From 37cc7943788c841b03a48c00751dfac0ad9f5b12 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 1 Feb 2006 03:06:05 -0800 Subject: [PATCH] [PATCH] sh: convert voyagergx to platform device, drop sh-bus Trivial patch updating the voyagergx cchip code to reference a platform device instead, now that the dma mask is taken care of. Given this, there's no longer any reason to drag around the SH-bus code, so kill that off entirely. Signed-off-by: Manuel Lauss Signed-off-by: Paul Mundt Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/sh/cchips/voyagergx/consistent.c | 15 +- arch/sh/cchips/voyagergx/irq.c | 7 +- arch/sh/kernel/cpu/Makefile | 2 +- arch/sh/kernel/cpu/bus.c | 197 -------------------------- include/asm-sh/bus-sh.h | 66 --------- 5 files changed, 12 insertions(+), 275 deletions(-) delete mode 100644 arch/sh/kernel/cpu/bus.c delete mode 100644 include/asm-sh/bus-sh.h diff --git a/arch/sh/cchips/voyagergx/consistent.c b/arch/sh/cchips/voyagergx/consistent.c index 3d9a02c093a..07e8b9c5a53 100644 --- a/arch/sh/cchips/voyagergx/consistent.c +++ b/arch/sh/cchips/voyagergx/consistent.c @@ -15,7 +15,7 @@ #include #include #include -#include + struct voya_alloc_entry { struct list_head list; @@ -30,12 +30,13 @@ static LIST_HEAD(voya_alloc_list); #define OHCI_HCCA_SIZE 0x100 #define OHCI_SRAM_SIZE 0x10000 +#define VOYAGER_OHCI_NAME "voyager-ohci" + void *voyagergx_consistent_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t flag) { struct list_head *list = &voya_alloc_list; struct voya_alloc_entry *entry; - struct sh_dev *shdev = to_sh_dev(dev); unsigned long start, end; unsigned long flags; @@ -46,9 +47,7 @@ void *voyagergx_consistent_alloc(struct device *dev, size_t size, * * Everything else goes through consistent_alloc(). */ - if (!dev || dev->bus != &sh_bus_types[SH_BUS_VIRT] || - (dev->bus == &sh_bus_types[SH_BUS_VIRT] && - shdev->dev_id != SH_DEV_ID_USB_OHCI)) + if (!dev || strcmp(dev->driver->name, VOYAGER_OHCI_NAME)) return NULL; start = OHCI_SRAM_START + OHCI_HCCA_SIZE; @@ -98,12 +97,9 @@ int voyagergx_consistent_free(struct device *dev, size_t size, void *vaddr, dma_addr_t handle) { struct voya_alloc_entry *entry; - struct sh_dev *shdev = to_sh_dev(dev); unsigned long flags; - if (!dev || dev->bus != &sh_bus_types[SH_BUS_VIRT] || - (dev->bus == &sh_bus_types[SH_BUS_VIRT] && - shdev->dev_id != SH_DEV_ID_USB_OHCI)) + if (!dev || strcmp(dev->driver->name, VOYAGER_OHCI_NAME)) return -EINVAL; spin_lock_irqsave(&voya_list_lock, flags); @@ -123,4 +119,3 @@ int voyagergx_consistent_free(struct device *dev, size_t size, EXPORT_SYMBOL(voyagergx_consistent_alloc); EXPORT_SYMBOL(voyagergx_consistent_free); - diff --git a/arch/sh/cchips/voyagergx/irq.c b/arch/sh/cchips/voyagergx/irq.c index 1b6ac523b45..2ee330b3c38 100644 --- a/arch/sh/cchips/voyagergx/irq.c +++ b/arch/sh/cchips/voyagergx/irq.c @@ -163,7 +163,12 @@ int voyagergx_irq_demux(int irq) return irq; } -static struct irqaction irq0 = { voyagergx_interrupt, SA_INTERRUPT, 0, "VOYAGERGX", NULL, NULL}; +static struct irqaction irq0 = { + .name = "voyagergx", + .handler = voyagergx_interrupt, + .flags = SA_INTERRUPT, + .mask = CPU_MASK_NONE, +}; void __init setup_voyagergx_irq(void) { diff --git a/arch/sh/kernel/cpu/Makefile b/arch/sh/kernel/cpu/Makefile index 5bfc33bec5d..59d5b748752 100644 --- a/arch/sh/kernel/cpu/Makefile +++ b/arch/sh/kernel/cpu/Makefile @@ -2,7 +2,7 @@ # Makefile for the Linux/SuperH CPU-specifc backends. # -obj-y += irq/ init.o bus.o clock.o +obj-y += irq/ init.o clock.o obj-$(CONFIG_CPU_SH2) += sh2/ obj-$(CONFIG_CPU_SH3) += sh3/ diff --git a/arch/sh/kernel/cpu/bus.c b/arch/sh/kernel/cpu/bus.c deleted file mode 100644 index fc6c4bd40c6..00000000000 --- a/arch/sh/kernel/cpu/bus.c +++ /dev/null @@ -1,197 +0,0 @@ -/* - * arch/sh/kernel/cpu/bus.c - * - * Virtual bus for SuperH. - * - * Copyright (C) 2004 Paul Mundt - * - * Shamelessly cloned from arch/arm/mach-omap/bus.c, which was written - * by: - * - * Copyright (C) 2003 - 2004 Nokia Corporation - * Written by Tony Lindgren - * Portions of code based on sa1111.c. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ -#include -#include -#include -#include -#include - -static int sh_bus_match(struct device *dev, struct device_driver *drv) -{ - struct sh_driver *shdrv = to_sh_driver(drv); - struct sh_dev *shdev = to_sh_dev(dev); - - return shdev->dev_id == shdrv->dev_id; -} - -static int sh_bus_suspend(struct device *dev, pm_message_t state) -{ - struct sh_dev *shdev = to_sh_dev(dev); - struct sh_driver *shdrv = to_sh_driver(dev->driver); - - if (shdrv && shdrv->suspend) - return shdrv->suspend(shdev, state); - - return 0; -} - -static int sh_bus_resume(struct device *dev) -{ - struct sh_dev *shdev = to_sh_dev(dev); - struct sh_driver *shdrv = to_sh_driver(dev->driver); - - if (shdrv && shdrv->resume) - return shdrv->resume(shdev); - - return 0; -} - -static int sh_device_probe(struct device *dev) -{ - struct sh_dev *shdev = to_sh_dev(dev); - struct sh_driver *shdrv = to_sh_driver(dev->driver); - - if (shdrv && shdrv->probe) - return shdrv->probe(shdev); - - return -ENODEV; -} - -static int sh_device_remove(struct device *dev) -{ - struct sh_dev *shdev = to_sh_dev(dev); - struct sh_driver *shdrv = to_sh_driver(dev->driver); - - if (shdrv && shdrv->remove) - return shdrv->remove(shdev); - - return 0; -} - -static struct device sh_bus_devices[SH_NR_BUSES] = { - { - .bus_id = SH_BUS_NAME_VIRT, - }, -}; - -struct bus_type sh_bus_types[SH_NR_BUSES] = { - { - .name = SH_BUS_NAME_VIRT, - .match = sh_bus_match, - .probe = sh_bus_probe, - .remove = sh_bus_remove, - .suspend = sh_bus_suspend, - .resume = sh_bus_resume, - }, -}; - -int sh_device_register(struct sh_dev *dev) -{ - if (!dev) - return -EINVAL; - - if (dev->bus_id < 0 || dev->bus_id >= SH_NR_BUSES) { - printk(KERN_ERR "%s: bus_id invalid: %s bus: %d\n", - __FUNCTION__, dev->name, dev->bus_id); - return -EINVAL; - } - - dev->dev.parent = &sh_bus_devices[dev->bus_id]; - dev->dev.bus = &sh_bus_types[dev->bus_id]; - - /* This is needed for USB OHCI to work */ - if (dev->dma_mask) - dev->dev.dma_mask = dev->dma_mask; - if (dev->coherent_dma_mask) - dev->dev.coherent_dma_mask = dev->coherent_dma_mask; - - snprintf(dev->dev.bus_id, BUS_ID_SIZE, "%s%u", - dev->name, dev->dev_id); - - printk(KERN_INFO "Registering SH device '%s'. Parent at %s\n", - dev->dev.bus_id, dev->dev.parent->bus_id); - - return