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path: root/drivers/usb/host/xhci-plat.c
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2025-03-14usb: host: xhci-plat: allow upper layers to signal power lossThéo Lebrun
Now that xhci_resume() exposes a power_lost boolean argument, expose that to all xhci-plat implementations. They are free to set it from wherever they want: - Their own resume() callback. - The xhci_plat_priv::resume_quirk() callback. Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20250205-s2r-cdns-v7-8-13658a271c3c@bootlin.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-03-14usb: xhci: change xhci_resume() parameters to explicit the desired infoThéo Lebrun
Previous signature was: int xhci_resume(struct xhci_hcd *xhci, pm_message_t msg); Internally, it extracted two information out of the message: - whether we are after hibernation: msg.event == PM_EVENT_RESTORE, - whether this is an auto resume: msg.event == PM_EVENT_AUTO_RESUME. First bulletpoint is somewhat wrong: driver wants to know if the device did lose power, it doesn't care about hibernation per se. Knowing that, refactor to ask upper layers the right questions: (1) "did we lose power?" and, (2) "is this an auto resume?". Change the signature to: int xhci_resume(struct xhci_hcd *xhci, bool power_lost, bool is_auto_resume); The goal is to allow some upper layers (cdns3-plat) to tell us when power was lost after system-wise suspend. Note that lost_power is ORed at the start of xhci_resume() to xhci->quirks & XHCI_RESET_ON_RESUME || xhci->broken_suspend. It is simpler to keep those checks inside of xhci_resume() instead of doing them at each caller of xhci_resume(). Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20250205-s2r-cdns-v7-7-13658a271c3c@bootlin.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-03-14usb: host: xhci-plat: mvebu: use ->quirks instead of ->init_quirk() funcThéo Lebrun
Compatible "marvell,armada3700-xhci" match data uses the struct xhci_plat_priv::init_quirk() function pointer to add XHCI_RESET_ON_RESUME as quirk on XHCI. Instead, use the struct xhci_plat_priv::quirks field. Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20250205-s2r-cdns-v7-1-13658a271c3c@bootlin.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-17usb: host: xhci-plat: add support compatible ID PNP0D15Chunfeng Yun
Add support compatible ID PNP0D15 which declare that the xHCI controller doesn't support standard debug capability. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/20250116125141.25856-1-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-13Merge 6.13-rc7 into usb-nextGreg Kroah-Hartman
We need the USB fixes in here as well for testing. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-11usb: host: xhci-plat: Assign shared_hcd->rsrc_startWangYuli
When inserting a USB device, examining hcd->rsrc_start can be helpful in identifying which hcd is mounted, as the physical address represented here is typically unique. The following code snippet demonstrates this: struct usb_hcd *hcd = bus_to_hcd(udev->bus); unsigned long long usb_hcd_addr = (unsigned long long)hcd->rsrc_start; However, this approach has limitations now. For USB hosts with an MMIO interface, the effectiveness of this method is restricted to USB 2.0. Because commit 3429e91a661e ("usb: host: xhci: add platform driver support") assigned res->start to hcd->rsrc_start. But shared_hcd->rsrc_start remains unassigned, which is also necessary in certain scenarios. Fixes: 3429e91a661e ("usb: host: xhci: add platform driver support") Co-developed-by: Xu Rao <raoxu@uniontech.com> Signed-off-by: Xu Rao <raoxu@uniontech.com> Signed-off-by: WangYuli <wangyuli@uniontech.com> Link: https://lore.kernel.org/r/186B9F56972457B4+20250107133854.172309-1-wangyuli@uniontech.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-12-23usb: host: xhci-plat: set skip_phy_initialization if software node has ↵Xu Yang
XHCI_SKIP_PHY_INIT property The source of quirk XHCI_SKIP_PHY_INIT comes from xhci_plat_priv.quirks or software node property. This will set skip_phy_initialization if software node also has XHCI_SKIP_PHY_INIT property. Fixes: a6cd2b3fa894 ("usb: host: xhci-plat: Parse xhci-missing_cas_quirk and apply quirk") Cc: stable <stable@kernel.org> Signed-off-by: Xu Yang <xu.yang_2@nxp.com> Link: https://lore.kernel.org/r/20241209111423.4085548-1-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-10-04usb: Switch back to struct platform_driver::remove()Uwe Kleine-König
