diff options
Diffstat (limited to 'drivers/media/platform/samsung/exynos4-is/fimc-is.c')
| -rw-r--r-- | drivers/media/platform/samsung/exynos4-is/fimc-is.c | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-is.c b/drivers/media/platform/samsung/exynos4-is/fimc-is.c index 530a148fe4d3..a08c87ef6e2d 100644 --- a/drivers/media/platform/samsung/exynos4-is/fimc-is.c +++ b/drivers/media/platform/samsung/exynos4-is/fimc-is.c @@ -767,12 +767,32 @@ static void fimc_is_debugfs_create(struct fimc_is *is) static int fimc_is_runtime_resume(struct device *dev); static int fimc_is_runtime_suspend(struct device *dev); +static void __iomem *fimc_is_get_pmu_regs(struct device *dev) +{ + struct device_node *node; + void __iomem *regs; + + node = of_parse_phandle(dev->of_node, "samsung,pmu-syscon", 0); + if (!node) { + node = of_get_child_by_name(dev->of_node, "pmu"); + if (!node) + return IOMEM_ERR_PTR(-ENODEV); + dev_warn(dev, "Found PMU node via deprecated method, update your DTB\n"); + } + + regs = of_iomap(node, 0); + of_node_put(node); + if (!regs) + return IOMEM_ERR_PTR(-ENOMEM); + + return regs; +} + static int fimc_is_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct fimc_is *is; struct resource res; - struct device_node *node; int ret; is = devm_kzalloc(&pdev->dev, sizeof(*is), GFP_KERNEL); @@ -794,14 +814,9 @@ static int fimc_is_probe(struct platform_device *pdev) if (IS_ERR(is->regs)) return PTR_ERR(is->regs); - node = of_get_child_by_name(dev->of_node, "pmu"); - if (!node) - return -ENODEV; - - is->pmu_regs = of_iomap(node, 0); - of_node_put(node); - if (!is->pmu_regs) - return -ENOMEM; + is->pmu_regs = fimc_is_get_pmu_regs(dev); + if (IS_ERR(is->pmu_regs)) + return PTR_ERR(is->pmu_regs); is->irq = irq_of_parse_and_map(dev->of_node, 0); if (!is->irq) { |