Merge tag 'rproc-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux

Pull remoteproc updates from Bjorn Andersson:
 "In the remoteproc core, it's now possible to mark the sysfs attributes
  read only on a per-instance basis, which is then used by the TI wkup
  M3 driver.

  Also, the rproc_shutdown() interface propagates errors to the caller
  and an array underflow is fixed in the debugfs interface. The
  rproc_da_to_va() API is moved to the public API to allow e.g. child
  rpmsg devices to acquire pointers to memory shared with the remote
  processor.

  The TI K3 R5F and DSP drivers gains support for attaching to instances
  already started by the bootloader, aka IPC-only mode.

  The Mediatek remoteproc driver gains support for the MT8186 SCP. The
  driver's probe function is reordered and moved to use the devres
  version of rproc_alloc() to save a few gotos. The driver's probe
  function is also transitioned to use dev_err_probe() to provide better
  debug support.

  Support for the Qualcomm SC7280 Wireless Subsystem (WPSS) is
  introduced. The Hexagon based remoteproc drivers gains support for
  voting for interconnect bandwidth during launch of the remote
  processor. The modem subsystem (MSS) driver gains support for probing
  the BAM-DMUX driver, which provides the network interface towards the
  modem on a set of older Qualcomm platforms. In addition a number a bug
  fixes are introduces in the Qualcomm drivers.

  Lastly Qualcomm ADSP DeviceTree binding is converted to YAML format,
  to allow validation of DeviceTree source files"

* tag 'rproc-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux: (22 commits)
  remoteproc: qcom_q6v5_mss: Create platform device for BAM-DMUX
  remoteproc: qcom: q6v5_wpss: Add support for sc7280 WPSS
  dt-bindings: remoteproc: qcom: Add SC7280 WPSS support
  dt-bindings: remoteproc: qcom: adsp: Convert binding to YAML
  remoteproc: k3-dsp: Add support for IPC-only mode for all K3 DSPs
  remoteproc: k3-dsp: Refactor mbox request code in start
  remoteproc: k3-r5: Add support for IPC-only mode for all R5Fs
  remoteproc: k3-r5: Refactor mbox request code in start
  remoteproc: Change rproc_shutdown() to return a status
  remoteproc: qcom: q6v5: Add interconnect path proxy vote
  remoteproc: mediatek: Support mt8186 scp
  dt-bindings: remoteproc: mediatek: Add binding for mt8186 scp
  remoteproc: qcom_q6v5_mss: Fix some leaks in q6v5_alloc_memory_region
  remoteproc: qcom_wcnss: Add missing of_node_put() in wcnss_alloc_memory_region
  remoteproc: qcom: Fix missing of_node_put in adsp_alloc_memory_region
  remoteproc: move rproc_da_to_va declaration to remoteproc.h
  remoteproc: wkup_m3: Set sysfs_read_only flag
  remoteproc: Introduce sysfs_read_only flag
  remoteproc: Fix count check in rproc_coredump_write()
  remoteproc: mtk_scp: Use dev_err_probe() where possible
  ...

1 files changed, 4 insertions, 1 deletions

diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
index e0600e1e5c17..7c943f0a2fc4 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h
@@ -523,6 +523,7 @@ struct rproc_dump_segment {
  * @table_sz: size of @cached_table
  * @has_iommu: flag to indicate if remote processor is behind an MMU
  * @auto_boot: flag to indicate if remote processor should be auto-started
+ * @sysfs_read_only: flag to make remoteproc sysfs files read only
  * @dump_segments: list of segments in the firmware
  * @nb_vdev: number of vdev currently handled by rproc
  * @elf_class: firmware ELF class
@@ -562,6 +563,7 @@ struct rproc {
 	size_t table_sz;
 	bool has_iommu;
 	bool auto_boot;
+	bool sysfs_read_only;
 	struct list_head dump_segments;
 	int nb_vdev;
 	u8 elf_class;
@@ -669,10 +671,11 @@ rproc_of_resm_mem_entry_init(struct device *dev, u32 of_resm_idx, size_t len,
 			     u32 da, const char *name, ...);
 
 int rproc_boot(struct rproc *rproc);
-void rproc_shutdown(struct rproc *rproc);
+int rproc_shutdown(struct rproc *rproc);
 int rproc_detach(struct rproc *rproc);
 int rproc_set_firmware(struct rproc *rproc, const char *fw_name);
 void rproc_report_crash(struct rproc *rproc, enum rproc_crash_type type);
+void *rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem);
 void rproc_coredump_using_sections(struct rproc *rproc);
 int rproc_coredump_add_segment(struct rproc *rproc, dma_addr_t da, size_t size);
 int rproc_coredump_add_custom_segment(struct rproc *rproc,