static int jz_nemc_probe(struct platform_device *pdev)
{
struct jz_nemc *nemc;
struct jz_nand_params *nand_param = pdev->dev.platform_data;
struct resource *res;
int i;
nemc = (struct jz_nemc *)devm_kzalloc(&pdev->dev,
sizeof(struct jz_nemc), GFP_KERNEL);
if (!nemc)
return -ENOMEM;
nemc->pdev = pdev;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM , "nemc");
if (!res)
return -ENOMEM;
res = devm_request_mem_region(&pdev->dev, res->start,
resource_size(res), "nemc");
if (!res)
return -ENOMEM;
nemc->base = devm_ioremap_nocache(&pdev->dev, res->start, resource_size(res));
if(!nemc->base)
return -ENOMEM;
nemc->selected = -1;
for (i = 0; i < MAX_CHIP_NUM; i++) {
char name[20];
sprintf(name, "nemc-cs%d", i + 1);
res = platform_get_resource_byname(pdev, IORESOURCE_MEM , name);
if (!res)
break;
res = devm_request_mem_region(&pdev->dev, res->start,
resource_size(res), name);
if (!res)
return -ENOMEM;
nemc->chips[i].io_base = devm_ioremap_nocache(&pdev->dev,
res->start, resource_size(res));
if (!nemc->chips[i].io_base)
return -ENOMEM;
nemc->chips[i].bank = i + 1;
nemc->max_chip_num++;
}
if (nemc->max_chip_num == 0)
return -ENOMEM;
if (jz_nand_chip_init(nemc, nand_param))
return -EIO;
platform_set_drvdata(pdev, nemc);
dev_info(&pdev->dev, "Successfully registered External Nand Memory Controller driver\n");
return 0;
}
static int __devinit ltq_stp_probe(struct platform_device *pdev)
{
struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
int ret = 0;
if (!res)
return -ENOENT;
res = devm_request_mem_region(&pdev->dev, res->start,
resource_size(res), dev_name(&pdev->dev));
if (!res) {
dev_err(&pdev->dev, "failed to request STP memory\n");
return -EBUSY;
}
ltq_stp_membase = devm_ioremap_nocache(&pdev->dev, res->start,
resource_size(res));
if (!ltq_stp_membase) {
dev_err(&pdev->dev, "failed to remap STP memory\n");
return -ENOMEM;
}
ret = gpiochip_add(<q_stp_chip);
if (!ret)
ret = ltq_stp_hw_init();
return ret;
}
static int __init imx2_wdt_probe(struct platform_device *pdev)
{
int ret;
int res_size;
struct resource *res;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "can't get device resources\n");
return -ENODEV;
}
res_size = resource_size(res);
if (!devm_request_mem_region(&pdev->dev, res->start, res_size,
res->name)) {
dev_err(&pdev->dev, "can't allocate %d bytes at %d address\n",
res_size, res->start);
return -ENOMEM;
}
imx2_wdt.base = devm_ioremap_nocache(&pdev->dev, res->start, res_size);
if (!imx2_wdt.base) {
dev_err(&pdev->dev, "ioremap failed\n");
return -ENOMEM;
}
<<<<<<< HEAD
/**
* devm_request_and_ioremap() - Check, request region, and ioremap resource
* @dev: Generic device to handle the resource for
* @res: resource to be handled
*
* Takes all necessary steps to ioremap a mem resource. Uses managed device, so
* everything is undone on driver detach. Checks arguments, so you can feed
* it the result from e.g. platform_get_resource() directly. Returns the
* remapped pointer or NULL on error. Usage example:
*
* res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
* base = devm_request_and_ioremap(&pdev->dev, res);
* if (!base)
* return -EADDRNOTAVAIL;
*/
void __iomem *devm_request_and_ioremap(struct device *dev,
struct resource *res)
{
resource_size_t size;
const char *name;
void __iomem *dest_ptr;
BUG_ON(!dev);
if (!res || resource_type(res) != IORESOURCE_MEM) {
dev_err(dev, "invalid resource\n");
return NULL;
}
size = resource_size(res);
name = res->name ?: dev_name(dev);
if (!devm_request_mem_region(dev, res->start, size, name)) {
dev_err(dev, "can't request region for resource %pR\n", res);
return NULL;
}
if (res->flags & IORESOURCE_CACHEABLE)
dest_ptr = devm_ioremap(dev, res->start, size);
else
dest_ptr = devm_ioremap_nocache(dev, res->start, size);
if (!dest_ptr) {
dev_err(dev, "ioremap failed for resource %pR\n", res);
devm_release_mem_region(dev, res->start, size);
}
return dest_ptr;
}
static int meson_uart_request_port(struct uart_port *port)
{
struct platform_device *pdev = to_platform_device(port->dev);
struct resource *res;
int size;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "cannot obtain I/O memory region");
return -ENODEV;
}
size = resource_size(res);
if (!devm_request_mem_region(port->dev, port->mapbase, size,
dev_name(port->dev))) {
dev_err(port->dev, "Memory region busy\n");
return -EBUSY;
}
if (port->flags & UPF_IOREMAP) {
port->membase = devm_ioremap_nocache(port->dev,
port->mapbase,
size);
if (port->membase == NULL)
return -ENOMEM;
}
return 0;
}
/**
* devm_ioremap_resource() - check, request region, and ioremap resource
* @dev: generic device to handle the resource for
* @res: resource to be handled
*
* Checks that a resource is a valid memory region, requests the memory
* region and ioremaps it. All operations are managed and will be undone
* on driver detach.
