From 2f839823382748664b643daa73f41ee0cc01ced6 Mon Sep 17 00:00:00 2001 From: Karoly Pados Date: Sat, 9 Jun 2018 13:26:08 +0200 Subject: USB: serial: cp210x: add Silicon Labs IDs for Windows Update Silicon Labs defines alternative VID/PID pairs for some chips that when used will automatically install drivers for Windows users without manual intervention. Unfortunately, these IDs are not recognized by the Linux module, so using these IDs improves user experience on one platform but degrades it on Linux. This patch addresses this problem. Signed-off-by: Karoly Pados Cc: stable Signed-off-by: Johan Hovold --- drivers/usb/serial/cp210x.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index eb6c26cbe579..14cf657247b6 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -143,8 +143,11 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x10C4, 0x8B34) }, /* Qivicon ZigBee USB Radio Stick */ { USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */ { USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */ + { USB_DEVICE(0x10C4, 0xEA63) }, /* Silicon Labs Windows Update (CP2101-4/CP2102N) */ { USB_DEVICE(0x10C4, 0xEA70) }, /* Silicon Labs factory default */ { USB_DEVICE(0x10C4, 0xEA71) }, /* Infinity GPS-MIC-1 Radio Monophone */ + { USB_DEVICE(0x10C4, 0xEA7A) }, /* Silicon Labs Windows Update (CP2105) */ + { USB_DEVICE(0x10C4, 0xEA7B) }, /* Silicon Labs Windows Update (CP2108) */ { USB_DEVICE(0x10C4, 0xF001) }, /* Elan Digital Systems USBscope50 */ { USB_DEVICE(0x10C4, 0xF002) }, /* Elan Digital Systems USBwave12 */ { USB_DEVICE(0x10C4, 0xF003) }, /* Elan Digital Systems USBpulse100 */ -- cgit v1.2.3 From 24160628a34af962ac99f2f58e547ac3c4cbd26f Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 18 Jun 2018 10:24:03 +0200 Subject: USB: serial: cp210x: add CESINEL device ids Add device ids for CESINEL products. Reported-by: Carlos Barcala Lara Cc: stable Signed-off-by: Johan Hovold --- drivers/usb/serial/cp210x.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 14cf657247b6..ee0cc1d90b51 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -95,6 +95,9 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x10C4, 0x8156) }, /* B&G H3000 link cable */ { USB_DEVICE(0x10C4, 0x815E) }, /* Helicomm IP-Link 1220-DVM */ { USB_DEVICE(0x10C4, 0x815F) }, /* Timewave HamLinkUSB */ + { USB_DEVICE(0x10C4, 0x817C) }, /* CESINEL MEDCAL N Power Quality Monitor */ + { USB_DEVICE(0x10C4, 0x817D) }, /* CESINEL MEDCAL NT Power Quality Monitor */ + { USB_DEVICE(0x10C4, 0x817E) }, /* CESINEL MEDCAL S Power Quality Monitor */ { USB_DEVICE(0x10C4, 0x818B) }, /* AVIT Research USB to TTL */ { USB_DEVICE(0x10C4, 0x819F) }, /* MJS USB Toslink Switcher */ { USB_DEVICE(0x10C4, 0x81A6) }, /* ThinkOptics WavIt */ @@ -112,6 +115,9 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x10C4, 0x826B) }, /* Cygnal Integrated Products, Inc., Fasttrax GPS demonstration module */ { USB_DEVICE(0x10C4, 0x8281) }, /* Nanotec Plug & Drive */ { USB_DEVICE(0x10C4, 0x8293) }, /* Telegesis ETRX2USB */ + { USB_DEVICE(0x10C4, 0x82EF) }, /* CESINEL FALCO 6105 AC Power Supply */ + { USB_DEVICE(0x10C4, 0x82F1) }, /* CESINEL MEDCAL EFD Earth Fault Detector */ + { USB_DEVICE(0x10C4, 0x82F2) }, /* CESINEL MEDCAL ST Network Analyzer */ { USB_DEVICE(0x10C4, 0x82F4) }, /* Starizona MicroTouch */ { USB_DEVICE(0x10C4, 0x82F9) }, /* Procyon AVS */ { USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */ @@ -124,7 +130,9 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x10C4, 0x8470) }, /* Juniper Networks BX Series System Console */ { USB_DEVICE(0x10C4, 0x8477) }, /* Balluff RFID */ { USB_DEVICE(0x10C4, 0x84B6) }, /* Starizona Hyperion */ + { USB_DEVICE(0x10C4, 0x851E) }, /* CESINEL MEDCAL PT Network Analyzer */ { USB_DEVICE(0x10C4, 0x85A7) }, /* LifeScan OneTouch Verio IQ */ + { USB_DEVICE(0x10C4, 0x85B8) }, /* CESINEL ReCon T Energy Logger */ { USB_DEVICE(0x10C4, 0x85EA) }, /* AC-Services IBUS-IF */ { USB_DEVICE(0x10C4, 0x85EB) }, /* AC-Services CIS-IBUS */ { USB_DEVICE(0x10C4, 0x85F8) }, /* Virtenio Preon32 */ @@ -134,10 +142,13 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x10C4, 0x8857) }, /* CEL EM357 ZigBee USB Stick */ { USB_DEVICE(0x10C4, 0x88A4) }, /* MMB Networks ZigBee USB Device */ { USB_DEVICE(0x10C4, 0x88A5) }, /* Planet Innovation Ingeni ZigBee USB Device */ + { USB_DEVICE(0x10C4, 0x88FB) }, /* CESINEL MEDCAL STII Network Analyzer */ + { USB_DEVICE(0x10C4, 0x8938) }, /* CESINEL MEDCAL S II Network Analyzer */ { USB_DEVICE(0x10C4, 0x8946) }, /* Ketra N1 Wireless Interface */ { USB_DEVICE(0x10C4, 0x8962) }, /* Brim Brothers charging dock */ { USB_DEVICE(0x10C4, 0x8977) }, /* CEL MeshWorks DevKit Device */ { USB_DEVICE(0x10C4, 0x8998) }, /* KCF Technologies PRN */ + { USB_DEVICE(0x10C4, 0x89A4) }, /* CESINEL FTBC Flexible Thyristor Bridge Controller */ { USB_DEVICE(0x10C4, 0x8A2A) }, /* HubZ dual ZigBee and Z-Wave dongle */ { USB_DEVICE(0x10C4, 0x8A5E) }, /* CEL EM3588 ZigBee USB Stick Long Range */ { USB_DEVICE(0x10C4, 0x8B34) }, /* Qivicon ZigBee USB Radio Stick */ -- cgit v1.2.3 From 00908693c481f7298adf8cf4d2ff3dfbea8c375f Mon Sep 17 00:00:00 2001 From: Heikki Krogerus Date: Thu, 15 Jun 2017 12:57:30 +0300 Subject: usb: dwc3: pci: add support for Intel IceLake PCI IDs for Intel IceLake. Signed-off-by: Heikki Krogerus Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/dwc3-pci.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index c961a94d136b..f57e7c94b8e5 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -34,6 +34,7 @@ #define PCI_DEVICE_ID_INTEL_GLK 0x31aa #define PCI_DEVICE_ID_INTEL_CNPLP 0x9dee #define PCI_DEVICE_ID_INTEL_CNPH 0xa36e +#define PCI_DEVICE_ID_INTEL_ICLLP 0x34ee #define PCI_INTEL_BXT_DSM_GUID "732b85d5-b7a7-4a1b-9ba0-4bbd00ffd511" #define PCI_INTEL_BXT_FUNC_PMU_PWR 4 @@ -289,6 +290,7 @@ static const struct pci_device_id dwc3_pci_id_table[] = { { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_GLK), }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CNPLP), }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CNPH), }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICLLP), }, { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB), }, { } /* Terminating Entry */ }; -- cgit v1.2.3 From d52e4d0c0c428bf2ba35074a7495cdb28e2efbae Mon Sep 17 00:00:00 2001 From: Vincent Pelletier Date: Wed, 13 Jun 2018 11:05:06 +0000 Subject: usb: gadget: ffs: Fix BUG when userland exits with submitted AIO transfers This bug happens only when the UDC needs to sleep during usb_ep_dequeue, as is the case for (at least) dwc3. [ 382.200896] BUG: scheduling while atomic: screen/1808/0x00000100 [ 382.207124] 4 locks held by screen/1808: [ 382.211266] #0: (rcu_callback){....}, at: [] rcu_process_callbacks+0x260/0x440 [ 382.219949] #1: (rcu_read_lock_sched){....}, at: [] percpu_ref_switch_to_atomic_rcu+0xb0/0x130 [ 382.230034] #2: (&(&ctx->ctx_lock)->rlock){....}, at: [] free_ioctx_users+0x23/0xd0 [ 382.230096] #3: (&(&ffs->eps_lock)->rlock){....}, at: [] ffs_aio_cancel+0x20/0x60 [usb_f_fs] [ 382.230160] Modules linked in: usb_f_fs libcomposite configfs bnep btsdio bluetooth ecdh_generic brcmfmac brcmutil intel_powerclamp coretemp dwc3 kvm_intel ulpi udc_core kvm irqbypass crc32_pclmul crc32c_intel pcbc dwc3_pci aesni_intel aes_i586 crypto_simd cryptd ehci_pci ehci_hcd gpio_keys usbcore basincove_gpadc industrialio usb_common [ 382.230407] CPU: 1 PID: 1808 Comm: screen Not tainted 4.14.0-edison+ #117 [ 382.230416] Hardware name: Intel Corporation Merrifield/BODEGA BAY, BIOS 542 2015.01.21:18.19.48 [ 382.230425] Call Trace: [ 382.230438] [ 382.230466] dump_stack+0x47/0x62 [ 382.230498] __schedule_bug+0x61/0x80 [ 382.230522] __schedule+0x43/0x7a0 [ 382.230587] schedule+0x5f/0x70 [ 382.230625] dwc3_gadget_ep_dequeue+0x14c/0x270 [dwc3] [ 382.230669] ? do_wait_intr_irq+0x70/0x70 [ 382.230724] usb_ep_dequeue+0x19/0x90 [udc_core] [ 382.230770] ffs_aio_cancel+0x37/0x60 [usb_f_fs] [ 382.230798] kiocb_cancel+0x31/0x40 [ 382.230822] free_ioctx_users+0x4d/0xd0 [ 382.230858] percpu_ref_switch_to_atomic_rcu+0x10a/0x130 [ 382.230881] ? percpu_ref_exit+0x40/0x40 [ 382.230904] rcu_process_callbacks+0x2b3/0x440 [ 382.230965] __do_softirq+0xf8/0x26b [ 382.231011] ? __softirqentry_text_start+0x8/0x8 [ 382.231033] do_softirq_own_stack+0x22/0x30 [ 382.231042] [ 382.231071] irq_exit+0x45/0xc0 [ 382.231089] smp_apic_timer_interrupt+0x13c/0x150 [ 382.231118] apic_timer_interrupt+0x35/0x3c [ 382.231132] EIP: __copy_user_ll+0xe2/0xf0 [ 382.231142] EFLAGS: 00210293 CPU: 1 [ 382.231154] EAX: bfd4508c EBX: 00000004 ECX: 00000003 EDX: f3d8fe50 [ 382.231165] ESI: f3d8fe51 EDI: bfd4508d EBP: f3d8fe14 ESP: f3d8fe08 [ 382.231176] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [ 382.231265] core_sys_select+0x25f/0x320 [ 382.231346] ? __wake_up_common_lock+0x62/0x80 [ 382.231399] ? tty_ldisc_deref+0x13/0x20 [ 382.231438] ? ldsem_up_read+0x1b/0x40 [ 382.231459] ? tty_ldisc_deref+0x13/0x20 [ 382.231479] ? tty_write+0x29f/0x2e0 [ 382.231514] ? n_tty_ioctl+0xe0/0xe0 [ 382.231541] ? tty_write_unlock+0x30/0x30 [ 382.231566] ? __vfs_write+0x22/0x110 [ 382.231604] ? security_file_permission+0x2f/0xd0 [ 382.231635] ? rw_verify_area+0xac/0x120 [ 382.231677] ? vfs_write+0x103/0x180 [ 382.231711] SyS_select+0x87/0xc0 [ 382.231739] ? SyS_write+0x42/0x90 [ 382.231781] do_fast_syscall_32+0xd6/0x1a0 [ 382.231836] entry_SYSENTER_32+0x47/0x71 [ 382.231848] EIP: 0xb7f75b05 [ 382.231857] EFLAGS: 00000246 CPU: 1 [ 382.231868] EAX: ffffffda EBX: 00000400 ECX: bfd4508c EDX: bfd4510c [ 382.231878] ESI: 00000000 EDI: 00000000 EBP: 00000000 ESP: bfd45020 [ 382.231889] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b [ 382.232281] softirq: huh, entered softirq 9 RCU c10b4d90 with preempt_count 00000100, exited with 00000000? Tested-by: Sam Protsenko Signed-off-by: Vincent Pelletier Signed-off-by: Felipe Balbi --- drivers/usb/gadget/function/f_fs.c | 26 ++++++++++++++++++-------- 1 file changed, 18 insertions(+), 8 deletions(-) diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index dce9d12c7981..33e2030503fa 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -215,6 +215,7 @@ struct ffs_io_data { struct mm_struct *mm; struct work_struct work; + struct work_struct cancellation_work; struct usb_ep *ep; struct usb_request *req; @@ -1072,22 +1073,31 @@ ffs_epfile_open(struct inode *inode, struct file *file) return 0; } +static void ffs_aio_cancel_worker(struct work_struct *work) +{ + struct ffs_io_data *io_data = container_of(work, struct ffs_io_data, + cancellation_work); + + ENTER(); + + usb_ep_dequeue(io_data->ep, io_data->req); +} + static int ffs_aio_cancel(struct kiocb *kiocb) { struct ffs_io_data *io_data = kiocb->private; - struct ffs_epfile *epfile = kiocb->ki_filp->private_data; + struct ffs_data *ffs = io_data->ffs; int value; ENTER(); - spin_lock_irq(&epfile->ffs->eps_lock); - - if (likely(io_data && io_data->ep && io_data->req)) - value = usb_ep_dequeue(io_data->ep, io_data->req); - else + if (likely(io_data && io_data->ep && io_data->req)) { + INIT_WORK(&io_data->cancellation_work, ffs_aio_cancel_worker); + queue_work(ffs->io_completion_wq, &io_data->cancellation_work); + value = -EINPROGRESS; + } else { value = -EINVAL; - - spin_unlock_irq(&epfile->ffs->eps_lock); + } return value; } -- cgit v1.2.3 From 3ec148ebe3112b40c9a2c0c543bcb0cd1a3abd43 Mon Sep 17 00:00:00 2001 From: Jaejoong Kim Date: Thu, 14 Jun 2018 18:56:31 +0900 Subject: doc: usb: Fix typo in gadget_configfs documentation Fix the directory name from 'configfs' to 'configs'. Signed-off-by: Jaejoong Kim Signed-off-by: Felipe Balbi --- Documentation/usb/gadget_configfs.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/usb/gadget_configfs.txt b/Documentation/usb/gadget_configfs.txt index 635e57493709..b8cb38a98c19 100644 --- a/Documentation/usb/gadget_configfs.txt +++ b/Documentation/usb/gadget_configfs.txt @@ -226,7 +226,7 @@ $ rm configs/./ where . specify the configuration and is a symlink to a function being removed from the configuration, e.g.: -$ rm configfs/c.1/ncm.usb0 +$ rm configs/c.1/ncm.usb0 ... ... -- cgit v1.2.3 From 1ffba9058737af2ddeebc813faa8ea9b16bc892a Mon Sep 17 00:00:00 2001 From: Minas Harutyunyan Date: Tue, 12 Jun 2018 12:37:29 +0400 Subject: usb: dwc2: gadget: Fix issue in dwc2_gadget_start_isoc() In case of requests queue is empty reset EP target_frame to initial value. This allow restarting ISOC traffic in case when function driver queued requests with interruptions. Tested-by: Zeng Tao Signed-off-by: Minas Harutyunyan Signed-off-by: Felipe Balbi --- drivers/usb/dwc2/gadget.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index f0d9ccf1d665..bb499fea6100 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -884,6 +884,7 @@ static void dwc2_gadget_start_isoc_ddma(struct dwc2_hsotg_ep *hs_ep) struct dwc2_dma_desc *desc; if (list_empty(&hs_ep->queue)) { + hs_ep->target_frame = TARGET_FRAME_INITIAL; dev_dbg(hsotg->dev, "%s: No requests in queue\n", __func__); return; } -- cgit v1.2.3 From 896e518883f18e601335908192e33426c1f599a4 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 31 May 2018 16:45:52 +0200 Subject: usb: dwc3: of-simple: fix use-after-free on remove The clocks have already been explicitly disabled and put as part of remove() so the runtime suspend callback must not be run when balancing the runtime PM usage count before returning. Fixes: 16adc674d0d6 ("usb: dwc3: add generic OF glue layer") Signed-off-by: Johan Hovold Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/dwc3-of-simple.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c index 6b3ccd542bd7..dbeff5e6ad14 100644 --- a/drivers/usb/dwc3/dwc3-of-simple.c +++ b/drivers/usb/dwc3/dwc3-of-simple.c @@ -165,8 +165,9 @@ static int dwc3_of_simple_remove(struct platform_device *pdev) reset_control_put(simple->resets); - pm_runtime_put_sync(dev); pm_runtime_disable(dev); + pm_runtime_put_noidle(dev); + pm_runtime_set_suspended(dev); return 0; } -- cgit v1.2.3 From 6e967d7e2c4822eba4847ec09037119a0418aaef Mon Sep 17 00:00:00 2001 From: Zeng Tao Date: Tue, 12 Jun 2018 22:49:06 +0800 Subject: usb: dwc2: gadget: fix packet drop issue in dwc2_gadget_handle_nak In ISOC transfer, when the NAK interrupt happens, we shouldn't complete a usb request, the current flow will complete one usb request with no hardware transfer, this will lead to a packet drop on the usb bus. Acked-by: Minas Harutyunyan Signed-off-by: Zeng Tao Signed-off-by: Felipe Balbi --- drivers/usb/dwc2/gadget.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index bb499fea6100..bb5eb3c8132d 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -2818,9 +2818,6 @@ static void dwc2_gadget_handle_nak(struct dwc2_hsotg_ep *hs_ep) tmp = dwc2_hsotg_read_frameno(hsotg); if (using_desc_dma(hsotg)) { - dwc2_hsotg_complete_request(hsotg, hs_ep, - get_ep_head(hs_ep), 0); - hs_ep->target_frame = tmp; dwc2_gadget_incr_frame_num(hs_ep); dwc2_gadget_start_isoc_ddma(hs_ep); -- cgit v1.2.3 From 615277779f41a753e68f531613e344c54fdc95bf Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 12 Jun 2018 10:24:48 +0200 Subject: usb: dwc3: Only call clk_bulk_get() on devicetree instantiated devices Commit fe8abf332b8f ("usb: dwc3: support clocks and resets for DWC3 core") adds support for handling clocks and resets in the DWC3 core, so that for platforms following the standard devicetree bindings this does not need to be duplicated in all the different glue layers. These changes intended for devicetree based platforms introduce an uncoditional clk_bulk_get() in the core probe path. This leads to the following error being logged on x86/ACPI systems: [ 26.276783] dwc3 dwc3.3.auto: Failed to get clk 'ref': -2 This commits wraps the clk_bulk_get() in an if (dev->of_node) check so that it only is done on devicetree instantiated devices, fixing this error. Cc: Masahiro Yamada Reviewed-by: Masahiro Yamada Signed-off-by: Hans de Goede Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/core.c | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index ea91310113b9..103807587dc6 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1272,7 +1272,6 @@ static int dwc3_probe(struct platform_device *pdev) if (!dwc->clks) return -ENOMEM; - dwc->num_clks = ARRAY_SIZE(dwc3_core_clks); dwc->dev = dev; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -1307,15 +1306,19 @@ static int dwc3_probe(struct platform_device *pdev) if (IS_ERR(dwc->reset)) return PTR_ERR(dwc->reset); - ret = clk_bulk_get(dev, dwc->num_clks, dwc->clks); - if (ret == -EPROBE_DEFER) - return ret; - /* - * Clocks are optional, but new DT platforms should support all clocks - * as required by the DT-binding. - */ - if (ret) - dwc->num_clks = 0; + if (dev->of_node) { + dwc->num_clks = ARRAY_SIZE(dwc3_core_clks); + + ret = clk_bulk_get(dev, dwc->num_clks, dwc->clks); + if (ret == -EPROBE_DEFER) + return ret; + /* + * Clocks are optional, but new DT platforms should support all + * clocks as required by the DT-binding. + */ + if (ret) + dwc->num_clks = 0; + } ret = reset_control_deassert(dwc->reset); if (ret) -- cgit v1.2.3 From 21cbbc6bb7b4ba6aee303a3b4aef1578253724d8 Mon Sep 17 00:00:00 2001 From: Minas Harutyunyan Date: Tue, 12 Jun 2018 12:27:36 +0400 Subject: usb: dwc2: gadget: fix packet drop issue for ISOC OUT transfers In ISOC OUT transfer, when the OUT token received while EP disabled, we shouldn't complete a usb request. The current flow completed one usb request, this will lead to a packet drop to function driver. Signed-off-by: Minas Harutyunyan Signed-off-by: Felipe Balbi --- drivers/usb/dwc2/gadget.