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| author | Tomeu Vizoso <tomeu.vizoso@collabora.com> | 2016-07-15 16:28:41 -0700 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2016-07-25 10:32:23 +0200 |
| commit | 9798ac6d32c1a32d6d92d853ff507d2d39c4300c (patch) | |
| tree | 5616b9a6aad39550b0dd658260d2dc63cbca1dc7 /drivers/platform | |
| parent | 1a695a905c18548062509178b98bc91e67510864 (diff) | |
| download | linux-9798ac6d32c1a32d6d92d853ff507d2d39c4300c.tar.gz | |
mfd: cros_ec: Add cros_ec_cmd_xfer_status() helper
So that callers of cros_ec_cmd_xfer() don't have to repeat boilerplate code when checking for errors from the EC side. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Reviewed-by: Benson Leung <bleung@chromium.org> Signed-off-by: Brian Norris <briannorris@chromium.org> Acked-by: Lee Jones <lee.jones@linaro.org> Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/chrome/cros_ec_proto.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/platform/chrome/cros_ec_proto.c b/drivers/platform/chrome/cros_ec_proto.c index b6e161f71b26..6c084b266651 100644 --- a/drivers/platform/chrome/cros_ec_proto.c +++ b/drivers/platform/chrome/cros_ec_proto.c @@ -380,3 +380,20 @@ int cros_ec_cmd_xfer(struct cros_ec_device *ec_dev, return ret; } EXPORT_SYMBOL(cros_ec_cmd_xfer); + +int cros_ec_cmd_xfer_status(struct cros_ec_device *ec_dev, + struct cros_ec_command *msg) +{ + int ret; + + ret = cros_ec_cmd_xfer(ec_dev, msg); + if (ret < 0) { + dev_err(ec_dev->dev, "Command xfer error (err:%d)\n", ret); + } else if (msg->result != EC_RES_SUCCESS) { + dev_dbg(ec_dev->dev, "Command result (err: %d)\n", msg->result); + return -EPROTO; + } + + return ret; +} +EXPORT_SYMBOL(cros_ec_cmd_xfer_status); |