[v2,0/3] Add Intel Input Output Manager driver

Message

Mani, Rajmohan Aug. 22, 2020, 4:05 a.m. UTC

Hi,

This patch series add support for Intel Input Output Manager (IOM)
driver, which is leveraged by the Intel PMC USB mux control driver.

changes from v1:
- Included device role (UFP) support patch from Heikki to this series.
- Addressed Greg's comments on v1 with below changes
- Used per-instance variable for struct intel_iom
- Removed struct device *dev inside probe function
- Removed dev_set_drvdata() inside probe function
- Added NULL pointer check on struct intel_iom * as well as members
  dev and regbar, inside intel_iom_port_status(), to protect against
  calls to this API before driver gets probed.
- Limit support to only one IOM device
- Removed intel_iom_get()/intel_iom_put() calls, as the dependency through
  Kconfig is enough to prevent the IOM driver from unloading, when used
  by callers.

Heikki Krogerus (2):
  usb: typec: intel_pmc_mux: Check the port status before connect
  usb: typec: intel_pmc_mux: Support for device role (UFP)

Rajmohan Mani (1):
  platform/x86: Add Intel Input Output Manager (IOM) driver

 drivers/platform/x86/Kconfig                |  16 +++
 drivers/platform/x86/Makefile               |   1 +
 drivers/platform/x86/intel_iom.c            |  95 +++++++++++++++
 drivers/usb/typec/mux/Kconfig               |   1 +
 drivers/usb/typec/mux/intel_pmc_mux.c       | 124 ++++++++++++++------
 include/linux/platform_data/x86/intel_iom.h |  49 ++++++++
 6 files changed, 251 insertions(+), 35 deletions(-)
 create mode 100644 drivers/platform/x86/intel_iom.c
 create mode 100644 include/linux/platform_data/x86/intel_iom.h