On 8/9/26 21:58, Marek Vasut wrote:
Sending DSI commands from the prepare() callback requires DSI link to be
up at that point. For DSI hosts is guaranteed only if the panel driver
sets the .prepare_prev_first flag. Set it to let these panels work with
the DSI hosts which don't power on the link in their .mode_set callback.
Signed-off-by: Marek Vasut <[email protected]>
---
Cc: Conor Dooley <[email protected]>
Cc: Dave Stevenson <[email protected]>
Cc: David Airlie <[email protected]>
Cc: Jessica Zhang <[email protected]>
Cc: Krzysztof Kozlowski <[email protected]>
Cc: Maarten Lankhorst <[email protected]>
Cc: Maxime Ripard <[email protected]>
Cc: Neil Armstrong <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Simona Vetter <[email protected]>
Cc: Thomas Zimmermann <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
---
drivers/gpu/drm/panel/panel-ilitek-ili9882t.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c
b/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c
index 219d048cb883f..24e72ad0d29a1 100644
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c
@@ -808,6 +808,7 @@ static int ili9882t_add(struct ili9882t *ili)
ili->base.funcs = &ili9882t_funcs;
ili->base.dev = &ili->dsi->dev;
+ ili->base.prepare_prev_first = true;
drm_panel_add(&ili->base);
Reviewed-by: Neil Armstrong <[email protected]>
Thanks,
Neil
