From ea9197cc323839ef3d5280c0453b2c622caa6bc7 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Mon, 3 Jun 2013 16:07:06 +1000 Subject: [PATCH] drm/nv50/disp: force dac power state during load detect MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit fdo#64904 Reported-by: Gerhard Bräunlich Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c | 4 ++++ drivers/gpu/drm/nouveau/core/include/core/class.h | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c index d0817d94454c..a60a5accb540 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c @@ -50,11 +50,15 @@ nv50_dac_sense(struct nv50_disp_priv *priv, int or, u32 loadval) { const u32 doff = (or * 0x800); int load = -EINVAL; + nv_mask(priv, 0x61a004 + doff, 0x807f0000, 0x80150000); + nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000); nv_wr32(priv, 0x61a00c + doff, 0x00100000 | loadval); udelay(9500); nv_wr32(priv, 0x61a00c + doff, 0x80000000); load = (nv_rd32(priv, 0x61a00c + doff) & 0x38000000) >> 27; nv_wr32(priv, 0x61a00c + doff, 0x00000000); + nv_mask(priv, 0x61a004 + doff, 0x807f0000, 0x80550000); + nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000); return load; } diff --git a/drivers/gpu/drm/nouveau/core/include/core/class.h b/drivers/gpu/drm/nouveau/core/include/core/class.h index 0a393f7f055f..5a5961b6a6a3 100644 --- a/drivers/gpu/drm/nouveau/core/include/core/class.h +++ b/drivers/gpu/drm/nouveau/core/include/core/class.h @@ -218,7 +218,7 @@ struct nv04_display_class { #define NV50_DISP_DAC_PWR_STATE 0x00000040 #define NV50_DISP_DAC_PWR_STATE_ON 0x00000000 #define NV50_DISP_DAC_PWR_STATE_OFF 0x00000040 -#define NV50_DISP_DAC_LOAD 0x0002000c +#define NV50_DISP_DAC_LOAD 0x00020100 #define NV50_DISP_DAC_LOAD_VALUE 0x00000007 #define NV50_DISP_PIOR_MTHD 0x00030000 -- 2.20.1