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drm/nv50: set DP display power state during DPMS

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2010-07-06 11:20:17 +10:00
parent ea4718d1dc
commit 1f403d9cca
1 changed files with 16 additions and 2 deletions
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16
drivers/gpu/drm/nouveau/nv50_sor.c
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@ -115,8 +115,22 @@ nv50_sor_dpms(struct drm_encoder *encoder, int mode)
nv_rd32(dev, NV50_PDISPLAY_SOR_DPMS_STATE(or)));
}
if (nv_encoder->dcb->type == OUTPUT_DP && mode == DRM_MODE_DPMS_ON)
if (nv_encoder->dcb->type == OUTPUT_DP) {
struct nouveau_i2c_chan *auxch;
auxch = nouveau_i2c_find(dev, nv_encoder->dcb->i2c_index);
if (!auxch)
return;
if (mode == DRM_MODE_DPMS_ON) {
u8 status = DP_SET_POWER_D0;
nouveau_dp_auxch(auxch, 8, DP_SET_POWER, &status, 1);
nouveau_dp_link_train(encoder);
} else {
u8 status = DP_SET_POWER_D3;
nouveau_dp_auxch(auxch, 8, DP_SET_POWER, &status, 1);
}
}
}
static void