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authorStefan Roese <sr@denx.de>2008-07-14 16:38:30 -0400
committerJean Delvare <khali@mahadeva.delvare>2008-07-14 16:38:30 -0400
commite6c3de6c146d2513332c581433caca6e5cae62bf (patch)
tree17011570980ddc19527e065edbca0f9404b5c8c6 /drivers/i2c
parente0457442fd522107204da14a2dc2cbbb5dcac5f6 (diff)
i2c-ibm_iic: Remove deprecated OCP style part
The deprecated OCP style driver part is used by the "old" arch/ppc platform. This platform is scheduled for removal in June/July this year. This patch now removes the OCP driver part from the IBM I2C driver. Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-ibm_iic.c181
1 files changed, 0 insertions, 181 deletions
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index 6f7bfdec3c69..d8a19c110564 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -42,13 +42,7 @@
42#include <asm/io.h> 42#include <asm/io.h>
43#include <linux/i2c.h> 43#include <linux/i2c.h>
44#include <linux/i2c-id.h> 44#include <linux/i2c-id.h>
45
46#ifdef CONFIG_IBM_OCP
47#include <asm/ocp.h>
48#include <asm/ibm4xx.h>
49#else
50#include <linux/of_platform.h> 45#include <linux/of_platform.h>
51#endif
52 46
53#include "i2c-ibm_iic.h" 47#include "i2c-ibm_iic.h"
54 48
@@ -665,180 +659,6 @@ static inline u8 iic_clckdiv(unsigned int opb)
665 return (u8)((opb + 9) / 10 - 1); 659 return (u8)((opb + 9) / 10 - 1);
666} 660}
667 661
668#ifdef CONFIG_IBM_OCP
669/*
670 * Register single IIC interface
671 */
672static int __devinit iic_probe(struct ocp_device *ocp){
673
674 struct ibm_iic_private* dev;
675 struct i2c_adapter* adap;
676 struct ocp_func_iic_data* iic_data = ocp->def->additions;
677 int ret;
678
679 if (!iic_data)
680 printk(KERN_WARNING"ibm-iic%d: missing additional data!\n",
681 ocp->def->index);
682
683 if (!(dev = kzalloc(sizeof(*dev), GFP_KERNEL))) {
684 printk(KERN_ERR "ibm-iic%d: failed to allocate device data\n",
685 ocp->def->index);
686 return -ENOMEM;
687 }
688
689 dev->idx = ocp->def->index;
690 ocp_set_drvdata(ocp, dev);
691
692 if (!request_mem_region(ocp->def->paddr, sizeof(struct iic_regs),
693 "ibm_iic")) {
694 ret = -EBUSY;
695 goto fail1;
696 }
697
698 if (!(dev->vaddr = ioremap(ocp->def->paddr, sizeof(struct iic_regs)))){
699 printk(KERN_ERR "ibm-iic%d: failed to ioremap device registers\n",
700 dev->idx);
701 ret = -ENXIO;
702 goto fail2;
703 }
704
705 init_waitqueue_head(&dev->wq);
706
707 dev->irq = iic_force_poll ? -1 : ocp->def->irq;
708 if (dev->irq >= 0){
709 /* Disable interrupts until we finish initialization,
710 assumes level-sensitive IRQ setup...
711 */
712 iic_interrupt_mode(dev, 0);
713 if (request_irq(dev->irq, iic_handler, 0, "IBM IIC", dev)){
714 printk(KERN_ERR "ibm-iic%d: request_irq %d failed\n",
715 dev->idx, dev->irq);
716 /* Fallback to the polling mode */
717 dev->irq = -1;
718 }
719 }
720
721 if (dev->irq < 0)
722 printk(KERN_WARNING "ibm-iic%d: using polling mode\n",
723 dev->idx);
724
725 /* Board specific settings */
726 dev->fast_mode = iic_force_fast ? 1 : (iic_data ? iic_data->fast_mode : 0);
727
728 /* clckdiv is the same for *all* IIC interfaces,
729 * but I'd rather make a copy than introduce another global. --ebs
730 */
731 dev->clckdiv = iic_clckdiv(ocp_sys_info.opb_bus_freq);
732 DBG("%d: clckdiv = %d\n", dev->idx, dev->clckdiv);
733
734 /* Initialize IIC interface */
735 iic_dev_init(dev);
736
737 /* Register it with i2c layer */
738 adap = &dev->adap;
739 adap->dev.parent = &ocp->dev;
740 strcpy(adap->name, "IBM IIC");
741 i2c_set_adapdata(adap, dev);
742 adap->id = I2C_HW_OCP;
743 adap->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
744 adap->algo = &iic_algo;
745 adap->client_register = NULL;
746 adap->client_unregister = NULL;
747 adap->timeout = 1;
748
749 /*
750 * If "dev->idx" is negative we consider it as zero.
