drm/omap: Add ovl checking funcs to dispc_ops

In order to be able to dynamically assign overlays to planes we need to
be able to asses the overlay capabilities.

Add a helper function to be able to retrieve the supported capabilities
of an overlay.

And export the function to check if a fourcc is supported on a given
overlay.

Signed-off-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211117141928.771082-4-narmstrong@baylibre.com

diff --git a/drivers/gpu/drm/omapdrm/dss/dispc.c b/drivers/gpu/drm/omapdrm/dss/dispc.c
index d3cf9d9..2da4d36 100644 (file)
--- a/drivers/gpu/drm/omapdrm/dss/dispc.c
+++ b/drivers/gpu/drm/omapdrm/dss/dispc.c
@@ -1281,8 +1281,8 @@ static u32 dispc_ovl_get_burst_size(struct dispc_device *dispc,
        return dispc->feat->burst_size_unit * 8;
 }
 
-static bool dispc_ovl_color_mode_supported(struct dispc_device *dispc,
-                                          enum omap_plane_id plane, u32 fourcc)
+bool dispc_ovl_color_mode_supported(struct dispc_device *dispc,
+                                   enum omap_plane_id plane, u32 fourcc)
 {
        const u32 *modes;
        unsigned int i;
@@ -2489,6 +2489,11 @@ static int dispc_ovl_calc_scaling_44xx(struct dispc_device *dispc,
        return 0;
 }
 
+enum omap_overlay_caps dispc_ovl_get_caps(struct dispc_device *dispc, enum omap_plane_id plane)
+{
+       return dispc->feat->overlay_caps[plane];
+}
+
 #define DIV_FRAC(dividend, divisor) \
        ((dividend) * 100 / (divisor) - ((dividend) / (divisor) * 100))
 

diff --git a/drivers/gpu/drm/omapdrm/dss/dss.h b/drivers/gpu/drm/omapdrm/dss/dss.h
index 14c39f7..4ff02fb 100644 (file)
--- a/drivers/gpu/drm/omapdrm/dss/dss.h
+++ b/drivers/gpu/drm/omapdrm/dss/dss.h
@@ -398,6 +398,9 @@ const u32 *dispc_ovl_get_color_modes(struct dispc_device *dispc,
                                            enum omap_plane_id plane);
 
 void dispc_ovl_get_max_size(struct dispc_device *dispc, u16 *width, u16 *height);
+bool dispc_ovl_color_mode_supported(struct dispc_device *dispc,
+                                   enum omap_plane_id plane, u32 fourcc);
+enum omap_overlay_caps dispc_ovl_get_caps(struct dispc_device *dispc, enum omap_plane_id plane);
 
 u32 dispc_read_irqstatus(struct dispc_device *dispc);
 void dispc_clear_irqstatus(struct dispc_device *dispc, u32 mask);