After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/usb to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Link: https://lore.kernel.org/r/20240924084329.53094-2-u.kleine-koenig@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-11usb: host: xhci-plat: Parse xhci-missing_cas_quirk and apply quirkFrank Li
Parse software managed property 'xhci-skip-phy-init-quirk' and 'xhci-skip-phy-init-quirk' to apply related quirk. It allows usb glue layer driver apply these quirk. Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20240906-dwc-mp-v5-1-ea8ec6774e7b@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-06-20usb: host: xhci-plat: Add support for XHCI_WRITE_64_HI_LODaehwan Jung
xHCI specification 5.1 "Register Conventions" states that 64 bit registers should be written in low-high order. All writing operations in xhci is done low-high order following the spec. Add a new quirk to support workaround for high-low order. Signed-off-by: Daehwan Jung <dh10.jung@samsung.com> Link: https://lore.kernel.org/r/1718019553-111939-4-git-send-email-dh10.jung@samsung.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-01-27usb: host: xhci-plat: Add support for XHCI_SG_TRB_CACHE_SIZE_QUIRKPrashanth K
Upstream commit bac1ec551434 ("usb: xhci: Set quirk for XHCI_SG_TRB_CACHE_SIZE_QUIRK") introduced a new quirk in XHCI which fixes XHC timeout, which was seen on synopsys XHCs while using SG buffers. Currently this quirk can only be set using xhci private data. But there are some drivers like dwc3/host.c which adds adds quirks using software node for xhci device. Hence set this xhci quirk by iterating over device properties. Cc: stable@vger.kernel.org # 5.11 Fixes: bac1ec551434 ("usb: xhci: Set quirk for XHCI_SG_TRB_CACHE_SIZE_QUIRK") Signed-off-by: Prashanth K <quic_prashk@quicinc.com> Link: https://lore.kernel.org/r/20240116055816.1169821-3-quic_prashk@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-01-04usb: xhci-plat: fix usb disconnect issue after s4Yinbo Zhu
The xhci retaining bogus hardware states cause usb disconnect devices connected before hibernation(s4) and refer to the commit 'f3d478858be ("usb: ohci-platform: fix usb disconnect issue after s4")' which set flag "hibernated" as true when resume-from-hibernation and that the drivers will reset the hardware to get rid of any existing state and make sure resume from hibernation re-enumerates everything for xhci. Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn> Link: https://lore.kernel.org/r/20231228071113.1719-1-zhuyinbo@loongson.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-06usb: xhci: xhci-plat: Add support for BCM2711Stefan Wahren
With the introduction of a BCM2711 specific compatible, this also needs to be added to the xHCI driver. Signed-off-by: Stefan Wahren <wahrenst@gmx.net> Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://lore.kernel.org/r/20231205200531.8232-3-wahrenst@gmx.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-11-21USB: xhci-plat: fix legacy PHY double initJohan Hovold
Commits 7b8ef22ea547 ("usb: xhci: plat: Add USB phy support") and 9134c1fd0503 ("usb: xhci: plat: Add USB 3.0 phy support") added support for looking up legacy PHYs from the sysdev devicetree node and initialising them. This broke drivers such as dwc3 which manages PHYs themself as the PHYs would now be initialised twice, something which specifically can lead to resources being left enabled during suspend (e.g. with the usb_phy_generic PHY driver). As the dwc3 driver uses driver-name matching for the xhci platform device, fix this by only looking up and initialising PHYs for devices that have been matched using OF. Note that checking that the platform device has a devicetree node would currently be sufficient, but that could lead to subtle breakages in case anyone ever tries to reuse an ancestor's node. Fixes: 7b8ef22ea547 ("usb: xhci: plat: Add USB phy support") Fixes: 9134c1fd0503 ("usb: xhci: plat: Add USB 3.0 phy support") Cc: stable@vger.kernel.org # 4.1 Cc: Maxime Ripard <mripard@kernel.org> Cc: Stanley Chang <stanley_chang@realtek.com> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Tested-by: Stefan Eichenberger <stefan.eichenberger@toradex.com> Tested-by: Stanley Chang <stanley_chang@realtek.com> Link: https://lore.kernel.org/r/20231103164323.14294-1-johan+linaro@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-21usb: host: xhci-plat: fix possible kernel oops while resumingSergey Shtylyov
