From ddcb01ff9bf49c4dbbb058423559f7bc90b89374 Mon Sep 17 00:00:00 2001 From: Geoff Levand Date: Fri, 31 Oct 2008 13:52:54 -0700 Subject: USB: Fix PS3 USB shutdown problems Add ehci_shutdown() or ohci_shutdown() calls to the USB PS3 bus glue. ehci_shutdown() and ohci_shutdown() do some controller specific cleanups not done by usb_remove_hcd(). Fixes errors on shutdown or reboot similar to these: ps3-ehci-driver sb_07: HC died; cleaning up irq 51: nobody cared (try booting with the "irqpoll" option) Related bugzilla reports: http://bugzilla.kernel.org/show_bug.cgi?id=11819 http://bugzilla.terrasoftsolutions.com/show_bug.cgi?id=317 Signed-off-by: Geoff Levand Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-ps3.c | 1 + drivers/usb/host/ohci-ps3.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/usb/host') diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c index 0eba894bcb01..9c9da35abc6c 100644 --- a/drivers/usb/host/ehci-ps3.c +++ b/drivers/usb/host/ehci-ps3.c @@ -205,6 +205,7 @@ static int ps3_ehci_remove(struct ps3_system_bus_device *dev) tmp = hcd->irq; + ehci_shutdown(hcd); usb_remove_hcd(hcd); ps3_system_bus_set_driver_data(dev, NULL); diff --git a/drivers/usb/host/ohci-ps3.c b/drivers/usb/host/ohci-ps3.c index 2089d8a46c4b..3c1a3b5f89f1 100644 --- a/drivers/usb/host/ohci-ps3.c +++ b/drivers/usb/host/ohci-ps3.c @@ -192,7 +192,7 @@ fail_start: return result; } -static int ps3_ohci_remove (struct ps3_system_bus_device *dev) +static int ps3_ohci_remove(struct ps3_system_bus_device *dev) { unsigned int tmp; struct usb_hcd *hcd = @@ -205,6 +205,7 @@ static int ps3_ohci_remove (struct ps3_system_bus_device *dev) tmp = hcd->irq; + ohci_shutdown(hcd); usb_remove_hcd(hcd); ps3_system_bus_set_driver_data(dev, NULL); -- cgit v1.2.3 From ff30bf1ca4b548c0928dae6bfce89458b95e5bf4 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Sun, 2 Nov 2008 15:25:42 +0100 Subject: USB: remove optional bus bindings in isp1760, fixing runtime warning Roland Reported the following: | kmem_cache_create: duplicate cache isp1760_qtd | Pid: 461, comm: modprobe Tainted: G W 2.6.28-rc2-git3-default #4 | Call Trace: | [] kmem_cache_create+0xc9/0x3a3 | [] free_pages_bulk+0x16c/0x1c9 | [] isp1760_init+0x0/0xb [isp1760] | [] init_kmem_once+0x18/0x5f [isp1760] | [] isp1760_init+0x5/0xb [isp1760] | [] _stext+0x4d/0x148 | [] load_module+0x12cd/0x142e | [] kmem_cache_destroy+0x0/0xd7 | [] sys_init_module+0x87/0x176 | [] sysenter_do_call+0x12/0x2f The reason, is that ret is initialized with ENODEV instead of 0 _or_ the kmem cache is not freed in error case with no bus binding. The difference between OF+PCI and OF only is | 15148 804 32 15984 3e70 isp1760-of-pci.o | 13748 676 8 14432 3860 isp1760-of.o about 1.5 KiB. Until there is a checkbox where the user *must* select atleast one item, and may select multiple entries I don't make it selectable anymore. Having a driver which can't be used under any circumstances is broken anyway and I've seen distros shipping it that way. Reported-by: Roland Kletzing Signed-off-by: Sebastian Andrzej Siewior a Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/Kconfig | 23 ++++++----------------- drivers/usb/host/isp1760-if.c | 22 +++++++++++----------- 2 files changed, 17 insertions(+), 28 deletions(-) (limited to 'drivers/usb/host') diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 56f592dc0b36..f3a75a929e0a 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -110,29 +110,18 @@ config USB_ISP116X_HCD config USB_ISP1760_HCD tristate "ISP 1760 HCD support" - depends on USB && EXPERIMENTAL + depends on USB && EXPERIMENTAL && (PCI || PPC_OF) ---help--- The ISP1760 chip is a USB 2.0 host controller. This driver does not support isochronous transfers