diff options
| -rw-r--r-- | drivers/soc/samsung/exynos-pmu.c | 22 | ||||
| -rw-r--r-- | include/linux/soc/samsung/exynos-pmu.h | 10 |
2 files changed, 24 insertions, 8 deletions
diff --git a/drivers/soc/samsung/exynos-pmu.c b/drivers/soc/samsung/exynos-pmu.c index 0acdfd82e751..813df6e7292d 100644 --- a/drivers/soc/samsung/exynos-pmu.c +++ b/drivers/soc/samsung/exynos-pmu.c @@ -11,6 +11,8 @@ #include <linux/of.h> #include <linux/of_address.h> +#include <linux/of_device.h> +#include <linux/mfd/syscon.h> #include <linux/platform_device.h> #include <linux/delay.h> @@ -92,9 +94,18 @@ static const struct of_device_id exynos_pmu_of_device_ids[] = { { /*sentinel*/ }, }; +struct regmap *exynos_get_pmu_regmap(void) +{ + struct device_node *np = of_find_matching_node(NULL, + exynos_pmu_of_device_ids); + if (np) + return syscon_node_to_regmap(np); + return ERR_PTR(-ENODEV); +} +EXPORT_SYMBOL_GPL(exynos_get_pmu_regmap); + static int exynos_pmu_probe(struct platform_device *pdev) { - const struct of_device_id *match; struct device *dev = &pdev->dev; struct resource *res; @@ -106,15 +117,10 @@ static int exynos_pmu_probe(struct platform_device *pdev) pmu_context = devm_kzalloc(&pdev->dev, sizeof(struct exynos_pmu_context), GFP_KERNEL); - if (!pmu_context) { - dev_err(dev, "Cannot allocate memory.\n"); + if (!pmu_context) return -ENOMEM; - } pmu_context->dev = dev; - - match = of_match_node(exynos_pmu_of_device_ids, dev->of_node); - - pmu_context->pmu_data = match->data; + pmu_context->pmu_data = of_device_get_match_data(dev); if (pmu_context->pmu_data->pmu_init) pmu_context->pmu_data->pmu_init(); diff --git a/include/linux/soc/samsung/exynos-pmu.h b/include/linux/soc/samsung/exynos-pmu.h index e2e9de1acc5b..e57eb4b6cc5a 100644 --- a/include/linux/soc/samsung/exynos-pmu.h +++ b/include/linux/soc/samsung/exynos-pmu.h @@ -12,6 +12,8 @@ #ifndef __LINUX_SOC_EXYNOS_PMU_H #define __LINUX_SOC_EXYNOS_PMU_H +struct regmap; + enum sys_powerdown { SYS_AFTR, SYS_LPA, @@ -20,5 +22,13 @@ enum sys_powerdown { }; extern void exynos_sys_powerdown_conf(enum sys_powerdown mode); +#ifdef CONFIG_EXYNOS_PMU +extern struct regmap *exynos_get_pmu_regmap(void); +#else +static inline struct regmap *exynos_get_pmu_regmap(void) +{ + return ERR_PTR(-ENODEV); +} +#endif #endif /* __LINUX_SOC_EXYNOS_PMU_H */ |