device_register(&dev->dev); -} - -void sh_device_unregister(struct sh_dev *dev) -{ - device_unregister(&dev->dev); -} - -int sh_driver_register(struct sh_driver *drv) -{ - if (!drv) - return -EINVAL; - - if (drv->bus_id < 0 || drv->bus_id >= SH_NR_BUSES) { - printk(KERN_ERR "%s: bus_id invalid: bus: %d device %d\n", - __FUNCTION__, drv->bus_id, drv->dev_id); - return -EINVAL; - } - - drv->drv.bus = &sh_bus_types[drv->bus_id]; - - return driver_register(&drv->drv); -} - -void sh_driver_unregister(struct sh_driver *drv) -{ - driver_unregister(&drv->drv); -} - -static int __init sh_bus_init(void) -{ - int i, ret = 0; - - for (i = 0; i < SH_NR_BUSES; i++) { - ret = device_register(&sh_bus_devices[i]); - if (ret != 0) { - printk(KERN_ERR "Unable to register bus device %s\n", - sh_bus_devices[i].bus_id); - continue; - } - - ret = bus_register(&sh_bus_types[i]); - if (ret != 0) { - printk(KERN_ERR "Unable to register bus %s\n", - sh_bus_types[i].name); - device_unregister(&sh_bus_devices[i]); - } - } - - printk(KERN_INFO "SH Virtual Bus initialized\n"); - - return ret; -} - -static void __exit sh_bus_exit(void) -{ - int i; - - for (i = 0; i < SH_NR_BUSES; i++) { - bus_unregister(&sh_bus_types[i]); - device_unregister(&sh_bus_devices[i]); - } -} - -module_init(sh_bus_init); -module_exit(sh_bus_exit); - -MODULE_AUTHOR("Paul Mundt "); -MODULE_DESCRIPTION("SH Virtual Bus"); -MODULE_LICENSE("GPL"); - -EXPORT_SYMBOL(sh_bus_types); -EXPORT_SYMBOL(sh_device_register); -EXPORT_SYMBOL(sh_device_unregister); -EXPORT_SYMBOL(sh_driver_register); -EXPORT_SYMBOL(sh_driver_unregister); - diff --git a/include/asm-sh/bus-sh.h b/include/asm-sh/bus-sh.h deleted file mode 100644 index e42d63b65cb..00000000000 --- a/include/asm-sh/bus-sh.h +++ /dev/null @@ -1,66 +0,0 @@ -/* - * include/asm-sh/bus-sh.h - * - * Copyright (C) 2004 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#ifndef __ASM_SH_BUS_SH_H -#define __ASM_SH_BUS_SH_H - -extern struct bus_type sh_bus_types[]; - -struct sh_dev { - struct device dev; - char *name; - unsigned int dev_id; - unsigned int bus_id; - struct resource res; - void *mapbase; - unsigned int irq[6]; - u64 *dma_mask; - u64 coherent_dma_mask; -}; - -#define to_sh_dev(d) container_of((d), struct sh_dev, dev) - -#define sh_get_drvdata(d) dev_get_drvdata(&(d)->dev) -#define sh_set_drvdata(d,p) dev_set_drvdata(&(d)->dev, (p)) - -struct sh_driver { - struct device_driver drv; - unsigned int dev_id; - unsigned int bus_id; - int (*probe)(struct sh_dev *); - int (*remove)(struct sh_dev *); - int (*suspend)(struct sh_dev *, pm_message_t); - int (*resume)(struct sh_dev *); -}; - -#define to_sh_driver(d) container_of((d), struct sh_driver, drv) -#define sh_name(d) ((d)->dev.driver->name) - -/* - * Device ID numbers for bus types - */ -enum { - SH_DEV_ID_USB_OHCI, -}; - -#define SH_NR_BUSES 1 -#define SH_BUS_NAME_VIRT "shbus" - -enum { - SH_BUS_VIRT, -}; - -/* arch/sh/kernel/cpu/bus.c */ -extern int sh_device_register(struct sh_dev *dev); -extern void sh_device_unregister(struct sh_dev *dev); -extern int sh_driver_register(struct sh_driver *drv); -extern void sh_driver_unregister(struct sh_driver *drv); - -#endif /* __ASM_SH_BUS_SH_H */ - -- 2.41.1