Messages in this thread Patch in this message | | | From | Nicolas Boichat <> | Subject | [PATCH v6 3/4] drm/panfrost: devfreq: Disable devfreq when num_supplies > 1 | Date | Tue, 5 Jan 2021 08:11:18 +0800 |
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GPUs with more than a single regulator (e.g. G-57 on MT8183) will require platform-specific handling, disable devfreq for now.
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> ---
Changes in v6: - New change
drivers/gpu/drm/panfrost/panfrost_devfreq.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/panfrost/panfrost_devfreq.c b/drivers/gpu/drm/panfrost/panfrost_devfreq.c index f44d28fad085..1f49043aae73 100644 --- a/drivers/gpu/drm/panfrost/panfrost_devfreq.c +++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.c @@ -92,6 +92,15 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev) struct thermal_cooling_device *cooling; struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq; + if (pfdev->comp->num_supplies > 1) { + /* + * GPUs with more than 1 supply require platform-specific handling: + * continue without devfreq + */ + DRM_DEV_ERROR(dev, "More than 1 supply is not supported yet\n"); + return 0; + } + opp_table = dev_pm_opp_set_regulators(dev, pfdev->comp->supply_names, pfdev->comp->num_supplies); if (IS_ERR(opp_table)) { -- 2.29.2.729.g45daf8777d-goog
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