linux-dev/drivers/usb/mtu3, branch master

usb: mtu3: fix failed runtime suspend in host only mode

2022-09-30T11:55:48Z

When the dr_mode is "host", after the host enter runtime suspend, the mtu3 can't do it, because the mtu3's device wakeup function is not enabled, instead it's enabled in gadget init function, to fix the issue, init wakeup early in mtu3's probe() Fixes: 6b587394c65c ("usb: mtu3: support suspend/resume for dual-role mode") Reviewed-by: AngeloGioacchino Del Regno Reported-by: Tianping Fang Signed-off-by: Chunfeng Yun Link: https://lore.kernel.org/r/20220929064459.32522-1-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman

Merge tag 'trace-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2022-08-05T16:41:12Z

Pull tracing updates from Steven Rostedt: - Runtime verification infrastructure This is the biggest change here. It introduces the runtime verification that is necessary for running Linux on safety critical systems. It allows for deterministic automata models to be inserted into the kernel that will attach to tracepoints, where the information on these tracepoints will move the model from state to state. If a state is encountered that does not belong to the model, it will then activate a given reactor, that could just inform the user or even panic the kernel (for which safety critical systems will detect and can recover from). - Two monitor models are also added: Wakeup In Preemptive (WIP - not to be confused with "work in progress"), and Wakeup While Not Running (WWNR). - Added __vstring() helper to the TRACE_EVENT() macro to replace several vsnprintf() usages that were all doing it wrong. - eprobes now can have their event autogenerated when the event name is left off. - The rest is various cleanups and fixes. * tag 'trace-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (50 commits) rv: Unlock on error path in rv_unregister_reactor() tracing: Use alignof__(struct {type b;}) instead of offsetof() tracing/eprobe: Show syntax error logs in error_log file scripts/tracing: Fix typo 'the the' in comment tracepoints: It is CONFIG_TRACEPOINTS not CONFIG_TRACEPOINT tracing: Use free_trace_buffer() in allocate_trace_buffers() tracing: Use a struct alignof to determine trace event field alignment rv/reactor: Add the panic reactor rv/reactor: Add the printk reactor rv/monitor: Add the wwnr monitor rv/monitor: Add the wip monitor rv/monitor: Add the wip monitor skeleton created by dot2k Documentation/rv: Add deterministic automata instrumentation documentation Documentation/rv: Add deterministic automata monitor synthesis documentation tools/rv: Add dot2k Documentation/rv: Add deterministic automaton documentation tools/rv: Add dot2c Documentation/rv: Add a basic documentation rv/include: Add instrumentation helper functions rv/include: Add deterministic automata monitor definition via C macros ...

USB: mtu3: tracing: Use the new __vstring() helper

2022-07-24T23:11:18Z

Instead of open coding a __dynamic_array() with a fixed length (which defeats the purpose of the dynamic array in the first place). Use the new __vstring() helper that will use a va_list and only write enough of the string into the ring buffer that is needed. Link: https://lkml.kernel.org/r/20220719112719.17e796c6@gandalf.local.home Cc: Ingo Molnar Cc: Andrew Morton Cc: linux-usb@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mediatek@lists.infradead.org Acked-by: Greg Kroah-Hartman Tested-by: Chunfeng Yun Signed-off-by: Steven Rostedt (Google)

usb: mtu3: support function remote wakeup

2022-07-08T12:53:30Z

Add function wake notification to support function remote wakeup, currently assume the composite device only enable function wake for the first interface. Forward request to function driver when the recipient is an interface, including: GetStatus() request to the first interface in a function returns the information about 'function remote wakeup' and 'function remote wakeup capalbe'; SetFeature request of FUNCTION_SUSPEND to an interface recipient, the controller driver saves the suspend option; Signed-off-by: Chunfeng Yun Link: https://lore.kernel.org/r/20220708071903.25752-5-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman

usb: mtu3: check capability of usb3 dual role

2022-07-08T12:53:26Z

It is capable of supporting usb3 dual role if there is at least one usb3 port for device and xhci controller, we can check it from the controller's capability, so no need the property "mediatek,usb3-drd" anymore, but I find the property is not decribed in dt-binding. Meanwhile, also take into account if the u3 port is disabled when the u3 phy is shared with pcie. Signed-off-by: Chunfeng Yun Link: https://lore.kernel.org/r/20220708071903.25752-4-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman

usb: mtu3: add feature to disable device's usb3 port

2022-07-08T12:53:23Z

We may want to disable device's usb3 port when the combo phy is switched from usb3 mode to pcie mode for some projects. Meanwhile rename member @is_u3_ip to @u3_capable to avoid misleading, due to the member's value may be changed when disable usb3 port, but the controller is still a usb3 IP which also tells us how to manage the fifo. Signed-off-by: Chunfeng Yun Link: https://lore.kernel.org/r/20220708071903.25752-3-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman

usb: mtu3: print endpoint type as string

2022-07-08T12:53:18Z

Print endpoint type as string instead of decimal value to make the log more readable. Signed-off-by: Chunfeng Yun Link: https://lore.kernel.org/r/20220708071903.25752-2-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman

usb: mtu3: register mtu3_irq by threaded irq

2022-06-10T09:52:52Z

Use threaded irq to improve time consuming top-half Signed-off-by: Chunfeng Yun Link: https://lore.kernel.org/r/20220609074233.15532-3-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman

usb: mtu3: implement udc_async_callbacks of gadget operation

2022-06-10T09:52:52Z

Implement udc_async_callbacks hook function to avoid a race when unnbinding gadget drivers, refer to: 7dc0c55e9f30 ('USB: UDC core: Add udc_async_callbacks gadget op') Signed-off-by: Chunfeng Yun Link: https://lore.kernel.org/r/20220609074233.15532-2-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman

usb: mtu3: sync interrupt before unbind the udc

2022-06-10T09:52:52Z

Register gadget irq to avoid the interrupt handler is occurred or scheduled during the unbind flow, may happen when do android function switch stress test. Signed-off-by: Chunfeng Yun Link: https://lore.kernel.org/r/20220609074233.15532-1-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman