drm/panel: Read panel orientation for BOE TV101WUM-NL6

This reads the DT setting for the panel rotation to set the panel
orientation in the get_modes callback.

Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Derek Basehore <dbasehore@chromium.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200813215609.28643-3-digetx@gmail.com

diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
index c9729fd..db9d0b8 100644 (file)
--- a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
+++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
@@ -11,6 +11,7 @@
 #include <linux/of_device.h>
 #include <linux/regulator/consumer.h>
 
+#include <drm/drm_connector.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_mipi_dsi.h>
 #include <drm/drm_panel.h>
@@ -43,6 +44,7 @@ struct boe_panel {
 
        const struct panel_desc *desc;
 
+       enum drm_panel_orientation orientation;
        struct regulator *pp1800;
        struct regulator *avee;
        struct regulator *avdd;
@@ -740,6 +742,7 @@ static int boe_panel_get_modes(struct drm_panel *panel,
        connector->display_info.width_mm = boe->desc->size.width_mm;
        connector->display_info.height_mm = boe->desc->size.height_mm;
        connector->display_info.bpc = boe->desc->bpc;
+       drm_connector_set_panel_orientation(connector, boe->orientation);
 
        return 1;
 }
@@ -779,6 +782,11 @@ static int boe_panel_add(struct boe_panel *boe)
 
        drm_panel_init(&boe->base, dev, &boe_panel_funcs,
                       DRM_MODE_CONNECTOR_DSI);
+       err = of_drm_get_panel_orientation(dev->of_node, &boe->orientation);
+       if (err < 0) {
+               dev_err(dev, "%pOF: failed to get orientation %d\n", dev->of_node, err);
+               return err;
+       }
 
        err = drm_panel_of_backlight(&boe->base);
        if (err)