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index bb5eb3c8132d..fa3b6f361074 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -2756,8 +2756,6 @@ static void dwc2_gadget_handle_out_token_ep_disabled(struct dwc2_hsotg_ep *ep) */ tmp = dwc2_hsotg_read_frameno(hsotg); - dwc2_hsotg_complete_request(hsotg, ep, get_ep_head(ep), 0); - if (using_desc_dma(hsotg)) { if (ep->target_frame == TARGET_FRAME_INITIAL) { /* Start first ISO Out */ -- cgit v1.2.3 From 93ef2dc0c4f7acf4253882a03c11f2ca8e41f387 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Wed, 6 Jun 2018 14:22:24 +0000 Subject: usb: dwc3: Fix error return code in dwc3_qcom_probe() Fix to return error code -ENODEV from the get device failed error handling case instead of 0, as done elsewhere in this function. Fixes: a4333c3a6ba9 ("usb: dwc3: Add Qualcomm DWC3 glue driver") Signed-off-by: Wei Yongjun Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/dwc3-qcom.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index b0e67ab2f98c..8854e428ae08 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -490,6 +490,7 @@ static int dwc3_qcom_probe(struct platform_device *pdev) qcom->dwc3 = of_find_device_by_node(dwc3_np); if (!qcom->dwc3) { dev_err(&pdev->dev, "failed to get dwc3 platform device\n"); + ret = -ENODEV; goto depopulate; } -- cgit v1.2.3 From 9925e6ebe5c2da9601037cca73462782900b9190 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 25 May 2018 18:06:20 +0200 Subject: usb: dwc3: qcom: mark PM functions as __maybe_unused The #ifdef guards around these are wrong, resulting in warnings in certain configurations: drivers/usb/dwc3/dwc3-qcom.c:244:12: error: 'dwc3_qcom_resume' defined but not used [-Werror=unused-function] static int dwc3_qcom_resume(struct dwc3_qcom *qcom) ^~~~~~~~~~~~~~~~ drivers/usb/dwc3/dwc3-qcom.c:223:12: error: 'dwc3_qcom_suspend' defined but not used [-Werror=unused-function] static int dwc3_qcom_suspend(struct dwc3_qcom *qcom) This replaces the guards with __maybe_unused annotations to shut up the warnings and give better compile time coverage. Fixes: a4333c3a6ba9 ("usb: dwc3: Add Qualcomm DWC3 glue driver") Reviewed-by: Douglas Anderson Acked-by: Geert Uytterhoeven Signed-off-by: Arnd Bergmann Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/dwc3-qcom.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 8854e428ae08..a6d0203e40b6 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -548,8 +548,7 @@ static int dwc3_qcom_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM_SLEEP -static int dwc3_qcom_pm_suspend(struct device *dev) +static int __maybe_unused dwc3_qcom_pm_suspend(struct device *dev) { struct dwc3_qcom *qcom = dev_get_drvdata(dev); int ret = 0; @@ -561,7 +560,7 @@ static int dwc3_qcom_pm_suspend(struct device *dev) return ret; } -static int dwc3_qcom_pm_resume(struct device *dev) +static int __maybe_unused dwc3_qcom_pm_resume(struct device *dev) { struct dwc3_qcom *qcom = dev_get_drvdata(dev); int ret; @@ -572,23 +571,20 @@ static int dwc3_qcom_pm_resume(struct device *dev) return ret; } -#endif -#ifdef CONFIG_PM -static int dwc3_qcom_runtime_suspend(struct device *dev) +static int __maybe_unused dwc3_qcom_runtime_suspend(struct device *dev) { struct dwc3_qcom *qcom = dev_get_drvdata(dev); return dwc3_qcom_suspend(qcom); } -static int dwc3_qcom_runtime_resume(struct device *dev) +static int __maybe_unused dwc3_qcom_runtime_resume(struct device *dev) { struct dwc3_qcom *qcom = dev_get_drvdata(dev); return dwc3_qcom_resume(qcom); } -#endif static const struct dev_pm_ops dwc3_qcom_dev_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(dwc3_qcom_pm_suspend, dwc3_qcom_pm_resume) -- cgit v1.2.3 From 22bb5cfdf13ae70c6a34508a16cfeee48f162443 Mon Sep 17 00:00:00 2001 From: Artur Petrosyan Date: Wed, 23 May 2018 09:26:08 -0400 Subject: usb: dwc2: Fix host exit from hibernation flow. In case when a hub is connected to DWC2 host auto suspend occurs and host goes to hibernation. When any device connected to hub host hibernation exiting incorrectly. - Added dwc2_hcd_rem_wakeup() function call to exit from suspend state by remote wakeup. - Increase timeout value for port suspend bit to be set. Acked-by: Minas Harutyunyan Signed-off-by: Artur Petrosyan Signed-off-by: Felipe Balbi --- drivers/usb/dwc2/hcd.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index edaf0b6af4f0..bae08a7d7abd 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -5435,7 +5435,7 @@ int dwc2_host_enter_hibernation(struct dwc2_hsotg *hsotg) dwc2_writel(hprt0, hsotg->regs + HPRT0); /* Wait for the HPRT0.PrtSusp register field to be set */ - if (dwc2_hsotg_wait_bit_set(hsotg, HPRT0, HPRT0_SUSP, 300)) + if (dwc2_hsotg_wait_bit_set(hsotg, HPRT0, HPRT0_SUSP, 3000)) dev_warn(hsotg->dev, "Suspend wasn't generated\n"); /* @@ -5616,6 +5616,8 @@ int dwc2_host_exit_hibernation(struct dwc2_hsotg *hsotg, int rem_wakeup, return ret; } + dwc2_hcd_rem_wakeup(hsotg); + hsotg->hibernated = 0; hsotg->bus_suspended = 0; hsotg->lx_state = DWC2_L0; -- cgit v1.2.3 From 8760675932ddb614e83702117d36ea644050c609 Mon Sep 17 00:00:00 2001 From: William Wu Date: Mon, 21 May 2018 18:12:00 +0800 Subject: usb: dwc2: fix the incorrect bitmaps for the ports of multi_tt hub The dwc2_get_ls_map() use ttport to reference into the bitmap if we're on a multi_tt hub. But the bitmaps index from 0 to (hub->maxchild - 1), while the ttport index from 1 to hub->maxchild. This will cause invalid memory access when the number of ttport is hub->maxchild. Without this patch, I can easily meet a Kernel panic issue if connect a low-speed USB mouse with the max port of FE2.1 multi-tt hub (1a40:0201) on rk3288 platform. Fixes: 9f9f09b048f5 ("usb: dwc2: host: Totally redo the microframe scheduler") Cc: Reviewed-by: Douglas Anderson Acked-by: Minas Harutyunyan hminas@synopsys.com> Signed-off-by: William Wu Signed-off-by: Felipe Balbi --- drivers/usb/dwc2/hcd_queue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/dwc2/hcd_queue.c b/drivers/usb/dwc2/hcd_queue.c index d7c3d6c776d8..9c55d1addba9 100644 --- a/drivers/usb/dwc2/hcd_queue.c +++ b/drivers/usb/dwc2/hcd_queue.c @@ -383,7 +383,7 @@ static unsigned long *dwc2_get_ls_map(struct dwc2_hsotg *hsotg, /* Get the map and adjust if this is a multi_tt hub */ map = qh->dwc_tt->periodic_bitmaps; if (qh->dwc_tt->usb_tt->multi) - map += DWC2_ELEMENTS_PER_LS_BITMAP * qh->ttport; + map += DWC2_ELEMENTS_PER_LS_BITMAP * (qh->ttport - 1); return map; } -- cgit v1.2.3 From af424a410749ed7e0c2bffd3cedbc7c274d0ff6f Mon Sep 17 00:00:00 2001 From: William Wu Date: Fri, 11 May 2018 17:46:31 +0800 Subject: usb: dwc2: alloc dma aligned buffer for isoc split in The commit 3bc04e28a030 ("usb: dwc2: host: Get aligned DMA in a more supported way") rips out a lot of code to simply the allocation of aligned DMA. However, it also introduces a new issue when use isoc split in transfer. In my test case, I connect the dwc2 controller with an usb hs Hub (GL852G-12), and plug an usb fs audio device (Plantronics headset) into the downstream port of Hub. Then use the usb mic to record, we can find noise when playback. It's because that the usb Hub uses an MDATA for the first transaction and a DATA0 for the second transaction for the isoc split in transaction. An typical isoc split in transaction sequence like this: - SSPLIT IN transaction - CSPLIT IN transaction - MDATA packet - CSPLIT IN transaction - DATA0 packet The DMA address of MDATA (urb->dma) is always DWORD-aligned, but the DMA address of DATA0 (urb->dma + qtd->isoc_split_offset) may not be DWORD-aligned, it depends on the qtd->isoc_split_offset (the length of MDATA). In my test case, the length of MDATA is usually unaligned, this cause DATA0 packet transmission error. This patch use kmem_cache to allocate aligned DMA buf for isoc split in transaction. Note that according to usb 2.0 spec, the maximum data payload size is 1023 bytes for each fs isoc ep, and the maximum allowable interrupt data payload size is 64 bytes or less for fs interrupt ep. So we set the size of object to be 1024 bytes in the kmem cache. Tested-by: Gevorg Sahakyan Tested-by: Heiko Stuebner Acked-by: Minas Harutyunyan hminas@synopsys.com> Signed-off-by: William Wu Reviewed-by: Douglas Anderson Signed-off-by: Felipe Balbi --- drivers/usb/dwc2/core.h | 3 ++ drivers/usb/dwc2/hcd.c | 89 +++++++++++++++++++++++++++++++++++++++++--- drivers/usb/dwc2/hcd.h | 8 ++++ drivers/usb/dwc2/hcd_intr.c | 8 ++++ drivers/usb/dwc2/hcd_queue.c | 3 ++ 5 files changed, 106 insertions(+), 5 deletions(-) diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h index 4a56ac772a3c..71b3b08ad516 100644 --- a/drivers/usb/dwc2/core.h +++ b/drivers/usb/dwc2/core.h @@ -1004,6 +1004,7 @@ struct dwc2_hregs_backup { * @frame_list_sz: Frame list size * @desc_gen_cache: Kmem cache for generic descriptors * @desc_hsisoc_cache: Kmem cache for hs isochronous descriptors + * @unaligned_cache: Kmem cache for DMA mode to handle non-aligned buf * * These are for peripheral mode: * @@ -1177,6 +1178,8 @@ struct dwc2_hsotg { u32 frame_list_sz; struct kmem_cache *desc_gen_cache; struct kmem_cache *desc_hsisoc_cache; + struct kmem_cache *unaligned_cache; +#define DWC2_KMEM_UNALIGNED_BUF_SIZE 1024 #endif /* CONFIG_USB_DWC2_HOST || CONFIG_USB_DWC2_DUAL_ROLE */ diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index bae08a7d7abd..b1104be3429c 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -1567,11 +1567,20 @@ static void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg, } if (hsotg->params.host_dma) { - dwc2_writel((u32)chan->xfer_dma, - hsotg->regs + HCDMA(chan->hc_num)); + dma_addr_t dma_addr; + + if (chan->align_buf) { + if (dbg_hc(chan)) + dev_vdbg(hsotg->dev, "align_buf\n"); + dma_addr = chan->align_buf; + } else { + dma_addr = chan->xfer_dma; + } + dwc2_writel((u32)dma_addr, hsotg->regs + HCDMA(chan->hc_num)); + if (dbg_hc(chan)) dev_vdbg(hsotg->dev, "Wrote %08lx to HCDMA(%d)\n", - (unsigned long)chan->xfer_dma, chan->hc_num); + (unsigned long)dma_addr, chan->hc_num); } /* Start the split */ @@ -2625,6 +2634,35 @@ static void dwc2_hc_init_xfer(struct dwc2_hsotg *hsotg, } } +static int dwc2_alloc_split_dma_aligned_buf(struct dwc2_hsotg *hsotg, + struct dwc2_qh *qh, + struct dwc2_host_chan *chan) +{ + if (!hsotg->unaligned_cache || + chan->max_packet > DWC2_KMEM_UNALIGNED_BUF_SIZE) + return -ENOMEM; + + if (!qh->dw_align_buf) { + qh->dw_align_buf = kmem_cache_alloc(hsotg->unaligned_cache, + GFP_ATOMIC | GFP_DMA); + if (!qh->dw_align_buf) + return -ENOMEM; + } + + qh->dw_align_buf_dma = dma_map_single(hsotg->dev, qh->dw_align_buf, + DWC2_KMEM_UNALIGNED_BUF_SIZE, + DMA_FROM_DEVICE); + + if (dma_mapping_error(hsotg->dev, qh->dw_align_buf_dma)) { + dev_err(hsotg->dev, "can't map align_buf\n"); + chan->align_buf = 0; + return -EINVAL; + } + + chan->align_buf = qh->dw_align_buf_dma; + return 0; +} + #define DWC2_USB_DMA_ALIGN 4 struct dma_aligned_buffer { @@ -2802,6 +2840,32 @@ static int dwc2_assign_and_init_hc(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh) /* Set the transfer attributes */ dwc2_hc_init_xfer(hsotg, chan, qtd); + /* For non-dword aligned buffers */ + if (hsotg->params.host_dma && qh->do_split && + chan->ep_is_in && (chan->xfer_dma & 0x3)) { + dev_vdbg(hsotg->dev, "Non-aligned buffer\n"); + if (dwc2_alloc_split_dma_aligned_buf(hsotg, qh, chan)) { + dev_err(hsotg->dev, + "Failed to allocate memory to handle non-aligned buffer\n"); + /* Add channel back to free list */ + chan->align_buf = 0; + chan->multi_count = 0; + list_add_tail(&chan->hc_list_entry, + &hsotg->free_hc_list); + qtd->in_process = 0; + qh->channel = NULL; + return -ENOMEM; + } + } else { + /* + * We assume that DMA is always aligned in non-split + * case or split out case. Warn if not. + */ + WARN_ON_ONCE(hsotg->params.host_dma && + (chan->xfer_dma & 0x3)); + chan->align_buf = 0; + } + if (chan->ep_type == USB_ENDPOINT_XFER_INT || chan->ep_type == USB_ENDPOINT_XFER_ISOC) /* @@ -5246,6 +5310,19 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg) } } + if (hsotg->params.host_dma) { + /* + * Create kmem caches to handle non-aligned buffer + * in Buffer DMA mode. + */ + hsotg->unaligned_cache = kmem_cache_create("dwc2-unaligned-dma", + DWC2_KMEM_UNALIGNED_BUF_SIZE, 4, + SLAB_CACHE_DMA, NULL); + if (!hsotg->unaligned_cache) + dev_err(hsotg->dev, + "unable to create dwc2 unaligned cache\n"); + } + hsotg->otg_port = 1; hsotg->frame_list = NULL; hsotg->frame_list_dma = 0; @@ -5280,8 +5357,9 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg) return 0; error4: - kmem_cache_destroy(hsotg->desc_gen_cache); + kmem_cache_destroy(hsotg->unaligned_cache); kmem_cache_destroy(hsotg->desc_hsisoc_cache); + kmem_cache_destroy(hsotg->desc_gen_cache); error3: dwc2_hcd_release(hsotg); error2: @@ -5322,8 +5400,9 @@ void dwc2_hcd_remove(struct dwc2_hsotg *hsotg) usb_remove_hcd(hcd); hsotg->priv = NULL; - kmem_cache_destroy(hsotg->desc_gen_cache); + kmem_cache_destroy(hsotg->unaligned_cache); kmem_cache_destroy(hsotg->desc_hsisoc_cache); + kmem_cache_destroy(hsotg->desc_gen_cache); dwc2_hcd_release(hsotg); usb_put_hcd(hcd); diff --git a/drivers/usb/dwc2/hcd.h b/drivers/usb/dwc2/hcd.h index 7db1ee7e7a77..5502a501f516 100644 --- a/drivers/usb/dwc2/hcd.h +++ b/drivers/usb/dwc2/hcd.h @@ -76,6 +76,8 @@ struct dwc2_qh; * (micro)frame * @xfer_buf: Pointer to current transfer buffer position * @xfer_dma: DMA address of xfer_buf + * @align_buf: In Buffer DMA mode this will be used if xfer_buf is not + * DWORD aligned * @xfer_len: Total number of bytes to transfer * @xfer_count: Number of bytes transferred so far * @start_pkt_count: Packet count at start of transfer @@ -133,6 +135,7 @@ struct dwc2_host_chan { u8 *xfer_buf; dma_addr_t xfer_dma; + dma_addr_t align_buf; u32 xfer_len; u32 xfer_count; u16 start_pkt_count; @@ -302,6 +305,9 @@ struct dwc2_hs_transfer_time { * speed. Note that this is in "schedule slice" which * is tightly packed. * @ntd: Actual number of transfer descriptors in a list + * @dw_align_buf: Used instead of original buffer if its physical address + * is not dword-aligned + * @dw_align_buf_dma: DMA address for dw_align_buf * @qtd_list: List of QTDs for this QH * @channel: Host channel currently processing transfers for this QH * @qh_list_entry: Entry for QH in either the periodic or non-periodic @@ -350,6 +356,8 @@ struct dwc2_qh { struct dwc2_hs_transfer_time hs_transfers[DWC2_HS_SCHEDULE_UFRAMES]; u32 ls_start_schedule_slice; u16 ntd; + u8 *dw_align_buf; + dma_addr_t dw_align_buf_dma; struct list_head qtd_list; struct dwc2_host_chan *channel; struct list_head qh_list_entry; diff --git a/drivers/usb/dwc2/hcd_intr.c b/drivers/usb/dwc2/hcd_intr.c index fbea5e3fb947..f3429ac4a6bb 100644 --- a/drivers/usb/dwc2/hcd_intr.c +++ b/drivers/usb/dwc2/hcd_intr.c @@ -950,6 +950,14 @@ static int dwc2_xfercomp_isoc_split_in(struct dwc2_hsotg *hsotg, frame_desc->actual_length += len; + if (chan->align_buf) { + dev_vdbg(hsotg->dev, "non-aligned buffer\n"); + dma_unmap_single(hsotg->dev, chan->qh->dw_align_buf_dma, + DWC2_KMEM_UNALIGNED_BUF_SIZE, DMA_FROM_DEVICE); + memcpy(qtd->urb->buf + (chan->xfer_dma - qtd->urb->dma), + chan->qh->dw_align_buf, len); + } + qtd->isoc_split_offset += len; hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chnum)); diff --git a/drivers/usb/dwc2/hcd_queue.c b/drivers/usb/dwc2/hcd_queue.c index 9c55d1addba9..301ced1618f8 100644 --- a/drivers/usb/dwc2/hcd_queue.c +++ b/drivers/usb/dwc2/hcd_queue.c @@ -1696,6 +1696,9 @@ void dwc2_hcd_qh_free(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh) if (qh->desc_list) dwc2_hcd_qh_free_ddma(hsotg, qh); + else if (hsotg->unaligned_cache && qh->dw_align_buf) + kmem_cache_free(hsotg->unaligned_cache, qh->dw_align_buf); + kfree(qh); } -- cgit v1.2.3 From 70c3c8cb83856758025c2a211dd022bc0478922a Mon Sep 17 00:00:00 2001 From: William Wu Date: Fri, 11 May 2018 17:46:32 +0800 Subject: usb: dwc2: fix isoc split in transfer with no data If isoc split in transfer with no data (the length of DATA0 packet is zero), we can't simply return immediately. Because the DATA0 can be the first transaction or the second transaction for the isoc split in transaction. If the DATA0 packet with no data is in the first transaction, we can return immediately. But if the DATA0 packet with no data is in the second transaction of isoc split in transaction sequence, we need to increase the qtd->isoc_frame_index and giveback urb to device driver if needed, otherwise, the MDATA packet will be lost. A typical test case is that connect the dwc2 controller with an usb hs Hub (GL852G-12), and plug an usb fs audio device (Plantronics headset) into the downstream port of Hub. Then use the usb mic to record, we can find noise when playback. In the case, the isoc split in transaction sequence like this: - SSPLIT IN transaction - CSPLIT IN transaction - MDATA packet (176 bytes) - CSPLIT IN transaction - DATA0 packet (0 byte) This patch use both the length of DATA0 and qtd->isoc_split_offset to check if the DATA0 is in the second transaction. Tested-by: Gevorg Sahakyan Tested-by: Heiko Stuebner Acked-by: Minas Harutyunyan hminas@synopsys.com> Signed-off-by: William Wu Signed-off-by: Felipe Balbi --- drivers/usb/dwc2/hcd_intr.