*
* Returns a pointer to the remapped memory or an ERR_PTR() encoded error code
* on failure. Usage example:
*
* res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
* base = devm_ioremap_resource(&pdev->dev, res);
* if (IS_ERR(base))
* return PTR_ERR(base);
*/
void __iomem *devm_ioremap_resource(struct device *dev, struct resource *res)
{
resource_size_t size;
const char *name;
void __iomem *dest_ptr;
BUG_ON(!dev);
if (!res || resource_type(res) != IORESOURCE_MEM) {
dev_err(dev, "invalid resource\n");
return IOMEM_ERR_PTR(-EINVAL);
}
size = resource_size(res);
name = res->name ?: dev_name(dev);
if (!devm_request_mem_region(dev, res->start, size, name)) {
dev_err(dev, "can't request region for resource %pR\n", res);
return IOMEM_ERR_PTR(-EBUSY);
}
dest_ptr = devm_ioremap(dev, res->start, size);
if (!dest_ptr) {
dev_err(dev, "ioremap failed for resource %pR\n", res);
devm_release_mem_region(dev, res->start, size);
dest_ptr = IOMEM_ERR_PTR(-ENOMEM);
}
return dest_ptr;
}
static int __init
ltq_wdt_probe(struct platform_device *pdev)
{
struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
struct clk *clk;
if (!res) {
dev_err(&pdev->dev, "cannot obtain I/O memory region");
return -ENOENT;
}
res = devm_request_mem_region(&pdev->dev, res->start,
resource_size(res), dev_name(&pdev->dev));
if (!res) {
dev_err(&pdev->dev, "cannot request I/O memory region");
return -EBUSY;
}
ltq_wdt_membase = devm_ioremap_nocache(&pdev->dev, res->start,
resource_size(res));
if (!ltq_wdt_membase) {
dev_err(&pdev->dev, "cannot remap I/O memory region\n");
return -ENOMEM;
}
/* we do not need to enable the clock as it is always running */
clk = clk_get(&pdev->dev, "io");
WARN_ON(!clk);
ltq_io_region_clk_rate = clk_get_rate(clk);
clk_put(clk);
if (ltq_reset_cause() == LTQ_RST_CAUSE_WDTRST)
ltq_wdt_bootstatus = WDIOF_CARDRESET;
return misc_register(<q_wdt_miscdev);
}
/* Map the framebuffer from the card and configure the core */
static int mga_vram_init(struct mga_device *mdev)
{
void __iomem *mem;
struct apertures_struct *aper = alloc_apertures(1);
if (!aper)
return -ENOMEM;
/* BAR 0 is VRAM */
mdev->mc.vram_base = pci_resource_start(mdev->dev->pdev, 0);
mdev->mc.vram_window = pci_resource_len(mdev->dev->pdev, 0);
aper->ranges[0].base = mdev->mc.vram_base;
aper->ranges[0].size = mdev->mc.vram_window;
remove_conflicting_framebuffers(aper, "mgafb", true);
kfree(aper);
if (!devm_request_mem_region(mdev->dev->dev, mdev->mc.vram_base, mdev->mc.vram_window,
"mgadrmfb_vram")) {
DRM_ERROR("can't reserve VRAM\n");
return -ENXIO;
}
mem = pci_iomap(mdev->dev->pdev, 0, 0);
mdev->mc.vram_size = mga_probe_vram(mdev, mem);
pci_iounmap(mdev->dev->pdev, mem);
return 0;
}
static int __devinit remap_named_resource(struct platform_device *pdev,
char *name,
void __iomem **io_ptr)
{
struct resource *res;
resource_size_t size;
void __iomem *p;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
if (!res) {
dev_err(&pdev->dev, "failed to find resource [%s]\n", name);
return -ENXIO;
}
size = resource_size(res);
if (!devm_request_mem_region(&pdev->dev,
res->start, size, name)) {
dev_err(&pdev->dev, "failed to request memory region "
"[%s:0x%08x-0x%08x]\n", name, res->start, res->end);
return -EBUSY;
}
p = devm_ioremap_nocache(&pdev->dev, res->start, size);
if (!p) {
dev_err(&pdev->dev, "failed to remap memory region "
"[%s:0x%08x-0x%08x]\n", name, res->start, res->end);
return -ENOMEM;
}
*io_ptr = p;
return 0;
}
static int ds1553_rtc_probe(struct platform_device *pdev)
{
struct rtc_device *rtc;
struct resource *res;
unsigned int cen, sec;
struct rtc_plat_data *pdata;
void __iomem *ioaddr;
int ret = 0;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
if (!devm_request_mem_region(&pdev->dev, res->start, RTC_REG_SIZE,
pdev->name))
return -EBUSY;
ioaddr = devm_ioremap(&pdev->dev, res->start, RTC_REG_SIZE);
if (!ioaddr)
return -ENOMEM;
pdata->ioaddr = ioaddr;
pdata->irq = platform_get_irq(pdev, 0);
/* turn RTC on if it was not on */
sec = readb(ioaddr + RTC_SECONDS);
if (sec & RTC_STOP) {
sec &= RTC_SECONDS_MASK;
cen = readb(ioaddr + RTC_CENTURY) & RTC_CENTURY_MASK;
writeb(RTC_WRITE, ioaddr + RTC_CONTROL);
