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| author | Dmitry Osipenko <digetx@gmail.com> | 2021-12-01 02:23:15 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2021-12-16 14:07:07 +0100 |
| commit | 6b6776e2ab8ac7086cf31ad339411df7681715b7 (patch) | |
| tree | b084eddd879c84c74c8549a47335d0a40843aaf3 /drivers/gpu/host1x/syncpt.c | |
| parent | d53830eec05561a0e9918fff8df3861bde74d159 (diff) | |
| download | lwn-6b6776e2ab8ac7086cf31ad339411df7681715b7.tar.gz lwn-6b6776e2ab8ac7086cf31ad339411df7681715b7.zip | |
gpu: host1x: Add initial runtime PM and OPP support
Add runtime PM and OPP support to the Host1x driver. For the starter we
will keep host1x always-on because dynamic power management require a major
refactoring of the driver code since lot's of code paths are missing the
RPM handling and we're going to remove some of these paths in the future.
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30
Tested-by: Paul Fertser <fercerpav@gmail.com> # PAZ00 T20
Tested-by: Nicolas Chauvet <kwizart@gmail.com> # PAZ00 T20 and TK1 T124
Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/host1x/syncpt.c')
| -rw-r--r-- | drivers/gpu/host1x/syncpt.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/gpu/host1x/syncpt.c b/drivers/gpu/host1x/syncpt.c index d198a10848c6..e08e331e46ae 100644 --- a/drivers/gpu/host1x/syncpt.c +++ b/drivers/gpu/host1x/syncpt.c @@ -143,6 +143,8 @@ void host1x_syncpt_restore(struct host1x *host) for (i = 0; i < host1x_syncpt_nb_bases(host); i++) host1x_hw_syncpt_restore_wait_base(host, sp_base + i); + host1x_hw_syncpt_enable_protection(host); + wmb(); } @@ -366,9 +368,6 @@ int host1x_syncpt_init(struct host1x *host) host->syncpt = syncpt; host->bases = bases; - host1x_syncpt_restore(host); - host1x_hw_syncpt_enable_protection(host); - /* Allocate sync point to use for clearing waits for expired fences */ host->nop_sp = host1x_syncpt_alloc(host, 0, "reserved-nop"); if (!host->nop_sp) |