linux-kernel - [PATCH v2 0/2] soc: qcom: pmic_glink: Resolve failures to bring up pmic

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Message-Id: <20241023-pmic-glink-ecancelled-v2-0-ebc268129407@oss.qualcomm.com>
Date: Wed, 23 Oct 2024 17:24:31 +0000
From: Bjorn Andersson <bjorn.andersson@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Chris Lew <quic_clew@...cinc.com>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Johan Hovold <johan@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, Bjorn Andersson <quic_bjorande@...cinc.com>,
        linux-remoteproc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bjorn Andersson <bjorn.andersson@....qualcomm.com>,
        stable@...r.kernel.org, Johan Hovold <johan+linaro@...nel.org>
Subject: [PATCH v2 0/2] soc: qcom: pmic_glink: Resolve failures to bring up
 pmic_glink

With the transition of pd-mapper into the kernel, the timing was altered
such that on some targets the initial rpmsg_send() requests from
pmic_glink clients would be attempted before the firmware had announced
intents, and the firmware reject intent requests.

Fix this

Signed-off-by: Bjorn Andersson <bjorn.andersson@....qualcomm.com>
---
Changes in v2:
- Introduced "intents" and fixed a few spelling mistakes in the commit
  message of patch 1
- Cleaned up log snippet in commit message of patch 2, added battery
  manager log
- Changed the arbitrary 10 second timeout to 5... Ought to be enough for
  anybody.
- Added a small sleep in the send-loop in patch 2, and by that
  refactored the loop completely.
- Link to v1: https://lore.kernel.org/r/20241022-pmic-glink-ecancelled-v1-0-9e26fc74e0a3@oss.qualcomm.com

---
Bjorn Andersson (2):
      rpmsg: glink: Handle rejected intent request better
      soc: qcom: pmic_glink: Handle GLINK intent allocation rejections

 drivers/rpmsg/qcom_glink_native.c | 10 +++++++---
 drivers/soc/qcom/pmic_glink.c     | 25 ++++++++++++++++++++++---
 2 files changed, 29 insertions(+), 6 deletions(-)
---
base-commit: 42f7652d3eb527d03665b09edac47f85fb600924
change-id: 20241022-pmic-glink-ecancelled-d899a9ca0358

Best regards,
-- 
Bjorn Andersson <bjorn.andersson@....qualcomm.com>