kernel/linux.git/drivers/usb/chipidea, branch v4.19.39

usb: chipidea: Grab the (legacy) USB PHY by phandle first

2019-04-05T20:33:01+00:00

[ Upstream commit 68ef236274793066b9ba3154b16c0acc1c891e5c ] According to the chipidea driver bindings, the USB PHY is specified via the "phys" phandle node. However, this only takes effect for USB PHYs that use the common PHY framework. For legacy USB PHYs, a simple lookup based on the USB PHY type is done instead. This does not play out well when more than one USB PHY is registered, since the first registered PHY matching the type will always be returned regardless of what the driver was bound to. Fix this by looking up the PHY based on the "phys" phandle node. Although generic PHYs are rather matched by their "phys-name" and not the "phys" phandle directly, there is no helper for similar lookup on legacy PHYs and it's probably not worth the effort to add it. When no legacy USB PHY is found by phandle, fallback to grabbing any registered USB2 PHY. This ensures backward compatibility if some users were actually relying on this mechanism. Signed-off-by: Paul Kocialkowski Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

usb: chipidea: tegra: Fix missed ci_hdrc_remove_device()

2019-03-23T19:10:04+00:00

commit 563b9372f7ec57e44e8f9a8600c5107d7ffdd166 upstream. The ChipIdea's platform device need to be unregistered on Tegra's driver module removal. Fixes: dfebb5f43a78827a ("usb: chipidea: Add support for Tegra20/30/114/124") Signed-off-by: Dmitry Osipenko Acked-by: Peter Chen Cc: stable Signed-off-by: Greg Kroah-Hartman

usb: chipidea: Prevent unbalanced IRQ disable

2018-11-13T19:08:36+00:00

[ Upstream commit 8b97d73c4d72a2abf58f8e49062a7ee1e5f1334e ] The ChipIdea IRQ is disabled before scheduling the otg work and re-enabled on otg work completion. However if the job is already scheduled we have to undo the effect of disable_irq int order to balance the IRQ disable-depth value. Fixes: be6b0c1bd0be ("usb: chipidea: using one inline function to cover queue work operations") Signed-off-by: Loic Poulain Signed-off-by: Peter Chen Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

Merge 4.18-rc7 into usb-next

2018-07-30T08:04:58+00:00

We want the USB fixes in here as well to handle merge issues. Signed-off-by: Greg Kroah-Hartman

Merge tag 'usb-ci-v4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next

2018-07-28T12:55:31+00:00

Peter writes: One patch to enable USB Ethernet gadget at Tegra platforms

usb: chipidea: Always build ULPI code

2018-07-05T06:22:47+00:00

Commit 03e6275ae381 ("usb: chipidea: Fix ULPI on imx51") causes a kernel hang on imx51 systems that use the ULPI interface and do not select the CONFIG_USB_CHIPIDEA_ULPI option. In order to avoid such potential misuse, let's always build the chipidea ULPI code into the final ci_hdrc object. Tested on a imx51-babbage board. Fixes: 03e6275ae381 ("usb: chipidea: Fix ULPI on imx51") Signed-off-by: Fabio Estevam Signed-off-by: Peter Chen

usb: chipidea: tegra: Use aligned DMA on Tegra114/124

2018-06-26T02:15:31+00:00

USB Ethernet gadget now works on Tegra114 and Tegra124. Similar to commit 061e20e9899e ("usb: chipidea: tegra: Use aligned DMA on Tegra30"). Signed-off-by: Marcel Ziswiler Signed-off-by: Peter Chen

usb: chipidea: host: fix disconnection detect issue

2018-06-26T01:59:34+00:00

The commit 4e88d4c08301 ("usb: add a flag to skip PHY initialization to struct usb_hcd") delete the assignment for hcd->usb_phy, it causes usb_phy_notify_connect{disconnect) are not called, the USB PHY driver is not notified of hot plug event, then the disconnection will not be detected by hardware. Fixes: 4e88d4c08301 ("usb: add a flag to skip PHY initialization to struct usb_hcd") Acked-by: Martin Blumenstingl Reported-by: Mats Karrman Tested-by: Mats Karrman Signed-off-by: Peter Chen

USB: chipidea: no need to check return value of debugfs_create functions

2018-05-31T10:54:22+00:00

When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Acked-by: Peter Chen Signed-off-by: Greg Kroah-Hartman

usb: chipidea: Fix ULPI on imx51

2018-05-31T10:44:39+00:00

Workaround introduced for i.MX53 in be9cae2479f48 ("usb: chipidea: imx: Fix ULPI on imx53") seems to be applicable in case of i.MX51 as well. Running latest kernel on ZII RDU1 Board (imx51-zii-rdu1.dts) exhibits a kernel frozen on PORTSC access and applying the workaround resolves the issue. Fixes: be9cae2479f4 ("usb: chipidea: imx: Fix ULPI on imx53") Cc: Peter Chen Cc: Lucas Stach Cc: Chris Healy Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: linux-usb@vger.kernel.org Reviewed-by: Fabio Estevam Signed-off-by: Andrey Smirnov Tested-By: Nikita Yushchenko Signed-off-by: Greg Kroah-Hartman