From 1f403d9cca359531e16bc685ed5d619c77762004 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 6 Jul 2010 11:20:17 +1000 Subject: [PATCH] drm/nv50: set DP display power state during DPMS Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nv50_sor.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nv50_sor.c b/drivers/gpu/drm/nouveau/nv50_sor.c index 45a617df..bcd4cf8 100644 --- a/drivers/gpu/drm/nouveau/nv50_sor.c +++ b/drivers/gpu/drm/nouveau/nv50_sor.c @@ -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) - nouveau_dp_link_train(encoder); + 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 -- 2.7.4