litmus-rt.git - The LITMUS^RT kernel.

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author	Andre Przywara <andre.przywara@linaro.org>	2013-12-13 15:49:19 -0500
committer	Daniel Lezcano <daniel.lezcano@linaro.org>	2013-12-30 05:55:20 -0500
commit	5781532ebecd9e0b7b5fc25d78030bdec635f4ac (patch)
tree	39d894f4e06b068144b7f26f2c01eca5df72850e /include/linux/string.h
parent	802eee95bde72fd0cd0f3a5b2098375a487d1eda (diff)

ARM/cpuidle: remove __init tag from Calxeda cpuidle probe function

Commit 60a66e370007e8535b7a561353b07b37deaf35ba changed the Calxeda cpuidle driver to a platform driver, copying the __init tag from the _init() to the newly used _probe() function. However, "probe should not be __init." (Rob said ;-) Remove the __init tag to fix a section mismatch in the Calxeda cpuidle driver. Signed-off-by: Andre Przywara <andre.przywara@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

Diffstat (limited to 'include/linux/string.h')

0 files changed, 0 insertions, 0 deletions

/* * manager.c - Resource Management, Conflict Resolution, Activation and Disabling of Devices * * based on isapnp.c resource management (c) Jaroslav Kysela <perex@perex.cz> * Copyright 2003 Adam Belay <ambx1@neo.rr.com> * Copyright (C) 2008 Hewlett-Packard Development Company, L.P. * Bjorn Helgaas <bjorn.helgaas@hp.com> */ #include <linux/errno.h> #include <linux/module.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/pnp.h> #include <linux/bitmap.h> #include <linux/mutex.h> #include "base.h" DEFINE_MUTEX(pnp_res_mutex); static int pnp_assign_port(struct pnp_dev *dev, struct pnp_port *rule, int idx) { struct resource *res, local_res; res = pnp_get_resource(dev, IORESOURCE_IO, idx); if (res) { pnp_dbg(&dev->dev, " io %d already set to %#llx-%#llx " "flags %#lx\n", idx, (unsigned long long) res->start, (unsigned long long) res->end, res->flags); return 0; } res = &local_res; res->flags = rule->flags | IORESOURCE_AUTO; res->start = 0; res->end = 0; if (!rule->size) { res->flags |= IORESOURCE_DISABLED; pnp_dbg(&dev->dev, " io %d disabled\n", idx); goto __add; } res->start = rule->min; res->end = res->start + rule->size - 1; while (!pnp_check_port(dev, res)) { res->start += rule->align; res->end = res->start + rule->size - 1; if (res->start > rule->max || !rule->align) { pnp_dbg(&dev->dev, " couldn't assign io %d " "(min %#llx max %#llx)\n", idx, (unsigned long long) rule->min, (unsigned long long) rule->max); return -EBUSY; } } __add: pnp_add_io_resource(dev, res->start, res->end, res->flags); return 0; } static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx) { struct resource *res, local_res; res = pnp_get_resource(dev, IORESOURCE_MEM, idx); if (res) { pnp_dbg(&dev->dev, " mem %d already set to %#llx-%#llx " "flags %#lx\n", idx, (unsigned long long) res->start, (unsigned long long) res->end, res->flags); return 0; } res = &local_res; res->flags = rule->flags | IORESOURCE_AUTO; res->start = 0; res->end = 0; if (!(rule->flags & IORESOURCE_MEM_WRITEABLE)) res->flags |= IORESOURCE_READONLY; if (rule->flags & IORESOURCE_MEM_CACHEABLE) res->flags |= IORESOURCE_CACHEABLE; if (rule->flags & IORESOURCE_MEM_RANGELENGTH) res->flags |= IORESOURCE_RANGELENGTH; if (rule->flags & IORESOURCE_MEM_SHADOWABLE) res->flags |= IORESOURCE_SHADOWABLE; if (!rule->size) { res->flags |= IORESOURCE_DISABLED; pnp_dbg(&dev->dev, " mem %d disabled\n", idx); goto __add; } res->start = rule->min; res->end = res->start + rule->size - 1; while (!pnp_check_mem(dev, res)) { res->start += rule->align; res->end = res->start + rule->size - 1; if (res->start > rule->max || !rule->align) { pnp_dbg(&dev->dev, " couldn't assign mem %d " "(min %#llx max %#llx)\n", idx, (unsigned long long) rule->min, (unsigned long long) rule->max); return -EBUSY; } } __add: pnp_add_mem_resource(dev, res->start, res->end, res->flags); return 0; } static int pnp_assign_irq(struct pnp_dev *dev, struct pnp_irq *rule, int idx) { struct resource *res, local_res; int i; /* IRQ priority: this table is good for i386 */ static unsigned short xtab[16] = { 5, 10, 11, 12, 9, 14, 15, 7, 3, 4, 13, 0, 1, 6, 8, 2 }; res = pnp_get_resource(dev, IORESOURCE_IRQ, idx); if (res) { pnp_dbg(&dev->dev, " irq %d already set to %d flags %#lx\n", idx, (int) res->start, res->flags); return 0; } res = &local_res; res->flags = rule->flags | IORESOURCE_AUTO; res->start = -1; res->end = -1; if (bitmap_empty(rule->map.bits, PNP_IRQ_NR)) { res->flags |= IORESOURCE_DISABLED; pnp_dbg(&dev->dev, " irq %d disabled\n", idx); goto __add; } /* TBD: need check for >16 IRQ */ res->start = find_next_bit(rule->map.bits, PNP_IRQ_NR, 16); if (res->start < PNP_IRQ_NR) { res->end = res->start; goto __add; } for (i = 0; i < 16; i++) { if (test_bit(xtab[i], rule->map.bits)) { res->start = res->end = xtab[i]; if (pnp_check_irq(dev, res)) goto __add; } } if (rule->flags & IORESOURCE_IRQ_OPTIONAL) { res->start = -1; res->end = -1; res->flags |= IORESOURCE_DISABLED; pnp_dbg(&dev->dev, " irq %d disabled (optional)\n", idx); goto __add; } pnp_dbg(&dev->dev, " couldn't assign irq %d\n", idx); return -EBUSY; __add: pnp_add_irq_resource(dev, res->start, res->flags); return 0; } #ifdef CONFIG_ISA_DMA_API static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx) { struct resource *res, local_res; int i; /* DMA priority: this table is good for i386 */ static unsigned short xtab[8] = { 1, 3, 5, 6, 7, 0, 2, 4 }; res = pnp_get_resource(dev, IORESOURCE_DMA, idx); if (res) { pnp_dbg(&dev->dev, " dma %d already set to %d flags %#lx\n", idx, (int) res->start, res->flags); return 0; } res = &local_res; res->flags = rule->flags | IORESOURCE_AUTO; res->start = -1; res->end = -1; for (i = 0; i < 8; i++) { if (rule->map & (1 << xtab[i])) { res->start = res->end = xtab[i]; if (pnp_check_dma(dev, res)) goto __add; } } #ifdef MAX_DMA_CHANNELS res->start = res->end = MAX_DMA_CHANNELS; #endif res->flags |= IORESOURCE_DISABLED; pnp_dbg(&dev->dev, " disable dma %d\n", idx); __add: pnp_add_dma_resource(dev, res->start, res->flags); return 0; } #endif /* CONFIG_ISA_DMA_API */ void pnp_init_resources(struct pnp_dev *dev) { pnp_free_resources(dev); } static void pnp_clean_resource_table(struct pnp_dev *dev) { struct pnp_resource *pnp_res, *tmp; list_for_each_entry_safe(pnp_res, tmp, &dev->resources, list) { if (pnp_res->res.flags & IORESOURCE_AUTO) pnp_free_resource(pnp_res); } } /** * pnp_assign_resources - assigns resources to the device based on the specified dependent number * @dev: pointer to the desired device * @set: the dependent function number */ static int pnp_assign_resources(struct pnp_dev *dev, int set) { struct pnp_option *option; int nport = 0, nmem = 0, nirq = 0; int ndma __maybe_unused = 0; int ret = 0; pnp_dbg(&dev->dev, "pnp_assign_resources, try dependent set %d\n", set); mutex_lock(&pnp_res_mutex); pnp_clean_resource_table(dev); list_for_each_entry(option, &dev->options, list) { if (pnp_option_is_dependent(option) && pnp_option_set(option) != set) continue; switch (option->type) { case IORESOURCE_IO: ret = pnp_assign_port(dev, &option->u.port, nport++); break; case IORESOURCE_MEM: ret = pnp_assign_mem(dev, &option->u.mem, nmem++); break; case IORESOURCE_IRQ: ret = pnp_assign_irq(dev, &option->u.irq, nirq++); break; #ifdef CONFIG_ISA_DMA_API case IORESOURCE_DMA: ret = pnp_assign_dma(dev, &option->u.dma, ndma++); break; #endif default: ret = -EINVAL; break; } if (ret < 0) break; } mutex_unlock(&pnp_res_mutex); if (ret < 0) { pnp_dbg(&dev->dev, "pnp_assign_resources failed (%d)\n", ret); pnp_clean_resource_table(dev); } else dbg_pnp_show_resources(dev, "pnp_assign_resources succeeded"); return ret; } /** * pnp_auto_config_dev - automatically assigns resources to a device * @dev: pointer to the desired device */ int pnp_auto_config_dev(struct pnp_dev *dev) { int i, ret; if (!pnp_can_configure(dev)) { pnp_dbg(&dev->dev, "configuration not supported\n"); return -ENODEV; } ret = pnp_assign_resources(dev, 0); if (ret == 0) return 0; for (i = 1; i < dev->num_dependent_sets; i++) { ret = pnp_assign_resources(dev, i); if (ret == 0) return 0; } dev_err(&dev->dev, "unable to assign resources\n"); return ret; } /** * pnp_start_dev - low-level start of the PnP device * @dev: pointer to the desired device * * assumes that resources have already been allocated */ int pnp_start_dev(struct pnp_dev *dev) { if (!pnp_can_write(dev)) { pnp_dbg(&dev->dev, "activation not supported\n"); return -EINVAL; } dbg_pnp_show_resources(dev, "pnp_start_dev"); if (dev->protocol->set(dev) < 0) { dev_err(&dev->dev, "activation failed\n"); return -EIO; } dev_info(&dev->dev, "activated\n"); return 0; } /** * pnp_stop_dev - low-level disable of the PnP device * @dev: pointer to the desired device * * does not free resources */ int pnp_stop_dev(struct pnp_dev *dev) { if (!pnp_can_disable(dev)) { pnp_dbg(&dev->dev, "disabling not supported\n"); return -EINVAL; } if (dev->protocol->disable(dev) < 0) { dev_err(&dev->dev, "disable failed\n"); return -EIO; } dev_info(&dev->dev, "disabled\n"); return 0; } /** * pnp_activate_dev - activates a PnP device for use * @dev: pointer to the desired device


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