmac_pfunc_base_suspend();
@@ -2105,6 +2106,11 @@ pmac_wakeup_devices(void)
 {
        mdelay(100);
 
+#ifdef CONFIG_PMAC_BACKLIGHT
+       /* Tell backlight code it can use the chip again */
+       pmu_backlight_set_sleep(0);
+#endif
+
        /* Power back up system devices (including the PIC) */
        device_power_up();
 
@@ -2419,7 +2425,7 @@ struct pmu_private {
        spinlock_t lock;
 #if defined(CONFIG_INPUT_ADBHID) && defined(CONFIG_PMAC_BACKLIGHT)
        int     backlight_locker;
-#endif /* defined(CONFIG_INPUT_ADBHID) && defined(CONFIG_PMAC_BACKLIGHT) */    
+#endif
 };
 
 static LIST_HEAD(all_pmu_pvt);
@@ -2469,7 +2475,7 @@ pmu_open(struct inode *inode, struct file *file)
        spin_lock_irqsave(&all_pvt_lock, flags);
 #if defined(CONFIG_INPUT_ADBHID) && defined(CONFIG_PMAC_BACKLIGHT)
        pp->backlight_locker = 0;
-#endif /* defined(CONFIG_INPUT_ADBHID) && defined(CONFIG_PMAC_BACKLIGHT) */    
+#endif
        list_add(&pp->list, &all_pmu_pvt);
        spin_unlock_irqrestore(&all_pvt_lock, flags);
        file->private_data = pp;
@@ -2564,13 +2570,12 @@ pmu_release(struct inode *inode, struct file *file)
                spin_lock_irqsave(&all_pvt_lock, flags);
                list_del(&pp->list);
                spin_unlock_irqrestore(&all_pvt_lock, flags);
+
 #if defined(CONFIG_INPUT_ADBHID) && defined(CONFIG_PMAC_BACKLIGHT)
-               if (pp->backlight_locker) {
-                       spin_lock_irqsave(&pmu_lock, flags);
-                       disable_kernel_backlight--;
-                       spin_unlock_irqrestore(&pmu_lock, flags);
-               }
-#endif /* defined(CONFIG_INPUT_ADBHID) && defined(CONFIG_PMAC_BACKLIGHT) */
+               if (pp->backlight_locker)
+                       pmac_backlight_enable();
+#endif
+
                kfree(pp);
        }
        unlock_kernel();
@@ -2647,18 +2652,18 @@ pmu_ioctl(struct inode * inode, struct file *filp,
 #ifdef CONFIG_INPUT_ADBHID
        case PMU_IOC_GRAB_BACKLIGHT: {
                struct pmu_private *pp = filp->private_data;
-               unsigned long flags;
 
                if (pp->backlight_locker)
                        return 0;
+
                pp->backlight_locker = 1;
-               spin_lock_irqsave(&pmu_lock, flags);
-               disable_kernel_backlight++;
-               spin_unlock_irqrestore(&pmu_lock, flags);
+               pmac_backlight_disable();
+
                return 0;
        }
 #endif /* CONFIG_INPUT_ADBHID */
 #endif /* CONFIG_PMAC_BACKLIGHT_LEGACY */
+
        case PMU_IOC_GET_MODEL:
                return put_user(pmu_kind, argp);
        case PMU_IOC_HAS_ADB: