From: Domen Puncer <domen.puncer@telargo•com>
To: Grant Likely <grant.likely@secretlab•ca>
Cc: linuxppc-embedded@ozlabs•org
Subject: [PATCH 3/5 v2] mpc52xx suspend: USB
Date: Thu, 22 Mar 2007 08:44:43 +0100 [thread overview]
Message-ID: <20070322074443.GB4620@moe.telargo.com> (raw)
In-Reply-To: <528646bc0703150624i2bac5ce4n7beebc88d8acbafe@mail.gmail.com>
Trivial suspend and resume OF OHCI.
On MPC52xx turn off and on power to ports.
Signed-off-by: Domen Puncer <domen.puncer@telargo•com>
---
drivers/usb/host/ohci-ppc-of.c | 30 ++++++++++++++++++++++++++++--
1 file changed, 28 insertions(+), 2 deletions(-)
Index: grant.git/drivers/usb/host/ohci-ppc-of.c
===================================================================
--- grant.git.orig/drivers/usb/host/ohci-ppc-of.c
+++ grant.git/drivers/usb/host/ohci-ppc-of.c
@@ -214,6 +214,32 @@ MODULE_DEVICE_TABLE(of, ohci_hcd_ppc_of_
#endif
+#ifdef CONFIG_PM
+static u32 descr_a;
+static int ohci_hcd_ppc_soc_drv_suspend(struct of_device *op,
+ pm_message_t state)
+{
+ struct usb_hcd *hcd = dev_get_drvdata(&op->dev);
+ if (machine_is_compatible("generic-mpc5200")) {
+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+
+ descr_a = in_be32(&ohci->regs->roothub.a);
+ out_be32(&ohci->regs->roothub.a, (descr_a & ~0x200) | 0x100);
+ }
+ return 0;
+}
+static int ohci_hcd_ppc_soc_drv_resume(struct of_device *op)
+{
+ struct usb_hcd *hcd = dev_get_drvdata(&op->dev);
+ if (machine_is_compatible("generic-mpc5200")) {
+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+
+ out_be32(&ohci->regs->roothub.a, descr_a);
+ }
+ return 0;
+}
+#endif
+
static struct of_platform_driver ohci_hcd_ppc_of_driver = {
.name = "ppc-of-ohci",
.match_table = ohci_hcd_ppc_of_match,
@@ -221,8 +247,8 @@ static struct of_platform_driver ohci_hc
.remove = ohci_hcd_ppc_of_remove,
.shutdown = ohci_hcd_ppc_of_shutdown,
#ifdef CONFIG_PM
- /*.suspend = ohci_hcd_ppc_soc_drv_suspend,*/
- /*.resume = ohci_hcd_ppc_soc_drv_resume,*/
+ .suspend = ohci_hcd_ppc_soc_drv_suspend,
+ .resume = ohci_hcd_ppc_soc_drv_resume,
#endif
.driver = {
.name = "ppc-of-ohci",
next prev parent reply other threads:[~2007-03-22 7:44 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-15 10:39 [PATCH 0/5 v2] MPC5200 and Lite5200b low power modes Domen Puncer
2007-03-15 10:41 ` [PATCH 1/5] mpc52xx suspend: UART Domen Puncer
2007-03-15 10:41 ` [PATCH 2/5] mpc52xx suspend: FEC (ethernet) Domen Puncer
2007-03-15 13:35 ` Grant Likely
2007-03-15 10:42 ` [PATCH 3/5] mpc52xx suspend: USB Domen Puncer
2007-03-15 13:24 ` Grant Likely
2007-03-15 14:37 ` Wrong board info for ML403 Leonid
2007-03-16 8:15 ` Andrei Konovalov
2007-03-22 7:44 ` Domen Puncer [this message]
2007-03-23 11:56 ` [PATCH 3/5 v2] mpc52xx suspend: USB Sylvain Munaut
2007-03-23 16:00 ` Grant Likely
2007-03-15 10:43 ` [PATCH 4/5] mpc52xx suspend: deep-sleep Domen Puncer
2007-03-23 15:58 ` Grant Likely
2007-04-04 7:37 ` Domen Puncer
2007-04-16 5:40 ` Grant Likely
2007-04-17 7:05 ` Domen Puncer
2007-04-17 7:10 ` Grant Likely
2007-03-15 10:44 ` [PATCH] icecube/lite5200b: wakeup from low-power support Domen Puncer
2007-03-26 16:08 ` Grant Likely
2007-04-03 8:46 ` Domen Puncer
2007-04-16 4:45 ` Grant Likely
2007-04-16 6:25 ` Domen Puncer
2007-03-31 17:20 ` Rafal Jaworowski
2007-03-31 18:38 ` Domen Puncer
2007-03-15 10:44 ` [PATCH 5/5] lite5200b suspend: low-power mode Domen Puncer
2007-03-15 14:09 ` Grant Likely
2007-03-15 16:36 ` Domen Puncer
2007-03-22 7:41 ` Domen Puncer
2007-03-26 13:23 ` Domen Puncer
2007-03-26 15:54 ` Grant Likely
2007-04-17 7:11 ` Domen Puncer
2007-04-17 7:25 ` Grant Likely
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