On 10/06/2022 09:20, Viresh Kumar wrote:
Reuse _opp_compare_key() in _opp_add_static_v2() instead of just
comparing frequency while finding suspend frequency. Also add a comment
over _opp_compare_key() explaining its return values.
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
---
drivers/opp/core.c | 6 ++++++
drivers/opp/of.c | 4 ++--
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index fe447f41c99e..9f284dc0d9d7 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -1618,6 +1618,12 @@ static bool _opp_supported_by_regulators(struct dev_pm_opp *opp,
return true;
}
+/*
+ * Returns
+ * 0: opp1 == opp2
+ * 1: opp1 > opp2
+ * -1: opp1 < opp2
+ */
int _opp_compare_key(struct dev_pm_opp *opp1, struct dev_pm_opp *opp2)
{
if (opp1->rate != opp2->rate)
diff --git a/drivers/opp/of.c b/drivers/opp/of.c
index bec9644a7260..843923ab9d66 100644
--- a/drivers/opp/of.c
+++ b/drivers/opp/of.c
@@ -929,8 +929,8 @@ static struct dev_pm_opp *_opp_add_static_v2(struct opp_table *opp_table,
/* OPP to select on device suspend */
if (of_property_read_bool(np, "opp-suspend")) {
if (opp_table->suspend_opp) {
- /* Pick the OPP with higher rate as suspend OPP */
- if (new_opp->rate > opp_table->suspend_opp->rate) {
+ /* Pick the OPP with higher rate/bw/level as suspend OPP */
+ if (_opp_compare_key(opp_table, new_opp, opp_table->suspend_opp) == 1) {
opp_table->suspend_opp->suspend = false;
new_opp->suspend = true;
opp_table->suspend_opp = new_opp;
FYI ... if I checkout commit 00d776d33da9 ("OPP: Reuse
_opp_compare_key() in _opp_add_static_v2()") from next-20220622
it does not compile ...
drivers/opp/of.c: In function ‘_opp_add_static_v2’:
drivers/opp/of.c:933:25: error: passing argument 1 of ‘_opp_compare_key’ from incompatible pointer type [-Werror=incompatible-pointer-types]
if (_opp_compare_key(opp_table, new_opp, opp_table->suspend_opp) == 1) {
^~~~~~~~~
In file included from drivers/opp/of.c:22:0:
drivers/opp/opp.h:228:5: note: expected ‘struct dev_pm_opp *’ but argument is of type ‘struct opp_table *’
int _opp_compare_key(struct dev_pm_opp *opp1, struct dev_pm_opp *opp2);
^~~~~~~~~~~~~~~~
drivers/opp/of.c:933:8: error: too many arguments to function ‘_opp_compare_key’
if (_opp_compare_key(opp_table, new_opp, opp_table->suspend_opp) == 1) {
^~~~~~~~~~~~~~~~
In file included from drivers/opp/of.c:22:0:
drivers/opp/opp.h:228:5: note: declared here
int _opp_compare_key(struct dev_pm_opp *opp1, struct dev_pm_opp *opp2);
^~~~~~~~~~~~~~~~
This breaks bisecting -next and so would be good to fix this.
Cheers
Jon
--
nvpublic