If this driver enables the xHC clocks while resuming from sleep, it calls clk_prepare_enable() without checking for errors and blithely goes on to read/write the xHC's registers -- which, with the xHC not being clocked, at least on ARM32 usually causes an imprecise external abort exceptions which cause kernel oops. Currently, the chips for which the driver does the clock dance on suspend/resume seem to be the Broadcom STB SoCs, based on ARM32 CPUs, as it seems... Found by Linux Verification Center (linuxtesting.org) with the Svace static analysis tool. Fixes: 8bd954c56197 ("usb: host: xhci-plat: suspend and resume clocks") Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20231019102924.2797346-19-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-07-25usb: Explicitly include correct DT includesRob Herring
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Acked-by: Herve Codina <herve.codina@bootlin.com> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230718143027.1064731-1-robh@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-06-23usb: host: xhci-plat: Set XHCI_STATE_REMOVING before resuming XHCI HCWesley Cheng
There are situations during the xhci_resume() sequence, which allows for re-initializing of the XHCI HC. However, in case the HCD is being removed, these operations may not be needed. Set the removal state before issuing the runtime PM get on the XHCI device, so that the XHCI resume routine will know when to bypass the re-init logic. Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com> Message-ID: <20230531222719.14143-3-quic_wcheng@quicinc.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-06-13xhci: get rid of XHCI_PLAT quirk that used to prevent MSI setupMathias Nyman
The XHCI_PLAT quirk was only needed to ensure non-PCI xHC host avoided setting up MSI interrupts in generic xhci codepaths. The MSI setup code is now moved to PCI specific xhci-pci.c file so the quirk is no longer needed. Remove setting the XHCI_PLAT quirk for HiSilocon SoC xHC, NVIDIA Tegra xHC, MediaTek xHC, the generic xhci-plat driver, and the checks for XHCI_PLAT in xhci-pci.c MSI setup code. Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Message-ID: <20230602144009.1225632-5-mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-30usb: xhci-plat: Convert to platform remove callback returning voidUwe Kleine-König
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Eventually after all drivers are converted, .remove_new() is renamed to .remove(). To convert the xhci-plat driver, change the prototype of xhci_plat_remove() to return void. As this function is exported and used by the xhci-rcar driver, convert this driver at the same time accordingly. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230530071913.2192214-5-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-13usb: xhci: plat: remove error log for failure to get usb-phyStanley Chang
Remove this log to avoid non-error conditions. If CONFIG_USB_PHY is disabled, the following error message appears: [ 0.231609] xhci-hcd f10f0000.usb3: xhci_plat_probe get usb3phy fail (ret=-6) [ 0.239716] xhci-hcd f10f8000.usb3: xhci_plat_probe get usb3phy fail (ret=-6) In this case, devm_usb_get_phy_by_phandle is declared static inline and returns -ENXIO. It is easy to pinpoint the failure to get the usb-phy using the debug log in drivers/usb/phy/phy.c. Therefore, it can be removed. Signed-off-by: Stanley Chang <stanley_chang@realtek.com> Tested-by: Klaus Kudielka <klaus.kudielka@gmail.com> Link: https://lore.kernel.org/r/20230510075129.28047-1-stanley_chang@realtek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-13USB: Extend pci resume function to handle PM eventsBasavaraj Natikar
Currently, the pci_resume method has only a flag indicating whether the system is resuming from hibernation. In order to handle all PM events like AUTO_RESUME (runtime resume from device in D3), RESUME (system resume from s2idle, S3 or S4 states) etc change the pci_resume method to handle all PM events. Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20230428140056.1318981-2-Basavaraj.Natikar@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-20usb: xhci: plat: Add USB 3.0 phy supportStanley Chang