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/usb/dwc2/hcd_intr.c b/drivers/usb/dwc2/hcd_intr.c index f3429ac4a6bb..ed7f05cf4906 100644 --- a/drivers/usb/dwc2/hcd_intr.c +++ b/drivers/usb/dwc2/hcd_intr.c @@ -942,9 +942,8 @@ static int dwc2_xfercomp_isoc_split_in(struct dwc2_hsotg *hsotg, frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index]; len = dwc2_get_actual_xfer_length(hsotg, chan, chnum, qtd, DWC2_HC_XFER_COMPLETE, NULL); - if (!len) { + if (!len && !qtd->isoc_split_offset) { qtd->complete_split = 0; - qtd->isoc_split_offset = 0; return 0; } -- cgit v1.2.3 From 980900d6318066b9f8314bfb87329a20fd0d1ca4 Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Fri, 25 May 2018 17:24:57 +0800 Subject: usb: gadget: composite: fix delayed_status race condition when set_interface It happens when enable debug log, if set_alt() returns USB_GADGET_DELAYED_STATUS and usb_composite_setup_continue() is called before increasing count of @delayed_status, so fix it by using spinlock of @cdev->lock. Signed-off-by: Chunfeng Yun Tested-by: Jay Hsu Signed-off-by: Felipe Balbi --- drivers/usb/gadget/composite.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index f242c2bcea81..d2fa071c21b1 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -1719,6 +1719,8 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) */ if (w_value && !f->get_alt) break; + + spin_lock(&cdev->lock); value = f->set_alt(f, w_index, w_value); if (value == USB_GADGET_DELAYED_STATUS) { DBG(cdev, @@ -1728,6 +1730,7 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) DBG(cdev, "delayed_status count %d\n", cdev->delayed_status); } + spin_unlock(&cdev->lock); break; case USB_REQ_GET_INTERFACE: if (ctrl->bRequestType != (USB_DIR_IN|USB_RECIP_INTERFACE)) -- cgit v1.2.3 From 9bb073a053f0464ea74a4d4c331fdb7da58568d6 Mon Sep 17 00:00:00 2001 From: Grigor Tovmasyan Date: Thu, 24 May 2018 18:22:30 +0400 Subject: usb: gadget: dwc2: fix memory leak in gadget_init() Freed allocated request for ep0 to prevent memory leak in case when dwc2_driver_probe() failed. Cc: Stefan Wahren Cc: Marek Szyprowski Tested-by: Stefan Wahren Tested-by: Marek Szyprowski Acked-by: Minas Harutyunyan Signed-off-by: Grigor Tovmasyan Signed-off-by: Felipe Balbi --- drivers/usb/dwc2/gadget.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index fa3b6f361074..76e4f2e7d947 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -4735,9 +4735,11 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg) } ret = usb_add_gadget_udc(dev, &hsotg->gadget); - if (ret) + if (ret) { + dwc2_hsotg_ep_free_request(&hsotg->eps_out[0]->ep, + hsotg->ctrl_req); return ret; - + } dwc2_hsotg_dump(hsotg); return 0; @@ -4751,6 +4753,7 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg) int dwc2_hsotg_remove(struct dwc2_hsotg *hsotg) { usb_del_gadget_udc(&hsotg->gadget); + dwc2_hsotg_ep_free_request(&hsotg->eps_out[0]->ep, hsotg->ctrl_req); return 0; } -- cgit v1.2.3 From 1d8e5c00275825fc42aaa5597dab1d0b5b26bb64 Mon Sep 17 00:00:00 2001 From: Minas Harutyunyan Date: Wed, 23 May 2018 16:24:44 +0400 Subject: dwc2: gadget: Fix ISOC IN DDMA PID bitfield value calculation PID bitfield in descriptor should be set based on particular request length, not based on EP's mc value. PID value can't be set to 0 even request length is 0. Signed-off-by: Minas Harutyunyan Signed-off-by: Felipe Balbi --- drivers/usb/dwc2/gadget.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index 76e4f2e7d947..a0f82cca2d9a 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -812,6 +812,7 @@ static int dwc2_gadget_fill_isoc_desc(struct dwc2_hsotg_ep *hs_ep, u32 index; u32 maxsize = 0; u32 mask = 0; + u8 pid = 0; maxsize = dwc2_gadget_get_desc_params(hs_ep, &mask); @@ -840,7 +841,11 @@ static int dwc2_gadget_fill_isoc_desc(struct dwc2_hsotg_ep *hs_ep, ((len << DEV_DMA_NBYTES_SHIFT) & mask)); if (hs_ep->dir_in) { - desc->status |= ((hs_ep->mc << DEV_DMA_ISOC_PID_SHIFT) & + if (len) + pid = DIV_ROUND_UP(len, hs_ep->ep.maxpacket); + else + pid = 1; + desc->status |= ((pid << DEV_DMA_ISOC_PID_SHIFT) & DEV_DMA_ISOC_PID_MASK) | ((len % hs_ep->ep.maxpacket) ? DEV_DMA_SHORT : 0) | -- cgit v1.2.3 From 229bc19fd7aca4f37964af06e3583c1c8f36b5d6 Mon Sep 17 00:00:00 2001 From: Mathias Nyman Date: Thu, 21 Jun 2018 16:19:41 +0300 Subject: xhci: Fix perceived dead host due to runtime suspend race with event handler Don't rely on event interrupt (EINT) bit alone to detect pending port change in resume. If no change event is detected the host may be suspended again, oterwise roothubs are resumed. There is a lag in xHC setting EINT. If we don't notice the pending change in resume, and the controller is runtime suspeded again, it causes the event handler to assume host is dead as it will fail to read xHC registers once PCI puts the controller to D3 state. [ 268.520969] xhci_hcd: xhci_resume: starting port polling. [ 268.520985] xhci_hcd: xhci_hub_status_data: stopping port polling. [ 268.521030] xhci_hcd: xhci_suspend: stopping port polling. [ 268.521040] xhci_hcd: // Setting command ring address to 0x349bd001 [ 268.521139] xhci_hcd: Port Status Change Event for port 3 [ 268.521149] xhci_hcd: resume root hub [ 268.521163] xhci_hcd: port resume event for port 3 [ 268.521168] xhci_hcd: xHC is not running. [ 268.521174] xhci_hcd: handle_port_status: starting port polling. [ 268.596322] xhci_hcd: xhci_hc_died: xHCI host controller not responding, assume dead The EINT lag is described in a additional note in xhci specs 4.19.2: "Due to internal xHC scheduling and system delays, there will be a lag between a change bit being set and the Port Status Change Event that it generated being written to the Event Ring. If SW reads the PORTSC and sees a change bit set, there is no guarantee that the corresponding Port Status Change Event has already been written into the Event Ring." Cc: Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci.c | 40 +++++++++++++++++++++++++++++++++++++--- drivers/usb/host/xhci.h | 4 ++++ 2 files changed, 41 insertions(+), 3 deletions(-) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 8c8da2d657fa..f11ec61bcc7d 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -908,6 +908,41 @@ static void xhci_disable_port_wake_on_bits(struct xhci_hcd *xhci) spin_unlock_irqrestore(&xhci->lock, flags); } +static bool xhci_pending_portevent(struct xhci_hcd *xhci) +{ + struct xhci_port **ports; + int port_index; + u32 status; + u32 portsc; + + status = readl(&xhci->op_regs->status); + if (status & STS_EINT) + return true; + /* + * Checking STS_EINT is not enough as there is a lag between a change + * bit being set and the Port Status Change Event that it generated + * being written to the Event Ring. See note in xhci 1.1 section 4.19.2. + */ + + port_index = xhci->usb2_rhub.num_ports; + ports = xhci->usb2_rhub.ports; + while (port_index--) { + portsc = readl(ports[port_index]->addr); + if (portsc & PORT_CHANGE_MASK || + (portsc & PORT_PLS_MASK) == XDEV_RESUME) + return true; + } + port_index = xhci->usb3_rhub.num_ports; + ports = xhci->usb3_rhub.ports; + while (port_index--) { + portsc = readl(ports[port_index]->addr); + if (portsc & PORT_CHANGE_MASK || + (portsc & PORT_PLS_MASK) == XDEV_RESUME) + return true; + } + return false; +} + /* * Stop HC (not bus-specific) * @@ -1009,7 +1044,7 @@ EXPORT_SYMBOL_GPL(xhci_suspend); */ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) { - u32 command, temp = 0, status; + u32 command, temp = 0; struct usb_hcd *hcd = xhci_to_hcd(xhci); struct usb_hcd *secondary_hcd; int retval = 0; @@ -1134,8 +1169,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) done: if (retval == 0) { /* Resume root hubs only when have pending events. */ - status = readl(&xhci->op_regs->status); - if (status & STS_EINT) { + if (xhci_pending_portevent(xhci)) { usb_hcd_resume_root_hub(xhci->shared_hcd); usb_hcd_resume_root_hub(hcd); } diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 939e2f86b595..841e89ffe2e9 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -382,6 +382,10 @@ struct xhci_op_regs { #define PORT_PLC (1 << 22) /* port configure error change - port failed to configure its link partner */ #define PORT_CEC (1 << 23) +#define PORT_CHANGE_MASK (PORT_CSC | PORT_PEC | PORT_WRC | PORT_OCC | \ + PORT_RC | PORT_PLC | PORT_CEC) + + /* Cold Attach Status - xHC can set this bit to report device attached during * Sx state. Warm port reset should be perfomed to clear this bit and move port * to connected state. -- cgit v1.2.3 From d850c1658328e757635a46763783c6fd56390dcb Mon Sep 17 00:00:00 2001 From: Zhengjun Xing Date: Thu, 21 Jun 2018 16:19:42 +0300 Subject: xhci: Fix kernel oops in trace_xhci_free_virt_device commit 44a182b9d177 ("xhci: Fix use-after-free in xhci_free_virt_device") set dev->udev pointer to NULL in xhci_free_dev(), it will cause kernel panic in trace_xhci_free_virt_device. This patch reimplement the