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usb: typec: ucsi: split read operation

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The read operation is only used to read fixed data at fixed offsets
(UCSI_VERSION, UCSI_CCI, UCSI_MESSAGE_IN). In some cases drivers apply
offset-specific overrides. Split the read() operation into three
operations, read_version(), read_cci(), read_message_in().

Tested-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240627-ucsi-rework-interface-v4-3-289ddc6874c7@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dmitry Baryshkov 2024-06-27 17:44:42 +03:00 • committed by Greg Kroah-Hartman
commit 467399d989
7 changed files with 169 additions and 72 deletions
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