For Realtek SoC, the usb xhci uses different driver for u2phy and u3phy. Therefore, add a hook to retrieve the USB 3.0 PHY to XHCI plat. Signed-off-by: Stanley Chang <stanley_chang@realtek.com> Link: https://lore.kernel.org/r/20230407060731.20537-1-stanley_chang@realtek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-20usb: host: xhci-plat: Use dev_is_pci() helperNobuhiro Iwamatsu
Use common dev_is_pci() helper for checking PCI devices. And if CONFIG_PCI is not defined, dev_is_pci returns false. Therefore, CONFIG_PCI is also unnecessary, so remove it. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp> Link: https://lore.kernel.org/r/20230405234605.2310155-1-nobuhiro1.iwamatsu@toshiba.co.jp Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-14xhci: host: potential NULL dereference in xhci_generic_plat_probe()Dan Carpenter
It's possible to exit the loop with "sysdev" set to NULL. In that case we should use "&pdev->dev". Fixes: ec5499d338ec ("xhci: split out rcar/rz support from xhci-plat.c") Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/Y+T4kTcJwRwxNHJq@kili Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-02xhci: split out rcar/rz support from xhci-plat.cArnd Bergmann
The USB_XHCI_RZV2M and USB_RENESAS_USB3 select other drivers based on the enabled SoC types, which leads to build failures when the dependencies are not met: WARNING: unmet direct dependencies detected for USB_RZV2M_USB3DRD Depends on [n]: USB_SUPPORT [=y] && USB_GADGET [=n] && (ARCH_R9A09G011 [=n] || COMPILE_TEST [=y]) Selected by [m]: - USB_XHCI_RZV2M [=m] && USB_SUPPORT [=y] && USB [=y] && USB_XHCI_HCD [=m] && USB_XHCI_PLATFORM [=m] && (ARCH_R9A09G011 [=n] || COMPILE_TEST [=y]) ERROR: modpost: "rzv2m_usb3drd_reset" [drivers/usb/host/xhci-plat-hcd.ko] undefined! The xhci-rcar driver has a reverse dependency with the xhci core, and it depends on the UDC driver in turn. To untangle this, make the xhci-rcar.ko driver a standalone module that just calls into the xhci-plat.ko module like other drivers do. This allows handling the dependency on the USB_RZV2M_USB3DRD driver to only affect the xhci-rcar module and simplify the xhci-plat module. It also allows leaving out the hacks for broken dma mask and nested devices from the rcar side and keep that only in the generic xhci driver. As a future cleanup, the marvell and dwc3 specific bits of xhci-plat.c could be moved out as well, but that is not required for this bugfix. Fixes: c52c9acc415e ("xhci: host: Add Renesas RZ/V2M SoC support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20230131150531.12347-1-arnd@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-25xhci: host: Add Renesas RZ/V2M SoC supportBiju Das
RZ/V2M is similar to R-Car XHCI but it doesn't require any firmware, we need to reset the USB Host reset release in DRD Module before accessing host registers. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20230121145853.4792-10-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-25usb: host: xhci-plat: Add reset supportBiju Das
Add optional reset support. This is in preparation to adding USB xHCI support for RZ/V2M SoC. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230121145853.4792-9-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-25usb: host: xhci-plat: Improve clock handling in probe()Biju Das
It is always better to acquire all the clock resources first and then do the clock operations. This patch acquires all the optional clocks first and then calls corresponding prepare_enable(). There is no functional change. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230121145853.4792-8-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-09-05Merge 6.0-rc4 into usb-nextGreg Kroah-Hartman
We need the USB fixes in here and this resolves the merge issue in: drivers/usb/dwc3/gadget.c Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-31usb: host: xhci-plat: suspend/resume clks for brcmJustin Chen
The xhci_plat_brcm xhci block can enter suspend with clock disabled to save power and re-enable them on resume. Make use of the XHCI_SUSPEND_RESUME_CLKS quirk to do so. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Justin Chen <justinpopo6@gmail.com> Link: https://lore.kernel.org/r/1660170455-15781-3-git-send-email-justinpopo6@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-31usb: host: xhci-plat: suspend and resume clocksJustin Chen
