Intel FB: support for interlaced video modes

[safe/jmp/linux-2.6] / drivers / video / intelfb / intelfbhw.c

diff --git a/drivers/video/intelfb/intelfbhw.c b/drivers/video/intelfb/intelfbhw.c
index 6a47682..04d0e0f 100644 (file)
--- a/drivers/video/intelfb/intelfbhw.c
+++ b/drivers/video/intelfb/intelfbhw.c
@@ -323,11 +323,7 @@ intelfbhw_validate_mode(struct intelfb_info *dinfo,
                return 1;
        }
 
-       /* Check for interlaced/doublescan modes. */
-       if (var->vmode & FB_VMODE_INTERLACED) {
-               WRN_MSG("Mode is interlaced.\n");
-               return 1;
-       }
+       /* Check for doublescan modes. */
        if (var->vmode & FB_VMODE_DOUBLE) {
                WRN_MSG("Mode is double-scan.\n");
                return 1;
@@ -1220,6 +1216,12 @@ intelfbhw_mode_to_hw(struct intelfb_info *dinfo, struct intelfb_hwstate *hw,
 
        /* Set the palette to 8-bit mode. */
        *pipe_conf &= ~PIPECONF_GAMMA;
+
+       if (var->vmode & FB_VMODE_INTERLACED)
+               *pipe_conf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
+       else
+               *pipe_conf &= ~PIPECONF_INTERLACE_MASK;
+
        return 0;
 }