Add a sync_state implementation, very similar to the one already present
in the RPMhPD driver.
Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
---
drivers/soc/qcom/rpmpd.c | 34 +++++++++++++++++++++++++++++++++-
1 file changed, 33 insertions(+), 1 deletion(-)
diff --git a/drivers/soc/qcom/rpmpd.c b/drivers/soc/qcom/rpmpd.c
index 99b017fd76b7..fa58c04214ee 100644
--- a/drivers/soc/qcom/rpmpd.c
+++ b/drivers/soc/qcom/rpmpd.c
@@ -58,6 +58,7 @@ struct rpmpd {
struct qcom_smd_rpm *rpm;
unsigned int max_state;
__le32 key;
+ bool state_synced;
};
struct rpmpd_desc {
@@ -823,7 +824,11 @@ static int rpmpd_aggregate_corner(struct rpmpd *pd)
unsigned int this_active_corner = 0, this_sleep_corner = 0;
unsigned int peer_active_corner = 0, peer_sleep_corner = 0;
- to_active_sleep(pd, pd->corner, &this_active_corner, &this_sleep_corner);
+ /* Clamp to the highest corner/level if sync_state isn't done yet */
+ if (!pd->state_synced)
+ this_active_corner = this_sleep_corner = pd->max_state - 1;
+ else
+ to_active_sleep(pd, pd->corner, &this_active_corner, &this_sleep_corner);
if (peer && peer->enabled)
to_active_sleep(peer, peer->corner, &peer_active_corner,
@@ -973,11 +978,38 @@ static int rpmpd_probe(struct platform_device *pdev)
return of_genpd_add_provider_onecell(pdev->dev.of_node, data);
}
+static void rpmpd_sync_state(struct device *dev)
+{
+ const struct rpmpd_desc *desc = of_device_get_match_data(dev);
+ struct rpmpd **rpmpds = desc->rpmpds;
+ struct rpmpd *pd;
+ unsigned int i;
+ int ret;
+
+ mutex_lock(&rpmpd_lock);
+ for (i = 0; i < desc->num_pds; i++) {
+ pd = rpmpds[i];
+ if (!pd)
+ continue;
+
+ pd->state_synced = true;
+
+ if (!pd->enabled)
+ pd->corner = 0;
+
+ ret = rpmpd_aggregate_corner(pd);
+ if (ret)
+ dev_err(dev, "failed to sync %s: %d\n", pd->pd.name, ret);
+ }
+ mutex_unlock(&rpmpd_lock);
+}
+
static struct platform_driver rpmpd_driver = {
.driver = {
.name = "qcom-rpmpd",
.of_match_table = rpmpd_match_table,
.suppress_bind_attrs = true,
+ .sync_state = rpmpd_sync_state,
},
.probe = rpmpd_probe,
};
---
base-commit: 47045630bc409ce6606d97b790895210dd1d517d
change-id: 20230619-topic-rpmpd_syncstate-f62785941281
Best regards,
--
Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