Introduce XHCI_SUSPEND_RESUME_CLKS quirk as a means to suspend and resume clocks if the hardware is capable of doing so. We assume that clocks will be needed if the device may wake. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Justin Chen <justinpopo6@gmail.com> Link: https://lore.kernel.org/r/1660170455-15781-2-git-send-email-justinpopo6@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-25xhci: Fix null pointer dereference in remove if xHC has only one roothubMathias Nyman
The remove path in xhci platform driver tries to remove and put both main and shared hcds even if only a main hcd exists (one roothub) This causes a null pointer dereference in reboot for those controllers. Check that the shared_hcd exists before trying to remove it. Fixes: e0fe986972f5 ("usb: host: xhci-plat: prepare operation w/o shared hcd") Reported-by: Alexey Sheplyakov <asheplyakov@basealt.ru> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20220825150840.132216-2-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-05-12usb: host: xhci-plat: omit shared hcd if either root hub has no portsHeiner Kallweit
Activate the just added extension for xhci-plat and omit the shared hcd if either of the root hubs has no ports. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20220511220450.85367-6-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-05-12usb: host: xhci-plat: prepare operation w/o shared hcdHeiner Kallweit
This patch prepares xhci-plat for the following scenario - If either of the root hubs has no ports, then omit shared hcd - Main hcd can be USB3 if there are no USB2 ports Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20220511220450.85367-5-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-05-12usb: host: xhci-plat: create shared hcd after having added main hcdHeiner Kallweit
This patch is in preparation of an extension where in case of a root hub with no ports no shared hcd will be created. Whether one of the root hubs has no ports we figure our in usb_add_hcd() for the primary hcd. Therefore create the shared hcd only after this call. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20220511220450.85367-4-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-03-28Merge tag 'char-misc-5.18-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc and other driver updates from Greg KH: "Here is the big set of char/misc and other small driver subsystem updates for 5.18-rc1. Included in here are merges from driver subsystems which contain: - iio driver updates and new drivers - fsi driver updates - fpga driver updates - habanalabs driver updates and support for new hardware - soundwire driver updates and new drivers - phy driver updates and new drivers - coresight driver updates - icc driver updates Individual changes include: - mei driver updates - interconnect driver updates - new PECI driver subsystem added - vmci driver updates - lots of tiny misc/char driver updates All of these have been in linux-next for a while with no reported problems" * tag 'char-misc-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (556 commits) firmware: google: Properly state IOMEM dependency kgdbts: fix return value of __setup handler firmware: sysfb: fix platform-device leak in error path firmware: stratix10-svc: add missing callback parameter on RSU arm64: dts: qcom: add non-secure domain property to fastrpc nodes misc: fastrpc: Add dma handle implementation misc: fastrpc: Add fdlist implementation misc: fastrpc: Add helper function to get list and page misc: fastrpc: Add support to secure memory map dt-bindings: misc: add fastrpc domain vmid property misc: fastrpc: check before loading process to the DSP misc: fastrpc: add secure domain support dt-bindings: misc: add property to support non-secure DSP misc: fastrpc: Add support to get DSP capabilities misc: fastrpc: add support for FASTRPC_IOCTL_MEM_MAP/UNMAP misc: fastrpc: separate fastrpc device from channel context dt-bindings: nvmem: brcm,nvram: add basic NVMEM cells dt-bindings: nvmem: make "reg" property optional nvmem: brcm_nvram: parse NVRAM content into NVMEM cells nvmem: dt-bindings: Fix the error of dt-bindings check ...
