From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-bw0-f46.google.com ([209.85.214.46]:44704 "EHLO mail-bw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752660Ab0HKNTg (ORCPT ); Wed, 11 Aug 2010 09:19:36 -0400 From: Ohad Ben-Cohen To: , Cc: , Luciano Coelho , , Ido Yariv , San Mehat , Roger Quadros , Nicolas Pitre , Gao Yunpeng , Ohad Ben-Cohen Subject: [RFC/PATCH 3/6] mmc: add general runtime PM support Date: Wed, 11 Aug 2010 16:19:27 +0300 Message-Id: <1281532770-27545-4-git-send-email-ohad@wizery.com> In-Reply-To: <1281532770-27545-1-git-send-email-ohad@wizery.com> References: <1281532770-27545-1-git-send-email-ohad@wizery.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: Add Runtime PM handlers to mmc, which calls mmc_power_save_host and mmc_power_restore_host in respond to runtime_suspend and runtime_resume events. Runtime PM is still disabled by default, so this patch alone has no immediate effect. Signed-off-by: Ohad Ben-Cohen --- drivers/mmc/core/bus.c | 35 +++++++++++++++++++++++++++++++++++ 1 files changed, 35 insertions(+), 0 deletions(-) diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 49d9dca..27902b4 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include @@ -137,6 +138,39 @@ static int mmc_bus_resume(struct device *dev) return ret; } +static int mmc_runtime_suspend(struct device *dev) +{ + int status = 0; + struct mmc_card *card = dev_to_mmc_card(dev); + + mmc_power_save_host(card->host); + + return status; +} + +static int mmc_runtime_resume(struct device *dev) +{ + int status = 0; + struct mmc_card *card = dev_to_mmc_card(dev); + + mmc_power_restore_host(card->host); + + return status; +} + +static int mmc_runtime_idle(struct device *dev) +{ + struct mmc_card *card = dev_to_mmc_card(dev); + + return pm_runtime_suspend(dev); +} + +static const struct dev_pm_ops mmc_bus_pm_ops = { + .runtime_suspend = mmc_runtime_suspend, + .runtime_resume = mmc_runtime_resume, + .runtime_idle = mmc_runtime_idle, +}; + static struct bus_type mmc_bus_type = { .name = "mmc", .dev_attrs = mmc_dev_attrs, @@ -146,6 +180,7 @@ static struct bus_type mmc_bus_type = { .remove = mmc_bus_remove, .suspend = mmc_bus_suspend, .resume = mmc_bus_resume, + .pm = &mmc_bus_pm_ops, }; int mmc_register_bus(void) -- 1.7.0.4 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ohad Ben-Cohen Subject: [RFC/PATCH 3/6] mmc: add general runtime PM support Date: Wed, 11 Aug 2010 16:19:27 +0300 Message-ID: <1281532770-27545-4-git-send-email-ohad@wizery.com> References: <1281532770-27545-1-git-send-email-ohad@wizery.com> Return-path: In-Reply-To: <1281532770-27545-1-git-send-email-ohad-Ix1uc/W3ht7QT0dZR+AlfA@public.gmane.org> Sender: linux-wireless-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mmc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Luciano Coelho , akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, Ido Yariv , San Mehat , Roger Quadros , Nicolas Pitre , Gao Yunpeng , Ohad Ben-Cohen List-Id: linux-mmc@vger.kernel.org Add Runtime PM handlers to mmc, which calls mmc_power_save_host and mmc_power_restore_host in respond to runtime_suspend and runtime_resume events. Runtime PM is still disabled by default, so this patch alone has no immediate effect. Signed-off-by: Ohad Ben-Cohen --- drivers/mmc/core/bus.c | 35 +++++++++++++++++++++++++++++++++++ 1 files changed, 35 insertions(+), 0 deletions(-) diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 49d9dca..27902b4 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include @@ -137,6 +138,39 @@ static int mmc_bus_resume(struct device *dev) return ret; } +static int mmc_runtime_suspend(struct device *dev) +{ + int status = 0; + struct mmc_card *card = dev_to_mmc_card(dev); + + mmc_power_save_host(card->host); + + return status; +} + +static int mmc_runtime_resume(struct device *dev) +{ + int status = 0; + struct mmc_card *card = dev_to_mmc_card(dev); + + mmc_power_restore_host(card->host); + + return status; +} + +static int mmc_runtime_idle(struct device *dev) +{ + struct mmc_card *card = dev_to_mmc_card(dev); + + return pm_runtime_suspend(dev); +} + +static const struct dev_pm_ops mmc_bus_pm_ops = { + .runtime_suspend = mmc_runtime_suspend, + .runtime_resume = mmc_runtime_resume, + .runtime_idle = mmc_runtime_idle, +}; + static struct bus_type mmc_bus_type = { .name = "mmc", .dev_attrs = mmc_dev_attrs, @@ -146,6 +180,7 @@ static struct bus_type mmc_bus_type = { .remove = mmc_bus_remove, .suspend = mmc_bus_suspend, .resume = mmc_bus_resume, + .pm = &mmc_bus_pm_ops, }; int mmc_register_bus(void) -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 From: ohad@wizery.com (Ohad Ben-Cohen) Date: Wed, 11 Aug 2010 16:19:27 +0300 Subject: [RFC/PATCH 3/6] mmc: add general runtime PM support In-Reply-To: <1281532770-27545-1-git-send-email-ohad@wizery.com> References: <1281532770-27545-1-git-send-email-ohad@wizery.com> Message-ID: <1281532770-27545-4-git-send-email-ohad@wizery.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Add Runtime PM handlers to mmc, which calls mmc_power_save_host and mmc_power_restore_host in respond to runtime_suspend and runtime_resume events. Runtime PM is still disabled by default, so this patch alone has no immediate effect. Signed-off-by: Ohad Ben-Cohen --- drivers/mmc/core/bus.c | 35 +++++++++++++++++++++++++++++++++++ 1 files changed, 35 insertions(+), 0 deletions(-) diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 49d9dca..27902b4 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include @@ -137,6 +138,39 @@ static int mmc_bus_resume(struct device *dev) return ret; } +static int mmc_runtime_suspend(struct device *dev) +{ + int status = 0; + struct mmc_card *card = dev_to_mmc_card(dev); + + mmc_power_save_host(card->host); + + return status; +} + +static int mmc_runtime_resume(struct device *dev) +{ + int status = 0; + struct mmc_card *card = dev_to_mmc_card(dev); + + mmc_power_restore_host(card->host); + + return status; +} + +static int mmc_runtime_idle(struct device *dev) +{ + struct mmc_card *card = dev_to_mmc_card(dev); + + return pm_runtime_suspend(dev); +} + +static const struct dev_pm_ops mmc_bus_pm_ops = { + .runtime_suspend = mmc_runtime_suspend, + .runtime_resume = mmc_runtime_resume, + .runtime_idle = mmc_runtime_idle, +}; + static struct bus_type mmc_bus_type = { .name = "mmc", .dev_attrs = mmc_dev_attrs, @@ -146,6 +180,7 @@ static struct bus_type mmc_bus_type = { .remove = mmc_bus_remove, .suspend = mmc_bus_suspend, .resume = mmc_bus_resume, + .pm = &mmc_bus_pm_ops, }; int mmc_register_bus(void) -- 1.7.0.4