linux/drivers/net/wwan
Jinjian Song d785ed945d net: wwan: t7xx: PCIe reset rescan
WWAN device is programmed to boot in normal mode or fastboot mode,
when triggering a device reset through ACPI call or fastboot switch
command. Maintain state machine synchronization and reprobe logic
after a device reset.

The PCIe device reset triggered by several ways.
E.g.:
 - fastboot: echo "fastboot_switching" > /sys/bus/pci/devices/${bdf}/t7xx_mode.
 - reset: echo "reset" > /sys/bus/pci/devices/${bdf}/t7xx_mode.
 - IRQ: PCIe device request driver to reset itself by an interrupt request.

Use pci_reset_function() as a generic way to reset device, save and
restore the PCIe configuration before and after reset device to ensure
the reprobe process.

Suggestion from Bjorn:
Link: https://lore.kernel.org/all/20230127133034.GA1364550@bhelgaas/

Signed-off-by: Jinjian Song <jinjian.song@fibocom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-08-21 12:57:24 +01:00
..
iosm net: wwan: iosm: Fix tainted pointer delete is case of region creation fail 2024-06-06 10:15:14 +02:00
t7xx net: wwan: t7xx: PCIe reset rescan 2024-08-21 12:57:24 +01:00
Kconfig
Makefile
mhi_wwan_ctrl.c wwan: core: Support slicing in port TX flow of WWAN subsystem 2023-03-17 22:38:31 -07:00
mhi_wwan_mbim.c net: wwan: mhi: make default data link id configurable 2024-07-03 19:11:01 +05:30
qcom_bam_dmux.c net: wwan: qcom_bam_dmux: Convert to platform remove callback returning void 2023-12-05 19:54:44 -08:00
rpmsg_wwan_ctrl.c net: wwan: replace deprecated strncpy with strscpy 2023-10-20 18:15:05 -07:00
wwan_core.c net: wwan: core: make wwan_class constant 2024-03-05 11:21:18 -08:00
wwan_hwsim.c net: wwan: hwsim: make wwan_hwsim_class constant 2024-03-05 11:21:18 -08:00