trace function trace_xhci_free_virt_device, remove dev->udev dereference and added more useful parameters to show in the trace function,it also makes sure dev->udev is not NULL before calling trace_xhci_free_virt_device. This issue happened when xhci-hcd trace is enabled and USB devices hot plug test. Original use-after-free patch went to stable so this needs so be applied there as well. [ 1092.022457] usb 2-4: USB disconnect, device number 6 [ 1092.092772] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 [ 1092.101694] PGD 0 P4D 0 [ 1092.104601] Oops: 0000 [#1] SMP [ 1092.207734] Workqueue: usb_hub_wq hub_event [ 1092.212507] RIP: 0010:trace_event_raw_event_xhci_log_virt_dev+0x6c/0xf0 [ 1092.220050] RSP: 0018:ffff8c252e883d28 EFLAGS: 00010086 [ 1092.226024] RAX: ffff8c24af86fa84 RBX: 0000000000000003 RCX: ffff8c25255c2a01 [ 1092.234130] RDX: 0000000000000000 RSI: 00000000aef55009 RDI: ffff8c252e883d28 [ 1092.242242] RBP: ffff8c252550e2c0 R08: ffff8c24af86fa84 R09: 0000000000000a70 [ 1092.250364] R10: 0000000000000a70 R11: 0000000000000000 R12: ffff8c251f21a000 [ 1092.258468] R13: 000000000000000c R14: ffff8c251f21a000 R15: ffff8c251f432f60 [ 1092.266572] FS: 0000000000000000(0000) GS:ffff8c252e880000(0000) knlGS:0000000000000000 [ 1092.275757] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1092.282281] CR2: 0000000000000000 CR3: 0000000154209001 CR4: 00000000003606e0 [ 1092.290384] Call Trace: [ 1092.293156] [ 1092.295439] xhci_free_virt_device.part.34+0x182/0x1a0 [ 1092.301288] handle_cmd_completion+0x7ac/0xfa0 [ 1092.306336] ? trace_event_raw_event_xhci_log_trb+0x6e/0xa0 [ 1092.312661] xhci_irq+0x3e8/0x1f60 [ 1092.316524] __handle_irq_event_percpu+0x75/0x180 [ 1092.321876] handle_irq_event_percpu+0x20/0x50 [ 1092.326922] handle_irq_event+0x36/0x60 [ 1092.331273] handle_edge_irq+0x6d/0x180 [ 1092.335644] handle_irq+0x16/0x20 [ 1092.339417] do_IRQ+0x41/0xc0 [ 1092.342782] common_interrupt+0xf/0xf [ 1092.346955] Fixes: 44a182b9d177 ("xhci: Fix use-after-free in xhci_free_virt_device") Cc: Signed-off-by: Zhengjun Xing Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-mem.c | 4 ++-- drivers/usb/host/xhci-trace.h | 36 +++++++++++++++++++++++++++++++----- 2 files changed, 33 insertions(+), 7 deletions(-) diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index acbd3d7b8828..8a62eee9eee1 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -886,12 +886,12 @@ void xhci_free_virt_device(struct xhci_hcd *xhci, int slot_id) dev = xhci->devs[slot_id]; - trace_xhci_free_virt_device(dev); - xhci->dcbaa->dev_context_ptrs[slot_id] = 0; if (!dev) return; + trace_xhci_free_virt_device(dev); + if (dev->tt_info) old_active_eps = dev->tt_info->active_eps; diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h index 410544ffe78f..88b427434bd8 100644 --- a/drivers/usb/host/xhci-trace.h +++ b/drivers/usb/host/xhci-trace.h @@ -171,6 +171,37 @@ DEFINE_EVENT(xhci_log_trb, xhci_dbc_gadget_ep_queue, TP_ARGS(ring, trb) ); +DECLARE_EVENT_CLASS(xhci_log_free_virt_dev, + TP_PROTO(struct xhci_virt_device *vdev), + TP_ARGS(vdev), + TP_STRUCT__entry( + __field(void *, vdev) + __field(unsigned long long, out_ctx) + __field(unsigned long long, in_ctx) + __field(u8, fake_port) + __field(u8, real_port) + __field(u16, current_mel) + + ), + TP_fast_assign( + __entry->vdev = vdev; + __entry->in_ctx = (unsigned long long) vdev->in_ctx->dma; + __entry->out_ctx = (unsigned long long) vdev->out_ctx->dma; + __entry->fake_port = (u8) vdev->fake_port; + __entry->real_port = (u8) vdev->real_port; + __entry->current_mel = (u16) vdev->current_mel; + ), + TP_printk("vdev %p ctx %llx | %llx fake_port %d real_port %d current_mel %d", + __entry->vdev, __entry->in_ctx, __entry->out_ctx, + __entry->fake_port, __entry->real_port, __entry->current_mel + ) +); + +DEFINE_EVENT(xhci_log_free_virt_dev, xhci_free_virt_device, + TP_PROTO(struct xhci_virt_device *vdev), + TP_ARGS(vdev) +); + DECLARE_EVENT_CLASS(xhci_log_virt_dev, TP_PROTO(struct xhci_virt_device *vdev), TP_ARGS(vdev), @@ -208,11 +239,6 @@ DEFINE_EVENT(xhci_log_virt_dev, xhci_alloc_virt_device, TP_ARGS(vdev) ); -DEFINE_EVENT(xhci_log_virt_dev, xhci_free_virt_device, - TP_PROTO(struct xhci_virt_device *vdev), - TP_ARGS(vdev) -); - DEFINE_EVENT(xhci_log_virt_dev, xhci_setup_device, TP_PROTO(struct xhci_virt_device *vdev), TP_ARGS(vdev) -- cgit v1.2.3 From 36eb93509c45d0bdbd8d09a01ab9d857972f5963 Mon Sep 17 00:00:00 2001 From: Dongjiu Geng Date: Thu, 21 Jun 2018 16:19:43 +0300 Subject: usb: xhci: remove the code build warning Initialize the 'err' variate to remove the build warning, the warning is shown as below: drivers/usb/host/xhci-tegra.c: In function 'tegra_xusb_mbox_thread': drivers/usb/host/xhci-tegra.c:552:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized] drivers/usb/host/xhci-tegra.c:482:6: note: 'err' was declared here Fixes: e84fce0f8837 ("usb: xhci: Add NVIDIA Tegra XUSB controller driver") Signed-off-by: Dongjiu Geng Acked-by: Thierry Reding Acked-by: Jon Hunter Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-tegra.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c index a8c1d073cba0..d50549fedec8 100644 --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -481,7 +481,7 @@ static void tegra_xusb_mbox_handle(struct tegra_xusb *tegra, unsigned long mask; unsigned int port; bool idle, enable; - int err; + int err = 0; memset(&rsp, 0, sizeof(rsp)); -- cgit v1.2.3 From 3431a150fd89bc74cd2f2aaf6977cc0e278fb445 Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Thu, 21 Jun 2018 16:19:44 +0300 Subject: usb: xhci: tegra: fix runtime PM error handling The address-of operator will always evaluate to true. However, power should be explicitly disabled if no power domain is used. Remove the address-of operator. Fixes: 58c38116c6cc ("usb: xhci: tegra: Add support for managing powergates") Signed-off-by: Stefan Agner Acked-by: Jon Hunter Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-tegra.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c index d50549fedec8..4b463e5202a4 100644 --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -1223,10 +1223,10 @@ disable_rpm: pm_runtime_disable(&pdev->dev); usb_put_hcd(tegra->hcd); disable_xusbc: - if (!&pdev->dev.pm_domain) + if (!pdev->dev.pm_domain) tegra_powergate_power_off(TEGRA_POWERGATE_XUSBC); disable_xusba: - if (!&pdev->dev.pm_domain) + if (!pdev->dev.pm_domain) tegra_powergate_power_off(TEGRA_POWERGATE_XUSBA); put_padctl: tegra_xusb_padctl_put(tegra->padctl); -- cgit v1.2.3 From 305886ca87be480ae159908c2affd135c04215cf Mon Sep 17 00:00:00 2001 From: Ajay Gupta Date: Thu, 21 Jun 2018 16:19:45 +0300 Subject: usb: xhci: increase CRS timeout value Some controllers take almost 55ms to complete controller restore state (CRS). There is no timeout limit mentioned in xhci specification so fixing the issue by increasing the timeout limit to 100ms [reformat code comment -Mathias] Signed-off-by: Ajay Gupta Signed-off-by: Nagaraj Annaiah Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index f11ec61bcc7d..2f4850f25e82 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1078,8 +1078,13 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) command = readl(&xhci->op_regs->command); command |= CMD_CRS; writel(command, &xhci->op_regs->command); + /* + * Some controllers take up to 55+ ms to complete the controller + * restore so setting the timeout to 100ms. Xhci specification + * doesn't mention any timeout value. + */ if (xhci_handshake(&xhci->op_regs->status, - STS_RESTORE, 0, 10 * 1000)) { + STS_RESTORE, 0, 100 * 1000)) { xhci_warn(xhci, "WARN: xHC restore state timeout\n"); spin_unlock_irq(&xhci->lock); return -ETIMEDOUT; -- cgit v1.2.3 From d2d2e3c46be5d6dd8001d0eebdf7cafb9bc7006b Mon Sep 17 00:00:00 2001 From: Heikki Krogerus Date: Thu, 21 Jun 2018 16:43:17 +0300 Subject: acpi: Add helper for deactivating memory region Sometimes memory resource may be overlapping with SystemMemory Operation Region by design, for example if the memory region is used as a mailbox for communication with a firmware in the system. One occasion of such mailboxes is USB Type-C Connector System Software Interface (UCSI). With regions like that, it is important that the driver is able to map the memory with the requirements it has. For example, the driver should be allowed to map the memory as non-cached memory. However, if the operation region has been accessed before the driver has mapped the memory, the memory has been marked as write-back by the time the driver is loaded. That means the driver will fail to map the memory if it expects non-cached memory. To work around the problem, introducing helper that the drivers can use to temporarily deactivate (unmap) SystemMemory Operation Regions that overlap with their IO memory. Fixes: 8243edf44152 ("usb: typec: ucsi: Add ACPI driver") Cc: stable@vger.kernel.org Reviewed-by: Rafael J. Wysocki Signed-off-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/osl.