drm/imx: fix opencoded use of drm_panel_*

Use the drm_panel_get_modes() function to get the modes.

This patch leave one test for the function pointer:
    panel->funcs->get_modes

This is used to check if the panel may have any modes.
There is no direct replacement.
We may be able to just check that drm_panel_get_modes() return > 0,
but as this is not the same functionality it is left for later.

Signed-off-by: Sam Ravnborg <[email protected]>
Acked-by: Philipp Zabel <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
Cc: Shawn Guo <[email protected]>
Cc: Sascha Hauer <[email protected]>
Cc: Pengutronix Kernel Team <[email protected]>
Cc: Fabio Estevam <[email protected]>
Cc: NXP Linux Team <[email protected]>
Cc: [email protected]
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

1 files changed, 4 insertions, 7 deletions

diff --git a/drivers/gpu/drm/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c
index 2e51b2fade75..e7ce17503ae1 100644
--- a/drivers/gpu/drm/imx/parallel-display.c
+++ b/drivers/gpu/drm/imx/parallel-display.c
@@ -47,14 +47,11 @@ static int imx_pd_connector_get_modes(struct drm_connector *connector)
 {
 	struct imx_parallel_display *imxpd = con_to_imxpd(connector);
 	struct device_node *np = imxpd->dev->of_node;
-	int num_modes = 0;
+	int num_modes;
 
-	if (imxpd->panel && imxpd->panel->funcs &&
-	    imxpd->panel->funcs->get_modes) {
-		num_modes = imxpd->panel->funcs->get_modes(imxpd->panel);
-		if (num_modes > 0)
-			return num_modes;
-	}
+	num_modes = drm_panel_get_modes(imxpd->panel);
+	if (num_modes > 0)
+		return num_modes;
 
 	if (imxpd->edid) {
 		drm_connector_update_edid_property(connector, imxpd->edid);