static int fimg2d_probe(struct platform_device *pdev)
{
int ret = 0;
struct resource *res;
if (!to_fimg2d_plat(&pdev->dev)) {
fimg2d_err("failed to get platform data\n");
return -ENOMEM;
}
/* global structure */
ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL);
if (!ctrl) {
fimg2d_err("failed to allocate memory for controller\n");
return -ENOMEM;
}
/* setup global ctrl */
ret = fimg2d_setup_controller(ctrl);
if (ret) {
fimg2d_err("failed to setup controller\n");
goto drv_free;
}
ctrl->dev = &pdev->dev;
/* memory region */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
fimg2d_err("failed to get resource\n");
ret = -ENOENT;
goto drv_free;
}
ctrl->mem = request_mem_region(res->start, resource_size(res),
pdev->name);
if (!ctrl->mem) {
fimg2d_err("failed to request memory region\n");
ret = -ENOMEM;
goto res_free;
}
/* ioremap */
ctrl->regs = ioremap(res->start, resource_size(res));
if (!ctrl->regs) {
fimg2d_err("failed to ioremap for SFR\n");
ret = -ENOENT;
goto mem_free;
}
fimg2d_info("base address: 0x%lx\n", (unsigned long)res->start);
/* irq */
ctrl->irq = platform_get_irq(pdev, 0);
if (!ctrl->irq) {
fimg2d_err("failed to get irq resource\n");
ret = -ENOENT;
goto reg_unmap;
}
fimg2d_info("irq: %d\n", ctrl->irq);
ret = request_irq(ctrl->irq, fimg2d_irq, IRQF_DISABLED,
pdev->name, ctrl);
if (ret) {
fimg2d_err("failed to request irq\n");
ret = -ENOENT;
goto reg_unmap;
}
ret = fimg2d_clk_setup(ctrl);
if (ret) {
fimg2d_err("failed to setup clk\n");
ret = -ENOENT;
goto irq_free;
}
#ifdef CONFIG_PM_RUNTIME
pm_runtime_enable(ctrl->dev);
fimg2d_info("enable runtime pm\n");
pm_runtime_get_sync(ctrl->dev);
#else
fimg2d_clk_on(ctrl);
#endif
exynos_sysmmu_set_fault_handler(ctrl->dev, fimg2d_sysmmu_fault_handler);
fimg2d_info("register sysmmu page fault handler\n");
/* misc register */
ret = misc_register(&fimg2d_dev);
if (ret) {
fimg2d_err("failed to register misc driver\n");
goto clk_release;
}
#ifdef CONFIG_ARM_EXYNOS_IKS_CPUFREQ
pm_qos_add_request(&exynos5_g2d_cpu_qos,
PM_QOS_CPU_FREQ_MIN, 0);
pm_qos_add_request(&exynos5_g2d_mif_qos,
PM_QOS_BUS_THROUGHPUT, 0);
#endif
return 0;
clk_release:
#ifdef CONFIG_PM_RUNTIME
pm_runtime_disable(ctrl->dev);
#else
fimg2d_clk_off(ctrl);
#endif
fimg2d_clk_release(ctrl);
irq_free:
free_irq(ctrl->irq, NULL);
reg_unmap:
iounmap(ctrl->regs);
mem_free:
kfree(ctrl->mem);
res_free:
release_resource(ctrl->mem);
drv_free:
#ifdef BLIT_WORKQUE
if (ctrl->work_q)
destroy_workqueue(ctrl->work_q);
#endif
mutex_destroy(&ctrl->drvlock);
kfree(ctrl);
return ret;
}
static int fimg2d_probe(struct platform_device *pdev)
{
struct resource *res;
struct fimg2d_platdata *pdata;
int ret;
pdata = to_fimg2d_plat(&pdev->dev);
if (!pdata) {
printk(KERN_ERR "FIMG2D failed to get platform data\n");
ret = -ENOMEM;
goto err_plat;
}
/* global structure */
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (!info) {
printk(KERN_ERR "FIMG2D failed to allocate memory for controller\n");
ret = -ENOMEM;
goto err_plat;
}
/* setup global info */
ret = fimg2d_setup_controller(info);
if (ret) {
printk(KERN_ERR "FIMG2D failed to setup controller\n");
goto err_setup;
}
info->dev = &pdev->dev;
/* memory region */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
printk(KERN_ERR "FIMG2D failed to get resource\n");
ret = -ENOENT;
goto err_res;
}
info->mem = request_mem_region(res->start, resource_size(res),
pdev->name);
if (!info->mem) {
printk(KERN_ERR "FIMG2D failed to request memory region\n");
ret = -ENOMEM;
goto err_region;
}
/* ioremap */
info->regs = ioremap(res->start, resource_size(res));
if (!info->regs) {
printk(KERN_ERR "FIMG2D failed to ioremap for SFR\n");
ret = -ENOENT;
goto err_map;
}
fimg2d_debug("device name: %s base address: 0x%lx\n",
pdev->name, (unsigned long)res->start);
/* irq */
info->irq = platform_get_irq(pdev, 0);
if (!info->irq) {
printk(KERN_ERR "FIMG2D failed to get irq resource\n");
ret = -ENOENT;
goto err_map;
}
fimg2d_debug("irq: %d\n", info->irq);
ret = request_irq(info->irq, fimg2d_irq, IRQF_DISABLED, pdev->name, info);
if (ret) {
printk(KERN_ERR "FIMG2D failed to request irq\n");
ret = -ENOENT;
goto err_irq;
}
ret = fimg2d_clk_setup(info);
