kernel.git/drivers/usb/musb, branch linux-5.7.y

usb: musb: mediatek: add reset FADDR to zero in reset interrupt handle

2020-06-22T07:33:02Z

commit 402bcac4b25b520c89ba60db85eb6316f36e797f upstream. When receiving reset interrupt, FADDR need to be reset to zero in peripheral mode. Otherwise ep0 cannot do enumeration when re-plugging USB cable. Signed-off-by: Macpaul Lin Acked-by: Min Guo Signed-off-by: Bin Liu Link: https://lore.kernel.org/r/20200525025049.3400-5-b-liu@ti.com Signed-off-by: Greg Kroah-Hartman

usb: musb: jz4740: Prevent lockup when CONFIG_SMP is set

2020-06-10T18:21:43Z

commit 685f5f24108a5f3481da70ee75a1b18b9de34257 upstream. The function dma_controller_irq() locks up the exact same spinlock we locked before calling it, which obviously resulted in a deadlock when CONFIG_SMP was enabled. This flew under the radar as none of the boards supported by this driver needs SMP. Fixes: 57aadb46bd63 ("usb: musb: jz4740: Add support for DMA") Cc: stable@vger.kernel.org Signed-off-by: Paul Cercueil Signed-off-by: Bin Liu Link: https://lore.kernel.org/r/20200525025049.3400-6-b-liu@ti.com Signed-off-by: Greg Kroah-Hartman

usb: musb: Fix runtime PM imbalance on error

2020-06-10T18:21:43Z

commit e4befc121df03dc8ed2ac1031c98f9538e244bae upstream. When copy_from_user() returns an error code, there is a runtime PM usage counter imbalance. Fix this by moving copy_from_user() to the beginning of this function. Fixes: 7b6c1b4c0e1e ("usb: musb: fix runtime PM in debugfs") Signed-off-by: Dinghao Liu Cc: stable@vger.kernel.org Signed-off-by: Bin Liu Link: https://lore.kernel.org/r/20200525025049.3400-7-b-liu@ti.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Greg Kroah-Hartman

usb: musb: start session in resume for host port

2020-06-10T18:21:43Z

commit 7f88a5ac393f39319f69b8b20cc8d5759878d1a1 upstream. Commit 17539f2f4f0b ("usb: musb: fix enumeration after resume") replaced musb_start() in musb_resume() to not override softconnect bit, but it doesn't restart the session for host port which was done in musb_start(). The session could be disabled in musb_suspend(), which leads the host port doesn't stay in host mode. So let's start the session specifically for host port in musb_resume(). Fixes: 17539f2f4f0b ("usb: musb: fix enumeration after resume") Cc: stable@vger.kernel.org Signed-off-by: Bin Liu Link: https://lore.kernel.org/r/20200525025049.3400-3-b-liu@ti.com Signed-off-by: Greg Kroah-Hartman

usb: musb: tusb6010: fix a possible missing data type replacement

2020-03-17T19:03:28Z

Replace "unsigned" to "u32" for checkpatch fix to tusb_writeb(). Signed-off-by: Macpaul Lin Signed-off-by: Bin Liu Link: https://lore.kernel.org/r/20200316211136.2274-9-b-liu@ti.com Signed-off-by: Greg Kroah-Hartman

usb: musb: fix crash with highmen PIO and usbmon

2020-03-17T19:03:28Z

When handling a PIO bulk transfer with highmem buffer, a temporary mapping is assigned to urb->transfer_buffer. After the transfer is complete, an invalid address is left behind in this pointer. This is not ordinarily a problem since nothing touches that buffer before the urb is released. However, when usbmon is active, usbmon_urb_complete() calls (indirectly) mon_bin_get_data() which does access the transfer buffer if it is set. To prevent an invalid memory access here, reset urb->transfer_buffer to NULL when finished (musb_host_rx()), or do not set it at all (musb_host_tx()). Fixes: 8e8a55165469 ("usb: musb: host: Handle highmem in PIO mode") Signed-off-by: Mans Rullgard Cc: stable@vger.kernel.org Signed-off-by: Bin Liu Link: https://lore.kernel.org/r/20200316211136.2274-8-b-liu@ti.com Signed-off-by: Greg Kroah-Hartman

usb: musb: jz4740: Add support for the JZ4770

2020-03-17T19:03:28Z

Add support for probing the jz4740-musb driver on the JZ4770 SoC. The USB IP in the JZ4770 works the same Inventra IP as for the JZ4740, but it features more endpoints, and officially supports OTG. Signed-off-by: Paul Cercueil Signed-off-by: Bin Liu Link: https://lore.kernel.org/r/20200316211136.2274-7-b-liu@ti.com Signed-off-by: Greg Kroah-Hartman

usb: musb: jz4740: Unconditionally depend on devicetree

2020-03-17T19:03:27Z

The jz4740-musb driver is unconditionally probed from devicetree, so we can add a hard dependency on devicetree. This makes the code a bit cleaner, and is more future-proof as the platform data is now retrieved using of_device_get_match_data(). Signed-off-by: Paul Cercueil Signed-off-by: Bin Liu Link: https://lore.kernel.org/r/20200316211136.2274-6-b-liu@ti.com Signed-off-by: Greg Kroah-Hartman

usb: musb: jz4740: Register USB role switch

2020-03-17T19:03:27Z

Register a USB role switch, in order to get notified by the connector driver when the USB role changes. The notification is then transmitted to the PHY. Signed-off-by: Paul Cercueil Signed-off-by: Bin Liu Link: https://lore.kernel.org/r/20200316211136.2274-5-b-liu@ti.com Signed-off-by: Greg Kroah-Hartman

usb: musb: jz4740: Add support for DMA

2020-03-17T19:03:27Z

Add support for using the DMA channels built into the Inventra IP. Signed-off-by: Paul Cercueil Tested-by: Artur Rojek Signed-off-by: Bin Liu Link: https://lore.kernel.org/r/20200316211136.2274-4-b-liu@ti.com Signed-off-by: Greg Kroah-Hartman