ieee1394: ohci1394: refactor probe, remove, suspend, resume

Clean up shared code and variable names.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

1 files changed, 49 insertions, 64 deletions

diff --git a/drivers/ieee1394/ohci1394.c b/drivers/ieee1394/ohci1394.c
index b4cad9f45862..29b891084ca7 100644
--- a/drivers/ieee1394/ohci1394.c
+++ b/drivers/ieee1394/ohci1394.c
@@ -2993,15 +2993,9 @@ do {						\
         return err;                             \
 } while (0)
 
-static int __devinit ohci1394_pci_probe(struct pci_dev *dev,
-                                        const struct pci_device_id *ent)
-{
-        struct hpsb_host *host;
-        struct ti_ohci *ohci;   /* shortcut to currently handled device */
-        resource_size_t ohci_base;
-
 #ifdef CONFIG_PPC_PMAC
-        /* Necessary on some machines if ohci1394 was loaded/ unloaded before */
+static void ohci1394_pmac_on(struct pci_dev *dev)
+{
         if (machine_is(powermac)) {
                 struct device_node *ofn = pci_device_to_OF_node(dev);
 
@@ -3010,8 +3004,32 @@ static int __devinit ohci1394_pci_probe(struct pci_dev *dev,
                         pmac_call_feature(PMAC_FTR_1394_ENABLE, ofn, 0, 1);
                 }
         }
+}
+
+static void ohci1394_pmac_off(struct pci_dev *dev)
+{
+        if (machine_is(powermac)) {
+                struct device_node *ofn = pci_device_to_OF_node(dev);
+
+                if (ofn) {
+                        pmac_call_feature(PMAC_FTR_1394_ENABLE, ofn, 0, 0);
+                        pmac_call_feature(PMAC_FTR_1394_CABLE_POWER, ofn, 0, 0);
+                }
+        }
+}
+#else
+#define ohci1394_pmac_on(dev)
+#define ohci1394_pmac_off(dev)
 #endif /* CONFIG_PPC_PMAC */
 
+static int __devinit ohci1394_pci_probe(struct pci_dev *dev,
+                                        const struct pci_device_id *ent)
+{
+        struct hpsb_host *host;
+        struct ti_ohci *ohci;   /* shortcut to currently handled device */
+        resource_size_t ohci_base;
+
+        ohci1394_pmac_on(dev);
         if (pci_enable_device(dev))
                 FAIL(-ENXIO, "Failed to enable OHCI hardware");
         pci_set_master(dev);
@@ -3203,16 +3221,16 @@ static int __devinit ohci1394_pci_probe(struct pci_dev *dev,
 #undef FAIL
 }
 
-static void ohci1394_pci_remove(struct pci_dev *pdev)
+static void ohci1394_pci_remove(struct pci_dev *dev)
 {
         struct ti_ohci *ohci;
-        struct device *dev;
+        struct device *device;
 
-        ohci = pci_get_drvdata(pdev);
+        ohci = pci_get_drvdata(dev);
         if (!ohci)
                 return;
 
-        dev = get_device(&ohci->host->device);
+        device = get_device(&ohci->host->device);
 
         switch (ohci->init_state) {
         case OHCI_INIT_DONE:
@@ -3246,7 +3264,7 @@ static void ohci1394_pci_remove(struct pci_dev *pdev)
                 /* Soft reset before we start - this disables
                  * interrupts and clears linkEnable and LPS. */
                 ohci_soft_reset(ohci);
-                free_irq(ohci->dev->irq, ohci);
+                free_irq(dev->irq, ohci);
 
         case OHCI_INIT_HAVE_TXRX_BUFFERS__MAYBE:
                 /* The ohci_soft_reset() stops all DMA contexts, so we
@@ -3257,12 +3275,12 @@ static void ohci1394_pci_remove(struct pci_dev *pdev)
                 free_dma_trm_ctx(&ohci->at_resp_context);
 
         case OHCI_INIT_HAVE_SELFID_BUFFER:
-                pci_free_consistent(ohci->dev, OHCI1394_SI_DMA_BUF_SIZE,
+                pci_free_consistent(dev, OHCI1394_SI_DMA_BUF_SIZE,
                                     ohci->selfid_buf_cpu,
                                     ohci->selfid_buf_bus);
 
         case OHCI_INIT_HAVE_CONFIG_ROM_BUFFER:
-                pci_free_consistent(ohci->dev, OHCI_CONFIG_ROM_LEN,
+                pci_free_consistent(dev, OHCI_CONFIG_ROM_LEN,
                                     ohci->csr_config_rom_cpu,
                                     ohci->csr_config_rom_bus);
 
