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[ Upstream commitdb6568498b] MIPI-DSI devices need to call mipi_dsi_attach() when their probe is done to attach against their host. However, at removal or when an error occurs, that attachment needs to be undone through a call to mipi_dsi_detach(). Let's create a device-managed variant of the attachment function that will automatically detach the device at unbind. Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20210910101218.1632297-5-maxime@cerno.tech Stable-dep-of:941882a0e9("drm/bridge: lt8912b: Fix bridge_detach") Signed-off-by: Sasha Levin <sashal@kernel.org>