diff options
| author | Viresh Kumar <viresh.kumar@linaro.org> | 2020-08-13 08:38:37 +0530 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2020-08-24 17:04:31 +0530 |
| commit | 10b217365b9454bc5f31d2801148fdf04939f431 (patch) | |
| tree | 639d54acd8eb5102155b08d491d79cfae76803b9 /drivers/opp | |
| parent | 72f80ce4ef9b756185aab5f1955d8352b6021fba (diff) | |
| download | linux-10b217365b9454bc5f31d2801148fdf04939f431.tar.bz2 | |
opp: Reuse the enabled flag in !target_freq path
The OPP core needs to track if the resources of devices are
enabled/configured or not, as it disables the resources when target_freq
is set to 0.
Handle that with the new enabled flag and remove otherwise complex
conditional statements.
Tested-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/opp')
| -rw-r--r-- | drivers/opp/core.c | 29 |
1 files changed, 11 insertions, 18 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c index 6f43ef4945b7..0b437d483b75 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -886,22 +886,18 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) } if (unlikely(!target_freq)) { + ret = 0; + + if (!opp_table->enabled) + goto put_opp_table; + /* * Some drivers need to support cases where some platforms may * have OPP table for the device, while others don't and * opp_set_rate() just needs to behave like clk_set_rate(). */ - if (!_get_opp_count(opp_table)) { - ret = 0; - goto put_opp_table; - } - - if (!opp_table->required_opp_tables && !opp_table->regulators && - !opp_table->paths) { - dev_err(dev, "target frequency can't be 0\n"); - ret = -EINVAL; + if (!_get_opp_count(opp_table)) goto put_opp_table; - } ret = _set_opp_bw(opp_table, NULL, dev, true); if (ret) @@ -931,14 +927,11 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) old_freq = clk_get_rate(clk); /* Return early if nothing to do */ - if (old_freq == freq) { - if (!opp_table->required_opp_tables && !opp_table->regulators && - !opp_table->paths) { - dev_dbg(dev, "%s: old/new frequencies (%lu Hz) are same, nothing to do\n", - __func__, freq); - ret = 0; - goto put_opp_table; - } + if (opp_table->enabled && old_freq == freq) { + dev_dbg(dev, "%s: old/new frequencies (%lu Hz) are same, nothing to do\n", + __func__, freq); + ret = 0; + goto put_opp_table; } /* |