2022-03-10Merge tag 'phy-for-5.18' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy into char-misc-next Vinod writes: phy-for-5.18 - New support: - Mediatek tphy support for MT8186 - Qualcomm usb phy support for sc8180x and sc8280xp - Qualcomm ufs phy support for sc8180x and sc8280xp - Qualcomm usb phy support for MSM8953 - Cadence D-Phy Rx support - Sun4i support for USB phy - Rockchip naneng combo phy support for RK3568 - Qualcomm eDP PHY for sc7280 - Updates: - wake on support for Synopsis XHCI controllers - Yamilify Qualcomm USB HS phy binding - Charger detection support for TI tusb1210 * tag 'phy-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: (53 commits) phy: qcom-qmp: add sc8280xp UFS PHY dt-bindings: phy: qcom,qmp: add sc8180x and sc8280xp ufs compatibles phy: qcom-snps: Add sc8280xp support dt-bindings: phy: qcom,usb-snps-femto-v2: Add sc8180x and sc8280xp dt-bindings: Revert "dt-bindings: soc: grf: add naneng combo phy register compatible" phy: dt-bindings: Add Cadence D-PHY Rx bindings phy: dt-bindings: cdns,dphy: add power-domains property phy: dt-bindings: Convert Cadence DPHY binding to YAML phy: cadence: Add Cadence D-PHY Rx driver dt-bindings: phy: renesas,usb2-phy: Document RZ/V2L phy bindings Revert "PCI: aardvark: Fix initialization with old Marvell's Arm Trusted Firmware" Revert "usb: host: xhci: mvebu: make USB 3.0 PHY optional for Armada 3720" Revert "ata: ahci: mvebu: Make SATA PHY optional for Armada 3720" phy: marvell: phy-mvebu-a3700-comphy: Add native kernel implementation phy: marvell: phy-mvebu-a3700-comphy: Remove port from driver configuration phy: phy-brcm-usb: fixup BCM4908 support dt-bindings: phy: mediatek,tphy: Add compatible for MT8192 phy: ti: tusb1210: Add charger detection phy: ti: tusb1210: Add a delay between power-on and restoring the phy-parameters phy: ti: tusb1210: Drop tusb->vendor_specific2 != 0 check from tusb1210_power_on() ...
