Merge tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc drivers updates from Greg KH:
 "Here is the "big" set of char/misc and other driver subsystems for
  6.4-rc1.

  It's pretty big, but due to the removal of pcmcia drivers, almost
  breaks even for number of lines added vs. removed, a nice change.

  Included in here are:

   - removal of unused PCMCIA drivers (finally!)

   - Interconnect driver updates and additions

   - Lots of IIO driver updates and additions

   - MHI driver updates

   - Coresight driver updates

   - NVMEM driver updates, which required some OF updates

   - W1 driver updates and a new maintainer to manage the subsystem

   - FPGA driver updates

   - New driver subsystem, CDX, for AMD systems

   - lots of other small driver updates and additions

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (196 commits)
  mcb-lpc: Reallocate memory region to avoid memory overlapping
  mcb-pci: Reallocate memory region to avoid memory overlapping
  mcb: Return actual parsed size when reading chameleon table
  kernel/configs: Drop Android config fragments
  virt: acrn: Replace obsolete memalign() with posix_memalign()
  spmi: Add a check for remove callback when removing a SPMI driver
  spmi: fix W=1 kernel-doc warnings
  spmi: mtk-pmif: Drop of_match_ptr for ID table
  spmi: pmic-arb: Convert to platform remove callback returning void
  spmi: mtk-pmif: Convert to platform remove callback returning void
  spmi: hisi-spmi-controller: Convert to platform remove callback returning void
  w1: gpio: remove unnecessary ENOMEM messages
  w1: omap-hdq: remove unnecessary ENOMEM messages
  w1: omap-hdq: add SPDX tag
  w1: omap-hdq: allow compile testing
  w1: matrox: remove unnecessary ENOMEM messages
  w1: matrox: use inline over __inline__
  w1: matrox: switch from asm to linux header
  w1: ds2482: do not use assignment in if condition
  w1: ds2482: drop unnecessary header
  ...

1 files changed, 61 insertions, 0 deletions

diff --git a/drivers/cdx/controller/mcdi_functions.h b/drivers/cdx/controller/mcdi_functions.h
new file mode 100644
index 000000000000..7440ace5539a
--- /dev/null
+++ b/drivers/cdx/controller/mcdi_functions.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Header file for MCDI FW interaction for CDX bus.
+ *
+ * Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
+ */
+
+#ifndef CDX_MCDI_FUNCTIONS_H
+#define CDX_MCDI_FUNCTIONS_H
+
+#include "mcdi.h"
+#include "../cdx.h"
+
+/**
+ * cdx_mcdi_get_num_buses - Get the total number of buses on
+ *	the controller.
+ * @cdx: pointer to MCDI interface.
+ *
+ * Return: total number of buses available on the controller,
+ *	<0 on failure
+ */
+int cdx_mcdi_get_num_buses(struct cdx_mcdi *cdx);
+
+/**
+ * cdx_mcdi_get_num_devs - Get the total number of devices on
+ *	a particular bus of the controller.
+ * @cdx: pointer to MCDI interface.
+ * @bus_num: Bus number.
+ *
+ * Return: total number of devices available on the bus, <0 on failure
+ */
+int cdx_mcdi_get_num_devs(struct cdx_mcdi *cdx, int bus_num);
+
+/**
+ * cdx_mcdi_get_dev_config - Get configuration for a particular
+ *	bus_num:dev_num
+ * @cdx: pointer to MCDI interface.
+ * @bus_num: Bus number.
+ * @dev_num: Device number.
+ * @dev_params: Pointer to cdx_dev_params, this is populated by this
+ *	device with the configuration corresponding to the provided
+ *	bus_num:dev_num.
+ *
+ * Return: 0 total number of devices available on the bus, <0 on failure
+ */
+int cdx_mcdi_get_dev_config(struct cdx_mcdi *cdx,
+			    u8 bus_num, u8 dev_num,
+			    struct cdx_dev_params *dev_params);
+
+/**
+ * cdx_mcdi_reset_device - Reset cdx device represented by bus_num:dev_num
+ * @cdx: pointer to MCDI interface.
+ * @bus_num: Bus number.
+ * @dev_num: Device number.
+ *
+ * Return: 0 on success, <0 on failure
+ */
+int cdx_mcdi_reset_device(struct cdx_mcdi *cdx,
+			  u8 bus_num, u8 dev_num);
+
+#endif /* CDX_MCDI_FUNCTIONS_H */