On 7/7/25 15:49, Luca Weiss wrote:
Hi Casey,
On Mon Jul 7, 2025 at 3:23 PM CEST, Casey Connolly wrote:
On 7/7/25 12:18, Luca Weiss wrote:
Add the power domains exposed by RPMH in the Qualcomm Milos platform.
\o/ codenames!
Signed-off-by: Luca Weiss <[email protected]>
---
drivers/pmdomain/qcom/rpmhpd.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/drivers/pmdomain/qcom/rpmhpd.c b/drivers/pmdomain/qcom/rpmhpd.c
index
078323b85b5648e33dd89e08cf31bdc5ab76d553..e09552a469264f28952fc46c3ab8c125e87310da
100644
--- a/drivers/pmdomain/qcom/rpmhpd.c
+++ b/drivers/pmdomain/qcom/rpmhpd.c
@@ -217,6 +217,24 @@ static struct rpmhpd gmxc = {
.res_name = "gmxc.lvl",
};
+/* Milos RPMH powerdomains */
I can't find any public docs telling us which SoC is Milos (the only
relevant result is Bjorn's email asking you to use that name instead of
SM7635). So for the sake of future generations could you reference both
names in a comment somewhere? Or even the commit message would be enough
tbh.
I don't know the full list of model numbers for Milos. I assume it's
SM7635, SM6650, SM6650P, QCM6690 and QCS6690 based on the info I could
fine, but such info is hard to get. So this is not a definite list that
all those are actually Milos, or that this is the full list of Milos
chipsets.
oof, I see... that complicates things. It sure would be good if this
list was documented in the kernel though imo.
Off-topic here, but maybe it would be a good idea to add some Qualcomm
platform docs to the kernel with a table of all the publicly known names
for each SoC? This would also be really helpful even ignoring codenames
just to know that SM8550 is Snapdragon 8 Gen 2 for example.
So far my source for this has been the postmarketOS wiki, and this
Google Doc, but the latter hasn't been updated for new chips since a
year or so, and is also probably not very complete:
https://docs.google.com/spreadsheets/d/1WrKHLj_oSoiykhSc6xqXAkT3nlD2hq-fzUPSGiq3Kbc/edit?gid=1270863184#gid=1270863184
And I've got some notes locally for a couple that I regularly need.
But I'd love a more central place that isn't specific to postmarketOS
for example. Not sure where though?
kernel docs seem sensible to me? Maybe a wiki on gh/linux-msm?
Regards
Luca
Kind regards,
Casey (she/they)
+static struct rpmhpd *milos_rpmhpds[] = {
+ [RPMHPD_CX] = &cx,
+ [RPMHPD_CX_AO] = &cx_ao,
+ [RPMHPD_EBI] = &ebi,
+ [RPMHPD_GFX] = &gfx,
+ [RPMHPD_LCX] = &lcx,
+ [RPMHPD_LMX] = &lmx,
+ [RPMHPD_MSS] = &mss,
+ [RPMHPD_MX] = &mx,
+ [RPMHPD_MX_AO] = &mx_ao,
+};
+
+static const struct rpmhpd_desc milos_desc = {
+ .rpmhpds = milos_rpmhpds,
+ .num_pds = ARRAY_SIZE(milos_rpmhpds),
+};
+
/* SA8540P RPMH powerdomains */
static struct rpmhpd *sa8540p_rpmhpds[] = {
[SC8280XP_CX] = &cx,
@@ -723,6 +741,7 @@ static const struct rpmhpd_desc qcs615_desc = {
};
static const struct of_device_id rpmhpd_match_table[] = {
+ { .compatible = "qcom,milos-rpmhpd", .data = &milos_desc },
{ .compatible = "qcom,qcs615-rpmhpd", .data = &qcs615_desc },
{ .compatible = "qcom,qcs8300-rpmhpd", .data = &qcs8300_desc },
{ .compatible = "qcom,qdu1000-rpmhpd", .data = &qdu1000_desc },