or OTG. + This USB controller is usually attached to a non-DMA-Master + capable bus. NXP's eval kit brings this chip on PCI card + where the chip itself is behind a PLB to simulate such + a bus. To compile this driver as a module, choose M here: the - module will be called isp1760-hcd. - -config USB_ISP1760_PCI - bool "Support for the PCI bus" - depends on USB_ISP1760_HCD && PCI - ---help--- - Enables support for the device present on the PCI bus. - This should only be required if you happen to have the eval kit from - NXP and you are going to test it. - -config USB_ISP1760_OF - bool "Support for the OF platform bus" - depends on USB_ISP1760_HCD && PPC_OF - ---help--- - Enables support for the device present on the PowerPC - OpenFirmware platform bus. + module will be called isp1760. config USB_OHCI_HCD tristate "OHCI HCD support" diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c index af849f596135..b87ca7cf4b37 100644 --- a/drivers/usb/host/isp1760-if.c +++ b/drivers/usb/host/isp1760-if.c @@ -14,16 +14,16 @@ #include "../core/hcd.h" #include "isp1760-hcd.h" -#ifdef CONFIG_USB_ISP1760_OF +#ifdef CONFIG_PPC_OF #include #include #endif -#ifdef CONFIG_USB_ISP1760_PCI +#ifdef CONFIG_PCI #include #endif -#ifdef CONFIG_USB_ISP1760_OF +#ifdef CONFIG_PPC_OF static int of_isp1760_probe(struct of_device *dev, const struct of_device_id *match) { @@ -128,7 +128,7 @@ static struct of_platform_driver isp1760_of_driver = { }; #endif -#ifdef CONFIG_USB_ISP1760_PCI +#ifdef CONFIG_PCI static u32 nxp_pci_io_base; static u32 iolength; static u32 pci_mem_phy0; @@ -288,28 +288,28 @@ static struct pci_driver isp1761_pci_driver = { static int __init isp1760_init(void) { - int ret = -ENODEV; + int ret; init_kmem_once(); -#ifdef CONFIG_USB_ISP1760_OF +#ifdef CONFIG_PPC_OF ret = of_register_platform_driver(&isp1760_of_driver); if (ret) { deinit_kmem_cache(); return ret; } #endif -#ifdef CONFIG_USB_ISP1760_PCI +#ifdef CONFIG_PCI ret = pci_register_driver(&isp1761_pci_driver); if (ret) goto unreg_of; #endif return ret; -#ifdef CONFIG_USB_ISP1760_PCI +#ifdef CONFIG_PCI unreg_of: #endif -#ifdef CONFIG_USB_ISP1760_OF +#ifdef CONFIG_PPC_OF of_unregister_platform_driver(&isp1760_of_driver); #endif deinit_kmem_cache(); @@ -319,10 +319,10 @@ module_init(isp1760_init); static void __exit isp1760_exit(void) { -#ifdef CONFIG_USB_ISP1760_OF +#ifdef CONFIG_PPC_OF of_unregister_platform_driver(&isp1760_of_driver); #endif -#ifdef CONFIG_USB_ISP1760_PCI +#ifdef CONFIG_PCI pci_unregister_driver(&isp1761_pci_driver); #endif deinit_kmem_cache(); -- cgit v1.2.3 From 5863964608489f6dbf4b5f3118b45b3750a8274d Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Tue, 11 Nov 2008 16:47:21 +0900 Subject: usb: r8a66597-hcd: fix wrong data access in SuperH on-chip USB When I used SuperH on-chip USB, there was the problem that accessed r8a66597_root_hub which was not allocated. Signed-off-by: Yoshihiro Shimoda Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/r8a66597-hcd.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/usb/host') diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index c18d8790c410..2376f24f3c83 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -1763,11 +1763,12 @@ static void r8a66597_timer(unsigned long _r8a66597) { struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; unsigned long flags; + int port; spin_lock_irqsave(&r8a66597->lock, flags); - r8a66597_root_hub_control(r8a66597, 0); - r8a66597_root_hub_control(r8a66597, 1); + for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) + r8a66597_root_hub_control(r8a66597, port); spin_unlock_irqrestore(&r8a66597->lock, flags); } -- cgit v1.2.3 From 67b2e029743a52670d77864723b4d0d40f7733b5 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 