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authorTomi Valkeinen <tomi.valkeinen@ti.com>2012-11-15 13:20:02 +0200
committerTomi Valkeinen <tomi.valkeinen@ti.com>2012-11-27 12:27:02 +0200
commit251886d8bc6f565c14acb34b12c007b994c2e56d (patch)
tree972c2ea0dcd3af64427e694d75335e0c7a09d179 /drivers/video/omap2
parent3c91ee8cc9fa785ed9c4ad250d3f293f279153fe (diff)
OMAPDSS: DISPC: pclk & lclk rates for writeback
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 <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/video/omap2')
-rw-r--r--drivers/video/omap2/dss/dispc.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 531961424d3..fff26fd5d17 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -3232,14 +3232,24 @@ 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);
}