[PATCH v2 0/9] Use -ENOSYS consistently

[Simon Glass <sjg@chromium.org>]

A few places use -ENOTSUPP when they should use -ENOSYS. In two cases both
are used. This little series tidies this up and documents the conventions.

Changes in v2:
- Add a patch to document the common error codes
- Add new patch for acpi_get_path()
- Add new patch to update clk drivers to use -EINVAL

Simon Glass (9):
  dm: core: Document the common error codes
  dm: core: Use -ENOSPC in acpi_get_path()
  usb: Return -ENOSYS when system call is not available
  spi: Return -ENOSYS when system call is not available
  tlv_eeprom: Return -ENOSYS when system call is not available
  clk: Update drivers to use -EINVAL
  clk: Return -ENOSYS when system call is not available
  simple-pm-bus: Use -ENOSYS for checking missing system call
  pinctrl: Return -ENOSYS when system call is not available

 doc/driver-model/design.rst            | 111 +++++++++++++++++++++++++
 drivers/clk/aspeed/clk_ast2600.c       |   2 +-
 drivers/clk/clk-composite.c            |   8 +-
 drivers/clk/clk-hsdk-cgu.c             |   4 +-
 drivers/clk/imx/clk-imx8.c             |   4 +-
 drivers/clk/imx/clk-imx8qm.c           |   6 +-
 drivers/clk/imx/clk-imx8qxp.c          |   6 +-
 drivers/clk/imx/clk-pllv3.c            |   2 +-
 drivers/clk/kendryte/bypass.c          |   2 +-
 drivers/clk/kendryte/clk.c             |   2 +-
 drivers/clk/mvebu/armada-37xx-periph.c |   6 +-
 drivers/core/acpi.c                    |   2 +-
 drivers/core/simple-pm-bus.c           |   4 +-
 drivers/pinctrl/pinctrl-uclass.c       |  10 ++-
 drivers/usb/gadget/udc/udc-uclass.c    |   2 +-
 include/spi-mem.h                      |   2 +-
 include/tlv_eeprom.h                   |   6 +-
 17 files changed, 146 insertions(+), 33 deletions(-)

-- 
2.31.0.rc2.261.g7f71774620-goog