drm/tidss: add has_writeback flag
Only specific version of DSS7 support writeback. We need to be able to
identify which at run time.
Signed-off-by:
Benoit Parrot <bparrot@ti.com>
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Only specific version of DSS7 support writeback. We need to be able to
identify which at run time.
Signed-off-by:
Benoit Parrot <bparrot@ti.com>