[PATCH V2 2/3] firmware: arm_scmi: Add support for marking certain frequencies as boost

From: Sibi Sankar
Date: Tue Feb 27 2024 - 12:37:26 EST


All opps above the sustained level/frequency are treated as boost, so mark
them accordingly.

Suggested-by: Sudeep Holla <sudeep.holla@xxxxxxx>
Signed-off-by: Sibi Sankar <quic_sibis@xxxxxxxxxxx>
---

v2:
* Remove sustained_freq check. [Pierre]
* simplify sustained_freq_khz calculation. [Sudeep]

drivers/firmware/arm_scmi/perf.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c
index 981e327e63e3..caf6191df300 100644
--- a/drivers/firmware/arm_scmi/perf.c
+++ b/drivers/firmware/arm_scmi/perf.c
@@ -850,7 +850,7 @@ static int scmi_dvfs_device_opps_add(const struct scmi_protocol_handle *ph,
struct device *dev, u32 domain)
{
int idx, ret;
- unsigned long freq;
+ unsigned long freq, sustained_freq;
struct dev_pm_opp_data data = {};
struct perf_dom_info *dom;

@@ -858,12 +858,18 @@ static int scmi_dvfs_device_opps_add(const struct scmi_protocol_handle *ph,
if (IS_ERR(dom))
return PTR_ERR(dom);

+ sustained_freq = dom->sustained_freq_khz * 1000UL;
+
for (idx = 0; idx < dom->opp_count; idx++) {
if (!dom->level_indexing_mode)
freq = dom->opp[idx].perf * dom->mult_factor;
else
freq = dom->opp[idx].indicative_freq * dom->mult_factor;

+ /* All opps above the sustained level/frequency are treated as boost */
+ if (freq > sustained_freq)
+ data.turbo = true;
+
data.level = dom->opp[idx].perf;
data.freq = freq;

--
2.34.1