The UUU tool excepts the interrupt-in endpoint to be ep1in, otherwise
it crashes. This is a result of the previous hard-coded EP setup in
drivers/usb/gadget/epautoconf.c which did special-case EP allocation
for SPL builds, and which was since converted to this callback, but
without the special-case EP allocation in SPL part.

This reinstates the SPL part in an isolated manner, only for NXP iMX
SoCs, only for SPL builds, and only for the ep1in interrupt-in endpoint.

Fixes: 1918b8010c32 ("usb: dwc3: gadget: Convert epautoconf workaround to match_ep callback")
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/20250319220805.219001-1-marex@denx.de
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>

Add STi glue logic to manage the DWC3 HC on STiH407
SoC family. It configures the internal glue logic and
syscfg registers.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Marek Vasut <marex@denx.de>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/20250130163547.512990-6-patrice.chotard@foss.st.com
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>

Reorder include following rules available here :
https://docs.u-boot.org/en/latest/develop/codingstyle.html#include-files

Remove useless include files.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Marek Vasut <marex@denx.de>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Link: https://lore.kernel.org/r/20250130163547.512990-5-patrice.chotard@foss.st.com
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>

STi will migrate to dwc3-generic driver, dwc3-sti-glue driver
can be removed.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Marek Vasut <marex@denx.de>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/20250130163547.512990-4-patrice.chotard@foss.st.com
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>

In case "ums" command is used on platforms which don't implement
g_dnl_board_usb_cable_connected() and USB cable is not connected,
we stay inside sleep_thread() forever and watchdog is triggered.

Add schedule() call to avoid this issue.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/20241202074644.5380-1-patrice.chotard@foss.st.com
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>

The current behaviour of this function will dereference a null pointer
if the serial# environment variable is unset. This was discovered on a
board where U-Boot did not have access to the first 256MB of ram,
resulting in a board crash.
In the event that U-Boot has full access to memory, it will still read
from address 0, which is probably not optimal.
This simple check is enough to fix it

Signed-off-by: Michael Ferolito <michaelsunn101@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Link: https://lore.kernel.org/r/20250128030945.1219589-1-michaelsunn101@gmail.com
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>

The BLK symbol has a few meanings, one of which is that it controls the
driver model portion of a "block device". Rather than having this hidden
symbol be "default y if ..." it should be select'd by the various block
subsystems. Symbols such as PVBLOCK which already select'd BLK are
unchanged".

Reviewed-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Signed-off-by: Tom Rini <trini@konsulko.com>

i.MX95 uses the same USB IP as i.MX8MM. It can then reuse the ehci-mx6
driver.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>

With the commit 4fcba5d556b4 ("regulator: implement basic reference
counter") the return value of regulator_set_enable may be EALREADY or
EBUSY for fixed/gpio regulators.

Change to use the more relaxed regulator_set_enable_if_allowed to
continue if regulator already was enabled or disabled.

Based on 335799b7252a ("usb: dwc2: Use regulator_set_enable_if_allowed")

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>

With the commit 4fcba5d556b4 ("regulator: implement basic reference
counter") the return value of regulator_set_enable may be EALREADY or
EBUSY for fixed/gpio regulators.

Change to use the more relaxed regulator_set_enable_if_allowed to
continue if regulator already was enabled or disabled.

Based on 335799b7252a ("usb: dwc2: Use regulator_set_enable_if_allowed")

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>