ARM: omap: fix oops in drivers/video/omap2/dss/dpi.c

[karo-tx-linux.git] / drivers / video / omap2 / dss / dpi.c

diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index 395d658a94fcab1e7e54131e96485b379fee07a7..faaf305fda279615a6748ff0cfbbe78e315049a2 100644 (file)
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -180,6 +180,11 @@ int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
 {
        int r;
 
+       if (cpu_is_omap34xx() && !dpi.vdds_dsi_reg) {
+               DSSERR("no VDSS_DSI regulator\n");
+               return -ENODEV;
+       }
+
        if (dssdev->manager == NULL) {
                DSSERR("failed to enable display: no manager\n");
                return -ENODEV;