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Intel FB: support for interlaced video modes
Intel framebuffer now supports interlaced video modes. Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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68e5e9d734
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10b98368a0
2 changed files with 11 additions and 5 deletions
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@ -323,11 +323,7 @@ intelfbhw_validate_mode(struct intelfb_info *dinfo,
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return 1;
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}
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/* Check for interlaced/doublescan modes. */
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if (var->vmode & FB_VMODE_INTERLACED) {
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WRN_MSG("Mode is interlaced.\n");
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return 1;
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}
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/* Check for doublescan modes. */
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if (var->vmode & FB_VMODE_DOUBLE) {
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WRN_MSG("Mode is double-scan.\n");
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return 1;
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@ -1220,6 +1216,12 @@ intelfbhw_mode_to_hw(struct intelfb_info *dinfo, struct intelfb_hwstate *hw,
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/* Set the palette to 8-bit mode. */
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*pipe_conf &= ~PIPECONF_GAMMA;
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if (var->vmode & FB_VMODE_INTERLACED)
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*pipe_conf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
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else
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*pipe_conf &= ~PIPECONF_INTERLACE_MASK;
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return 0;
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}
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@ -286,6 +286,10 @@
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#define PIPECONF_UNLOCKED 0
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#define PIPECONF_GAMMA (1 << 24)
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#define PIPECONF_PALETTE 0
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#define PIPECONF_PROGRESSIVE (0 << 21)
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#define PIPECONF_INTERLACE_W_FIELD_INDICATION (6 << 21)
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#define PIPECONF_INTERLACE_FIELD_0_ONLY (7 << 21)
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#define PIPECONF_INTERLACE_MASK (7 << 21)
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#define DISPARB 0x70030
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#define DISPARB_AEND_MASK 0x1ff
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