static int jpeg_probe(struct platform_device *pdev)
{
struct jpeg_dev *jpeg;
struct resource *res;
int i, ret;
jpeg = devm_kzalloc(&pdev->dev, sizeof(struct jpeg_dev), GFP_KERNEL);
if (!jpeg) {
dev_err(&pdev->dev, "%s: not enough memory\n", __func__);
return -ENOMEM;
}
ret = of_property_read_u32(pdev->dev.of_node, "ip_ver", &jpeg->ver);
if (ret) {
dev_err(&pdev->dev, "%s: ip_ver doesn't exist\n", __func__);
return -EINVAL;
}
jpeg->dev = &pdev->dev;
spin_lock_init(&jpeg->slock);
/* Get memory resource and map SFR region. */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
jpeg->regs = devm_request_and_ioremap(&pdev->dev, res);
if (jpeg->regs == NULL) {
dev_err(&pdev->dev, "failed to claim register region\n");
return -ENOENT;
}
/* Get IRQ resource and register IRQ handler. */
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res) {
dev_err(&pdev->dev, "failed to get IRQ resource\n");
return -ENXIO;
}
/* Get memory resource and map SFR region. */
ret = devm_request_irq(&pdev->dev, res->start,
(void *)jpeg_irq_handler, 0,
pdev->name, jpeg);
if (ret) {
dev_err(&pdev->dev, "failed to install irq\n");
return ret;
}
/* clock */
for (i = 0; i < JPEG_CLK_NUM; i++)
jpeg->clocks[i] = ERR_PTR(-ENOENT);
ret = jpeg_clk_get(jpeg);
if (ret)
return ret;
jpeg->oneshot_dev = m2m1shot_create_device(&pdev->dev,
&jpeg_oneshot_ops, "jpeg", pdev->id, -1);
if (IS_ERR(jpeg->oneshot_dev)) {
pr_err("%s: Failed to create m2m1shot device\n", __func__);
ret = PTR_ERR(jpeg->oneshot_dev);
goto err_m2m1shot;
}
platform_set_drvdata(pdev, jpeg);
ret = exynos_create_iovmm(&pdev->dev, 3, 3);
if (ret) {
dev_err(&pdev->dev,
"%s: Failed(%d) to create IOVMM\n", __func__, ret);
goto err_iovmm;
}
ret = iovmm_activate(&pdev->dev);
if (ret) {
dev_err(&pdev->dev,
"%s: Failed(%d) to activate IOVMM\n", __func__, ret);
/* nothing to do for exynos_create_iovmm() */
goto err_iovmm;
}
iovmm_set_fault_handler(&pdev->dev,
jpeg_sysmmu_fault_handler, jpeg);
pm_runtime_enable(&pdev->dev);
if (!IS_ENABLED(CONFIG_PM_RUNTIME)) {
jpeg_clock_gating(jpeg, true);
set_bit(DEV_RUNTIME_RESUME, &jpeg->state);
}
dev_info(&pdev->dev, "JPEG driver register successfully");
return 0;
err_iovmm:
m2m1shot_destroy_device(jpeg->oneshot_dev);
err_m2m1shot:
jpeg_clk_put(jpeg);
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;
}
int __devinit mxr_acquire_video(struct mxr_device *mdev,
struct mxr_output_conf *output_conf, int output_count)
{
int i;
int ret = 0;
struct v4l2_subdev *sd;
struct s5p_mxr_platdata *pdata = mdev->pdata;
mdev->alloc_ctx = mdev->vb2->init(mdev);
if (IS_ERR_OR_NULL(mdev->alloc_ctx)) {
mxr_err(mdev, "could not acquire vb2 allocator\n");
ret = PTR_ERR(mdev->alloc_ctx);
goto fail;
}
if (is_ip_ver_5r) {
exynos_create_iovmm(mdev->dev, 1, 0);
iovmm_reserve(mdev->dev, MXR_VA, MXR_VA);
} else {
exynos_create_iovmm(mdev->dev, 3, 0);
}
/* registering outputs */
mdev->output_cnt = 0;
for (i = 0; i < output_count; ++i) {
struct mxr_output_conf *conf = &output_conf[i];
struct mxr_output *out;
/* find subdev of output devices */
sd = (struct v4l2_subdev *)
module_name_to_driver_data(conf->module_name);
/* trying to register next output */
if (sd == NULL)
continue;
out = kzalloc(sizeof *out, GFP_KERNEL);
if (out == NULL) {
mxr_err(mdev, "no memory for '%s'\n",
conf->output_name);
ret = -ENOMEM;
/* registered subdevs are removed in fail_v4l2_dev */
goto fail_output;
}
strlcpy(out->name, conf->output_name, sizeof(out->name));
out->sd = sd;
out->cookie = conf->cookie;
mdev->output[mdev->output_cnt++] = out;
mxr_info(mdev, "added output '%s' from module '%s'\n",
conf->output_name, conf->module_name);
/* checking if maximal number of outputs is reached */
if (mdev->output_cnt >= MXR_MAX_OUTPUTS)
break;
}
if (mdev->output_cnt == 0) {
mxr_err(mdev, "failed to register any output\n");
ret = -ENODEV;
/* skipping fail_output because there is nothing to free */
goto fail_vb2_allocator;
}
return 0;
fail_output:
/* kfree is NULL-safe */
for (i = 0; i < mdev->output_cnt; ++i)
kfree(mdev->output[i]);
memset(mdev->output, 0, sizeof mdev->output);
fail_vb2_allocator:
/* freeing allocator context */
mdev->vb2->cleanup(mdev->alloc_ctx);
fail:
return ret;
}