On IPQ platforms, to collect the crashdump, we need to just modify the DLOAD bit in the TCSR register. Current infrastructure, overwrites the entire regiter value when enabling the crashdump feature, which leads to crashdump not gets collected. This series introduce the qcom_scm_io_update_field API to achieve the same. Intially this approach is posted by Poovendhan[1], later Mukesh integrated this patch in his minidump support series[2]. Based on the current feedback on the minidump series, seems it will take sometime to get into a good shape, in the meantime these patches doesn't have any dependency with the minidump series. As discussed with the Mukesh[3], posting these 3 patches to enable the crashdump on IPQ chipsets. Since the current version of minidump series is V4, I'm posting this as a V5. Please let me know if this should be V1. [1] https://lore.kernel.org/linux-arm-msm/20230113160012.14893-4-quic_poovendh@xxxxxxxxxxx/ [2] https://lore.kernel.org/linux-arm-msm/1676990381-18184-3-git-send-email-quic_mojha@xxxxxxxxxxx/ [3] https://lore.kernel.org/linux-arm-msm/d77f5601-2b08-a7c7-1400-7ab68b8add3a@xxxxxxxxxxx/ Mukesh Ojha (3): firmware: qcom_scm: provide a read-modify-write function pinctrl: qcom: Use qcom_scm_io_update_field() firmware: scm: Modify only the download bits in TCSR register drivers/firmware/qcom_scm.c | 26 ++++++++++++++++++++++++-- drivers/pinctrl/qcom/pinctrl-msm.c | 12 +++++------- include/linux/firmware/qcom/qcom_scm.h | 2 ++ 3 files changed, 31 insertions(+), 9 deletions(-) -- 2.34.1
