linux-kernel - [PATCH 00/12] arm64: qcom: autodetect firmware paths

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Message-Id: <20240521-qcom-firmware-name-v1-0-99a6d32b1e5e@linaro.org>
Date: Tue, 21 May 2024 12:45:20 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konrad.dybcio@...aro.org>, 
 Loic Poulain <loic.poulain@...aro.org>, Kalle Valo <kvalo@...nel.org>, 
 Mathieu Poirier <mathieu.poirier@...aro.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
 wcn36xx@...ts.infradead.org, linux-wireless@...r.kernel.org, 
 linux-remoteproc@...r.kernel.org, devicetree@...r.kernel.org, 
 Arnd Bergmann <arnd@...db.de>, 
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Subject: [PATCH 00/12] arm64: qcom: autodetect firmware paths

This is a followup to the discussion during the Linaro Connect. Remove
most of the firmware-name properties from the board DT by using
root node compatible to detect firmware path.

The most obvious change is that the drivers now have to look for the
MBN firmware files by default, so this might break the case of the user
simply mounting vendor's firmware partition to /lib/firmware and
expecting it to work.

Also things are slightly more complex for the platforms like DB845c and
Qualcomm RB5. These platforms have generic SoC firmware in qcom/sdm845
and qcom/sm8250 and also the board-specific firmware at
qcom/sdm845/Thundercomm/DB845C and qcom/sm8250/Thundercomm/RB5
respectively. Making these boards follow up the scheme would require
additional symlinks in the firmware dir.

+Link: qcom/sdm845/Thundercomm/db845c/a630_zap.mbn -> ../../a630_zap.mbn
+Link: qcom/sm8250/Thundercomm/RB5/a650_zap.mbn -> ../../a650_zap.mbn
+Link: qcom/sdm845/Thundercomm/db845c/adsp.mbn -> ../../adsp.mbn
+Link: qcom/sdm845/Thundercomm/db845c/adspr.jsn -> ../../adspr.jsn
+Link: qcom/sdm845/Thundercomm/db845c/adspua.jsn -> ../../adspua.jsn
+Link: qcom/sdm845/Thundercomm/db845c/cdsp.mbn -> ../../cdsp.mbn
+Link: qcom/sdm845/Thundercomm/db845c/cdspr.jsn -> ../../cdspr.jsn
+Link: qcom/sm8250/Thundercomm/RB5/adsp.mbn -> ../../adsp.mbn
+Link: qcom/sm8250/Thundercomm/RB5/adspr.jsn -> ../../adspr.jsn
+Link: qcom/sm8250/Thundercomm/RB5/adspua.jsn -> ../../adspua.jsn
+Link: qcom/sm8250/Thundercomm/RB5/cdsp.mbn -> ../../cdsp.mbn
+Link: qcom/sm8250/Thundercomm/RB5/cdspr.jsn -> ../../cdspr.jsn

Suggested-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
Dmitry Baryshkov (12):
      soc: qcom: add firmware name helper
      wifi: wcn36xx: make use of QCOM_FW_HELPER
      soc: qcom: wcnss_ctrl: make use of QCOM_FW_HELPER
      remoteproc: qcom_q6v5_mss: switch to mbn files by default
      remoteproc: qcom_q6v5_mss: make use of QCOM_FW_HELPER
      remoteproc: qcom_q6v5_pas: switch to mbn files by default
      remoteproc: qcom_q6v5_pas: make use of QCOM_FW_HELPER
      remoteproc: qcom_wcnss: switch to mbn files by default
      remoteproc: qcom_wcnss: make use of QCOM_FW_HELPER
      remoteproc: qcom_wcnss: make use of QCOM_FW_HELPER
      arm64: dts: qcom: apq8016-sbc: drop firmware-name properties
      arm64: dts: qcom: apq8096-db820c: drop firmware-name properties

 arch/arm64/boot/dts/qcom/apq8016-sbc.dts    |  5 +-
 arch/arm64/boot/dts/qcom/apq8096-db820c.dts |  2 -
 drivers/net/wireless/ath/wcn36xx/Kconfig    |  1 +
 drivers/net/wireless/ath/wcn36xx/main.c     |  5 ++
 drivers/remoteproc/Kconfig                  |  3 +
 drivers/remoteproc/qcom_q6v5_mss.c          | 12 +++-
 drivers/remoteproc/qcom_q6v5_pas.c          | 85 +++++++++++++++-------------
 drivers/remoteproc/qcom_wcnss.c             |  8 ++-
 drivers/soc/qcom/Kconfig                    |  6 ++
 drivers/soc/qcom/Makefile                   |  1 +
 drivers/soc/qcom/qcom_fw_helper.c           | 86 +++++++++++++++++++++++++++++
 drivers/soc/qcom/wcnss_ctrl.c               |  9 +++
 include/linux/soc/qcom/fw_helper.h          | 10 ++++
 13 files changed, 187 insertions(+), 46 deletions(-)
---
base-commit: 632483ea8004edfadd035de36e1ab2c7c4f53158
change-id: 20240520-qcom-firmware-name-aeef265a753a

Best regards,
-- 
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>