writeb(sec, ioaddr + RTC_SECONDS);
writeb(cen & RTC_CENTURY_MASK, ioaddr + RTC_CONTROL);
}
if (readb(ioaddr + RTC_FLAGS) & RTC_FLAGS_BLF)
dev_warn(&pdev->dev, "voltage-low detected.\n");
spin_lock_init(&pdata->lock);
pdata->last_jiffies = jiffies;
platform_set_drvdata(pdev, pdata);
if (pdata->irq > 0) {
writeb(0, ioaddr + RTC_INTERRUPTS);
if (devm_request_irq(&pdev->dev, pdata->irq,
ds1553_rtc_interrupt,
0, pdev->name, pdev) < 0) {
dev_warn(&pdev->dev, "interrupt not available.\n");
pdata->irq = 0;
}
}
rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
&ds1553_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc))
return PTR_ERR(rtc);
pdata->rtc = rtc;
ret = sysfs_create_bin_file(&pdev->dev.kobj, &ds1553_nvram_attr);
return ret;
}
static int __init tx4938ide_probe(struct platform_device *pdev)
{
struct ide_hw hw, *hws[] = { &hw };
struct ide_host *host;
struct resource *res;
struct tx4938ide_platform_info *pdata = pdev->dev.platform_data;
int irq, ret, i;
unsigned long mapbase, mapctl;
struct ide_port_info d = tx4938ide_port_info;
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return -ENODEV;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
if (!devm_request_mem_region(&pdev->dev, res->start,
resource_size(res), "tx4938ide"))
return -EBUSY;
mapbase = (unsigned long)devm_ioremap(&pdev->dev, res->start,
8 << pdata->ioport_shift);
mapctl = (unsigned long)devm_ioremap(&pdev->dev,
res->start + 0x10000 +
(6 << pdata->ioport_shift),
1 << pdata->ioport_shift);
if (!mapbase || !mapctl)
return -EBUSY;
memset(&hw, 0, sizeof(hw));
if (pdata->ioport_shift) {
unsigned long port = mapbase;
unsigned long ctl = mapctl;
hw.io_ports_array[0] = port;
#ifdef __BIG_ENDIAN
port++;
ctl++;
#endif
for (i = 1; i <= 7; i++)
hw.io_ports_array[i] =
port + (i << pdata->ioport_shift);
hw.io_ports.ctl_addr = ctl;
} else
ide_std_init_ports(&hw, mapbase, mapctl);
hw.irq = irq;
hw.dev = &pdev->dev;
pr_info("TX4938 IDE interface (base %#lx, ctl %#lx, irq %d)\n",
mapbase, mapctl, hw.irq);
if (pdata->gbus_clock)
tx4938ide_tune_ebusc(pdata->ebus_ch, pdata->gbus_clock, 0);
else
d.port_ops = NULL;
ret = ide_host_add(&d, hws, 1, &host);
if (!ret)
platform_set_drvdata(pdev, host);
return ret;
}
/**
* Creates an MC I/O object
*
* @dev: device to be associated with the MC I/O object
* @mc_portal_phys_addr: physical address of the MC portal to use
* @mc_portal_size: size in bytes of the MC portal
* @dpmcp-dev: Pointer to the DPMCP object associated with this MC I/O
* object or NULL if none.
* @flags: flags for the new MC I/O object
* @new_mc_io: Area to return pointer to newly created MC I/O object
*
* Returns '0' on Success; Error code otherwise.
*/
int __must_check fsl_create_mc_io(struct device *dev,
phys_addr_t mc_portal_phys_addr,
u32 mc_portal_size,
struct fsl_mc_device *dpmcp_dev,
u32 flags, struct fsl_mc_io **new_mc_io)
{
int error;
struct fsl_mc_io *mc_io;
void __iomem *mc_portal_virt_addr;
struct resource *res;
mc_io = devm_kzalloc(dev, sizeof(*mc_io), GFP_KERNEL);
if (!mc_io)
return -ENOMEM;
mc_io->dev = dev;
mc_io->flags = flags;
mc_io->portal_phys_addr = mc_portal_phys_addr;
mc_io->portal_size = mc_portal_size;
if (flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL)
spin_lock_init(&mc_io->spinlock);
else
mutex_init(&mc_io->mutex);
res = devm_request_mem_region(dev,
mc_portal_phys_addr,
mc_portal_size,
"mc_portal");
if (!res) {
dev_err(dev,
"devm_request_mem_region failed for MC portal %#llx\n",
mc_portal_phys_addr);
return -EBUSY;
}
mc_portal_virt_addr = devm_ioremap_nocache(dev,
mc_portal_phys_addr,
mc_portal_size);
if (!mc_portal_virt_addr) {
dev_err(dev,
"devm_ioremap_nocache failed for MC portal %#llx\n",
mc_portal_phys_addr);
return -ENXIO;
}
mc_io->portal_virt_addr = mc_portal_virt_addr;
if (dpmcp_dev) {
error = fsl_mc_io_set_dpmcp(mc_io, dpmcp_dev);
if (error < 0)
goto error_destroy_mc_io;
}
*new_mc_io = mc_io;
return 0;
error_destroy_mc_io:
fsl_destroy_mc_io(mc_io);
return error;
}
int custom_uart_driver_probe(struct platform_device *pdev)
{
// uart_am33x_port up;
// int ret;
// int irq;
void __iomem *membase;
struct resource *mem_res;
void __iomem *cm_per;
