summaryrefslogtreecommitdiffstats
path: root/drivers/usb/mtu3/mtu3_core.c
Commit message (Collapse)AuthorAgeFilesLines
* usb: mtu3: fix missing include of mtu3_dr.hBen Dooks (Codethink)2019-10-271-0/+1
| | | | | | | | | | | | | | The declarations of ssusb_gadget_{init,exit} are in the mtu3_dr.h file but the code does that implements them does not include this. Add the include to fix the following sparse warnigns: drivers/usb/mtu3/mtu3_core.c:825:5: warning: symbol 'ssusb_gadget_init' was not declared. Should it be static? drivers/usb/mtu3/mtu3_core.c:925:6: warning: symbol 'ssusb_gadget_exit' was not declared. Should it be static? Acked-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
* usb: Remove dev_err() usage after platform_get_irq()Stephen Boyd2019-07-301-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We don't need dev_err() messages when platform_get_irq() fails now that platform_get_irq() prints an error message itself when something goes wrong. Let's remove these prints with a simple semantic patch. // <smpl> @@ expression ret; struct platform_device *E; @@ ret = ( platform_get_irq(E, ...) | platform_get_irq_byname(E, ...) ); if ( \( ret < 0 \| ret <= 0 \) ) { ( -if (ret != -EPROBE_DEFER) -{ ... -dev_err(...); -... } | ... -dev_err(...); ) ... } // </smpl> While we're here, remove braces on if statements that only have one statement (manually). Signed-off-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/20190730181557.90391-47-swboyd@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: mtu3: add tracepoints to help debugChunfeng Yun2019-03-261-0/+5
| | | | | | | | | This patch implements a few initial tracepoints for the mtu3 driver. More traces can be added as necessary in order to ease the task of debugging. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: mtu3: add debugfs interface filesChunfeng Yun2019-03-261-0/+3
| | | | | | | | | | | This adds more debugfs consumers. The debugfs entries read some important registers, fifo status, QMU ring, endpoint status, and IPPC probe interface to get internal status. With these entries, users can check the registers, endpoint and GPD used during run time. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: mtu3: supports new QMU formatChunfeng Yun2019-03-261-0/+5
| | | | | | | | In order to support U3gen2 ISOC transfer upto 96DPs, extend the data buffer length. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: mtu3: fix transfer error of USB3 Gen2 isocChunfeng Yun2019-03-261-6/+8
| | | | | | | | | To support USB3 Gen2 ISOC, the registers of TXCSR1 and RXCSR1 are adjusted to support greater maxpkt and mult value, this patch fix this issue Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: mtu3: clear SOFTCONN when clear USB3_EN if work as HS modeChunfeng Yun2018-12-051-0/+2
| | | | | | | | | | | When the controller supports SS mode, but works as HS mode, the SOFTCONN will not be cleared automatically when clear USB3_EN by default, this cause an issue that can't disconnect from host, so clear SOFTCONN when clear USB3_EN when the class driver want to disable the D+ pullup. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: mtu3: enable SETUPENDISR interruptChunfeng Yun2018-12-051-1/+1
| | | | | | | | | If the controller receives a new SETUP during SETUP data stage, and will generate SETUPENDISR interrupt, the driver should abort the current SETUP command and process the new one. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: mtu3: fix the issue about SetFeature(U1/U2_Enable)Chunfeng Yun2018-12-051-1/+3
| | | | | | | | | | | Fix the issue: device doesn't accept LGO_U1/U2: 1. set SW_U1/U2_ACCEPT_ENABLE to eanble controller to accept LGO_U1/U2 by default; 2. enable/disable controller to initiate requests for transition into U1/U2 by SW_U1/U2_REQUEST_ENABLE instead of SW_U1/U2_ACCEPT_ENABLE; Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: mtu3: enable hardware remote wakeup from L1 automaticallyChunfeng Yun2018-12-051-7/+3
| | | | | | | | Enable hardware remote wakeup from L1 automatically based on the FIFO status, instead of manual way. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: mtu3: remove QMU checksumChunfeng Yun2018-12-051-2/+0
| | | | | | | | The QMU checksum calculation is redundant, mostly used by debug, so remove it here. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge 4.19-rc4 into usb-nextGreg Kroah-Hartman2018-09-161-1/+5
|\ | | | | | | | | | | We need the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * usb: mtu3: fix error of xhci port id when enable U3 dual roleChunfeng Yun2018-09-051-1/+5
| | | | | | | | | | | | | | | | | | | | | | If dual role mode is enabled, when switch u3port0 to device mode, it will affect port id calculation of host(xHCI), specially when host supports multi U2 ports or U3 ports, so need enable its dual role mode, and fix it here. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usb: mtu3: disable vbus rise/fall interrupts of ltssmChunfeng Yun2018-09-101-2/+2
