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path: root/drivers/usb/host/xhci-rcar.c
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2022-03-03usb: Drop commas after SoC match table sentinelsGeert Uytterhoeven1-1/+1
It does not make sense to have a comma after a sentinel, as any new elements must be added before the sentinel. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/5cae409f647272a5679291ebc0000bfeccc14160.1646311762.git.geert+renesas@glider.be Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-27usb: host: xhci-rcar: Don't reload firmware after the completionYoshihiro Shimoda1-0/+7
According to the datasheet, "Upon the completion of FW Download, there is no need to write or reload FW.". Otherwise, it's possible to cause unexpected behaviors. So, adds such a condition. Fixes: 4ac8918f3a73 ("usb: host: xhci-plat: add support for the R-Car H2 and M2 xHCI controllers") Cc: stable@vger.kernel.org # v3.17+ Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/20210827063227.81990-1-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-25usb: xhci-rcar: convert to readl_poll_timeout_atomic()Chunfeng Yun1-31/+12
Use readl_poll_timeout_atomic() to simplify code Cc: Mathias Nyman <mathias.nyman@linux.intel.com> Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/1600668815-12135-4-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-03usb: host: xhci-rcar: Use xhci_plat_priv.quirks instead of code settingsYoshihiro Shimoda1-28/+0
This patch uses xhci_plat_priv.quirks to simplify. The previous code had conditions to set some quirks in xhci_rcar_init_quirk(). But, the xhci_rcar_init_quirk() is called at the same conditions. So, no behavior change. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/1567425698-27560-4-git-send-email-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28usb: host: xhci: rcar: Fix typo in compatible string matchingGeert Uytterhoeven1-1/+1
It's spelled "renesas", not "renensas". Due to this typo, RZ/G1M and RZ/G1N were not covered by the check. Fixes: 2dc240a3308b ("usb: host: xhci: rcar: retire use of xhci_plat_type_is()") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: stable <stable@vger.kernel.org> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/20190827125112.12192-1-geert+renesas@glider.be Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-02usb: host: xhci-rcar: Fix timeout in xhci_suspend()Yoshihiro Shimoda1-2/+7
When a USB device is connected to the host controller and the system enters suspend, the following error happens in xhci_suspend(): xhci-hcd ee000000.usb: WARN: xHC CMD_RUN timeout Since the firmware/internal CPU control the USBSTS.STS_HALT and the process speed is down when the roothub port enters U3, long delay for the handshake of STS_HALT is neeed in xhci_suspend(). So, this patch adds to set the XHCI_SLOW_SUSPEND. Fixes: 435cc1138ec9 ("usb: host: xhci-plat: set resume_quirk() for R-Car controllers") Cc: <stable@vger.kernel.org> # v4.12+ Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/1564734815-17964-1-git-send-email-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-19usb: host: xhci-rcar: Add XHCI_TRUST_TX_LENGTH quirkYasushi Asano1-0/+1
When plugging BUFFALO LUA4-U3-AGT USB3.0 to Gigabit Ethernet LAN Adapter, warning messages filled up dmesg. [ 101.098287] xhci-hcd ee000000.usb: WARN Successful completion on short TX for slot 1 ep 4: needs XHCI_TRUST_TX_LENGTH quirk? [ 101.117463] xhci-hcd ee000000.usb: WARN Successful completion on short TX for slot 1 ep 4: needs XHCI_TRUST_TX_LENGTH quirk? [ 101.136513] xhci-hcd ee000000.usb: WARN Successful completion on short TX for slot 1 ep 4: needs XHCI_TRUST_TX_LENGTH quirk? Adding the XHCI_TRUST_TX_LENGTH quirk resolves the issue. Signed-off-by: Yasushi Asano <yasano@jp.adit-jv.com> Signed-off-by: Spyridon Papageorgiou <spapageorgiou@de.adit-jv.com> Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-06usb: host: xhci-rcar: Add a condition check about PLL activeYoshihiro Shimoda1-0/+26
This patch adds a condition check about the PLL acvice of this controller. Otherwise, the controller might cause hang when any USB clocks are not supplied yet and accesses the xHCI registers. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-06usb: host: xhci-rcar: Simplify getting the firmware name for R-Car Gen3Yoshihiro Shimoda1-15/+2
This patch simplifies getting the firmware name for R-Car Gen3. Almost all R-Car Gen3 USB3.0 Host controllers use "V3". But, r8a7795 ES1.x SoCs only should use "V2". Since the xhci-plat already has the firmware_name of R-Car Gen3 as "V3", the xhci-rcar doesn't need some members of rcar_quirks_match. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-08usb: host: xhci-rcar: add support for r8a77965Yoshihiro Shimoda1-0/+4
This patch adds support for r8a77965 (R-Car M3-N). Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Rob Herring <robh@kernel.org> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-07USB: host: xhci: Remove redundant license textGreg Kroah-Hartman1-4/+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>
2017-11-04USB: add SPDX identifiers to all remaining files in drivers/usb/Greg Kroah-Hartman1-0/+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>
2017-08-16usb: host: xhci: rcar: Add support for R-Car H3 ES2.0Yoshihiro Shimoda1-1/+6
This patch adds support for R-Car H3 ES2.0. Since this SoC revision (or later) should use the V3 firmware, the driver needs to check the revision via soc_device_match(). 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>
2017-08-16usb: host: xhci: rcar: Add firmware_name selection by soc_device_match()Yoshihiro Shimoda1-1/+32
This patch adds firmware_name selection by soc_device_match() to use other firmware name in the future. (For now, using the firmware is the same as before.) 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>
2017-04-19usb: host: xhci-plat: set resume_quirk() for R-Car controllersYoshihiro Shimoda1-0/+11
This patch sets resume_quirk() for R-Car controllers to re-download the firmware in resume timing. Otherwise, if the controller's power is down in suspend timing, the firmware in the controller goes away, and then the controller doesn't work after resume. 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>
2016-11-14usb: host: xhci: plat: add support for Renesas r8a7796 SoCYoshihiro Shimoda1-0/+1
This patch adds support for Renesas r8a7796 SoC. This SoC is not compatible with r8a7795 because using firmware version differs. Since the "V2" firmware can be used on both r8a7795 (es1.x) and r8a7796, the "renesas,rcar-gen3-xhci" keeps to use the "V2" for now. 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>
2016-11-14usb: host: xhci: rcar: add a new firmware version for r8a7796Yoshihiro Shimoda1-0/+3
This patch adds a new firmware version "V3" for r8a7796. This patch also adds explanation of each version's information. 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>
2016-04-26usb: host: xhci: rcar: retire use of xhci_plat_type_is()Felipe Balbi1-1/+33
We're preparing to remove xhci_plat_type_is() in favor of a better approach where we define function pointers ahead of time. This will let us make assumptions about which platforms we're running on and which platform-specific functions we should call. Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> [delete extra comma in function parameters -Mathias] Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-01usb: host: xhci-plat: add support for the R-Car H3 xHCI controllersYoshihiro Shimoda1-0/+7
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>
2015-12-01usb: host: xhci-rcar: Change code for new SoCsYoshihiro Shimoda1-14/+23
This patch changes code to ease the addition of next generation SoCs. 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>
2014-07-09usb: host: xhci-plat: add support for the R-Car H2 and M2 xHCI controllersYoshihiro Shimoda1-0/+148
The R-Car H2 and M2 SoCs come with an xHCI controller that requires some specific initializations related to the firmware downloading and some specific registers. This patch adds the support for this special configuration as an xHCI quirk executed during probe and start. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Cc: "mathias.nyman@intel.com" <mathias.nyman@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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