From mboxrd@z Thu Jan 1 00:00:00 1970 From: Felipe Balbi Subject: [PATCH 2/7] usb: dwc3: omap: add basic pm_runtime support Date: Thu, 12 Dec 2013 15:38:40 -0600 Message-ID: <1386884325-11440-3-git-send-email-balbi@ti.com> References: <1386884325-11440-1-git-send-email-balbi@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1386884325-11440-1-git-send-email-balbi@ti.com> Sender: linux-samsung-soc-owner@vger.kernel.org To: Linux USB Mailing List Cc: kgene.kim@samsung.com, Linux ARM Kernel Mailing List , linux-samsung-soc@vger.kernel.org, Linux OMAP Mailing List , w-kwok2@ti.com, Santosh Shilimkar , Felipe Balbi List-Id: linux-omap@vger.kernel.org If we want to suspend/runtime in runtime, we can do so, in OMAP's case at least, with the same implementation we use for system pm. This patch adds basic pm_runtime support with that in mind. Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/dwc3-omap.c | 39 +++++++++++++++++++++++++++++++++++---- 1 file changed, 35 insertions(+), 4 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index b269dbd..aea305d 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -617,20 +617,35 @@ static void dwc3_omap_complete(struct device *dev) dwc3_omap_enable_irqs(omap); } -static int dwc3_omap_suspend(struct device *dev) +static int __dwc3_omap_suspend(struct dwc3_omap *omap) { - struct dwc3_omap *omap = dev_get_drvdata(dev); - omap->utmi_otg_status = dwc3_omap_read_utmi_status(omap); return 0; } +static int __dwc3_omap_resume(struct dwc3_omap *omap) +{ + dwc3_omap_write_utmi_status(omap, omap->utmi_otg_status); + + return 0; +} + +static int dwc3_omap_suspend(struct device *dev) +{ + struct dwc3_omap *omap = dev_get_drvdata(dev); + + return __dwc3_omap_suspend(omap); +} + static int dwc3_omap_resume(struct device *dev) { struct dwc3_omap *omap = dev_get_drvdata(dev); + int ret; - dwc3_omap_write_utmi_status(omap, omap->utmi_otg_status); + ret = __dwc3_omap_resume(omap); + if (ret) + return ret; pm_runtime_disable(dev); pm_runtime_set_active(dev); @@ -639,11 +654,27 @@ static int dwc3_omap_resume(struct device *dev) return 0; } +static int dwc3_omap_runtime_suspend(struct device *dev) +{ + struct dwc3_omap *omap = dev_get_drvdata(dev); + + return __dwc3_omap_suspend(omap); +} + +static int dwc3_omap_runtime_resume(struct device *dev) +{ + struct dwc3_omap *omap = dev_get_drvdata(dev); + + return __dwc3_omap_resume(omap); +} + static const struct dev_pm_ops dwc3_omap_dev_pm_ops = { .prepare = dwc3_omap_prepare, .complete = dwc3_omap_complete, SET_SYSTEM_SLEEP_PM_OPS(dwc3_omap_suspend, dwc3_omap_resume) + SET_RUNTIME_PM_OPS(dwc3_omap_runtime_suspend, dwc3_omap_runtime_resume, + NULL) }; #define DEV_PM_OPS (&dwc3_omap_dev_pm_ops) -- 1.8.4.GIT From mboxrd@z Thu Jan 1 00:00:00 1970 From: balbi@ti.com (Felipe Balbi) Date: Thu, 12 Dec 2013 15:38:40 -0600 Subject: [PATCH 2/7] usb: dwc3: omap: add basic pm_runtime support In-Reply-To: <1386884325-11440-1-git-send-email-balbi@ti.com> References: <1386884325-11440-1-git-send-email-balbi@ti.com> Message-ID: <1386884325-11440-3-git-send-email-balbi@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org If we want to suspend/runtime in runtime, we can do so, in OMAP's case at least, with the same implementation we use for system pm. This patch adds basic pm_runtime support with that in mind. Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/dwc3-omap.c | 39 +++++++++++++++++++++++++++++++++++---- 1 file changed, 35 insertions(+), 4 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index b269dbd..aea305d 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -617,20 +617,35 @@ static void dwc3_omap_complete(struct device *dev) dwc3_omap_enable_irqs(omap); } -static int dwc3_omap_suspend(struct device *dev) +static int __dwc3_omap_suspend(struct dwc3_omap *omap) { - struct dwc3_omap *omap = dev_get_drvdata(dev); - omap->utmi_otg_status = dwc3_omap_read_utmi_status(omap); return 0; } +static int __dwc3_omap_resume(struct dwc3_omap *omap) +{ + dwc3_omap_write_utmi_status(omap, omap->utmi_otg_status); + + return 0; +} + +static int dwc3_omap_suspend(struct device *dev) +{ + struct dwc3_omap *omap = dev_get_drvdata(dev); + + return __dwc3_omap_suspend(omap); +} + static int dwc3_omap_resume(struct device *dev) { struct dwc3_omap *omap = dev_get_drvdata(dev); + int ret; - dwc3_omap_write_utmi_status(omap, omap->utmi_otg_status); + ret = __dwc3_omap_resume(omap); + if (ret) + return ret; pm_runtime_disable(dev); pm_runtime_set_active(dev); @@ -639,11 +654,27 @@ static int dwc3_omap_resume(struct device *dev) return 0; } +static int dwc3_omap_runtime_suspend(struct device *dev) +{ + struct dwc3_omap *omap = dev_get_drvdata(dev); + + return __dwc3_omap_suspend(omap); +} + +static int dwc3_omap_runtime_resume(struct device *dev) +{ + struct dwc3_omap *omap = dev_get_drvdata(dev); + + return __dwc3_omap_resume(omap); +} + static const struct dev_pm_ops dwc3_omap_dev_pm_ops = { .prepare = dwc3_omap_prepare, .complete = dwc3_omap_complete, SET_SYSTEM_SLEEP_PM_OPS(dwc3_omap_suspend, dwc3_omap_resume) + SET_RUNTIME_PM_OPS(dwc3_omap_runtime_suspend, dwc3_omap_runtime_resume, + NULL) }; #define DEV_PM_OPS (&dwc3_omap_dev_pm_ops) -- 1.8.4.GIT