unsigned int uart5_clkctrl=0;
cm_per = ioremap(CM_PER_START_ADDR, CM_PER_SIZE);
if(!cm_per)
{
printk (KERN_ERR "HI: ERROR: Failed to remap memory for CM_PER.\n");
return 0;
}
uart5_clkctrl = ioread32(cm_per+CM_PER_UART4_CLKCTRL);
printk("\n uart5_clkctrl=%x\n",uart5_clkctrl);
iowrite32(0x02,cm_per+CM_PER_UART4_CLKCTRL); //Enable the clock for UART5
uart5_clkctrl = ioread32(cm_per+CM_PER_UART4_CLKCTRL);
printk("\n uart5_clkctrl=%x\n",uart5_clkctrl);
iounmap(cm_per);
printk("in probe: of_get_uart_port_info\n");
mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!mem_res)
{
dev_err(&pdev->dev, "no mem resource?\n");
return -ENODEV;
}
if (!devm_request_mem_region(&pdev->dev, mem_res->start, resource_size(mem_res),
pdev->dev.driver->name)) {
dev_err(&pdev->dev, "memory region already claimed\n");
return -EBUSY;
}
membase = devm_ioremap_nocache(&pdev->dev, mem_res->start,resource_size(mem_res));
if (!membase)
return -ENODEV;
printk("LCR=%x\n",ioread16(membase+0X0C));
iowrite16(0x00BF,membase+0X0C);
printk("LCR=%x\n",ioread16(membase+0X0C));
iowrite16( (ioread16(membase+0X0C))^0x01,membase+0X0C);
printk("LCR=%x\n",ioread16(membase+0X0C));
{
// unsigned int reg_val=0;
printk("MDR1=%x\n",ioread32(membase+0X20));
iowrite32((ioread32(membase+0X20))^0x01,membase+0X20); // FCR : TX_FIFO_CLEAR,RX_FIFO_CLEAR,FIFO_1byte
printk("MDR1=%x\n",ioread32(membase+0X20));
}
return 0;
}
static int jz_dmic_platfrom_probe(struct platform_device *pdev)
{
struct jz_dmic *jz_dmic;
struct resource *res = NULL;
int i = 0, ret;
jz_dmic = devm_kzalloc(&pdev->dev, sizeof(struct jz_dmic), GFP_KERNEL);
if (!jz_dmic)
return -ENOMEM;
jz_dmic->dev = &pdev->dev;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENOENT;
if (!devm_request_mem_region(&pdev->dev,
res->start, resource_size(res),pdev->name))
return -EBUSY;
jz_dmic->res_start = res->start;
jz_dmic->res_size = resource_size(res);
jz_dmic->vaddr_base = devm_ioremap_nocache(&pdev->dev,
jz_dmic->res_start, jz_dmic->res_size);
if (!jz_dmic->vaddr_base) {
dev_err(&pdev->dev, "Failed to ioremap mmio memory\n");
return -ENOMEM;
}
jz_dmic->dmic_mode = 0;
jz_dmic->rx_dma_data.dma_addr = (dma_addr_t)jz_dmic->res_start + DMICDR;
jz_dmic->vcc_dmic = regulator_get(&pdev->dev,"vcc_dmic");
platform_set_drvdata(pdev, (void *)jz_dmic);
for (; i < ARRAY_SIZE(jz_dmic_sysfs_attrs); i++) {
ret = device_create_file(&pdev->dev, &jz_dmic_sysfs_attrs[i]);
if (ret)
dev_warn(&pdev->dev,"attribute %s create failed %x",
attr_name(jz_dmic_sysfs_attrs[i]), ret);
}
jz_dmic->clk_gate_dmic = clk_get(&pdev->dev, "dmic");
if (IS_ERR_OR_NULL(jz_dmic->clk_gate_dmic)) {
ret = PTR_ERR(jz_dmic->clk_gate_dmic);
jz_dmic->clk_gate_dmic = NULL;
dev_err(&pdev->dev, "Failed to get clock: %d\n", ret);
return ret;
}
ret = snd_soc_register_component(&pdev->dev, &jz_dmic_component,
&jz_dmic_dai, 1);
if (ret)
goto err_register_cpu_dai;
dev_dbg(&pdev->dev, "dmic platform probe success\n");
return ret;
err_register_cpu_dai:
platform_set_drvdata(pdev, NULL);
return ret;
}
static int au1xac97c_drvprobe(struct platform_device *pdev)
{
int ret;
struct resource *iores, *dmares;
struct au1xpsc_audio_data *ctx;
ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
mutex_init(&ctx->lock);
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!iores)
return -ENODEV;
if (!devm_request_mem_region(&pdev->dev, iores->start,
resource_size(iores),
pdev->name))
return -EBUSY;
ctx->mmio = devm_ioremap_nocache(&pdev->dev, iores->start,
resource_size(iores));
if (!ctx->mmio)
return -EBUSY;
dmares = platform_get_resource(pdev, IORESOURCE_DMA, 0);
if (!dmares)
return -EBUSY;
ctx->dmaids[SNDRV_PCM_STREAM_PLAYBACK] = dmares->start;
dmares = platform_get_resource(pdev, IORESOURCE_DMA, 1);
if (!dmares)
return -EBUSY;
ctx->dmaids[SNDRV_PCM_STREAM_CAPTURE] = dmares->start;
/* switch it on */
WR(ctx, AC97_ENABLE, EN_D | EN_CE);
WR(ctx, AC97_ENABLE, EN_CE);
ctx->cfg = CFG_RC(3) | CFG_XS(3);
WR(ctx, AC97_CONFIG, ctx->cfg);
platform_set_drvdata(pdev, ctx);
ret = snd_soc_set_ac97_ops(&ac97c_bus_ops);
if (ret)
return ret;
ret = snd_soc_register_component(&pdev->dev, &au1xac97c_component,
&au1xac97c_dai_driver, 1);
if (ret)