@@ -3270,35 +3288,24 @@ static void ohci1394_pci_remove(struct pci_dev *pdev)
                 iounmap(ohci->registers);
 
         case OHCI_INIT_HAVE_MEM_REGION:
-                release_mem_region(pci_resource_start(ohci->dev, 0),
+                release_mem_region(pci_resource_start(dev, 0),
                                    OHCI1394_REGISTER_SIZE);
 
-#ifdef CONFIG_PPC_PMAC
-        /* On UniNorth, power down the cable and turn off the chip clock
-         * to save power on laptops */
-        if (machine_is(powermac)) {
-                struct device_node* ofn = pci_device_to_OF_node(ohci->dev);
-
-                if (ofn) {
-                        pmac_call_feature(PMAC_FTR_1394_ENABLE, ofn, 0, 0);
-                        pmac_call_feature(PMAC_FTR_1394_CABLE_POWER, ofn, 0, 0);
-                }
-        }
-#endif /* CONFIG_PPC_PMAC */
+                ohci1394_pmac_off(dev);
 
         case OHCI_INIT_ALLOC_HOST:
-                pci_set_drvdata(ohci->dev, NULL);
+                pci_set_drvdata(dev, NULL);
         }
 
-        if (dev)
-                put_device(dev);
+        if (device)
+                put_device(device);
 }
 
 #ifdef CONFIG_PM
-static int ohci1394_pci_suspend(struct pci_dev *pdev, pm_message_t state)
+static int ohci1394_pci_suspend(struct pci_dev *dev, pm_message_t state)
 {
         int err;
-        struct ti_ohci *ohci = pci_get_drvdata(pdev);
+        struct ti_ohci *ohci = pci_get_drvdata(dev);
 
         if (!ohci) {
                 printk(KERN_ERR "%s: tried to suspend nonexisting host\n",
@@ -3326,34 +3333,23 @@ static int ohci1394_pci_suspend(struct pci_dev *pdev, pm_message_t state)
         ohci_devctl(ohci->host, RESET_BUS, LONG_RESET_NO_FORCE_ROOT);
         ohci_soft_reset(ohci);
 
-        err = pci_save_state(pdev);
+        err = pci_save_state(dev);
         if (err) {
                 PRINT(KERN_ERR, "pci_save_state failed with %d", err);
                 return err;
         }
-        err = pci_set_power_state(pdev, pci_choose_state(pdev, state));
+        err = pci_set_power_state(dev, pci_choose_state(dev, state));
         if (err)
                 DBGMSG("pci_set_power_state failed with %d", err);
-
-/* PowerMac suspend code comes last */
-#ifdef CONFIG_PPC_PMAC
-        if (machine_is(powermac)) {
-                struct device_node *ofn = pci_device_to_OF_node(pdev);
-
-                if (ofn) {
-                        pmac_call_feature(PMAC_FTR_1394_ENABLE, ofn, 0, 0);
-                        pmac_call_feature(PMAC_FTR_1394_CABLE_POWER, ofn, 0, 0);
-                }
-        }
-#endif /* CONFIG_PPC_PMAC */
+        ohci1394_pmac_off(dev);
 
         return 0;
 }
 
-static int ohci1394_pci_resume(struct pci_dev *pdev)
+static int ohci1394_pci_resume(struct pci_dev *dev)
 {
         int err;
-        struct ti_ohci *ohci = pci_get_drvdata(pdev);
+        struct ti_ohci *ohci = pci_get_drvdata(dev);
 
         if (!ohci) {
                 printk(KERN_ERR "%s: tried to resume nonexisting host\n",
@@ -3362,21 +3358,10 @@ static int ohci1394_pci_resume(struct pci_dev *pdev)
         }
         DBGMSG("resume called");
 
-/* PowerMac resume code comes first */
-#ifdef CONFIG_PPC_PMAC
-        if (machine_is(powermac)) {
-                struct device_node *ofn = pci_device_to_OF_node(pdev);
-
-                if (ofn) {
-                        pmac_call_feature(PMAC_FTR_1394_CABLE_POWER, ofn, 0, 1);
-                        pmac_call_feature(PMAC_FTR_1394_ENABLE, ofn, 0, 1);
-                }
-        }
-#endif /* CONFIG_PPC_PMAC */
-
-        pci_set_power_state(pdev, PCI_D0);
-        pci_restore_state(pdev);
-        err = pci_enable_device(pdev);
+        ohci1394_pmac_on(dev);
+        pci_set_power_state(dev, PCI_D0);
+        pci_restore_state(dev);
+        err = pci_enable_device(dev);
         if (err) {
                 PRINT(KERN_ERR, "pci_enable_device failed with %d", err);
                 return err;