This patch series adds polling mode feature that have been missing in
upstream FastRPC driver.

- Add changes to move fdlist to ctx structure to avoid code duplicacy.
- Update context mask to support polling mode.
- Add changes to support polling feature.

Userspace change: https://github.com/qualcomm/fastrpc/pull/258
Patch [v11]: https://lore.kernel.org/all/20260520065047.3415790-1-ekansh.gupta@oss.qualcomm.com/

Changes in v12:
  - Fixed poll_mode_supported check.

Changes in v11:
  - Moved back to read_poll*.
  - Improved error handling.

Changes in v10:
  - Add milos and sar2130p to fastrpc_poll_supported_machines. 
  - Updated comment for supported platform list.

Changes in v9:
  - Added platform support check.
  - Moved to readl as per Luben's suggestion.
  - Cleaned up fastrpc_wait_for_completion().

Changes in v8:
  - Added more comments.

Changes in v7:
  - Fixed warnings.
  - Fixed commit text.
  - Addressed clean-up comments.

Changes in v6:
  - Fixed poll memory calculation.
  - Added few formatting changes.

Changes in v5:
  - Add more details in commit text.

Changes in v4:
  - Replace hardcoded ctxid mask with GENMASK.
  - Fixed commit text.

Changes in v3:
  - Resolve compilation warning.

Changes in v2:
  - Added comments and fixed commit text.
  - Defined context id position as a macro.
  - Added new IOCTL to control polling mode as always enabling
    it might cause excess power consumption.
  - Cleaned up polling mode implementation.

Ekansh Gupta (4):
  misc: fastrpc: Move fdlist to invoke context structure
  misc: fastrpc: Replace hardcoded ctxid mask with GENMASK
  misc: fastrpc: Expand context ID mask for DSP polling mode support
  misc: fastrpc: Add polling mode support for fastRPC driver

 drivers/misc/fastrpc.c      | 189 ++++++++++++++++++++++++++++++++----
 include/uapi/misc/fastrpc.h |  29 ++++++
 2 files changed, 198 insertions(+), 20 deletions(-)

-- 
2.34.1