2022-02-25Revert "usb: host: xhci: mvebu: make USB 3.0 PHY optional for Armada 3720"Pali Rohár
This reverts commit 3241929b67d28c83945d3191c6816a3271fd6b85. Armada 3720 phy driver (phy-mvebu-a3700-comphy.c) does not return -EOPNOTSUPP from phy_power_on() callback anymore. So remove XHCI_SKIP_PHY_INIT flag from xhci_mvebu_a3700_plat_setup() and then also whole xhci_mvebu_a3700_plat_setup() function which is there just to handle -EOPNOTSUPP for XHCI_SKIP_PHY_INIT. xhci plat_setup callback is not used by any other xhci plat driver, so remove this callback completely. Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Marek Behún <kabel@kernel.org> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20220203214444.1508-5-kabel@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-01-31Merge tag 'v5.17-rc2' into usb-nextGreg Kroah-Hartman
We need the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-01-26usb: host: xhci-plat: Remove useless DMA-32 fallback configurationChristophe JAILLET
As stated in [1], dma_set_mask() with a 64-bit mask never fails if dev->dma_mask is non-NULL. So, if it fails, the 32 bits case will also fail for the same reason. Simplify code and remove some dead code accordingly. [1]: https://lore.kernel.org/linux-kernel/YL3vSPK5DXTNvgdx@infradead.org/#t Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/178f859197bebb385609a7c9458fb972ed312e5d.1642233968.git.christophe.jaillet@wanadoo.fr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-01-26usb: xhci-plat: fix crash when suspend if remote wake enableFrank Li
Crashed at i.mx8qm platform when suspend if enable remote wakeup Internal error: synchronous external abort: 96000210 [#1] PREEMPT SMP Modules linked in: CPU: 2 PID: 244 Comm: kworker/u12:6 Not tainted 5.15.5-dirty #12 Hardware name: Freescale i.MX8QM MEK (DT) Workqueue: events_unbound async_run_entry_fn pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : xhci_disable_hub_port_wake.isra.62+0x60/0xf8 lr : xhci_disable_hub_port_wake.isra.62+0x34/0xf8 sp : ffff80001394bbf0 x29: ffff80001394bbf0 x28: 0000000000000000 x27: ffff00081193b578 x26: ffff00081193b570 x25: 0000000000000000 x24: 0000000000000000 x23: ffff00081193a29c x22: 0000000000020001 x21: 0000000000000001 x20: 0000000000000000 x19: ffff800014e90490 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000002 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000960 x9 : ffff80001394baa0 x8 : ffff0008145d1780 x7 : ffff0008f95b8e80 x6 : 000000001853b453 x5 : 0000000000000496 x4 : 0000000000000000 x3 : ffff00081193a29c x2 : 0000000000000001 x1 : 0000000000000000 x0 : ffff000814591620 Call trace: xhci_disable_hub_port_wake.isra.62+0x60/0xf8 xhci_suspend+0x58/0x510 xhci_plat_suspend+0x50/0x78 platform_pm_suspend+0x2c/0x78 dpm_run_callback.isra.25+0x50/0xe8 __device_suspend+0x108/0x3c0 The basic flow: 1. run time suspend call xhci_suspend, xhci parent devices gate the clock. 2. echo mem >/sys/power/state, system _device_suspend call xhci_suspend 3. xhci_suspend call xhci_disable_hub_port_wake, which access register, but clock already gated by run time suspend. This problem was hidden by power domain driver, which call run time resume before it. But the below commit remove it and make this issue happen. commit c1df456d0f06e ("PM: domains: Don't runtime resume devices at genpd_prepare()") This patch call run time resume before suspend to make sure clock is on before access register. Reviewed-by: Peter Chen <peter.chen@kernel.org> Cc: stable <stable@vger.kernel.org> Signed-off-by: Frank Li <Frank.Li@nxp.com> Testeb-by: Abel Vesa <abel.vesa@nxp.com> Link: https://lore.kernel.org/r/20220110172738.31686-1-Frank.Li@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03usb: host: xhci: mvebu: make USB 3.0 PHY optional for Armada 3720Pali Rohár
Older ATF does not provide SMC call for USB 3.0 phy power on functionality and therefore initialization of xhci-hcd is failing when older version of ATF is used. In this case phy_power_on() function returns -EOPNOTSUPP. [ 3.108467] mvebu-a3700-comphy d0018300.phy: unsupported SMC call, try updating your firmware [ 3.117250] phy phy-d0018300.phy.0: phy poweron failed --> -95 [ 3.123465] xhci-hcd: probe of d0058000.usb failed with error -95 This patch introduces a new plat_setup callback for xhci platform drivers which is called prior calling usb_add_hcd() function. This function at its beginning skips PHY init if hcd->skip_phy_initialization is set. Current init_quirk callback for xhci platform drivers is called from xhci_plat_setup() function which is called after chip reset completes. It happens in the middle of the usb_add_hcd() function