Use GUSBCFG_FORCEHOSTMODE to detected the HOST forced mode as it is done
in the Linux driver drivers/usb/dwc2/core.c:dwc2_core_reset().
The host polling must be executed only if the current mode is host,
either due to the force HOST mode (which persists after core reset)
or the connector id pin.
The GUSBCFG_FORCEDEVMODE bits is used to force the device mode (for
example used on STM32MP1x platform) and when it is activated the DWC2 reset
failed with the trace:
"dwc2_core_reset: Waiting for GINTSTS_CURMODE_HOST timeout"
Fixes: c5d685b8993c ("usb: dwc2: Unify flush and reset logic with v4.20a support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Junhui Liu <junhui.liu@pigmoral.tech>
Tested-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Marek Vasut <marek.vasut@mailbox.org>
This patch merges flush and reset logic for both host and gadget code
into a common set of functions, reducing duplication. It also adds support
for the updated reset logic to compatible with core version since v4.20a.
This patch mainly refers to the patch in the kernel.
link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=65dc2e725286106f99c6f6b78e3d9c52c15f3a9c
Signed-off-by: Kongyang Liu <seashell11234455@gmail.com>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Junhui Liu <junhui.liu@pigmoral.tech>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Link: https://lore.kernel.org/r/20250110-dwc2-dev-v4-7-987f4fd6f8b2@pigmoral.tech
Signed-off-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
