From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marek Szyprowski Subject: [PATCH v2 8/8] mfd: exynos-lpass: Add runtime PM support Date: Thu, 26 Jan 2017 09:33:54 +0100 Message-ID: <1485419634-28331-9-git-send-email-m.szyprowski@samsung.com> References: <1485419634-28331-1-git-send-email-m.szyprowski@samsung.com> Return-path: In-reply-to: <1485419634-28331-1-git-send-email-m.szyprowski@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org To: linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Marek Szyprowski , Sylwester Nawrocki , Krzysztof Kozlowski , Linus Walleij , Tomasz Figa , Lee Jones , Bartlomiej Zolnierkiewicz List-Id: devicetree@vger.kernel.org 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 Acked-by: Krzysztof Kozlowski --- drivers/mfd/exynos-lpass.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/mfd/exynos-lpass.c b/drivers/mfd/exynos-lpass.c index 9dbbedad916f..6d735e22acda 100644 --- a/drivers/mfd/exynos-lpass.c +++ b/drivers/mfd/exynos-lpass.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include @@ -132,6 +133,8 @@ 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); @@ -141,7 +144,9 @@ 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; @@ -165,8 +170,11 @@ 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" }, -- 1.9.1