diff options
| author | Akhil P Oommen <quic_akhilpo@quicinc.com> | 2023-01-02 16:18:29 +0530 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2023-03-20 10:53:27 -0700 |
| commit | ead5d3e5eb37924d31875b92c8c0983627b4f343 (patch) | |
| tree | 2f7b8c91cb214f264a5a68074fa4a884ad5fbfe4 /drivers/gpu/drm/msm/msm_gpu.h | |
| parent | e752ab11dcb48353727ea26eefd740155e028865 (diff) | |
drm/msm/a6xx: Vote for cx gdsc from gpu driver
When a device has multiple power domains, dev->power_domain is left
empty during probe. That didn't cause any issue so far because we are
freeloading on smmu driver's vote on cx gdsc. Instead of that, create
a device_link between cx genpd device and gmu device to keep a vote from
gpu driver.
Before this patch:
localhost ~ # cat /sys/kernel/debug/pm_genpd/pm_genpd_summary
gx_gdsc on 0
/devices/genpd:1:3d6a000.gmu active 0
cx_gdsc on 0
/devices/platform/soc@0/3da0000.iommu active 0
After this patch:
localhost ~ # cat /sys/kernel/debug/pm_genpd/pm_genpd_summary
gx_gdsc on 0
/devices/genpd:1:3d6a000.gmu active 0
cx_gdsc on 0
/devices/platform/soc@0/3da0000.iommu active 0
/devices/genpd:0:3d6a000.gmu active 0
Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/516468/
Link: https://lore.kernel.org/r/20230102161757.v5.3.I7f545d8494dcdbe6e96a15fbe8aaf5bb0c003d50@changeid
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gpu.h')
0 files changed, 0 insertions, 0 deletions