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| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2017-03-23 09:03:27 +0100 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2017-04-27 11:54:36 +0100 |
| commit | 90f447170c6f283a80a729ff92aabecdb2206cbe (patch) | |
| tree | d311ffa081b4aa47b1d9997f537c002dada62f4c /drivers/mfd | |
| parent | c414df12bdf7a3e730512ed3971e9d90a494cfa9 (diff) | |
| download | linux-90f447170c6f283a80a729ff92aabecdb2206cbe.tar.bz2 | |
mfd: exynos-lpass: Add runtime PM support
Convert exisitng lpass-suspend/resume callbacks into runtime PM callbacks.
This way Exynos LPASS driver will be ready for use with power domains
enabled. LPASS will be runtime resumed/suspended as a result of its child
devices runtime PM transitions.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/exynos-lpass.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/mfd/exynos-lpass.c b/drivers/mfd/exynos-lpass.c index 9325e0176761..0bf3aebdac45 100644 --- a/drivers/mfd/exynos-lpass.c +++ b/drivers/mfd/exynos-lpass.c @@ -22,6 +22,7 @@ #include <linux/of.h> #include <linux/of_platform.h> #include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include <linux/regmap.h> #include <linux/soc/samsung/exynos-regs-pmu.h> #include <linux/types.h> @@ -133,6 +134,8 @@ static int exynos_lpass_probe(struct platform_device *pdev) } platform_set_drvdata(pdev, lpass); + pm_runtime_set_active(dev); + pm_runtime_enable(dev); exynos_lpass_enable(lpass); return of_platform_populate(dev->of_node, NULL, NULL, dev); @@ -143,6 +146,9 @@ static int exynos_lpass_remove(struct platform_device *pdev) struct exynos_lpass *lpass = platform_get_drvdata(pdev); exynos_lpass_disable(lpass); + pm_runtime_disable(&pdev->dev); + if (!pm_runtime_status_suspended(&pdev->dev)) + exynos_lpass_disable(lpass); regmap_exit(lpass->top); return 0; @@ -166,8 +172,11 @@ static int __maybe_unused exynos_lpass_resume(struct device *dev) return 0; } -static SIMPLE_DEV_PM_OPS(lpass_pm_ops, exynos_lpass_suspend, - exynos_lpass_resume); +static const struct dev_pm_ops lpass_pm_ops = { + SET_RUNTIME_PM_OPS(exynos_lpass_suspend, exynos_lpass_resume, NULL) + SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) +}; static const struct of_device_id exynos_lpass_of_match[] = { { .compatible = "samsung,exynos5433-lpass" }, |