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path: root/drivers/usb/host/xhci-plat.h
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* usb: host: xhci: mvebu: make USB 3.0 PHY optional for Armada 3720Pali Rohár2021-02-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* usb: host: xhci-plat: add .suspend_quirk for struct xhci_plat_privPeter Chen2020-09-201-0/+1
| | | | | | | | | | | 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>
* USB: host: Use the correct style for SPDX License IdentifierNishad Kamdar2020-04-161-1/+1
| | | | | | | | | | | | | | | | This patch corrects the SPDX License Identifier style in header files related to USB host controller drivers. For C header files Documentation/process/license-rules.rst mandates C-like comments (opposed to C source files where C++ style should be used). Changes made by using a script provided by Joe Perches here: https://lkml.org/lkml/2019/2/7/46. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com> Link: https://lore.kernel.org/r/20200404092135.GA4522@nishad Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: xhci-plat: add quirks member into struct xhci_plat_privYoshihiro Shimoda2019-09-031-0/+2
| | | | | | | | | | | To simplify adding xhci->quirks instead of the .init_quirk() function, this patch adds a new parameter "quirks" into the struct xhci_plat_priv. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/1567425698-27560-2-git-send-email-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: host: xhci: Remove redundant license textGreg Kroah-Hartman2017-11-071-4/+0
| | | | | | | | | | | | | | | | | | | Now that the SPDX tag is in all USB files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: add SPDX identifiers to all remaining files in drivers/usb/Greg Kroah-Hartman2017-11-041-0/+1
| | | | | | | | | | | | | | | | | | | | | It's good to have SPDX identifiers in all files to make it easier to audit the kernel tree for correct licenses. Update the drivers/usb/ and include/linux/usb* files with the correct SPDX license identifier based on the license text in the file itself. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This work is based on a script and data from Thomas Gleixner, Philippe Ombredanne, and Kate Stewart. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: xhci-plat: add resume_quirk()Yoshihiro Shimoda2017-04-191-0/+1
| | | | | | | | | This patch adds resume_quirk() to do platform specific process in resume timing. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: xhci: plat: finally get rid of xhci_plat_type_is()Felipe Balbi2016-04-261-18/+0
| | | | | | | | | | Now that there are no more users for xhci_plat_type_is(), we can safely remove it. Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: xhci: plat: add ->plat_start() and ->init_quirk() methodsFelipe Balbi2016-04-261-0/+2
| | | | | | | | | | | these two methods will be used to hide platform-specific details so we can get rid of xhci_plat_type_is() in a later patch. Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: xhci-plat: Make enum xhci_plat_type start at a non zero valuePeter Griffin2016-04-131-1/+1
| | | | | | | | | | | | | | | | | | | | | Otherwise generic-xhci and xhci-platform which have no data get wrongly detected as XHCI_PLAT_TYPE_MARVELL_ARMADA by xhci_plat_type_is(). This fixes a regression in v4.5 for STiH407 family SoC's which use the synopsis dwc3 IP, whereby the disable_clk error path gets taken due to wrongly being detected as XHCI_PLAT_TYPE_MARVELL_ARMADA and the hcd never gets added. I suspect this will also fix other dwc3 DT platforms such as Exynos, although I've only tested on STih410 SoC. Fixes: 4efb2f694114 ("usb: host: xhci-plat: add struct xhci_plat_priv") Cc: stable@vger.kernel.org Cc: gregory.clement@free-electrons.com Cc: yoshihiro.shimoda.uh@renesas.com Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: xhci-plat: add support for the R-Car H3 xHCI controllersYoshihiro Shimoda2015-12-011-0/+1
| | | | | | | | | | The R-Car H3 has two xHCI controllers. This SoC is compatible with R-Car Gen2 SoCs, however this SoC doesn't need some specific registers setting, and need a new firmware. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: xhci-plat: add firmware_name in xhci_plat_privYoshihiro Shimoda2015-12-011-0/+1
| | | | | | | | | This patch adds a member "firmware_name" in struct xhci_plat_priv to simplify the code to match specific firmware name. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: xhci-plat: add struct xhci_plat_privYoshihiro Shimoda2015-12-011-0/+37
This patch adds struct xhci_plat_priv to simplify the code to match platform specific variables. For now, this patch adds a member "type" in the structure. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-13 23:17:53 +0000