linux-kernel - [PATCH v10 2/2] drm/panel: read panel orientation for BOE tv101wum-nl6

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Date:   Thu,  5 Mar 2020 16:21:12 -0800
From:   Derek Basehore <dbasehore@...omium.org>
To:     linux-kernel@...r.kernel.org
Cc:     Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org,
        Derek Basehore <dbasehore@...omium.org>
Subject: [PATCH v10 2/2] 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.

Signed-off-by: Derek Basehore <dbasehore@...omium.org>
---
 drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
index 48a164257d18..ee2d96413900 100644
--- 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;
@@ -717,6 +719,7 @@ 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;
 }
@@ -756,6 +759,9 @@ 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)
+		return err;
 
 	err = drm_panel_of_backlight(&boe->base);
 	if (err)
-- 
2.25.0.265.gbab2e86ba0-goog