diff options
| author |   Neil Armstrong <narmstrong@baylibre.com> | 2019-06-05 17:02:33 +0200 |
|---|---|---|
| committer |   Rob Herring <robh@kernel.org> | 2019-06-10 09:30:20 -0600 |
| commit | 1c3b526e559deada4506732acec4af1879fc1fa0 (patch) | |
| tree | b430b664f7f0c20ff0c1d9b4f237c8bcb8f0dca7 /drivers/gpu | |
| parent | drm/gem_shmem: Use a writecombine mapping for ->vaddr (diff) | |
| download | linux-dev-1c3b526e559deada4506732acec4af1879fc1fa0.tar.xz linux-dev-1c3b526e559deada4506732acec4af1879fc1fa0.zip | |
drm/panfrost: make devfreq optional again
Devfreq runtime usage was made mandatory, thus making panfrost fail to probe
on Amlogic S912 SoCs missing the "operating-points-v2" property.
Make it optional again, leaving PM_DEVFREQ selected by default.
Fixes: f3617b449d0b ("drm/panfrost: Select devfreq")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190605150233.32722-1-narmstrong@baylibre.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_devfreq.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/gpu/drm/panfrost/panfrost_devfreq.c b/drivers/gpu/drm/panfrost/panfrost_devfreq.c index 29fcffdf2d57..db798532b0b6 100644 --- a/drivers/gpu/drm/panfrost/panfrost_devfreq.c +++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.c @@ -140,7 +140,9 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev) return 0; ret = dev_pm_opp_of_add_table(&pfdev->pdev->dev); - if (ret) + if (ret == -ENODEV) /* Optional, continue without devfreq */ + return 0; + else if (ret) return ret; panfrost_devfreq_reset(pfdev); @@ -170,6 +172,9 @@ void panfrost_devfreq_resume(struct panfrost_device *pfdev) { int i; + if (!pfdev->devfreq.devfreq) + return; + panfrost_devfreq_reset(pfdev); for (i = 0; i < NUM_JOB_SLOTS; i++) pfdev->devfreq.slot[i].busy = false; @@ -179,6 +184,9 @@ void panfrost_devfreq_resume(struct panfrost_device *pfdev) void panfrost_devfreq_suspend(struct panfrost_device *pfdev) { + if (!pfdev->devfreq.devfreq) + return; + devfreq_suspend_device(pfdev->devfreq.devfreq); } @@ -188,6 +196,9 @@ static void panfrost_devfreq_update_utilization(struct panfrost_device *pfdev, i ktime_t now; ktime_t last; + if (!pfdev->devfreq.devfreq) + return; + now = ktime_get(); last = pfdev->devfreq.slot[slot].time_last_update; |