drm/nouveau: Make clock gate support conditional

The recently introduced clock gate support breaks on Tegra chips because
no thermal support is enabled for those devices. Conditionalize the code
on the existence of thermal support to fix this.

Fixes: b138eca661 ("drm/nouveau: Add support for basic clockgating on Kepler1")
Cc: Martin Peres <martin.peres@free.fr>
Cc: Lyude Paul <lyude@redhat.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Thierry Reding 2018-02-07 18:40:27 +01:00 коммит произвёл Ben Skeggs
Родитель b515483e12
Коммит 9225626989
1 изменённых файлов: 3 добавлений и 3 удалений

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@ -301,7 +301,7 @@ nvkm_therm_attr_set(struct nvkm_therm *therm,
void
nvkm_therm_clkgate_enable(struct nvkm_therm *therm)
{
if (!therm->func->clkgate_enable || !therm->clkgating_enabled)
if (!therm || !therm->func->clkgate_enable || !therm->clkgating_enabled)
return;
nvkm_debug(&therm->subdev,
@ -312,7 +312,7 @@ nvkm_therm_clkgate_enable(struct nvkm_therm *therm)
void
nvkm_therm_clkgate_fini(struct nvkm_therm *therm, bool suspend)
{
if (!therm->func->clkgate_fini || !therm->clkgating_enabled)
if (!therm || !therm->func->clkgate_fini || !therm->clkgating_enabled)
return;
nvkm_debug(&therm->subdev,
@ -395,7 +395,7 @@ void
nvkm_therm_clkgate_init(struct nvkm_therm *therm,
const struct nvkm_therm_clkgate_pack *p)
{
if (!therm->func->clkgate_init || !therm->clkgating_enabled)
if (!therm || !therm->func->clkgate_init || !therm->clkgating_enabled)
return;
therm->func->clkgate_init(therm, p);