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

Pull ARM SoC driver updates from Arnd Bergmann:
 "As usual, the drivers/tee and drivers/reset subsystems get merged
  here, with the expected set of smaller updates and some new hardware
  support. The tee subsystem now supports device drivers to be attached
  to a tee, the first example here is a random number driver with its
  implementation in the secure world.

  Three new power domain drivers get added for specific chip families:
   - Broadcom BCM283x chips (used in Raspberry Pi)
   - Qualcomm Snapdragon phone chips
   - Xilinx ZynqMP FPGA SoCs

  One new driver is added to talk to the BPMP firmware on NVIDIA
  Tegra210

  Existing drivers are extended for new SoC variants from NXP, NVIDIA,
  Amlogic and Qualcomm"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (113 commits)
  tee: optee: update optee_msg.h and optee_smc.h to dual license
  tee: add cancellation support to client interface
  dpaa2-eth: configure the cache stashing amount on a queue
  soc: fsl: dpio: configure cache stashing destination
  soc: fsl: dpio: enable frame data cache stashing per software portal
  soc: fsl: guts: make fsl_guts_get_svr() static
  hwrng: make symbol 'optee_rng_id_table' static
  tee: optee: Fix unsigned comparison with less than zero
  hwrng: Fix unsigned comparison with less than zero
  tee: fix possible error pointer ctx dereferencing
  hwrng: optee: Initialize some structs using memset instead of braces
  tee: optee: Initialize some structs using memset instead of braces
  soc: fsl: dpio: fix memory leak of a struct qbman on error exit path
  clk: tegra: dfll: Make symbol 'tegra210_cpu_cvb_tables' static
  soc: qcom: llcc-slice: Fix typos
  qcom: soc: llcc-slice: Consolidate some code
  qcom: soc: llcc-slice: Clear the global drv_data pointer on error
  drivers: soc: xilinx: Add ZynqMP power domain driver
  firmware: xilinx: Add APIs to control node status/power
  dt-bindings: power: Add ZynqMP power domain bindings
  ...

1 files changed, 49 insertions, 1 deletions

diff --git a/include/linux/tee_drv.h b/include/linux/tee_drv.h
index 6cfe05893a76..4a49f80e7f71 100644
--- a/include/linux/tee_drv.h
+++ b/include/linux/tee_drv.h
@@ -15,11 +15,14 @@
 #ifndef __TEE_DRV_H
 #define __TEE_DRV_H
 
-#include <linux/types.h>
+#include <linux/device.h>
 #include <linux/idr.h>
 #include <linux/kref.h>
 #include <linux/list.h>
+#include <linux/mod_devicetable.h>
 #include <linux/tee.h>
+#include <linux/types.h>
+#include <linux/uuid.h>
 
 /*
  * The file describes the API provided by the generic TEE driver to the
@@ -47,6 +50,11 @@ struct tee_shm_pool;
  * @releasing:  flag that indicates if context is being released right now.
  *		It is needed to break circular dependency on context during
  *              shared memory release.
+ * @supp_nowait: flag that indicates that requests in this context should not
+ *              wait for tee-supplicant daemon to be started if not present
+ *              and just return with an error code. It is needed for requests
+ *              that arises from TEE based kernel drivers that should be
+ *              non-blocking in nature.
  */
 struct tee_context {
 	struct tee_device *teedev;
@@ -54,6 +62,7 @@ struct tee_context {
 	void *data;
 	struct kref refcount;
 	bool releasing;
+	bool supp_nowait;
 };
 
 struct tee_param_memref {
@@ -526,6 +535,18 @@ int tee_client_invoke_func(struct tee_context *ctx,
 			   struct tee_ioctl_invoke_arg *arg,
 			   struct tee_param *param);
 
+/**
+ * tee_client_cancel_req() - Request cancellation of the previous open-session
+ * or invoke-command operations in a Trusted Application
+ * @ctx:       TEE Context
+ * @arg:       Cancellation arguments, see description of
+ *             struct tee_ioctl_cancel_arg
+ *
+ * Returns < 0 on error else 0 if the cancellation was successfully requested.
+ */
+int tee_client_cancel_req(struct tee_context *ctx,
+			  struct tee_ioctl_cancel_arg *arg);
+
 static inline bool tee_param_is_memref(struct tee_param *param)
 {
 	switch (param->attr & TEE_IOCTL_PARAM_ATTR_TYPE_MASK) {
@@ -538,4 +559,31 @@ static inline bool tee_param_is_memref(struct tee_param *param)
 	}
 }
 
+extern struct bus_type tee_bus_type;
+
+/**
+ * struct tee_client_device - tee based device
+ * @id:			device identifier
+ * @dev:		device structure
+ */
+struct tee_client_device {
+	struct tee_client_device_id id;
+	struct device dev;
+};
+
+#define to_tee_client_device(d) container_of(d, struct tee_client_device, dev)
+
+/**
+ * struct tee_client_driver - tee client driver
+ * @id_table:		device id table supported by this driver
+ * @driver:		driver structure
+ */
+struct tee_client_driver {
+	const struct tee_client_device_id *id_table;
+	struct device_driver driver;
+};
+
+#define to_tee_client_driver(d) \
+		container_of(d, struct tee_client_driver, driver)
+
 #endif /*__TEE_DRV_H*/