[PATCH v5 05/11] drm: bridge: icn6211: Use DSI burst mode without EoT and with LP command mode

[Marek Vasut]

The DSI burst mode is more energy efficient than the DSI sync pulse mode,
make use of the burst mode since the chip supports it as well. Disable the
generation of EoT packet, the chip ignores it, so no point in emitting it.
Enable transmission of data in LP mode, otherwise register read via DSI
does not work with this chip.

Acked-by: Maxime Ripard <maxime at cerno.tech>
Signed-off-by: Marek Vasut <marex at denx.de>
Cc: Jagan Teki <jagan at amarulasolutions.com>
Cc: Maxime Ripard <maxime at cerno.tech>
Cc: Robert Foss <robert.foss at linaro.org>
Cc: Sam Ravnborg <sam at ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann at suse.de>
To: dri-devel at lists.freedesktop.org
---
V2: Rebase on next-20220214
V3: Add AB from Maxime
V4: No change
V5: No change
---
 drivers/gpu/drm/bridge/chipone-icn6211.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/chipone-icn6211.c b/drivers/gpu/drm/bridge/chipone-icn6211.c
index d4a52176814ce..e3a7b945a0ef5 100644
--- a/drivers/gpu/drm/bridge/chipone-icn6211.c
+++ b/drivers/gpu/drm/bridge/chipone-icn6211.c
@@ -464,7 +464,8 @@ static int chipone_probe(struct mipi_dsi_device *dsi)
 
 	dsi->lanes = 4;
 	dsi->format = MIPI_DSI_FMT_RGB888;
-	dsi->mode_flags = MIPI_DSI_MODE_VIDEO_SYNC_PULSE;
+	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
+			  MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET;
 
 	ret = mipi_dsi_attach(dsi);
 	if (ret < 0) {
-- 
2.35.1