diff options
| author | Francisco Jerez <currojerez@riseup.net> | 2010-08-30 21:55:52 +0400 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2010-09-24 10:19:09 +0400 |
| commit | 217275d03d7e1f3e62c7b0d9718df99456b7c356 (patch) | |
| tree | 18637a60e8e767f8415e03e540561db84e8296d6 /drivers/gpu/drm/nouveau/nv04_dfp.c | |
| parent | 7314dec95c054258d5e5a3d1d55e1fd042f8eaad (diff) | |
| download | linux-217275d03d7e1f3e62c7b0d9718df99456b7c356.tar.xz | |
drm/nv40: Try to set up CRE_LCD even if it has unknown bits set.
They don't seem to do anything useful, and we really want to program
CRE_LCD if we aren't lucky enough to find the right CRTC binding
already set.
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv04_dfp.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv04_dfp.c | 35 |
1 files changed, 15 insertions, 20 deletions
diff --git a/drivers/gpu/drm/nouveau/nv04_dfp.c b/drivers/gpu/drm/nouveau/nv04_dfp.c index 0d3206a7046c..e331b4faeb10 100644 --- a/drivers/gpu/drm/nouveau/nv04_dfp.c +++ b/drivers/gpu/drm/nouveau/nv04_dfp.c @@ -253,26 +253,21 @@ static void nv04_dfp_prepare(struct drm_encoder *encoder) nv04_dfp_prepare_sel_clk(dev, nv_encoder, head); - /* Some NV4x have unknown values (0x3f, 0x50, 0x54, 0x6b, 0x79, 0x7f) - * at LCD__INDEX which we don't alter - */ - if (!(*cr_lcd & 0x44)) { - *cr_lcd = 0x3; - - if (nv_two_heads(dev)) { - if (nv_encoder->dcb->location == DCB_LOC_ON_CHIP) - *cr_lcd |= head ? 0x0 : 0x8; - else { - *cr_lcd |= (nv_encoder->dcb->or << 4) & 0x30; - if (nv_encoder->dcb->type == OUTPUT_LVDS) - *cr_lcd |= 0x30; - if ((*cr_lcd & 0x30) == (*cr_lcd_oth & 0x30)) { - /* avoid being connected to both crtcs */ - *cr_lcd_oth &= ~0x30; - NVWriteVgaCrtc(dev, head ^ 1, - NV_CIO_CRE_LCD__INDEX, - *cr_lcd_oth); - } + *cr_lcd = 0x3; + + if (nv_two_heads(dev)) { + if (nv_encoder->dcb->location == DCB_LOC_ON_CHIP) + *cr_lcd |= head ? 0x0 : 0x8; + else { + *cr_lcd |= (nv_encoder->dcb->or << 4) & 0x30; + if (nv_encoder->dcb->type == OUTPUT_LVDS) + *cr_lcd |= 0x30; + if ((*cr_lcd & 0x30) == (*cr_lcd_oth & 0x30)) { + /* avoid being connected to both crtcs */ + *cr_lcd_oth &= ~0x30; + NVWriteVgaCrtc(dev, head ^ 1, + NV_CIO_CRE_LCD__INDEX, + *cr_lcd_oth); } } } |