gpu: nvgpu: missing power sensor detection

Monitoring INA3221 is currently missing on some customer designs.
Use PCI vendor/device ids and VBIOS version to identify such device,
and set power_sensor_missing flag. This flag is subsequently used
to skip power device and power policy programming in PMU.

Bug 1903258

Change-Id: Ia6b5ce563b5cc3593e138635639025b830e4535e
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: http://git-master/r/1460936
(cherry picked from commit 42f236c210931d28d2699858bb0663b91cf11046)
Reviewed-on: http://git-master/r/1463104
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 763cccaf..60d04b64 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -1158,6 +1158,10 @@ struct gk20a {
         struct nvgpu_mem_alloc_tracker *vmallocs;
         struct nvgpu_mem_alloc_tracker *kmallocs;
 #endif
+
+        /* Some boards might be missing power sensor, preventing
+         * from monitoring power, current and voltage */
+        bool power_sensor_missing;
 };
 
 static inline unsigned long gk20a_get_gr_idle_timeout(struct gk20a *g)