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authorViresh Kumar <viresh.kumar@linaro.org>2020-08-13 06:08:37 +0300
committerViresh Kumar <viresh.kumar@linaro.org>2020-08-24 14:34:31 +0300
commit10b217365b9454bc5f31d2801148fdf04939f431 (patch)
tree639d54acd8eb5102155b08d491d79cfae76803b9 /drivers/opp
parent72f80ce4ef9b756185aab5f1955d8352b6021fba (diff)
downloadlinux-10b217365b9454bc5f31d2801148fdf04939f431.tar.xz
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.c29
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;
}
/*