and therefore this callback cannot be used for setting if PHY init should be skipped or not. For Armada 3720 this patch introduce a new xhci_mvebu_a3700_plat_setup() function configured as a xhci platform plat_setup callback. This new function calls phy_power_on() and in case it returns -EOPNOTSUPP then XHCI_SKIP_PHY_INIT quirk is set to instruct xhci-plat to skip PHY initialization. This patch fixes above failure by ignoring 'not supported' error in xhci-hcd driver. In this case it is expected that phy is already power on. It fixes initialization of xhci-hcd on Espressobin boards where is older Marvell's Arm Trusted Firmware without SMC call for USB 3.0 phy power. This is regression introduced in commit bd3d25b07342 ("arm64: dts: marvell: armada-37xx: link USB hosts with their PHYs") where USB 3.0 phy was defined and therefore xhci-hcd on Espressobin with older ATF started failing. Fixes: bd3d25b07342 ("arm64: dts: marvell: armada-37xx: link USB hosts with their PHYs") Cc: <stable@vger.kernel.org> # 5.1+: ea17a0f153af: phy: marvell: comphy: Convert internal SMCC firmware return codes to errno Cc: <stable@vger.kernel.org> # 5.1+: f768e718911e: usb: host: xhci-plat: add priv quirk for skip PHY initialization Tested-by: Tomasz Maciej Nowak <tmn505@gmail.com> Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> # On R-Car Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> # xhci-plat Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Pali Rohár <pali@kernel.org> Link: https://lore.kernel.org/r/20210201150803.7305-1-pali@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09usb: xhci: Set quirk for XHCI_SG_TRB_CACHE_SIZE_QUIRKTejas Joglekar
This commit uses the private data passed by parent device to set the quirk for Synopsys xHC. This patch fixes the SNPS xHC hang issue when the data is scattered across small buffers which does not make atleast MPS size for given TRB cache size of SNPS xHC. Signed-off-by: Tejas Joglekar <joglekar@synopsys.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20201208092912.1773650-2-mathias.nyman@linux.intel.com Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-20usb: host: xhci-plat: improve the comments for xhci_plat_suspendPeter Chen
To reflect the current code status. Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20200918131752.16488-7-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-20usb: host: xhci-plat: add wakeup entry at sysfsPeter Chen
With this change, there will be a wakeup entry at /sys/../power/wakeup, and the user could use this entry to choose whether enable xhci wakeup features (wake up system from suspend) or not. Tested-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20200918131752.16488-6-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-20usb: host: xhci-plat: add priv quirk for skip PHY initializationPeter Chen
Some DRD controllers (eg, dwc3 & cdns3) have PHY management at their own driver to cover both device and host mode, so add one priv quirk for such users to skip PHY management from HCD core. Reviewed-by: Jun Li <jun.li@nxp.com> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20200918131752.16488-5-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-20usb: host: xhci-plat: delete the unnecessary codePeter Chen
The if {} condition is duplicated with outer if {} condition. Reviewed-by: Jun Li <jun.li@nxp.com> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20200918131752.16488-4-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-20usb: host: xhci-plat: add .suspend_quirk for struct xhci_plat_privPeter Chen
Some platforms (eg cdns3) may have special sequences between xhci_bus_suspend and xhci_suspend, add .suspend_quick for it. Reviewed-by: Jun Li <jun.li@nxp.com> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20200918131752.16488-3-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-20usb: host: xhci-plat: add platform data supportPeter Chen
Some xhci hosts (eg dwc3 and cdns3) do not use OF to create platform device, they create xhci-plat platform device runtime. And these platforms may also have quirks, and the quirks could be supplied by their parent device through platform data. Reviewed-by: Jun Li <jun.li@nxp.com> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20200918131752.16488-2-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15usb: host: xhci-plat: Replace HTTP links with HTTPS onesAlexander A. Klimov
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Link: https://lore.kernel.org/r/20200711135813.19798-1-grandmaster@al2klimov.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit (git 2.34.1) at 2025-07-16 00:21:42 +0000