linux-kernel - [PATCH V5 0/6] firmware: arm

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Message-ID: <20241030125512.2884761-1-quic_sibis@quicinc.com>
Date: Wed, 30 Oct 2024 18:25:06 +0530
From: Sibi Sankar <quic_sibis@...cinc.com>
To: <sudeep.holla@....com>, <cristian.marussi@....com>, <johan@...nel.org>,
        <ulf.hansson@...aro.org>, <jassisinghbrar@...il.com>,
        <dmitry.baryshkov@...aro.org>
CC: <linux-kernel@...r.kernel.org>, <arm-scmi@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-arm-msm@...r.kernel.org>, <quic_sibis@...cinc.com>,
        <konradybcio@...nel.org>, <linux-pm@...r.kernel.org>,
        <tstrudel@...gle.com>, <rafael@...nel.org>
Subject: [PATCH V5 0/6] firmware: arm_scmi: Misc Fixes

The series addresses the kernel warnings reported by Johan at [1] and are
are required to X1E cpufreq device tree changes to land.

[1] - https://lore.kernel.org/lkml/ZoQjAWse2YxwyRJv@hovoldconsulting.com/

Duplicate levels:
arm-scmi arm-scmi.0.auto: Level 2976000 Power 218062 Latency 30us Ifreq 2976000 Index 10
arm-scmi arm-scmi.0.auto: Level 3206400 Power 264356 Latency 30us Ifreq 3206400 Index 11
arm-scmi arm-scmi.0.auto: Level 3417600 Power 314966 Latency 30us Ifreq 3417600 Index 12
arm-scmi arm-scmi.0.auto: Failed to add opps_by_lvl at 3417600 for NCC - ret:-16
arm-scmi arm-scmi.0.auto: Failed to add opps_by_lvl at 3417600 for NCC - ret:-16
arm-scmi arm-scmi.0.auto: Level 4012800 Power 528848 Latency 30us Ifreq 4012800 Index 15

^^ exist because SCP reports duplicate values for the highest sustainable
freq for perf domains 1 and 2. These are the only freqs that appear as
duplicates and will be fixed with a firmware update. FWIW the warnings
that we are addressing in this series will also get fixed by a firmware
update but they still have to land for devices already out in the wild.

V4:
* Rework debugfs node creation patch [Ulf/Dmitry]
* Reduce report level to dev_info and tag it with FW_BUG [Johan/Dmitry]
* Add cc stable and err logs to patch 1 commit message [Johan]

V3:
* Pick up R-b, T-b from the list.
* Pick up the updated patch from Cristian for skipping opps.
* Update device names only when a name collision occurs [Dmitry/Ulf]
* Drop Johan's T-b from "fix debugfs node creation failure"
* Move scmi_protocol_msg_check to the top [Sudeep]

V2:
* Include the fix for do_xfer timeout
* Include the fix debugfs node creation failure
* Include Cristian's fix for skipping opp duplication

V1:
* add missing MSG_SUPPORTS_FASTCHANNEL definition.

base: next-20241029

Cristian Marussi (1):
  firmware: arm_scmi: Skip opp duplicates

Sibi Sankar (5):
  firmware: arm_scmi: Ensure that the message-id supports fastchannel
  firmware: arm_scmi: Report duplicate opps as firmware bugs
  pmdomain: core: Add GENPD_FLAG_DEV_NAME_FW flag
  pmdomain: arm: Use FLAG_DEV_NAME_FW to ensure unique names
  mailbox: qcom-cpucp: Mark the irq with IRQF_NO_SUSPEND flag

 drivers/firmware/arm_scmi/driver.c      | 72 +++++++++++++------------
 drivers/firmware/arm_scmi/perf.c        | 44 ++++++++++-----
 drivers/firmware/arm_scmi/protocols.h   |  2 +
 drivers/mailbox/qcom-cpucp-mbox.c       |  2 +-
 drivers/pmdomain/arm/scmi_perf_domain.c |  3 +-
 drivers/pmdomain/core.c                 | 49 +++++++++++------
 include/linux/pm_domain.h               |  6 +++
 7 files changed, 116 insertions(+), 62 deletions(-)

-- 
2.34.1