kernel.git/Documentation/devicetree/bindings/firmware, branch linux-6.4.y

dt-bindings: firmware: qcom,scm: Document that SCM can be dma-coherent

2023-06-22T19:20:12Z

Trogdor devices use firmware backed by TF-A instead of Qualcomm's normal TZ. On TF-A we end up mapping memory as cacheable. Specifically, you can see in Trogdor's TF-A code [1] in qti_sip_mem_assign() that we call qti_mmap_add_dynamic_region() with MT_RO_DATA. This translates down to MT_MEMORY instead of MT_NON_CACHEABLE or MT_DEVICE. Let's allow devices like trogdor to be described properly by allowing "dma-coherent" in the SCM node. Signed-off-by: Douglas Anderson Acked-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20230616081440.v2.1.Ie79b5f0ed45739695c9970df121e11d724909157@changeid Signed-off-by: Bjorn Andersson

Merge tag 'scmi-updates-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/drivers

2023-04-17T15:38:42Z

Arm SCMI updates for v6.4 The main and only new addition this time around is the support for unidirectional mailbox channels. SCMI communicates between the agent and the platform using one bidirectional 'a2p' channel used by the agent to send SCMI commands and synchronously receive the related replies, and an optional 'p2a' unidirectional channel used to asynchronously receive delayed responses and notifications emitted from the platform. In order to support platforms that support only unidirectional mailbox hardware channels, the existing bindings are extended to support the same. Both bidirectional and unidirectional channels support for the SCMI mailbox can coexist. The correct and effective combination of defined 'mboxes' and 'shmem' descriptors determines the type of the mailbox channel. This also contains a fix for the transfers allocation on Rx channel especially when the base protocol doesn't use Rx channel while some of the protocols can have dedicated Rx channels. * tag 'scmi-updates-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: firmware: arm_scmi: Add support for unidirectional mailbox channels dt-bindings: firmware: arm,scmi: Support mailboxes unidirectional channels firmware: arm_scmi: Fix xfers allocation on Rx channel firmware: arm_scmi: Use the bitmap API to allocate bitmaps firmware: arm_scmi: Fix device node validation for mailbox transport firmware: arm_scmi: Fix raw coexistence mode behaviour on failure path firmware: arm_scmi: Remove duplicate include header inclusion firmware: arm_scmi: Return a literal instead of a variable firmware: arm_scmi: Clean up a return statement in scmi_probe Link: https://lore.kernel.org/r/20230417145743.1904318-1-sudeep.holla@arm.com Signed-off-by: Arnd Bergmann

dt-bindings: firmware: document Qualcomm QCM2290 SCM

2023-04-07T18:31:11Z

Add a compatible for Qualcomm QCM2290 SCM and add it to the core clock users list. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Konrad Dybcio Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20230403-topic-rb1_qcm-v2-1-dae06f8830dc@linaro.org

dt-bindings: firmware: arm,scmi: Support mailboxes unidirectional channels

2023-04-05T08:39:17Z

SCMI defines two kinds of communication channels between the agent and the platform: one bidirectional 'a2p' channel used by the agent to send SCMI commands and synchronously receive the related replies, and an optional 'p2a' unidirectional channel used to asynchronously receive delayed responses and notifications emitted from the platform. When configuring an SCMI transport based on mailboxes, the current binding supports only mailboxes providing bidirectional channels: in such a case one mailbox channel can be easily assigned to each SCMI channel as above described. In case, instead, to have to deal with mailboxes providing only distinct unidirectional channels, it becomes necessary to extend the binding in order to be able to bind 2 distinct unidirectional mailbox channels to the same SCMI 'a2p' channel. Bidirectional and unidirectional channels support for the SCMI mailbox transport can coexist by carefully considering the effective combination of defined 'mboxes' and 'shmem' descriptors. Signed-off-by: Cristian Marussi Reviewed-by: Rob Herring Link: https://lore.kernel.org/r/20230404115026.2828149-2-cristian.marussi@arm.com Signed-off-by: Sudeep Holla

dt-bindings: firmware: document Qualcomm SC8180X SCM

2023-04-05T03:23:56Z

Document the compatible for Qualcomm sc8180x SCM. Acked-by: Krzysztof Kozlowski Signed-off-by: Vinod Koul Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20230325122444.249507-2-vkoul@kernel.org

dt-bindings: firmware: qcom,scm: Update QDU1000/QRU1000 compatible

2023-03-16T02:28:50Z

Update compatible for QDU1000 and QRU1000 to include the interconnect these devices have. Signed-off-by: Melody Olvera Acked-by: Krzysztof Kozlowski Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20230306231202.12223-2-quic_molvera@quicinc.com

dt-bindings: firmware: qcom,scm: document IPQ5332 SCM

2023-03-15T23:22:33Z

Document the compatible for IPQ5332 SCM. Acked-by: Krzysztof Kozlowski Signed-off-by: Kathiravan T Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20230307062232.4889-8-quic_kathirav@quicinc.com

dt-bindings: scm: Add compatible for IPQ9574

2023-03-15T23:12:51Z

Add the scm compatible string for IPQ9574 SoC Acked-by: Krzysztof Kozlowski Signed-off-by: Poovendhan Selvaraj Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20230216120012.28357-2-quic_poovendh@quicinc.com

