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authorAndrew Bresticker <abrestic@chromium.org>2014-09-18 17:18:58 +0200
committerLee Jones <lee.jones@linaro.org>2014-10-06 21:30:16 +0100
commitd86c21fd31114e3ef9fae64be335c76aa22859dc (patch)
tree5f376a7091afbdb813e2ad25407a7b0026d08118 /drivers/mfd/sm501.c
parent97720706084dd8c45eecc61d39353c7b62939b8f (diff)
mfd: cros_ec: wait for completion of commands that return IN_PROGRESS
When an EC command returns EC_RES_IN_PROGRESS, we need to query the state of the EC until it indicates that it is no longer busy. Do this in cros_ec_cmd_xfer() under the EC's mutex so that other commands (e.g. keyboard, I2C passtru) aren't issued to the EC while it is working on the in-progress command. The 10 milliseconds delay and the number of retries are the values that were used by the flashrom tool when retrying commands. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/sm501.c')
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