Change the dispc_plane_pclk_rate and dispc_plane_lclk_rate functions to
return 0 if the given plane is the writeback plane. The clocks are not
valid for WB, but returning 0 from these functions instead of running
into BUG() will simplify the code that uses these functions.

Signed-off-by: Tomi Valkeinen <[email protected]>
---
 drivers/video/omap2/dss/dispc.c |   14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index e219eda..8f8d628 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -3226,14 +3226,24 @@ unsigned long dispc_core_clk_rate(void)
 
 static unsigned long dispc_plane_pclk_rate(enum omap_plane plane)
 {
-       enum omap_channel channel = dispc_ovl_get_channel_out(plane);
+       enum omap_channel channel;
+
+       if (plane == OMAP_DSS_WB)
+               return 0;
+
+       channel = dispc_ovl_get_channel_out(plane);
 
        return dispc_mgr_pclk_rate(channel);
 }
 
 static unsigned long dispc_plane_lclk_rate(enum omap_plane plane)
 {
-       enum omap_channel channel = dispc_ovl_get_channel_out(plane);
+       enum omap_channel channel;
+
+       if (plane == OMAP_DSS_WB)
+               return 0;
+
+       channel = dispc_ovl_get_channel_out(plane);
 
        return dispc_mgr_lclk_rate(channel);
 }
-- 
1.7.10.4

--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to