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mfd: cros_ec: Check result code from EC messages

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Just because the host was able to talk to the EC doesn't mean that the EC
was happy with what it was told. Errors in communincation are not the same
as error messages from the EC itself.

This change lets the EC report its errors separately.

[dianders: Added common function to cros_ec.c]

Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Bill Richardson
2014-06-18 11:14:05 -07:00
committed by Lee Jones
parent 5799f95a37
commit 6db07b6336
4 changed files with 39 additions and 18 deletions
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12
include/linux/mfd/cros_ec.h
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@@ -142,6 +142,18 @@ int cros_ec_resume(struct cros_ec_device *ec_dev);
int cros_ec_prepare_tx(struct cros_ec_device *ec_dev,
struct cros_ec_command *msg);
/**
* cros_ec_check_result - Check ec_msg->result
*
* This is used by ChromeOS EC drivers to check the ec_msg->result for
* errors and to warn about them.
*
* @ec_dev: EC device
* @msg: Message to check
*/
int cros_ec_check_result(struct cros_ec_device *ec_dev,
struct cros_ec_command *msg);
/**
* cros_ec_remove - Remove a ChromeOS EC
*