drm/bridge/synopsys: dsi: Add a warning msg on dsi read requests
The dcs/generic dsi read feature is not yet implemented so it is important to warn the host_transfer() caller in case of read operation requests. Reviewed-by: NBrian Norris <briannorris@chromium.org> Signed-off-by: NPhilippe Cornu <philippe.cornu@st.com> Signed-off-by: NArchit Taneja <architt@codeaurora.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180125103800.1999-2-philippe.cornu@st.com
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