Hi Greg, Here is the first round of MHI patches for v5.15. Most of the patches missed v5.14 due to late submission, so sending them early now. Summary: 1. Added a dedicated flag to the MHI client transfer APIs for inbound buffer allocation by the MHI stack. This is required for some downlink channels like QRTR that depends on pre-allocated buffers. Since the patch modifies the MHI client drivers under "net/", Ack has been collected from the netdev maintainer. 2. Added support for Cinterion MV31-W modem in pci_generic controller: https://www.thalesgroup.com/en/markets/digital-identity-and-security/iot/iot-connectivity/products/iot-products/mv31-w-ultra-high 3. Rearranged the setting of BHI/BHIe offsets for better validation of the register values read from MMIO. 4. Cleanup of the BHI/BHIe pointers by setting them to NULL to prevent access after power down. 5. Added support for getting the MMIO register length from the controller drivers. This helps in validation of the read offsets from MMIO registers in the MHI stack. 6. Added the MMIO register length support in the controller drivers and collected Acks from the maintainers. 7. With the help of above register length, added check for BHI/BHIe offsets in the MHI core. 8. Used the DMA allocation APIs directly instead of using MHI specific APIs, mhi_alloc_coherent() and mhi_free_coherent(). They were not doing anything special other than calling the DMA allocation APIs. 9. Finally, a patch to improve the debug messages for the power up operation by showing the current EE states. Please consider merging! Thanks, Mani Bhaumik Bhatt (8): bus: mhi: core: Set BHI/BHIe offsets on power up preparation bus: mhi: core: Set BHI and BHIe pointers to NULL in clean-up bus: mhi: Add MMIO region length to controller structure ath11k: set register access length for MHI driver bus: mhi: pci_generic: Set register access length for MHI driver bus: mhi: core: Add range checks for BHI and BHIe bus: mhi: core: Replace DMA allocation wrappers with original APIs bus: mhi: core: Improve debug messages for power up Loic Poulain (1): bus: mhi: Add inbound buffers allocation flag ULRICH Thomas (1): bus: mhi: pci_generic: Add Cinterion MV31-W PCIe to MHI drivers/bus/mhi/core/boot.c | 17 ++--- drivers/bus/mhi/core/init.c | 93 +++++++++++++++++---------- drivers/bus/mhi/core/internal.h | 22 +------ drivers/bus/mhi/core/main.c | 15 +++-- drivers/bus/mhi/core/pm.c | 34 +++------- drivers/bus/mhi/pci_generic.c | 38 +++++++++++ drivers/net/mhi/net.c | 2 +- drivers/net/wireless/ath/ath11k/mhi.c | 1 + drivers/net/wwan/mhi_wwan_ctrl.c | 2 +- include/linux/mhi.h | 9 ++- net/qrtr/mhi.c | 2 +- 11 files changed, 136 insertions(+), 99 deletions(-) -- 2.25.1
