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Some panels support multiple slice to be sent in a single DSC packet and this feature is a must for specific panels, such as the JDI LPM026M648C. Use the MIPI_DSI_MODE_DSC_ALL_SLICES_IN_PKT flag to derive slice_per_pkt from slice_count, note that most panels are expected to just work with just one slice per packet. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Signed-off-by: Alexander Koskovich <akoskovich@pm.me> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Tested-by: Junjie Cao <junjie.cao@linux.dev> Acked-by: Maxime Ripard <mripard@kernel.org> # from v1 Link: https://patch.msgid.link/20260318-dsi-dsc-slice-per-pkt-v2-2-0a1b316f8250@pm.me Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>