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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> |
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.. | ||
iosm | ||
t7xx | ||
Kconfig | ||
Makefile | ||
mhi_wwan_ctrl.c | ||
mhi_wwan_mbim.c | ||
qcom_bam_dmux.c | ||
rpmsg_wwan_ctrl.c | ||
wwan_core.c | ||
wwan_hwsim.c |