return ret;
ac97c_workdata = ctx;
return 0;
}
static int bcm63xx_rng_probe(struct platform_device *pdev)
{
struct resource *r;
struct clk *clk;
int ret;
struct bcm63xx_rng_priv *priv;
struct hwrng *rng;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!r) {
dev_err(&pdev->dev, "no iomem resource\n");
return -ENXIO;
}
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->rng.name = pdev->name;
priv->rng.init = bcm63xx_rng_init;
priv->rng.cleanup = bcm63xx_rng_cleanup;
prov->rng.data_present = bcm63xx_rng_data_present;
priv->rng.data_read = bcm63xx_rng_data_read;
priv->clk = devm_clk_get(&pdev->dev, "ipsec");
if (IS_ERR(priv->clk)) {
error = PTR_ERR(priv->clk);
dev_err(&pdev->dev, "no clock for device: %d\n", error);
return error;
}
if (!devm_request_mem_region(&pdev->dev, r->start,
resource_size(r), pdev->name)) {
dev_err(&pdev->dev, "request mem failed");
return -EBUSY;
}
priv->regs = devm_ioremap_nocache(&pdev->dev, r->start,
resource_size(r));
if (!priv->regs) {
dev_err(&pdev->dev, "ioremap failed");
return -ENOMEM;
}
error = devm_hwrng_register(&pdev->dev, &priv->rng);
if (error) {
dev_err(&pdev->dev, "failed to register rng device: %d\n",
error);
return error;
}
dev_info(&pdev->dev, "registered RNG driver\n");
return 0;
}
static int __init imx2_wdt_probe(struct platform_device *pdev)
{
int ret;
int res_size;
struct resource *res;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "can't get device resources\n");
return -ENODEV;
}
res_size = resource_size(res);
if (!devm_request_mem_region(&pdev->dev, res->start, res_size,
res->name)) {
dev_err(&pdev->dev, "can't allocate %d bytes at %d address\n",
res_size, res->start);
return -ENOMEM;
}
imx2_wdt.base = devm_ioremap_nocache(&pdev->dev, res->start, res_size);
if (!imx2_wdt.base) {
dev_err(&pdev->dev, "ioremap failed\n");
return -ENOMEM;
}
imx2_wdt.clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(imx2_wdt.clk)) {
dev_err(&pdev->dev, "can't get Watchdog clock\n");
return PTR_ERR(imx2_wdt.clk);
}
imx2_wdt.timeout = clamp_t(unsigned, timeout, 1, IMX2_WDT_MAX_TIME);
if (imx2_wdt.timeout != timeout)
dev_warn(&pdev->dev, "Initial timeout out of range! "
"Clamped from %u to %u\n", timeout, imx2_wdt.timeout);
setup_timer(&imx2_wdt.timer, imx2_wdt_timer_ping, 0);
imx2_wdt_miscdev.parent = &pdev->dev;
ret = misc_register(&imx2_wdt_miscdev);
if (ret)
goto fail;
dev_info(&pdev->dev,
"IMX2+ Watchdog Timer enabled. timeout=%ds (nowayout=%d)\n",
imx2_wdt.timeout, nowayout);
return 0;
fail:
imx2_wdt_miscdev.parent = NULL;
clk_put(imx2_wdt.clk);
return ret;
}
static int spdif_out_probe(struct platform_device *pdev)
{
struct spdif_out_dev *host;
struct spear_spdif_platform_data *pdata;
struct resource *res;
int ret;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -EINVAL;
if (!devm_request_mem_region(&pdev->dev, res->start,
resource_size(res), pdev->name)) {
dev_warn(&pdev->dev, "Failed to get memory resourse\n");
return -ENOENT;
}
host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL);
if (!host) {
dev_warn(&pdev->dev, "kzalloc fail\n");
return -ENOMEM;
}
host->io_base = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
if (!host->io_base) {
dev_warn(&pdev->dev, "ioremap failed\n");
return -ENOMEM;
}
host->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(host->clk))
return PTR_ERR(host->clk);
pdata = dev_get_platdata(&pdev->dev);
host->dma_params.data = pdata->dma_params;
host->dma_params.addr = res->start + SPDIF_OUT_FIFO_DATA;
host->dma_params.max_burst = 16;
host->dma_params.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
host->dma_params.filter = pdata->filter;
dev_set_drvdata(&pdev->dev, host);
ret = snd_soc_register_component(&pdev->dev, &spdif_out_component,
&spdif_out_dai, 1);
if (ret != 0) {
clk_put(host->clk);
return ret;
}
return 0;
}
static int __devinit
sp805_wdt_probe(struct amba_device *adev, const struct amba_id *id)
{
int ret = 0;
if (!devm_request_mem_region(&adev->dev, adev->res.start,
resource_size(&adev->res), "sp805_wdt")) {
dev_warn(&adev->dev, "Failed to get memory region resource\n");
ret = -ENOENT;
goto err;
}
wdt = devm_kzalloc(&adev->dev, sizeof(*wdt), GFP_KERNEL);
if (!wdt) {
dev_warn(&adev->dev, "Kzalloc failed\n");
ret = -ENOMEM;
goto err;
}
wdt->base = devm_ioremap(&adev->dev, adev->res.start,
resource_size(&adev->res));
if (!wdt->base) {
ret = -ENOMEM;
dev_warn(&adev->dev, "ioremap fail\n");
goto err;
}
wdt->clk = clk_get(&adev->dev, NULL);
if (IS_ERR(wdt->clk)) {
dev_warn(&adev->dev, "Clock not found\n");
ret = PTR_ERR(wdt->clk);
goto err;
}
wdt->adev = adev;
spin_lock_init(&wdt->lock);
wdt_setload(DEFAULT_TIMEOUT);
ret = misc_register(&sp805_wdt_miscdev);
if (ret < 0) {
dev_warn(&adev->dev, "cannot register misc device\n");
goto err_misc_register;
}
dev_info(&adev->dev, "registration successful\n");
return 0;
err_misc_register:
clk_put(wdt->clk);
err:
dev_err(&adev->dev, "Probe Failed!!!\n");
return ret;
}
static int __devinit virtio_mmio_probe(struct platform_device *pdev)
{
struct virtio_mmio_device *vm_dev;
struct resource *mem;
unsigned long magic;
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!mem)
return -EINVAL;
if (!devm_request_mem_region(&pdev->dev, mem->start,
resource_size(mem), pdev->name))
return -EBUSY;
vm_dev = devm_kzalloc(&pdev->dev, sizeof(*vm_dev), GFP_KERNEL);
if (!vm_dev)
return -ENOMEM;
vm_dev->vdev.dev.parent = &pdev->dev;
vm_dev->vdev.config = &virtio_mmio_config_ops;
vm_dev->pdev = pdev;
INIT_LIST_HEAD(&vm_dev->virtqueues);
spin_lock_init(&vm_dev->lock);
vm_dev->base = devm_ioremap(&pdev->dev, mem->start, resource_size(mem));
if (vm_dev->base == NULL)
return -EFAULT;
/* Check magic value */
magic = readl(vm_dev->base + VIRTIO_MMIO_MAGIC_VALUE);
if (memcmp(&magic, "virt", 4) != 0) {
dev_warn(&pdev->dev, "Wrong magic value 0x%08lx!\n", magic);
return -ENODEV;
}
/* Check device version */
vm_dev->version = readl(vm_dev->base + VIRTIO_MMIO_VERSION);
if (vm_dev->version != 1) {
dev_err(&pdev->dev, "Version %ld not supported!\n",
vm_dev->version);
return -ENXIO;
}
vm_dev->vdev.id.device = readl(vm_dev->base + VIRTIO_MMIO_DEVICE_ID);
vm_dev->vdev.id.vendor = readl(vm_dev->base + VIRTIO_MMIO_VENDOR_ID);
writel(PAGE_SIZE, vm_dev->base + VIRTIO_MMIO_GUEST_PAGE_SIZE);
platform_set_drvdata(pdev, vm_dev);
return register_virtio_device(&vm_dev->vdev);
}
static int s5p_aes_probe(struct platform_device *pdev)
{
int i, j, err = -ENODEV;
struct s5p_aes_dev *pdata;
struct device *dev = &pdev->dev;
struct resource *res;
if (s5p_dev)
return -EEXIST;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
if (!devm_request_mem_region(dev, res->start,
resource_size(res), pdev->name))
return -EBUSY;
pdata->clk = clk_get(dev, "secss");
if (IS_ERR(pdata->clk)) {
dev_err(dev, "failed to find secss clock source\n");
return -ENOENT;
}
clk_enable(pdata->clk);
spin_lock_init(&pdata->lock);
pdata->ioaddr = devm_ioremap(dev, res->start,
resource_size(res));
pdata->irq_hash = platform_get_irq_byname(pdev, "hash");
if (pdata->irq_hash < 0) {
err = pdata->irq_hash;
dev_warn(dev, "hash interrupt is not available.\n");
goto err_irq;
}
err = devm_request_irq(dev, pdata->irq_hash, s5p_aes_interrupt,
IRQF_SHARED, pdev->name, pdev);
if (err < 0) {
dev_warn(dev, "hash interrupt is not available.\n");
goto err_irq;
}
pdata->irq_fc = platform_get_irq_byname(pdev, "feed control");
if (pdata->irq_fc < 0) {
err = pdata->irq_fc;
dev_warn(dev, "feed control interrupt is not ava
static int picoxcell_trng_probe(struct platform_device *pdev)
{
int ret;
struct resource *mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!mem) {
dev_warn(&pdev->dev, "no memory resource\n");
return -ENOMEM;
}
if (!devm_request_mem_region(&pdev->dev, mem->start, resource_size(mem),
"picoxcell_trng")) {
dev_warn(&pdev->dev, "unable to request io mem\n");
return -EBUSY;
}
rng_base = devm_ioremap(&pdev->dev, mem->start, resource_size(mem));
if (!rng_base) {
dev_warn(&pdev->dev, "unable to remap io mem\n");
return -ENOMEM;
}
rng_clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(rng_clk)) {
dev_warn(&pdev->dev, "no clk\n");
return PTR_ERR(rng_clk);
}
ret = clk_enable(rng_clk);
if (ret) {
dev_warn(&pdev->dev, "unable to enable clk\n");
goto err_enable;
}
picoxcell_trng_start();
ret = hwrng_register(&picoxcell_trng);
if (ret)
goto err_register;
