diff options
| author | Marek Vasut <marex@denx.de> | 2024-11-24 23:48:07 +0100 |
|---|---|---|
| committer | Neil Armstrong <neil.armstrong@linaro.org> | 2024-12-13 10:51:56 +0100 |
| commit | 406dd4c7984a457567ca652455d5efad81983f02 (patch) | |
| tree | 833162c46662cad30b84afdacadf3ff2232329b2 /drivers/gpu/drm/panel/panel-sitronix-st7701.c | |
| parent | f8fd0968eff52cf092c0d517d17507ea2f6e5ea5 (diff) | |
drm/panel: st7701: Add prepare_prev_first flag to drm_panel
The DSI host must be enabled for the panel to be initialized in
prepare(). Set the prepare_prev_first flag to guarantee this.
This fixes the panel operation on NXP i.MX8MP SoC / Samsung DSIM
DSI host.
Fixes: 849b2e3ff969 ("drm/panel: Add Sitronix ST7701 panel driver")
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Link: https://lore.kernel.org/r/20241124224812.150263-1-marex@denx.de
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241124224812.150263-1-marex@denx.de
Diffstat (limited to 'drivers/gpu/drm/panel/panel-sitronix-st7701.c')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-sitronix-st7701.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7701.c b/drivers/gpu/drm/panel/panel-sitronix-st7701.c index eef03d04e0cd..1f72ef7ca74c 100644 --- a/drivers/gpu/drm/panel/panel-sitronix-st7701.c +++ b/drivers/gpu/drm/panel/panel-sitronix-st7701.c @@ -1177,6 +1177,7 @@ static int st7701_probe(struct device *dev, int connector_type) return dev_err_probe(dev, ret, "Failed to get orientation\n"); drm_panel_init(&st7701->panel, dev, &st7701_funcs, connector_type); + st7701->panel.prepare_prev_first = true; /** * Once sleep out has been issued, ST7701 IC required to wait 120ms |