751 * The reason to do so is to avoid sysfs names that only make
752 * sense when there are multiple adapters.
753 */
754 adap->nr = dev->idx >= 0 ? dev->idx : 0;
755
756 if ((ret = i2c_add_numbered_adapter(adap)) < 0) {
757 printk(KERN_ERR "ibm-iic%d: failed to register i2c adapter\n",
758 dev->idx);
759 goto fail;
760 }
761
762 printk(KERN_INFO "ibm-iic%d: using %s mode\n", dev->idx,
763 dev->fast_mode ? "fast (400 kHz)" : "standard (100 kHz)");
764
765 return 0;
766
767fail:
768 if (dev->irq >= 0){
769 iic_interrupt_mode(dev, 0);
770 free_irq(dev->irq, dev);
771 }
772
773 iounmap(dev->vaddr);
774fail2:
775 release_mem_region(ocp->def->paddr, sizeof(struct iic_regs));
776fail1:
777 ocp_set_drvdata(ocp, NULL);
778 kfree(dev);
779 return ret;
780}
781
782/*
783 * Cleanup initialized IIC interface
784 */
785static void __devexit iic_remove(struct ocp_device *ocp)
786{
787 struct ibm_iic_private* dev = (struct ibm_iic_private*)ocp_get_drvdata(ocp);
788 BUG_ON(dev == NULL);
789 if (i2c_del_adapter(&dev->adap)){
790 printk(KERN_ERR "ibm-iic%d: failed to delete i2c adapter :(\n",
791 dev->idx);
792 /* That's *very* bad, just shutdown IRQ ... */
793 if (dev->irq >= 0){
794 iic_interrupt_mode(dev, 0);
795 free_irq(dev->irq, dev);
796 dev->irq = -1;
797 }
798 } else {
799 if (dev->irq >= 0){
800 iic_interrupt_mode(dev, 0);
801 free_irq(dev->irq, dev);
802 }
803 iounmap(dev->vaddr);
804 release_mem_region(ocp->def->paddr, sizeof(struct iic_regs));
805 kfree(dev);
806 }
807}
808
809static struct ocp_device_id ibm_iic_ids[] __devinitdata =
810{
811 { .vendor = OCP_VENDOR_IBM, .function = OCP_FUNC_IIC },
812 { .vendor = OCP_VENDOR_INVALID }
813};
814
815MODULE_DEVICE_TABLE(ocp, ibm_iic_ids);
816
817static struct ocp_driver ibm_iic_driver =
818{
819 .name = "iic",
820 .id_table = ibm_iic_ids,
821 .probe = iic_probe,
822 .remove = __devexit_p(iic_remove),
823#if defined(CONFIG_PM)
824 .suspend = NULL,
825 .resume = NULL,
826#endif
827};
828
829static int __init iic_init(void)
830{
831 printk(KERN_INFO "IBM IIC driver v" DRIVER_VERSION "\n");
832 return ocp_register_driver(&ibm_iic_driver);
833}
834
835static void __exit iic_exit(void)
836{
837 ocp_unregister_driver(&ibm_iic_driver);
838}
839
840#else /* !CONFIG_IBM_OCP */
841
842static int __devinit iic_request_irq(struct of_device *ofdev, 662static int __devinit iic_request_irq(struct of_device *ofdev,
843 struct ibm_iic_private *dev) 663 struct ibm_iic_private *dev)
844{ 664{
@@ -1011,7 +831,6 @@ static void __exit iic_exit(void)
1011{ 831{
1012 of_unregister_platform_driver(&ibm_iic_driver); 832 of_unregister_platform_driver(&ibm_iic_driver);
1013} 833}
1014#endif /* CONFIG_IBM_OCP */
1015 834
1016module_init(iic_init); 835module_init(iic_init);
1017module_exit(iic_exit); 836module_exit(iic_exit);