if (ret) {
printk(KERN_ERR "FIMG2D failed to setup clk\n");
ret = -ENOENT;
goto err_clk;
}
#ifdef CONFIG_PM_RUNTIME
pm_runtime_enable(info->dev);
fimg2d_debug("enable runtime pm\n");
#endif
#ifdef CONFIG_BUSFREQ_OPP
#if defined(CONFIG_CPU_EXYNOS4412)
/* To lock bus frequency in OPP mode */
info->bus_dev = dev_get("exynos-busfreq");
#endif
#endif
s5p_sysmmu_set_fault_handler(info->dev, fimg2d_sysmmu_fault_handler);
fimg2d_debug("register sysmmu page fault handler\n");
/* misc register */
ret = misc_register(&fimg2d_dev);
if (ret) {
printk(KERN_ERR "FIMG2D failed to register misc driver\n");
goto err_reg;
}
printk(KERN_INFO "Samsung Graphics 2D driver, (c) 2011 Samsung Electronics\n");
return 0;
err_reg:
fimg2d_clk_release(info);
err_clk:
free_irq(info->irq, NULL);
err_irq:
iounmap(info->regs);
err_map:
kfree(info->mem);
err_region:
release_resource(info->mem);
err_res:
destroy_workqueue(info->work_q);
err_setup:
kfree(info);
err_plat:
return ret;
}
static int fimg2d_probe(struct platform_device *pdev)
{
int ret = 0;
struct resource *res;
struct fimg2d_platdata *pdata;
#ifdef CONFIG_OF
struct device *dev = &pdev->dev;
int id = 0;
#else
pdata = to_fimg2d_plat(&pdev->dev);
#endif
dev_info(&pdev->dev, "++%s\n", __func__);
#ifdef CONFIG_OF
if (dev->of_node) {
id = of_alias_get_id(pdev->dev.of_node, "fimg2d");
} else {
id = pdev->id;
pdata = dev->platform_data;
if (!pdata) {
dev_err(&pdev->dev, "no platform data\n");
return -EINVAL;
}
}
#else
if (!to_fimg2d_plat(&pdev->dev)) {
fimg2d_err("failed to get platform data\n");
return -ENOMEM;
}
#endif
/* global structure */
ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL);
if (!ctrl) {
fimg2d_err("failed to allocate memory for controller\n");
return -ENOMEM;
}
#ifdef CONFIG_OF
pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
if (!pdata) {
fimg2d_err("failed to allocate memory for controller\n");
kfree(ctrl);
return -ENOMEM;
}
ctrl->pdata = pdata;
g2d_parse_dt(dev->of_node, ctrl->pdata);
#endif
/* setup global ctrl */
ret = fimg2d_setup_controller(ctrl);
if (ret) {
fimg2d_err("failed to setup controller\n");
goto drv_free;
}
ctrl->dev = &pdev->dev;
/* memory region */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
fimg2d_err("failed to get resource\n");
ret = -ENOENT;
goto drv_free;
}
ctrl->mem = request_mem_region(res->start, resource_size(res),
pdev->name);
if (!ctrl->mem) {
fimg2d_err("failed to request memory region\n");
ret = -ENOMEM;
goto drv_free;
}
/* ioremap */
ctrl->regs = ioremap(res->start, resource_size(res));
if (!ctrl->regs) {
fimg2d_err("failed to ioremap for SFR\n");
ret = -ENOENT;
goto mem_free;
}
fimg2d_debug("base address: 0x%lx\n", (unsigned long)res->start);
/* irq */
ctrl->irq = platform_get_irq(pdev, 0);
if (!ctrl->irq) {
fimg2d_err("failed to get irq resource\n");
ret = -ENOENT;
goto reg_unmap;
}
fimg2d_debug("irq: %d\n", ctrl->irq);
ret = request_irq(ctrl->irq, fimg2d_irq, IRQF_DISABLED,
pdev->name, ctrl);
if (ret) {
fimg2d_err("failed to request irq\n");
ret = -ENOENT;
goto reg_unmap;
}
ret = fimg2d_clk_setup(ctrl);
if (ret) {
fimg2d_err("failed to setup clk\n");
ret = -ENOENT;
goto irq_free;
}
spin_lock_init(&ctrl->qoslock);
#ifdef CONFIG_PM_RUNTIME
pm_runtime_enable(ctrl->dev);
fimg2d_info("enable runtime pm\n");
#else
fimg2d_clk_on(ctrl);
#endif
#ifdef FIMG2D_IOVMM_PAGETABLE
exynos_create_iovmm(dev, 3, 3);
#endif
iovmm_set_fault_handler(dev, fimg2d_sysmmu_fault_handler, ctrl);
fimg2d_debug("register sysmmu page fault handler\n");
/* misc register */
ret = misc_register(&fimg2d_dev);
if (ret) {
fimg2d_err("failed to register misc driver\n");
goto clk_release;
}
fimg2d_pm_qos_add(ctrl);
dev_info(&pdev->dev, "fimg2d registered successfully\n");
return 0;
clk_release:
#ifdef CONFIG_PM_RUNTIME
pm_runtime_disable(ctrl->dev);
#else
fimg2d_clk_off(ctrl);
#endif
fimg2d_clk_release(ctrl);
irq_free:
free_irq(ctrl->irq, NULL);
reg_unmap:
iounmap(ctrl->regs);
mem_free:
release_mem_region(res->start, resource_size(res));
drv_free:
#ifdef BLIT_WORKQUE
if (ctrl->work_q)
destroy_workqueue(ctrl->work_q);
#endif
mutex_destroy(&ctrl->drvlock);
#ifdef CONFIG_OF
kfree(pdata);
#endif
kfree(ctrl);
return ret;
}