This series adjust some configuration values to ensure stability and robustness of mhi pci devices (timeout, number of events, burst mode). It also includes support for system sleep as well as a recovery procedure that can be triggered when a PCI error is reported, either by PCI AER or by the new health-check mechanism. All these changes have been tested with Telit FN980m module v2: - Cancel recovery work on suspend v3: - enable doorbell_mode_switch for burst channel (HW) - Add mhi_initialize_controller helper patch v4: - Delete hard reset on module unload, MHI reset is enough (Jeffrey) - Move soc reset support in MHI core (Jeffrey) - burst mode: enable doorbell_mode_switch for HW channels (Bhaumik) - Add diag channels v5: - Remove useless call to mhi_initialize_controller in alloc_controller (hemant) - Add define for post reset timeout (hemant) - Fix static misses (hemant) v6: - Add debug print in case of recovery success (Mani) - Return error code in case of resume failure (Mani) v7: - Removed mhi_initialize_controller API (Mani) - Added controller specific reset callback (Mani) - Reworked error handling using reset_prepare/done (Mani) v8: - Rebased on v5.11-rc1 Loic Poulain (10): bus: mhi: core: Add device hardware reset support mhi: pci-generic: Increase number of hardware events mhi: pci_generic: Enable burst mode for hardware channels mhi: pci_generic: Add support for reset mhi: pci_generic: Add suspend/resume/recovery procedure mhi: pci_generic: Add PCI error handlers mhi: pci_generic: Add health-check mhi: pci_generic: Increase controller timeout value mhi: pci_generic: Add diag channels mhi: pci_generic: Set irq moderation value to 1ms for hw channels drivers/bus/mhi/core/main.c | 13 ++ drivers/bus/mhi/pci_generic.c | 359 +++++++++++++++++++++++++++++++++++++++--- include/linux/mhi.h | 9 ++ 3 files changed, 361 insertions(+), 20 deletions(-) -- 2.7.4
