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

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
  ...

1 files changed, 49 insertions, 2 deletions

diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index cdf8a2edf0b3..37d7fb15cad7 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -70,9 +70,9 @@ enum mei_dev_state {
 /**
  * enum mei_dev_pxp_mode - MEI PXP mode state
  *
- * @MEI_DEV_PXP_DEFAULT: PCH based device, no initailization required
+ * @MEI_DEV_PXP_DEFAULT: PCH based device, no initialization required
  * @MEI_DEV_PXP_INIT:    device requires initialization, send setup message to firmware
- * @MEI_DEV_PXP_SETUP:   device is in setup stage, waiting for firmware repsonse
+ * @MEI_DEV_PXP_SETUP:   device is in setup stage, waiting for firmware response
  * @MEI_DEV_PXP_READY:   device initialized
  */
 enum mei_dev_pxp_mode {
@@ -82,6 +82,19 @@ enum mei_dev_pxp_mode {
 	MEI_DEV_PXP_READY   = 3,
 };
 
+/**
+ * enum mei_dev_reset_to_pxp - reset to PXP mode performed
+ *
+ * @MEI_DEV_RESET_TO_PXP_DEFAULT: before reset
+ * @MEI_DEV_RESET_TO_PXP_PERFORMED: reset performed
+ * @MEI_DEV_RESET_TO_PXP_DONE: reset processed
+ */
+enum mei_dev_reset_to_pxp {
+	MEI_DEV_RESET_TO_PXP_DEFAULT = 0,
+	MEI_DEV_RESET_TO_PXP_PERFORMED = 1,
+	MEI_DEV_RESET_TO_PXP_DONE = 2,
+};
+
 const char *mei_dev_state_str(int state);
 
 enum mei_file_transaction_states {
@@ -534,6 +547,11 @@ struct mei_dev_timeouts {
  *
  * @dbgfs_dir   : debugfs mei root directory
  *
+ * @saved_fw_status      : saved firmware status
+ * @saved_dev_state      : saved device state
+ * @saved_fw_status_flag : flag indicating that firmware status was saved
+ * @gsc_reset_to_pxp     : state of reset to the PXP mode
+ *
  * @ops:        : hw specific operations
  * @hw          : hw specific data
  */
@@ -630,6 +648,11 @@ struct mei_device {
 	struct dentry *dbgfs_dir;
 #endif /* CONFIG_DEBUG_FS */
 
+	struct mei_fw_status saved_fw_status;
+	enum mei_dev_state saved_dev_state;
+	bool saved_fw_status_flag;
+	enum mei_dev_reset_to_pxp gsc_reset_to_pxp;
+
 	const struct mei_hw_ops *ops;
 	char hw[] __aligned(sizeof(void *));
 };
@@ -874,5 +897,29 @@ static inline ssize_t mei_fw_status_str(struct mei_device *dev,
 	return ret;
 }
 
+/**
+ * kind_is_gsc - checks whether the device is gsc
+ *
+ * @dev: the device structure
+ *
+ * Return: whether the device is gsc
+ */
+static inline bool kind_is_gsc(struct mei_device *dev)
+{
+	/* check kind for NULL because it may be not set, like at the fist call to hw_start */
+	return dev->kind && (strcmp(dev->kind, "gsc") == 0);
+}
 
+/**
+ * kind_is_gscfi - checks whether the device is gscfi
+ *
+ * @dev: the device structure
+ *
+ * Return: whether the device is gscfi
+ */
+static inline bool kind_is_gscfi(struct mei_device *dev)
+{
+	/* check kind for NULL because it may be not set, like at the fist call to hw_start */
+	return dev->kind && (strcmp(dev->kind, "gscfi") == 0);
+}
 #endif