Messages in this thread | | | From | Guenter Roeck <> | Subject | [PATCH v2 0/4] platform/chrome: cros_ec_proto: Convert EC error codes to Linux error codes | Date | Mon, 20 Jul 2020 13:22:39 -0700 |
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The EC reports a variety of error codes. Most of those, with the exception of EC_RES_INVALID_VERSION, are converted to -EPROTO. As result, the actual error code gets lost. In cros_ec_cmd_xfer_status(), convert all EC errors to Linux error codes to report a more meaningful error to the caller to aid debugging.
To prepare for this change, handle error codes other than -EPROTO for all callers of cros_ec_cmd_xfer_status(). Specifically, no longer assume that -EPROTO reflects an error from the EC and all other error codes reflect a transfer error.
v2: Add patches 1/4 to 3/4 to handle callers of cros_ec_cmd_xfer_status()
---------------------------------------------------------------- Guenter Roeck (4): iio: cros_ec: Accept -EOPNOTSUPP as 'not supported' error code cros_ec_lightbar: Accept more error codes from cros_ec_cmd_xfer_status platform/chrome: cros_ec_sysfs: Report range of error codes from EC platform/chrome: cros_ec_proto: Convert EC error codes to Linux error codes
.../iio/common/cros_ec_sensors/cros_ec_sensors.c | 2 +- drivers/platform/chrome/cros_ec_lightbar.c | 10 +++--- drivers/platform/chrome/cros_ec_proto.c | 37 +++++++++++++++++----- drivers/platform/chrome/cros_ec_sysfs.c | 24 ++++++-------- 4 files changed, 43 insertions(+), 30 deletions(-)
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