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/acpi.h | 3 +++ 2 files changed, 75 insertions(+) diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 7ca41bf023c9..8df9abfa947b 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -45,6 +45,8 @@ #include #include +#include "acpica/accommon.h" +#include "acpica/acnamesp.h" #include "internal.h" #define _COMPONENT ACPI_OS_SERVICES @@ -1490,6 +1492,76 @@ int acpi_check_region(resource_size_t start, resource_size_t n, } EXPORT_SYMBOL(acpi_check_region); +static acpi_status acpi_deactivate_mem_region(acpi_handle handle, u32 level, + void *_res, void **return_value) +{ + struct acpi_mem_space_context **mem_ctx; + union acpi_operand_object *handler_obj; + union acpi_operand_object *region_obj2; + union acpi_operand_object *region_obj; + struct resource *res = _res; + acpi_status status; + + region_obj = acpi_ns_get_attached_object(handle); + if (!region_obj) + return AE_OK; + + handler_obj = region_obj->region.handler; + if (!handler_obj) + return AE_OK; + + if (region_obj->region.space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) + return AE_OK; + + if (!(region_obj->region.flags & AOPOBJ_SETUP_COMPLETE)) + return AE_OK; + + region_obj2 = acpi_ns_get_secondary_object(region_obj); + if (!region_obj2) + return AE_OK; + + mem_ctx = (void *)®ion_obj2->extra.region_context; + + if (!(mem_ctx[0]->address >= res->start && + mem_ctx[0]->address < res->end)) + return AE_OK; + + status = handler_obj->address_space.setup(region_obj, + ACPI_REGION_DEACTIVATE, + NULL, (void **)mem_ctx); + if (ACPI_SUCCESS(status)) + region_obj->region.flags &= ~(AOPOBJ_SETUP_COMPLETE); + + return status; +} + +/** + * acpi_release_memory - Release any mappings done to a memory region + * @handle: Handle to namespace node + * @res: Memory resource + * @level: A level that terminates the search + * + * Walks through @handle and unmaps all SystemMemory Operation Regions that + * overlap with @res and that have already been activated (mapped). + * + * This is a helper that allows drivers to place special requirements on memory + * region that may overlap with operation regions, primarily allowing them to + * safely map the region as non-cached memory. + * + * The unmapped Operation Regions will be automatically remapped next time they + * are called, so the drivers do not need to do anything else. + */ +acpi_status acpi_release_memory(acpi_handle handle, struct resource *res, + u32 level) +{ + if (!(res->flags & IORESOURCE_MEM)) + return AE_TYPE; + + return acpi_walk_namespace(ACPI_TYPE_REGION, handle, level, + acpi_deactivate_mem_region, NULL, res, NULL); +} +EXPORT_SYMBOL_GPL(acpi_release_memory); + /* * Let drivers know whether the resource checks are effective */ diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 4b35a66383f9..e54f40974eb0 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -443,6 +443,9 @@ int acpi_check_resource_conflict(const struct resource *res); int acpi_check_region(resource_size_t start, resource_size_t n, const char *name); +acpi_status acpi_release_memory(acpi_handle handle, struct resource *res, + u32 level); + int acpi_resources_are_enforced(void); #ifdef CONFIG_HIBERNATION -- cgit v1.2.3 From 1f9f9d168ce619608572b01771c47a41b15429e6 Mon Sep 17 00:00:00 2001 From: Heikki Krogerus Date: Thu, 21 Jun 2018 16:43:18 +0300 Subject: usb: typec: ucsi: acpi: Workaround for cache mode issue This fixes an issue where the driver fails with an error: ioremap error for 0x3f799000-0x3f79a000, requested 0x2, got 0x0 On some platforms the UCSI ACPI mailbox SystemMemory Operation Region may be setup before the driver has been loaded. That will lead into the driver failing to map the mailbox region, as it has been already marked as write-back memory. acpi_os_ioremap() for x86 uses ioremap_cache() unconditionally. When the issue happens, the embedded controller has a pending query event for the UCSI notification right after boot-up which causes the operation region to be setup before UCSI driver has been loaded. The fix is to notify acpi core that the driver is about to access memory region which potentially overlaps with an operation region right before mapping it. acpi_release_memory() will check if the memory has already been setup (mapped) by acpi core, and deactivate it (unmap) if it has. The driver is then able to map the memory with ioremap_nocache() and set the memtype to uncached for the region. Reported-by: Paul Menzel Fixes: 8243edf44152 ("usb: typec: ucsi: Add ACPI driver") Cc: stable@vger.kernel.org Signed-off-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman --- drivers/usb/typec/ucsi/ucsi_acpi.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/usb/typec/ucsi/ucsi_acpi.c b/drivers/usb/typec/ucsi/ucsi_acpi.c index 44eb4e1ea817..a18112a83fae 100644 --- a/drivers/usb/typec/ucsi/ucsi_acpi.c +++ b/drivers/usb/typec/ucsi/ucsi_acpi.c @@ -79,6 +79,11 @@ static int ucsi_acpi_probe(struct platform_device *pdev) return -ENODEV; } + /* This will make sure we can use ioremap_nocache() */ + status = acpi_release_memory(ACPI_HANDLE(&pdev->dev), res, 1); + if (ACPI_FAILURE(status)) + return -ENOMEM; + /* * NOTE: The memory region for the data structures is used also in an * operation region, which means ACPI has already reserved it. Therefore -- cgit v1.2.3 From 68816e16b4789f2d05e77b6dcb77564cf5d6a8d8 Mon Sep 17 00:00:00 2001 From: Heikki Krogerus Date: Thu, 21 Jun 2018 16:43:19 +0300 Subject: usb: typec: ucsi: Fix for incorrect status data issue According to UCSI Specification, Connector Change Event only means a change in the Connector Status and Operation Mode fields of the STATUS data structure. So any other change should create another event. Unfortunately on some platforms the firmware acting as PPM (platform policy manager - usually embedded controller firmware) still does not report any other status changes if there is a connector change event. So if the connector power or data role was changed when a device was plugged to the connector, the driver does not get any indication about that. The port will show wrong roles if that happens. To fix the issue, always checking the data and power role together with a connector change event. Fixes: c1b0bc2dabfa ("usb: typec: Add support for UCSI interface") Signed-off-by: Heikki Krogerus Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/typec/ucsi/ucsi.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c index bd5cca5632b3..8d0a6fe748bd 100644 --- a/drivers/usb/typec/ucsi/ucsi.c +++ b/drivers/usb/typec/ucsi/ucsi.c @@ -350,6 +350,19 @@ static void ucsi_connector_change(struct work_struct *work) } if (con->status.change & UCSI_CONSTAT_CONNECT_CHANGE) { + typec_set_pwr_role(con->port, con->status.pwr_dir); + + switch (con->status.partner_type) { + case UCSI_CONSTAT_PARTNER_TYPE_UFP: + typec_set_data_role(con->port, TYPEC_HOST); + break; + case UCSI_CONSTAT_PARTNER_TYPE_DFP: + typec_set_data_role(con->port, TYPEC_DEVICE); + break; + default: + break; + } + if (con->status.connected) ucsi_register_partner(con); else -- cgit v1.2.3 From e16711c32bca59a29d8ef449eda5b8427dc6eb6d Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 20 Jun 2018 17:05:42 -0700 Subject: staging/typec: fix tcpci_rt1711h build errors Fix Kconfig warning and build errors in staging/typec/rt1711h.c. The driver uses I2C interfaces so it should depend on I2C. WARNING: unmet direct dependencies detected for TYPEC_TCPCI Depends on [m]: STAGING [=y] && TYPEC_TCPM [=y] && I2C [=m] Selected by [y]: - TYPEC_RT1711H [=y] && STAGING [=y] && TYPEC_TCPM [=y] and then: drivers/staging/typec/tcpci.o: In function `tcpci_probe': ../drivers/staging/typec/tcpci.c:536: undefined reference to `__devm_regmap_init_i2c' drivers/staging/typec/tcpci.o: In function `tcpci_i2c_driver_init': ../drivers/staging/typec/tcpci.c:593: undefined reference to `i2c_register_driver' drivers/staging/typec/tcpci.o: In function `tcpci_i2c_driver_exit': ../drivers/staging/typec/tcpci.c:593: undefined reference to `i2c_del_driver' drivers/staging/typec/tcpci_rt1711h.o: In function `rt1711h_check_revision': ../drivers/staging/typec/tcpci_rt1711h.c:218: undefined reference to `i2c_smbus_read_word_data' ../drivers/staging/typec/tcpci_rt1711h.c:225: undefined reference to `i2c_smbus_read_word_data' drivers/staging/typec/tcpci_rt1711h.o: In function `rt1711h_probe': ../drivers/staging/typec/tcpci_rt1711h.c:251: undefined reference to `__devm_regmap_init_i2c' drivers/staging/typec/tcpci_rt1711h.o: In function `rt1711h_i2c_driver_init': ../drivers/staging/typec/tcpci_rt1711h.c:308: undefined reference to `i2c_register_driver' drivers/staging/typec/tcpci_rt1711h.o: In function `rt1711h_i2c_driver_exit': ../drivers/staging/typec/tcpci_rt1711h.c:308: undefined reference to `i2c_del_driver' Fixes: ce08eaeb6388 ("staging: typec: rt1711h typec chip driver") Reported-by: kbuild test robot Signed-off-by: Randy Dunlap Cc: ShuFan Lee Cc: kbuild-all@01.org Reviewed-by: Guenter Roeck Revieved-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman --- drivers/staging/typec/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/staging/typec/Kconfig b/drivers/staging/typec/Kconfig index 3aa981fbc8f5..e45ed08a5166 100644 --- a/drivers/staging/typec/Kconfig +++ b/drivers/staging/typec/Kconfig @@ -11,6 +11,7 @@ config TYPEC_TCPCI config TYPEC_RT1711H tristate "Richtek RT1711H Type-C chip driver" + depends on I2C select TYPEC_TCPCI help Richtek RT1711H Type-C chip driver that works with -- cgit v1.2.3 From 4a762569a2722b8a48066c7bacf0e1dc67d17fa1 Mon Sep 17 00:00:00 2001 From: Houston Yaroschoff Date: Mon, 11 Jun 2018 12:39:09 +0200 Subject: usb: cdc_acm: Add quirk for Uniden UBC125 scanner Uniden UBC125 radio scanner has USB interface which fails to work with cdc_acm driver: usb 1-1.5: new full-speed USB device number 4 using xhci_hcd cdc_acm 1-1.5:1.0: Zero length descriptor references cdc_acm: probe of 1-1.5:1.0 failed with error -22 Adding the NO_UNION_NORMAL quirk for the device fixes the issue: usb 1-4: new full-speed USB device number 15 using xhci_hcd usb 1-4: New USB device found, idVendor=1965, idProduct=0018 usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-4: Product: UBC125XLT usb 1-4: Manufacturer: Uniden Corp. usb 1-4: SerialNumber: 0001 cdc_acm 1-4:1.0: ttyACM0: USB ACM device `lsusb -v` of the device: Bus 001 Device 015: ID 1965:0018 Uniden Corporation Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 2 Communications bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x1965 Uniden Corporation idProduct 0x0018 bcdDevice 0.01 iManufacturer 1 Uniden Corp. iProduct 2 UBC125XLT iSerial 3 0001 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 48 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 2 Communications bInterfaceSubClass 2 Abstract (modem) bInterfaceProtocol 0 None iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x87 EP 7 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 10 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 10 CDC Data bInterfaceSubClass 0 Unused bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Device Status: 0x0000 (Bus Powered) Signed-off-by: Houston Yaroschoff Cc: stable Acked-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-acm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 7b366a6c0b49..998b32d0167e 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1758,6 +1758,9 @@ static const struct usb_device_id acm_ids[] = { { USB_DEVICE(0x11ca, 0x0201), /* VeriFone Mx870 Gadget Serial */ .driver_info = SINGLE_RX_URB, }, + { USB_DEVICE(0x1965, 0x0018), /* Uniden UBC125XLT */ + .driver_info = NO_UNION_NORMAL, /* has no union descriptor */ + }, { USB_DEVICE(0x22b8, 0x7000), /* Motorola Q Phone */ .driver_info = NO_UNION_NORMAL, /* has no union descriptor */ }, -- cgit v1.2.3 From ecc443c03fb14abfb8a6af5e3b2d43b5257e60f2 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Thu, 7 Jun 2018 15:54:48 +0200 Subject: NFC: pn533: Fix wrong GFP flag usage pn533_recv_response() is an urb completion handler, so it must use GFP_ATOMIC. pn533_usb_send_frame() OTOH runs from a regular sleeping context, so the pn533_submit_urb_for_response() there (and only there) can use the regular GFP_KERNEL flags. BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1514134 Fixes: 9815c7cf22da ("NFC: pn533: Separate physical layer from ...") Cc: Michael Thalmeier Signed-off-by: Hans de Goede Signed-off-by: Greg Kroah-Hartman --- drivers/nfc/pn533/usb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/nfc/pn533/usb.c b/drivers/nfc/pn533/usb.c index d5553c47014f..5d823e965883 100644 --- a/drivers/nfc/pn533/usb.c +++ b/drivers/nfc/pn533/usb.c @@ -74,7 +74,7 @@ static void pn533_recv_response(struct urb *urb) struct sk_buff *skb = NULL; if (!urb->status) { - skb = alloc_skb(urb->actual_length, GFP_KERNEL); + skb = alloc_skb(urb->actual_length, GFP_ATOMIC); if (!skb) { nfc_err(&phy->udev->dev, "failed to alloc memory\n"); } else { @@ -186,7 +186,7 @@ static int pn533_usb_send_frame(struct pn533 *dev, if (dev->protocol_type == PN533_PROTO_REQ_RESP) { /* request for response for sent packet directly */ - rc = pn533_submit_urb_for_response(phy, GFP_ATOMIC); + rc = pn533_submit_urb_for_response(phy, GFP_KERNEL); if (rc) goto error; } else if (dev->protocol_type == PN533_PROTO_REQ_ACK_RESP) { -- cgit v1.2.3 From 9578bcd0bb487b8ecef4b7eee799aafb678aa441 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 7 Jun 2018 16:17:14 +0300 Subject: typec: tcpm: Fix a msecs vs jiffies bug The tcpm_set_state() function take msecs not jiffies. Fixes: f0690a25a140 ("staging: typec: USB Type-C Port Manager (tcpm)") Signed-off-by: Dan Carpenter Acked-by: Heikki Krogerus Reviewed-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- drivers/usb/typec/tcpm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c index 8a201dd53d36..0dfd755020f4 100644 --- a/drivers/usb/typec/tcpm.c +++ b/drivers/usb/typec/tcpm.c @@ -3043,7 +3043,8 @@ static void run_state_machine(struct tcpm_port *port) tcpm_port_is_sink(port) && time_is_after_jiffies(port->delayed_runtime)) { tcpm_set_state(port, SNK_DISCOVERY, - port->delayed_runtime - jiffies); + jiffies_to_msecs(port->delayed_runtime - + jiffies)); break; } tcpm_set_state(port, unattached_state(port), 0); -- cgit v1.2.3 From d5a4f93511b7000183c0d528739b824752139f79 Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Tue, 12 Jun 2018 09:53:01 +0800 Subject: usb: typec: tcpm: fix logbuffer index is wrong if _tcpm_log is re-entered The port->logbuffer_head may be wrong if the two processes enters _tcpm_log at the mostly same time. The 2nd process enters _tcpm_log before the 1st process update the index, then the 2nd process will not allocate logbuffer, when the 2nd process tries to use log buffer, the index has already updated by the 1st process, so it will get NULL pointer for updated logbuffer, the error message like below: tcpci 0-0050: Log buffer index 6 is NULL Cc: Heikki Krogerus Cc: Guenter Roeck Cc: Jun Li Signed-off-by: Peter Chen Reviewed-by: Heikki Krogerus Cc: stable Reviewed-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- drivers/usb/typec/tcpm.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c index 0dfd755020f4..d961f1ec0e08 100644 --- a/drivers/usb/typec/tcpm.c +++ b/drivers/usb/typec/tcpm.c @@ -418,17 +418,18 @@ static void _tcpm_log(struct tcpm_port *port, const char *fmt, va_list args) u64 ts_nsec = local_clock(); unsigned long rem_nsec; + mutex_lock(&port->logbuffer_lock); if (!port->logbuffer[port->logbuffer_head]) { port->logbuffer[port->logbuffer_head] = kzalloc(LOG_BUFFER_ENTRY_SIZE, GFP_KERNEL); - if (!port->logbuffer[port->logbuffer_head]) + if (!port->logbuffer[port->logbuffer_head]) { + mutex_unlock(&port->logbuffer_lock); return; + } } vsnprintf(tmpbuffer, sizeof(tmpbuffer), fmt, args); - mutex_lock(&port->logbuffer_lock); - if (tcpm_log_full(port)) { port->logbuffer_head = max(port->logbuffer_head - 1, 0); strcpy(tmpbuffer, "overflow"); -- cgit v1.2.3 From 90f26cc6bb90b35040f4da0347f480ea9df6e2fc Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Wed, 6 Jun 2018 09:43:27 +0800 Subject: usb: chipidea: host: fix disconnection detect issue The commit 4e88d4c08301 ("usb: add a flag to skip PHY initialization to struct usb_hcd") delete the assignment for hcd->usb_phy, it causes usb_phy_notify_connect{disconnect) are not called, the USB PHY driver is not notified of hot plug event, then the disconnection will not be detected by hardware. Fixes: 4e88d4c08301 ("usb: add a flag to skip PHY initialization to struct usb_hcd") Acked-by: Martin Blumenstingl Reported-by: Mats Karrman Tested-by: Mats Karrman Signed-off-by: Peter Chen --- drivers/usb/chipidea/host.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c index af45aa3222b5..4638d9b066be 100644 --- a/drivers/usb/chipidea/host.c +++ b/drivers/usb/chipidea/host.c @@ -124,8 +124,11 @@ static int host_start(struct ci_hdrc *ci) hcd->power_budget = ci->platdata->power_budget; hcd->tpl_support = ci->platdata->tpl_support; - if (ci->phy || ci->usb_phy) + if (ci->phy || ci->usb_phy) { hcd->skip_phy_initialization = 1; + if (ci->usb_phy) + hcd->usb_phy = ci->usb_phy; + } ehci = hcd_to_ehci(hcd); ehci->caps = ci->hw_bank.cap; -- cgit v1.2.3