platform/chrome: cros_ec_chardev: Move data to chardev_pdata

Move `ec_dev` and `cmd_offset` from `chardev_priv` to `chardev_pdata` as
they are per-device properties but not per-open-file properties.

Hold a reference to `chardev_pdata` for each open file to ensure the
data remains valid even if the underlying platform device is removed.

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20260525052654.4076429-3-tzungbi@kernel.org
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>

0 files changed, 0 insertions, 0 deletions