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    Subject[PATCH 4/5] viafb: fix IGA1 modesetting on VX900
    Date
    Even if the documentation calls this bit "Reserved" it has to be set
    to 0 for correct modesetting on IGA1.

    Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
    Cc: stable@vger.kernel.org
    ---
    drivers/video/via/hw.c | 3 +++
    1 files changed, 3 insertions(+), 0 deletions(-)

    diff --git a/drivers/video/via/hw.c b/drivers/video/via/hw.c
    index e6e7a8f..376af05 100644
    --- a/drivers/video/via/hw.c
    +++ b/drivers/video/via/hw.c
    @@ -1804,6 +1804,9 @@ static void hw_init(void)
    break;
    }

    + /* magic required on VX900 for correct modesetting on IGA1 */
    + via_write_reg_mask(VIACR, 0x45, 0x00, 0x01);
    +
    /* probably this should go to the scaling code one day */
    via_write_reg_mask(VIACR, 0xFD, 0, 0x80); /* VX900 hw scale on IGA2 */
    viafb_write_regx(scaling_parameters, ARRAY_SIZE(scaling_parameters));
    --
    1.7.9


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