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| author | Clément Péron <peron.clem@gmail.com> | 2020-07-10 11:54:05 +0200 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2020-08-07 10:11:26 -0600 |
| commit | fd587ff01d59554144e2fd20f4113638a45c7c4e (patch) | |
| tree | 7ab708d65960edb19811dbdafdccdc9ce38c6fe8 /drivers/gpu/drm/panfrost/panfrost_device.c | |
| parent | 512f21227fd3d2dbe7aad57a995b9732229c9b56 (diff) | |
| download | linux-stable-fd587ff01d59554144e2fd20f4113638a45c7c4e.tar.gz linux-stable-fd587ff01d59554144e2fd20f4113638a45c7c4e.tar.bz2 linux-stable-fd587ff01d59554144e2fd20f4113638a45c7c4e.zip | |
drm/panfrost: add regulators to devfreq
Some OPP tables specify voltage for each frequency. Devfreq can
handle these regulators but they should be get only 1 time to avoid
issue and know who is in charge.
If OPP table is probe don't init regulator.
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Signed-off-by: Clément Péron <peron.clem@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200710095409.407087-11-peron.clem@gmail.com
Diffstat (limited to 'drivers/gpu/drm/panfrost/panfrost_device.c')
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_device.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/panfrost/panfrost_device.c b/drivers/gpu/drm/panfrost/panfrost_device.c index f1474b961def..e6896733838a 100644 --- a/drivers/gpu/drm/panfrost/panfrost_device.c +++ b/drivers/gpu/drm/panfrost/panfrost_device.c @@ -225,9 +225,12 @@ int panfrost_device_init(struct panfrost_device *pfdev) goto out_clk; } - err = panfrost_regulator_init(pfdev); - if (err) - goto out_devfreq; + /* OPP will handle regulators */ + if (!pfdev->pfdevfreq.opp_of_table_added) { + err = panfrost_regulator_init(pfdev); + if (err) + goto out_devfreq; + } err = panfrost_reset_init(pfdev); if (err) { |