[PATCHv2 5/8] drm/omap: add support for orientation hints from display drivers

[Sebastian Reichel]

This adds support for setting DRM panel orientation property
based on information from the display driver.

Signed-off-by: Sebastian Reichel <sebastian.reic...@collabora.co.uk>
---
 drivers/gpu/drm/omapdrm/dss/omapdss.h    |  2 ++
 drivers/gpu/drm/omapdrm/omap_connector.c | 10 +++++++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/omapdrm/dss/omapdss.h 
b/drivers/gpu/drm/omapdrm/dss/omapdss.h
index f8f83e826a56..72ebd82409d3 100644
--- a/drivers/gpu/drm/omapdrm/dss/omapdss.h
+++ b/drivers/gpu/drm/omapdrm/dss/omapdss.h
@@ -565,6 +565,8 @@ struct omap_dss_driver {
                            struct videomode *vm);
        void (*get_size)(struct omap_dss_device *dssdev,
                         unsigned int *width, unsigned int *height);
+       void (*get_orientation)(struct omap_dss_device *dssdev,
+                               int *orientation);
 
        int (*set_wss)(struct omap_dss_device *dssdev, u32 wss);
        u32 (*get_wss)(struct omap_dss_device *dssdev);
diff --git a/drivers/gpu/drm/omapdrm/omap_connector.c 
b/drivers/gpu/drm/omapdrm/omap_connector.c
index a33b51484b2d..2f296d29b74b 100644
--- a/drivers/gpu/drm/omapdrm/omap_connector.c
+++ b/drivers/gpu/drm/omapdrm/omap_connector.c
@@ -249,6 +249,7 @@ struct drm_connector *omap_connector_init(struct drm_device 
*dev,
        struct drm_connector *connector = NULL;
        struct omap_connector *omap_connector;
        bool hpd_supported = false;
+       int ret;
 
        DBG("%s", dssdev->name);
 
@@ -267,7 +268,7 @@ struct drm_connector *omap_connector_init(struct drm_device 
*dev,
        drm_connector_helper_add(connector, &omap_connector_helper_funcs);
 
        if (dssdev->driver->register_hpd_cb) {
-               int ret = dssdev->driver->register_hpd_cb(dssdev,
+               ret = dssdev->driver->register_hpd_cb(dssdev,
                                                          omap_connector_hpd_cb,
                                                          omap_connector);
                if (!ret)
@@ -288,6 +289,13 @@ struct drm_connector *omap_connector_init(struct 
drm_device *dev,
        connector->interlace_allowed = 1;
        connector->doublescan_allowed = 0;
 
+       if (dssdev->driver->get_orientation)
+               dssdev->driver->get_orientation(dssdev, 
&connector->display_info.panel_orientation);
+
+       ret = drm_connector_init_panel_orientation_property(connector, 0, 0);
+       if (ret)
+               DBG("%s: Failed to init orientation property (%d)", 
dssdev->name, ret);
+
        return connector;
 
 fail:
-- 
2.15.1

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