From 0aa0b93e7af663b6ca9d9ae31d1b73f2c36ddf46 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Thu, 25 May 2017 09:13:31 -0700 Subject: [PATCH] usb: host: ohci-platform: Add basic runtime PM support This is needed in preparation of adding support for omap3 and later OHCI. The runtime PM will only do something on platforms that implement it. Cc: devicetree@vger.kernel.org Cc: Hans de Goede Cc: Rob Herring Cc: Sebastian Reichel Cc: Yoshihiro Shimoda Signed-off-by: Tony Lindgren Acked-by: Roger Quadros Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ohci-platform.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c index 6368fce..589177d 100644 --- a/drivers/usb/host/ohci-platform.c +++ b/drivers/usb/host/ohci-platform.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include @@ -242,6 +243,8 @@ static int ohci_platform_probe(struct platform_device *dev) } #endif + pm_runtime_set_active(&dev->dev); + pm_runtime_enable(&dev->dev); if (pdata->power_on) { err = pdata->power_on(dev); if (err < 0) @@ -271,6 +274,7 @@ err_power: if (pdata->power_off) pdata->power_off(dev); err_reset: + pm_runtime_disable(&dev->dev); while (--rst >= 0) reset_control_assert(priv->resets[rst]); err_put_clks: @@ -292,6 +296,7 @@ static int ohci_platform_remove(struct platform_device *dev) struct ohci_platform_priv *priv = hcd_to_ohci_priv(hcd); int clk, rst; + pm_runtime_get_sync(&dev->dev); usb_remove_hcd(hcd); if (pdata->power_off) @@ -305,6 +310,9 @@ static int ohci_platform_remove(struct platform_device *dev) usb_put_hcd(hcd); + pm_runtime_put_sync(&dev->dev); + pm_runtime_disable(&dev->dev); + if (pdata == &ohci_platform_defaults) dev->dev.platform_data = NULL; -- 2.7.4