kernel/drivers/cdx, branch linux-6.8.y

cdx: Unlock on error path in rescan_store()

2024-01-04T16:01:14Z

We added locking to this function but these two error paths were accidentally overlooked. Fixes: f0af81683466 ("cdx: Introduce lock to protect controller ops") Signed-off-by: Dan Carpenter Acked-by: Abhijit Gangurde Link: https://lore.kernel.org/r/a7994b47-6f78-4e2c-a30a-ee5995d428ec@moroto.mountain Signed-off-by: Greg Kroah-Hartman

cdx: call of_node_put() on error path

2024-01-04T16:01:14Z

Add a missing call to of_node_put(np) on error. There was a second error path where "np" was NULL, but that situation is impossible. The for_each_compatible_node() loop iterator is always non-NULL. Just deleted that error path. Fixes: 54b406e10f03 ("cdx: Remove cdx controller list from cdx bus system") Signed-off-by: Dan Carpenter Acked-by: Abhijit Gangurde Link: https://lore.kernel.org/r/2e66efc4-a13a-4774-8c9d-763455fe4834@moroto.mountain Signed-off-by: Greg Kroah-Hartman

cdx: Create resource debugfs file for cdx device

2024-01-04T16:01:13Z

resource debugfs file contains host addresses of CDX device resources. Each line of the resource file describe type of resource, a region with start-end and flag fields. Signed-off-by: Abhijit Gangurde Link: https://lore.kernel.org/r/20231222064627.2828960-2-abhijit.gangurde@amd.com Signed-off-by: Greg Kroah-Hartman

cdx: create sysfs bin files for cdx resources

2024-01-04T16:01:13Z

Resource binary file contains the content of the memory regions. These resources devices can be used to mmap the MMIO regions in the user-space. Co-developed-by: Puneet Gupta Signed-off-by: Puneet Gupta Signed-off-by: Abhijit Gangurde Link: https://lore.kernel.org/r/20231222064627.2828960-1-abhijit.gangurde@amd.com Signed-off-by: Greg Kroah-Hartman

cdx: Explicitly include correct DT includes, again

2023-12-15T16:27:04Z

The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it was merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. CDX was fixed once, but commit ("cdx: Remove cdx controller list from cdx bus system") added another occurrence. Fixes: 54b406e10f03 ("cdx: Remove cdx controller list from cdx bus system") Signed-off-by: Rob Herring Acked-by: Nikhil Agarwal Link: https://lore.kernel.org/r/20231207163128.2707993-2-robh@kernel.org Signed-off-by: Greg Kroah-Hartman

Merge tag 'char-misc-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2023-11-04T00:51:08Z

Pull char/misc updates from Greg KH: "Here is the big set of char/misc and other small driver subsystem changes for 6.7-rc1. Included in here are: - IIO subsystem driver updates and additions (largest part of this pull request) - FPGA subsystem driver updates - Counter subsystem driver updates - ICC subsystem driver updates - extcon subsystem driver updates - mei driver updates and additions - nvmem subsystem driver updates and additions - comedi subsystem dependency fixes - parport driver fixups - cdx subsystem driver and core updates - splice support for /dev/zero and /dev/full - other smaller driver cleanups All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (326 commits) cdx: add sysfs for subsystem, class and revision cdx: add sysfs for bus reset cdx: add support for bus enable and disable cdx: Register cdx bus as a device on cdx subsystem cdx: Create symbol namespaces for cdx subsystem cdx: Introduce lock to protect controller ops cdx: Remove cdx controller list from cdx bus system dts: ti: k3-am625-beagleplay: Add beaglecc1352 greybus: Add BeaglePlay Linux Driver dt-bindings: net: Add ti,cc1352p7 dt-bindings: eeprom: at24: allow NVMEM cells based on old syntax dt-bindings: nvmem: SID: allow NVMEM cells based on old syntax Revert "nvmem: add new config option" MAINTAINERS: coresight: Add missing Coresight files misc: pci_endpoint_test: Add deviceID for J721S2 PCIe EP device support firmware: xilinx: Move EXPORT_SYMBOL_GPL next to zynqmp_pm_feature definition uacce: make uacce_class constant ocxl: make ocxl_class constant cxl: make cxl_class constant misc: phantom: make phantom_class constant ...

cdx: add sysfs for subsystem, class and revision

2023-10-27T11:23:24Z

CDX controller provides subsystem vendor, subsystem device, class and revision info of the device along with vendor and device ID in native endian format. CDX Bus system uses this information to bind the cdx device to the cdx device driver. Co-developed-by: Puneet Gupta Signed-off-by: Puneet Gupta Co-developed-by: Nipun Gupta Signed-off-by: Nipun Gupta Signed-off-by: Abhijit Gangurde Reviewed-by: Pieter Jansen van Vuuren Tested-by: Nikhil Agarwal Link: https://lore.kernel.org/r/20231017160505.10640-8-abhijit.gangurde@amd.com Signed-off-by: Greg Kroah-Hartman

cdx: add sysfs for bus reset

2023-10-27T11:23:24Z

Add sysfs interface reset to reset all the devices on the CDX bus. Signed-off-by: Abhijit Gangurde Link: https://lore.kernel.org/r/20231017160505.10640-7-abhijit.gangurde@amd.com Signed-off-by: Greg Kroah-Hartman

cdx: add support for bus enable and disable

2023-10-27T11:23:24Z

CDX bus needs to be disabled before updating/writing devices in the FPGA. Once the devices are written, the bus shall be rescanned. This change provides sysfs entry to enable/disable the CDX bus. Co-developed-by: Nipun Gupta Signed-off-by: Nipun Gupta Signed-off-by: Abhijit Gangurde Link: https://lore.kernel.org/r/20231017160505.10640-6-abhijit.gangurde@amd.com Signed-off-by: Greg Kroah-Hartman

cdx: Register cdx bus as a device on cdx subsystem

2023-10-27T11:23:24Z

While scanning for CDX devices, register newly discovered bus as a cdx device. CDX device attributes are visible based on device type. Signed-off-by: Abhijit Gangurde Link: https://lore.kernel.org/r/20231017160505.10640-5-abhijit.gangurde@amd.com Signed-off-by: Greg Kroah-Hartman