diff options
Diffstat (limited to 'target/linux/sunxi/patches-3.13/160-9-ahci-plat-libraryise-suspend-resume.patch')
| -rw-r--r-- | target/linux/sunxi/patches-3.13/160-9-ahci-plat-libraryise-suspend-resume.patch | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/target/linux/sunxi/patches-3.13/160-9-ahci-plat-libraryise-suspend-resume.patch b/target/linux/sunxi/patches-3.13/160-9-ahci-plat-libraryise-suspend-resume.patch deleted file mode 100644 index 49ddac0..0000000 --- a/target/linux/sunxi/patches-3.13/160-9-ahci-plat-libraryise-suspend-resume.patch +++ /dev/null @@ -1,188 +0,0 @@ -From 041cf8356a4eb91ee8118004b2bc9c78cdd7866c Mon Sep 17 00:00:00 2001 -From: Hans de Goede <hdegoede@redhat.com> -Date: Mon, 20 Jan 2014 15:52:07 +0100 -Subject: [PATCH] ahci-platform: "Library-ise" suspend / resume functionality - -Split suspend / resume code into host suspend / resume functionality and -resource enable / disabling phases, and export the new suspend_ / resume_host -functions. - -Signed-off-by: Hans de Goede <hdegoede@redhat.com> ---- - drivers/ata/ahci_platform.c | 109 ++++++++++++++++++++++++++++++++++++------ - include/linux/ahci_platform.h | 5 ++ - 2 files changed, 99 insertions(+), 15 deletions(-) - -diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c -index 7f3f2ac..bdadec1 100644 ---- a/drivers/ata/ahci_platform.c -+++ b/drivers/ata/ahci_platform.c -@@ -452,14 +452,26 @@ static void ahci_host_stop(struct ata_host *host) - } - - #ifdef CONFIG_PM_SLEEP --static int ahci_suspend(struct device *dev) -+/** -+ * ahci_platform_suspend_host - Suspend an ahci-platform host -+ * @dev: device pointer for the host -+ * -+ * This function does all the usual steps needed to suspend an -+ * ahci-platform host, note any necessary resources (ie clks, phy, etc.) -+ * must be disabled after calling this. -+ * -+ * LOCKING: -+ * None. -+ * -+ * RETURNS: -+ * 0 on success otherwise a negative error code -+ */ -+int ahci_platform_suspend_host(struct device *dev) - { -- struct ahci_platform_data *pdata = dev_get_platdata(dev); - struct ata_host *host = dev_get_drvdata(dev); - struct ahci_host_priv *hpriv = host->private_data; - void __iomem *mmio = hpriv->mmio; - u32 ctl; -- int rc; - - if (hpriv->flags & AHCI_HFLAG_NO_SUSPEND) { - dev_err(dev, "firmware update required for suspend/resume\n"); -@@ -476,7 +488,64 @@ static int ahci_suspend(struct device *dev) - writel(ctl, mmio + HOST_CTL); - readl(mmio + HOST_CTL); /* flush */ - -- rc = ata_host_suspend(host, PMSG_SUSPEND); -+ return ata_host_suspend(host, PMSG_SUSPEND); -+} -+EXPORT_SYMBOL_GPL(ahci_platform_suspend_host); -+ -+/** -+ * ahci_platform_resume_host - Resume an ahci-platform host -+ * @dev: device pointer for the host -+ * -+ * This function does all the usual steps needed to resume an -+ * ahci-platform host, note any necessary resources (ie clks, phy, etc.) -+ * must be initialized / enabled before calling this. -+ * -+ * LOCKING: -+ * None. -+ * -+ * RETURNS: -+ * 0 on success otherwise a negative error code -+ */ -+int ahci_platform_resume_host(struct device *dev) -+{ -+ struct ata_host *host = dev_get_drvdata(dev); -+ int rc; -+ -+ if (dev->power.power_state.event == PM_EVENT_SUSPEND) { -+ rc = ahci_reset_controller(host); -+ if (rc) -+ return rc; -+ -+ ahci_init_controller(host); -+ } -+ -+ ata_host_resume(host); -+ -+ return 0; -+} -+EXPORT_SYMBOL_GPL(ahci_platform_resume_host); -+ -+/** -+ * ahci_platform_suspend - Suspend an ahci-platform device -+ * @dev: the platform device to suspend -+ * -+ * This function suspends the host associated with the device, followed -+ * by disabling all the resources of the device. -+ * -+ * LOCKING: -+ * None. -+ * -+ * RETURNS: -+ * 0 on success otherwise a negative error code -+ */ -+int ahci_platform_suspend(struct device *dev) -+{ -+ struct ahci_platform_data *pdata = dev_get_platdata(dev); -+ struct ata_host *host = dev_get_drvdata(dev); -+ struct ahci_host_priv *hpriv = host->private_data; -+ int rc; -+ -+ rc = ahci_platform_suspend_host(dev); - if (rc) - return rc; - -@@ -487,8 +556,22 @@ static int ahci_suspend(struct device *dev) - - return 0; - } -+EXPORT_SYMBOL_GPL(ahci_platform_suspend); - --static int ahci_resume(struct device *dev) -+/** -+ * ahci_platform_resume - Resume an ahci-platform device -+ * @dev: the platform device to resume -+ * -+ * This function enables all the resources of the device followed by -+ * resuming the host associated with the device. -+ * -+ * LOCKING: -+ * None. -+ * -+ * RETURNS: -+ * 0 on success otherwise a negative error code -+ */ -+int ahci_platform_resume(struct device *dev) - { - struct ahci_platform_data *pdata = dev_get_platdata(dev); - struct ata_host *host = dev_get_drvdata(dev); -@@ -505,15 +588,9 @@ static int ahci_resume(struct device *dev) - goto disable_resources; - } - -- if (dev->power.power_state.event == PM_EVENT_SUSPEND) { -- rc = ahci_reset_controller(host); -- if (rc) -- goto disable_resources; -- -- ahci_init_controller(host); -- } -- -- ata_host_resume(host); -+ rc = ahci_platform_resume_host(dev); -+ if (rc) -+ goto disable_resources; - - return 0; - -@@ -522,9 +599,11 @@ static int ahci_resume(struct device *dev) - - return rc; - } -+EXPORT_SYMBOL_GPL(ahci_platform_resume); - #endif - --static SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_suspend, ahci_resume); -+static SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_platform_suspend, -+ ahci_platform_resume); - - static const struct of_device_id ahci_of_match[] = { - { .compatible = "snps,spear-ahci", }, -diff --git a/include/linux/ahci_platform.h b/include/linux/ahci_platform.h -index b80c51c..542f268 100644 ---- a/include/linux/ahci_platform.h -+++ b/include/linux/ahci_platform.h -@@ -50,4 +50,9 @@ int ahci_platform_init_host(struct platform_device *pdev, - unsigned int force_port_map, - unsigned int mask_port_map); - -+int ahci_platform_suspend_host(struct device *dev); -+int ahci_platform_resume_host(struct device *dev); -+int ahci_platform_suspend(struct device *dev); -+int ahci_platform_resume(struct device *dev); -+ - #endif /* _AHCI_PLATFORM_H */ --- -1.8.5.5 - |