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authorMartin Peres <martin.peres@free.fr>2015-09-09 04:05:51 +0300
committerBen Skeggs <bskeggs@redhat.com>2015-11-03 14:57:28 +1000
commit9ded822e084a5fc2b2d9b2ed636aa5fab6b9ec70 (patch)
treeb063277d9b976cf2b45f3e2f78c9c2251a328777 /drm/nouveau/nvkm/subdev/volt
parente43899069738ac442cd68a9e8513b7f2e04d6267 (diff)
downloadnouveau-9ded822e084a5fc2b2d9b2ed636aa5fab6b9ec70.tar.gz
volt: add support for non-vid-based voltage controllers
This patch is not ideal but it definitely beats a rewrite of the current interface and is very self-contained. Signed-off-by: Martin Peres <martin.peres@free.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drm/nouveau/nvkm/subdev/volt')
-rw-r--r--drm/nouveau/nvkm/subdev/volt/base.c11
-rw-r--r--drm/nouveau/nvkm/subdev/volt/priv.h2
2 files changed, 12 insertions, 1 deletions
diff --git a/drm/nouveau/nvkm/subdev/volt/base.c b/drm/nouveau/nvkm/subdev/volt/base.c
index 4752dbd33..50b5649ad 100644
--- a/drm/nouveau/nvkm/subdev/volt/base.c
+++ b/drm/nouveau/nvkm/subdev/volt/base.c
@@ -30,7 +30,12 @@
int
nvkm_volt_get(struct nvkm_volt *volt)
{
- int ret = volt->func->vid_get(volt), i;
+ int ret, i;
+
+ if (volt->func->volt_get)
+ return volt->func->volt_get(volt);
+
+ ret = volt->func->vid_get(volt);
if (ret >= 0) {
for (i = 0; i < volt->vid_nr; i++) {
if (volt->vid[i].vid == ret)
@@ -46,6 +51,10 @@ nvkm_volt_set(struct nvkm_volt *volt, u32 uv)
{
struct nvkm_subdev *subdev = &volt->subdev;
int i, ret = -EINVAL;
+
+ if (volt->func->volt_set)
+ return volt->func->volt_set(volt, uv);
+
for (i = 0; i < volt->vid_nr; i++) {
if (volt->vid[i].uv == uv) {
ret = volt->func->vid_set(volt, volt->vid[i].vid);
diff --git a/drm/nouveau/nvkm/subdev/volt/priv.h b/drm/nouveau/nvkm/subdev/volt/priv.h
index 394f37c72..cdb3d9f80 100644
--- a/drm/nouveau/nvkm/subdev/volt/priv.h
+++ b/drm/nouveau/nvkm/subdev/volt/priv.h
@@ -9,6 +9,8 @@ int nvkm_volt_new_(const struct nvkm_volt_func *, struct nvkm_device *,
int index, struct nvkm_volt **);
struct nvkm_volt_func {
+ int (*volt_get)(struct nvkm_volt *);
+ int (*volt_set)(struct nvkm_volt *, u32 uv);
int (*vid_get)(struct nvkm_volt *);
int (*vid_set)(struct nvkm_volt *, u8 vid);
int (*set_id)(struct nvkm_volt *, u8 id, int condition);