diff options
| author | Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | 2012-02-22 18:53:08 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-03-12 12:31:35 -0700 |
| commit | 85115b995d54857bbaa30a4966ed5c897d903387 (patch) | |
| tree | d3a83245eb53c4e3de16754da3e57b152dcba6c1 /drivers/video | |
| parent | 7be431e4a9ab89aa208116fd4001be0361a0c89c (diff) | |
viafb: fix IGA1 modesetting on VX900
commit e29206381a1436e0f47c0f5b9a23159a03c57715 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | 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 8bdf80e270e2..8497727d66de 100644 --- a/drivers/video/via/hw.c +++ b/drivers/video/via/hw.c @@ -1810,6 +1810,9 @@ 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)); |