|/ | | | | | | | | | | | | | The vbus rise & fall interrupts are used to enable and disable U3 function of device automatically, this cause some issues when class driver is initialized as deactivated, and will skip over software-controlled connect by pullup(), but UDC wants to keep disconnect until usb_gadget_activate() is called which calls pullup() if needed. So we disable vbus rise & fall interrupts and just use pullup() to enable & disable U3 function, and reset mtu3 state when disconnect instead when vbus fall. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: mtu3: reset gadget when VBUS_FALL interrupt arisesChunfeng Yun2018-05-241-1/+3
| | | | | | | | When VBUS_FALL interrupt arises, it means U3 device is disconnected with host, so need reset status of gadget Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: mtu3: fix uncontinuous SeqN issue after disable EPChunfeng Yun2018-05-241-2/+12
| | | | | | | | | Reset EP when disable it to reset data toggle for U2 EP, and SeqN, flow control status etc for U3 EP, this can avoid issue of uncontinuous SeqN Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: mtu3: re-enable controller to accept LPM request after LPM resumeChunfeng Yun2018-05-241-1/+7
| | | | | | | | | After the controller receives a LPM request, it will reject the LPM request, and need software to re-enable it after LPM resume if the controller doesn't remote wakeup from L1 automatically Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: mtu3: Remove redundant license textGreg Kroah-Hartman2017-11-071-10/+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. Acked-by: Chunfeng Yun <chunfeng.yun@mediatek.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: mtu3: set otg_sel for u2port only if works as dual-role modeChunfeng Yun2017-10-191-2/+7
| | | | | | | | | | | | When set otg_sel(SSUSB_U2_PORT_OTG_SEL) for u2port which supports dual-role mode, the controller will automatically switch mode between host and device according to IDDIG signal. But if the u2port only supports device mode, and no IDDIG pin is provided, setting otg_sel may cause failure of detection by host. So set it only for dual-role mode. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
* usb: mtu3: add support for usb3.1 IPChunfeng Yun2017-10-191-3/+11
| | | | | | | Support SuperSpeedPlus for usb3.1 device IP Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
* usb: mtu3: support 36-bit DMA addressChunfeng Yun2017-10-191-1/+33
| | | | | | | | | add support for 36-bit DMA address [ Felipe Balbi: fix printk format for dma_addr_t ] Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
* usb: mtu3: fix error return code in ssusb_gadget_init()Chunfeng Yun2017-10-191-2/+2
| | | | | | | | | When failing to get IRQ number, platform_get_irq() may return -EPROBE_DEFER, but we ignore it and always return -ENODEV, so fix it. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
* usb: mtu3: fix U3 port link issueChunfeng Yun2016-12-071-8/+10
| | | | | | | | | the issue is introduced when @is_u3_ip is used in mtu3_device_enabe() before initialized in mtu3_mem_alloc(), so get global IP information at first before used by following functins. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: mtu3: enable auto switch from U3 to U2Chunfeng Yun2016-12-071-0/+2
| | | | | | | | inform mac2 to build U2 link automatically after U3 detect fail without software setting soft_connect. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: mtu3: declare functions staticSudip Mukherjee2016-11-141-1/+1
| | | | | | | | | The only user of the functions mtu3_irq() and gpd_ring_empty() are in the same file. They can be declared as static. Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> Acked-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: mtu3: dual-role mode supportChunfeng Yun2016-10-271-9/+5
| | | | | | | | | support dual-role mode; there are two ways to switch between host and device modes, one is by idpin, another is by debugfs which depends on user input. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: mtu3: host only mode supportChunfeng Yun2016-10-271-6/+36
| | | | | | | | | | supports host only mode and the code is ported from host/xhci-mtk.c IPPC register shared between host and device is moved into common glue layer. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: mtu3: Super-Speed Peripheral mode supportChunfeng Yun2016-10-271-22/+180
| | | | | | | add super-speed funtion for peripheral mode Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: Add MediaTek USB3 DRD driverChunfeng Yun2016-10-271-0/+675
This patch adds support for the MediaTek USB3 controller integrated into MT8173. It currently supports High-Speed Peripheral Only mode. Super-Speed Peripheral, Dual-Role Device and Host Only (xHCI) modes will be added in the next patchs. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-03 23:57:38 +0000