Hi,
On the gta04 (dm3730 cpu), cpufreq does not work properly with above-mentioned
kernel.
cpufreq-info just shows
analyzing CPU 0:
no or unknown cpufreq driver is active on this CPU
maximum transition latency: 0.00 ms.
dmesg log shows these interesting lines.
[ 3.140655] core: _opp_supported_by_regulators: OPP minuV: 1012500 maxuV: 1012500, not supported by regulator
[ 3.152709] cpu cpu0: _opp_add: OPP not supported by regulators (300000000)
[ 3.160278] core: _opp_supported_by_regulators: OPP minuV: 1200000 maxuV: 1200000, not supported by regulator
[ 3.171142] cpu cpu0: _opp_add: OPP not supported by regulators (600000000)
[ 3.178710] core: _opp_supported_by_regulators: OPP minuV: 1325000 maxuV: 1325000, not supported by regulator
[ 3.189483] cpu cpu0: _opp_add: OPP not supported by regulators
(800000000)
looking through logs shows that these lines first appeared in
next-20190506. They were not present in next-20190503. If I understand that
correcly it is about vdd1.
Analysis reveals:
in
int regulator_is_supported_voltage(struct regulator *regulator,
int min_uV, int max_uV)
the following if fails:
/* Any voltage within constrains range is fine? */
if (rdev->desc->continuous_voltage_range) {
The following hack did the trick
diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c
index 6fa15b2d6fb3..f7bfdf53701d 100644
--- a/drivers/regulator/twl-regulator.c
+++ b/drivers/regulator/twl-regulator.c
@@ -478,6 +478,7 @@ static const struct twlreg_info TWL4030_INFO_##label = { \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.enable_time = turnon_delay, \
+ .continuous_voltage_range = true, \
.of_map_mode = twl4030reg_map_mode, \
}, \
}
not sure whether it is correct, whether these things are continuous enough.
If that all is ok, I will of course submit a formal patch.
Regards
Andreas
Attachment:
pgplmLXpFkCcn.pgp
Description: OpenPGP digital signature