rng_dev = &pdev->dev;
dev_info(&pdev->dev, "pixoxcell random number generator active\n");
return 0;
err_register:
clk_disable(rng_clk);
err_enable:
clk_put(rng_clk);
return ret;
}
static int gpio_apu2_probe (struct platform_device *dev)
{
int ret = 0;
int i;
struct pci_dev *pci_dev = NULL;
/* Match the PCI device */
for_each_pci_dev (pci_dev) {
if (pci_match_id (gpio_apu2_pci_tbl, pci_dev) != NULL) {
gpio_apu2_pci = pci_dev;
break;
}
}
if (!gpio_apu2_pci)
return -ENODEV;
pr_info ("%s: PCI Revision ID: 0x%x\n", DEVNAME, gpio_apu2_pci->revision);
/* Determine type of southbridge chipset */
if (gpio_apu2_pci->revision < 0x40) {
return -EACCES;
}
/* Request memory region for GPIO's */
if (!devm_request_mem_region (&dev->dev, FCH_GPIO_BASE,
FCH_GPIO_SIZE, DEVNAME)){
pr_err ("%s: request GPIO mem region failed\n", DEVNAME);
return -ENXIO;
}
/* Map IO's for GPIO's */
for (i = 0; i < APU_NUM_GPIO; i++) {
gpio_addr[i] = devm_ioremap (&dev->dev,
FCH_GPIO_BASE + (gpio_offset[i] * sizeof (u32)), sizeof (u32));
if (!gpio_addr[i]) {
pr_err ("%s: map GPIO%d address failed\n", DEVNAME, gpio_offset[i]);
return -ENXIO;
}
}
gpio_apu2_chip.dev = &dev->dev;
ret = gpiochip_add (&gpio_apu2_chip);
if (ret) {
pr_err ("%s: adding gpiochip failed\n", DEVNAME);
}
return ret;
}
static int __devinit stm_gpio_irqmux_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct stm_plat_pio_irqmux_data *plat_data = dev->platform_data;
struct stm_gpio_irqmux *irqmux;
struct resource *memory;
int irq;
int port_no;
BUG_ON(!plat_data);
irqmux = devm_kzalloc(dev, sizeof(*irqmux), GFP_KERNEL);
if (!irqmux)
return -ENOMEM;
memory = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq = platform_get_irq(pdev, 0);
if (!memory || irq < 0)
return -EINVAL;
if (!devm_request_mem_region(dev, memory->start,
memory->end - memory->start + 1, pdev->name))
return -EBUSY;
irqmux->base = devm_ioremap_nocache(dev, memory->start,
memory->end - memory->start + 1);
if (!irqmux->base)
return -ENOMEM;
irqmux->port_first = plat_data->port_first;
set_irq_chained_handler(irq, stm_gpio_irqmux_handler);
set_irq_data(irq, irqmux);
for (port_no = irqmux->port_first;
port_no < irqmux->port_first + plat_data->ports_num;
port_no++) {
BUG_ON(port_no >= stm_gpio_num);
if (stm_gpio_irq_init(port_no) != 0) {
printk(KERN_ERR "stm_gpio: Failed to init gpio "
"interrupt for port %d!\n", port_no);
return -EINVAL;
}
}
return 0;
}
static int octeon_gpio_probe(struct platform_device *pdev)
{
struct octeon_gpio *gpio;
struct gpio_chip *chip;
struct resource *res_mem;
int err = 0;
gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL);
if (!gpio)
return -ENOMEM;
chip = &gpio->chip;
res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res_mem == NULL) {
dev_err(&pdev->dev, "found no memory resource\n");
err = -ENXIO;
goto out;
}
if (!devm_request_mem_region(&pdev->dev, res_mem->start,
resource_size(res_mem),
res_mem->name)) {
dev_err(&pdev->dev, "request_mem_region failed\n");
err = -ENXIO;
goto out;
}
gpio->register_base = (u64)devm_ioremap(&pdev->dev, res_mem->start,
resource_size(res_mem));
pdev->dev.platform_data = chip;
chip->label = "octeon-gpio";
chip->parent = &pdev->dev;
chip->owner = THIS_MODULE;
chip->base = 0;
chip->can_sleep = false;
chip->ngpio = 20;
chip->direction_input = octeon_gpio_dir_in;
chip->get = octeon_gpio_get;
chip->direction_output = octeon_gpio_dir_out;
chip->set = octeon_gpio_set;
err = gpiochip_add_data(chip, gpio);
if (err)
goto out;
dev_info(&pdev->dev, "OCTEON GPIO driver probed.\n");
out:
return err;
}
static unsigned long i915_stolen_to_physical(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct resource *r;
u32 base;
/* Almost universally we can find the Graphics Base of Stolen Memory
* at offset 0x5c in the igfx configuration space. On a few (desktop)
* machines this is also mirrored in the bridge device at different
* locations, or in the MCHBAR. On gen2, the layout is again slightly
* different with the Graphics Segment immediately following Top of
* Memory (or Top of Usable DRAM). Note it appears that TOUD is only
* reported by 865g, so we just use the top of memory as determined
* by the e820 probe.
