[PATCH] drm/panel: mantix: Drop the shutdown callback

From: Sebastian Krzyszkowiak

Date: Mon Feb 16 2026 - 12:53:59 EST


It's the responsibility of the DRM modeset driver to unprepare
and disable the panel. Doing so here leads to regulator underflows.

Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@xxxxxxx>
---
drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c | 11 -----------
1 file changed, 11 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c b/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
index 13352cb4ad77..02e203e9f41a 100644
--- a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
+++ b/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
@@ -295,20 +295,10 @@ static int mantix_probe(struct mipi_dsi_device *dsi)
return 0;
}

-static void mantix_shutdown(struct mipi_dsi_device *dsi)
-{
- struct mantix *ctx = mipi_dsi_get_drvdata(dsi);
-
- drm_panel_unprepare(&ctx->panel);
- drm_panel_disable(&ctx->panel);
-}
-
static void mantix_remove(struct mipi_dsi_device *dsi)
{
struct mantix *ctx = mipi_dsi_get_drvdata(dsi);

- mantix_shutdown(dsi);
-
mipi_dsi_detach(dsi);
drm_panel_remove(&ctx->panel);
}
@@ -323,7 +313,6 @@ MODULE_DEVICE_TABLE(of, mantix_of_match);
static struct mipi_dsi_driver mantix_driver = {
.probe = mantix_probe,
.remove = mantix_remove,
- .shutdown = mantix_shutdown,
.driver = {
.name = DRV_NAME,
.of_match_table = mantix_of_match,

---
base-commit: 0f2acd3148e0ef42bdacbd477f90e8533f96b2ac
change-id: 20260216-mantix-shutdown-bf8d0a6457c7

Best regards,
--
Sebastian Krzyszkowiak <sebastian.krzyszkowiak@xxxxxxx>