12 Nov 2008 17:04:53 -0500 Subject: USB: EHCI: fix handling of dead controllers This patch (as1165) makes a few small changes in the logic used by ehci-hcd when it encounters a controller error: Instead of printing out the masked status, it prints the original status as read directly from the hardware. It doesn't check for the STS_HALT status bit before taking action. The mere fact that the STS_FATAL bit is set means that something bad has happened and the controller needs to be reset. With the old code this test could never succeed because the STS_HALT bit was masked out from the status. I anticipate that this will prevent the occasional "irq X: nobody cared" problem people encounter when their EHCI controllers die. Signed-off-by: Alan Stern Cc: David Brownell Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-hcd.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) (limited to 'drivers/usb/host') diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 15a803b206b8..4725d15d096f 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -643,7 +643,7 @@ static int ehci_run (struct usb_hcd *hcd) static irqreturn_t ehci_irq (struct usb_hcd *hcd) { struct ehci_hcd *ehci = hcd_to_ehci (hcd); - u32 status, pcd_status = 0, cmd; + u32 status, masked_status, pcd_status = 0, cmd; int bh; spin_lock (&ehci->lock); @@ -656,14 +656,14 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) goto dead; } - status &= INTR_MASK; - if (!status) { /* irq sharing? */ + masked_status = status & INTR_MASK; + if (!masked_status) { /* irq sharing? */ spin_unlock(&ehci->lock); return IRQ_NONE; } /* clear (just) interrupts */ - ehci_writel(ehci, status, &ehci->regs->status); + ehci_writel(ehci, masked_status, &ehci->regs->status); cmd = ehci_readl(ehci, &ehci->regs->command); bh = 0; @@ -734,18 +734,17 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) /* PCI errors [4.15.2.4] */ if (unlikely ((status & STS_FATAL) != 0)) { + ehci_err(ehci, "fatal error\n"); dbg_cmd(ehci, "fatal", cmd); dbg_status(ehci, "fatal", status); - if (status & STS_HALT) { - ehci_err (ehci, "fatal error\n"); + ehci_halt(ehci); dead: - ehci_reset (ehci); - ehci_writel(ehci, 0, &ehci->regs->configured_flag); - /* generic layer kills/unlinks all urbs, then - * uses ehci_stop to clean up the rest - */ - bh = 1; - } + ehci_reset(ehci); + ehci_writel(ehci, 0, &ehci->regs->configured_flag); + /* generic layer kills/unlinks all urbs, then + * uses ehci_stop to clean up the rest + */ + bh = 1; } if (bh) -- cgit v1.2.3 From 372dd6e8ed924e876f3beb598721e813ad7fa323 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 12 Nov 2008 17:02:57 -0500 Subject: USB: EHCI: fix divide-by-zero bug This patch (as1164) fixes a bug in the EHCI scheduler. The interval value it uses is already in linear format, not logarithmically coded. The existing code can sometimes crash the system by trying to divide by zero. Signed-off-by: Alan Stern Cc: David Brownell Cc: Stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-sched.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/usb/host') diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index 4a0c5a78b2ed..a081ee65bde6 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -918,7 +918,7 @@ iso_stream_init ( */ stream->usecs = HS_USECS_ISO (maxp); bandwidth = stream->usecs * 8; - bandwidth /= 1 << (interval - 1); + bandwidth /= interval; } else { u32 addr; @@ -951,7 +951,7 @@ iso_stream_init ( } else stream->raw_mask = smask_out [hs_transfers - 1]; bandwidth = stream->usecs + stream->c_usecs; - bandwidth /= 1 << (interval + 2); + bandwidth /= interval << 3; /* stream->splits gets created from raw_mask later */ stream->address = cpu_to_hc32(ehci, addr); -- cgit v1.2.3