Messages in this thread Patch in this message | | | From | Jonathan Marek <> | Subject | [PATCH 2/4] drm/msm/dsi: add a comment to explain pkt_per_line encoding | Date | Tue, 14 Nov 2023 12:42:14 -0500 |
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Make it clear why the pkt_per_line value is being "divided by 2".
Signed-off-by: Jonathan Marek <jonathan@marek.ca> --- drivers/gpu/drm/msm/dsi/dsi_host.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index bddc57726fb9..2ea2fc105fbf 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -875,6 +875,8 @@ static void dsi_update_dsc_timing(struct msm_dsi_host *msm_host, bool is_cmd_mod /* DSI_VIDEO_COMPRESSION_MODE & DSI_COMMAND_COMPRESSION_MODE * registers have similar offsets, so for below common code use * DSI_VIDEO_COMPRESSION_MODE_XXXX for setting bits + * + * pkt_per_line is log2 encoded, >>1 works for supported values (1,2,4) */ reg |= DSI_VIDEO_COMPRESSION_MODE_CTRL_PKT_PER_LINE(pkt_per_line >> 1); reg |= DSI_VIDEO_COMPRESSION_MODE_CTRL_EOL_BYTE_NUM(eol_byte_num); -- 2.26.1
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