*
* XXX However gen2 requires an unavailable symbol.
*/
base = 0;
if (INTEL_INFO(dev)->gen >= 3) {
/* Read Graphics Base of Stolen Memory directly */
pci_read_config_dword(dev->pdev, 0x5c, &base);
base &= ~((1<<20) - 1);
} else { /* GEN2 */
#if 0
/* Stolen is immediately above Top of Memory */
base = max_low_pfn_mapped << PAGE_SHIFT;
#endif
}
if (base == 0)
return 0;
/* Verify that nothing else uses this physical address. Stolen
* memory should be reserved by the BIOS and hidden from the
* kernel. So if the region is already marked as busy, something
* is seriously wrong.
*/
r = devm_request_mem_region(dev->dev, base, dev_priv->gtt.stolen_size,
"Graphics Stolen Memory");
if (r == NULL) {
DRM_ERROR("conflict detected with stolen region: [0x%08x - 0x%08x]\n",
base, base + (uint32_t)dev_priv->gtt.stolen_size);
base = 0;
}
return base;
}
static void __iomem *request_and_map(struct device *dev,
const struct resource *res)
{
void __iomem *ptr;
if (!devm_request_mem_region(dev, res->start, resource_size(res),
"denali-dt")) {
dev_err(dev, "unable to request %s\n", res->name);
return NULL;
}
ptr = devm_ioremap_nocache(dev, res->start, resource_size(res));
if (!res)
dev_err(dev, "ioremap_nocache of %s failed!", res->name);
return ptr;
}
int dpa_bp_shared_port_seed(struct dpa_bp *bp)
{
/* In MAC-less and Shared-MAC scenarios the physical
* address of the buffer pool in device tree is set
* to 0 to specify that another entity (USDPAA) will
* allocate and seed the buffers
*/
if (!bp->paddr)
return 0;
/* allocate memory region for buffers */
devm_request_mem_region(bp->dev, bp->paddr,
bp->size * bp->config_count, KBUILD_MODNAME);
bp->vaddr = devm_ioremap_prot(bp->dev, bp->paddr,
bp->size * bp->config_count, 0);
if (bp->vaddr == NULL) {
pr_err("Could not map memory for pool %d\n", bp->bpid);
return -EIO;
}
/* seed pool with buffers from that memory region */
if (bp->seed_pool) {
int count = bp->target_count;
size_t addr = bp->paddr;
while (count) {
struct bm_buffer bufs[8];
int num_bufs = 0;
do {
BUG_ON(addr > 0xffffffffffffull);
bufs[num_bufs].bpid = bp->bpid;
bm_buffer_set64(&bufs[num_bufs++], addr);
addr += bp->size;
} while (--count && (num_bufs < 8));
while (bman_release(bp->pool, bufs, num_bufs, 0))
cpu_relax();
}
}
return 0;
}
static int __devinit dw_wdt_drv_probe(struct platform_device *pdev)
{
int ret;
struct resource *mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!mem)
return -EINVAL;
if (!devm_request_mem_region(&pdev->dev, mem->start, resource_size(mem),
"dw_wdt"))
return -ENOMEM;
dw_wdt.regs = devm_ioremap(&pdev->dev, mem->start, resource_size(mem));
if (!dw_wdt.regs)
return -ENOMEM;
dw_wdt.clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(dw_wdt.clk))
return PTR_ERR(dw_wdt.clk);
ret = clk_enable(dw_wdt.clk);
if (ret)
goto out_put_clk;
spin_lock_init(&dw_wdt.lock);
ret = misc_register(&dw_wdt_miscdev);
if (ret)
goto out_disable_clk;
dw_wdt_set_next_heartbeat();
setup_timer(&dw_wdt.timer, dw_wdt_ping, 0);
mod_timer(&dw_wdt.timer, jiffies + WDT_TIMEOUT);
return 0;
out_disable_clk:
clk_disable(dw_wdt.clk);
out_put_clk:
clk_put(dw_wdt.clk);
return ret;
}
static int ep93xx_wdt_probe(struct platform_device *pdev)
{
struct resource *res;
unsigned long val;
int err;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENXIO;
if (!devm_request_mem_region(&pdev->dev, res->start,
resource_size(res), pdev->name))
return -EBUSY;
mmio_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
if (!mmio_base)
return -ENXIO;
if (timeout < 1 || timeout > 3600) {
timeout = WDT_TIMEOUT;
dev_warn(&pdev->dev,
"timeout value must be 1<=x<=3600, using %d\n",
timeout);
}
val = readl(mmio_base + EP93XX_WATCHDOG);
ep93xx_wdt_wdd.bootstatus = (val & 0x01) ? WDIOF_CARDRESET : 0;
ep93xx_wdt_wdd.timeout = timeout;
watchdog_set_nowayout(&ep93xx_wdt_wdd, nowayout);
setup_timer(&timer, ep93xx_wdt_timer_ping, 1);
err = watchdog_register_device(&ep93xx_wdt_wdd);
if (err)
return err;
dev_info(&pdev->dev,
"EP93XX watchdog, driver version " WDT_VERSION "%s\n",
(val & 0x08) ? " (nCS1 disable detected)" : "");
return 0;
}