Merge tag 'soc-drivers-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2023-02-27T18:04:49Z

Pull ARM SoC driver updates from Arnd Bergmann: "As usual, there are lots of minor driver changes across SoC platforms from NXP, Amlogic, AMD Zynq, Mediatek, Qualcomm, Apple and Samsung. These usually add support for additional chip variations in existing drivers, but also add features or bugfixes. The SCMI firmware subsystem gains a unified raw userspace interface through debugfs, which can be used for validation purposes. Newly added drivers include: - New power management drivers for StarFive JH7110, Allwinner D1 and Renesas RZ/V2M - A driver for Qualcomm battery and power supply status - A SoC device driver for identifying Nuvoton WPCM450 chips - A regulator coupler driver for Mediatek MT81xxv" * tag 'soc-drivers-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (165 commits) power: supply: Introduce Qualcomm PMIC GLINK power supply soc: apple: rtkit: Do not copy the reg state structure to the stack soc: sunxi: SUN20I_PPU should depend on PM memory: renesas-rpc-if: Remove redundant division of dummy soc: qcom: socinfo: Add IDs for IPQ5332 and its variant dt-bindings: arm: qcom,ids: Add IDs for IPQ5332 and its variant dt-bindings: power: qcom,rpmpd: add RPMH_REGULATOR_LEVEL_LOW_SVS_L1 firmware: qcom_scm: Move qcom_scm.h to include/linux/firmware/qcom/ MAINTAINERS: Update qcom CPR maintainer entry dt-bindings: firmware: document Qualcomm SM8550 SCM dt-bindings: firmware: qcom,scm: add qcom,scm-sa8775p compatible soc: qcom: socinfo: Add Soc IDs for IPQ8064 and variants dt-bindings: arm: qcom,ids: Add Soc IDs for IPQ8064 and variants soc: qcom: socinfo: Add support for new field in revision 17 soc: qcom: smd-rpm: Add IPQ9574 compatible soc: qcom: pmic_glink: remove redundant calculation of svid soc: qcom: stats: Populate all subsystem debugfs files dt-bindings: soc: qcom,rpmh-rsc: Update to allow for generic nodes soc: qcom: pmic_glink: add CONFIG_NET/CONFIG_OF dependencies soc: qcom: pmic_glink: Introduce altmode support ...

Merge tag 'qcom-drivers-for-6.3-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/drivers

2023-02-13T15:22:33Z

More Qualcomm driver updates for 6.3 The qcom_scm.h file is moved into firmware/qcom, to avoid having any Qualcomm-specific files directly in include/linux. Support for PMIC GLINK is introduced, which on newer Qualcomm platforms provides an interface to the firmware implementing battery management and USB Type-C handling. Together with the base driver comes the custom altmode support driver. SMD RPM gains support for IPQ9574, and socinfo is extended with support for revision 17 of the information format and soc_id for IPQ5332 and IPQ8064 are added. The qcom_stats is changes not to fail when not all parts are initialized. * tag 'qcom-drivers-for-6.3-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: soc: qcom: socinfo: Add IDs for IPQ5332 and its variant dt-bindings: arm: qcom,ids: Add IDs for IPQ5332 and its variant dt-bindings: power: qcom,rpmpd: add RPMH_REGULATOR_LEVEL_LOW_SVS_L1 firmware: qcom_scm: Move qcom_scm.h to include/linux/firmware/qcom/ MAINTAINERS: Update qcom CPR maintainer entry dt-bindings: firmware: document Qualcomm SM8550 SCM dt-bindings: firmware: qcom,scm: add qcom,scm-sa8775p compatible soc: qcom: socinfo: Add Soc IDs for IPQ8064 and variants dt-bindings: arm: qcom,ids: Add Soc IDs for IPQ8064 and variants soc: qcom: socinfo: Add support for new field in revision 17 soc: qcom: smd-rpm: Add IPQ9574 compatible soc: qcom: pmic_glink: remove redundant calculation of svid soc: qcom: stats: Populate all subsystem debugfs files dt-bindings: soc: qcom,rpmh-rsc: Update to allow for generic nodes soc: qcom: pmic_glink: add CONFIG_NET/CONFIG_OF dependencies soc: qcom: pmic_glink: Introduce altmode support soc: qcom: pmic_glink: Introduce base PMIC GLINK driver dt-bindings: soc: qcom: Introduce PMIC GLINK binding soc: qcom: dcc: Drop driver for now Link: https://lore.kernel.org/r/20230210182242.2023901-1-andersson@kernel.org Signed-off-by: Arnd Bergmann