diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2021-01-13 17:12:52 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2021-01-15 10:25:16 +1000 |
| commit | 8ad95edc39100c22c29ab1d2588332b99f387c8e (patch) | |
| tree | 0ca0f0821408fafff3ea335847ae0161391bba1c /drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c | |
| parent | b5510d1e21d80e2fa2286468ca8c2922f5895ef8 (diff) | |
| download | linux-8ad95edc39100c22c29ab1d2588332b99f387c8e.tar.bz2 | |
drm/nouveau/i2c/gk110-: disable hw-initiated dpcd reads
RM does this around transactions, and it seemed to help while debugging
AUXCH issues on GA102.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c index a23c5f315221..7b2375bff8a9 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c @@ -24,6 +24,12 @@ #include "priv.h" #include "pad.h" +static void +gm200_aux_autodpcd(struct nvkm_i2c *i2c, int aux, bool enable) +{ + nvkm_mask(i2c->subdev.device, 0x00d968 + (aux * 0x50), 0x00010000, enable << 16); +} + static const struct nvkm_i2c_func gm200_i2c = { .pad_x_new = gf119_i2c_pad_x_new, @@ -31,6 +37,7 @@ gm200_i2c = { .aux = 8, .aux_stat = gk104_aux_stat, .aux_mask = gk104_aux_mask, + .aux_autodpcd = gm200_aux_autodpcd, }; int |