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
  ...

15 files changed, 503 insertions, 70 deletions

diff --git a/include/linux/alcor_pci.h b/include/linux/alcor_pci.h
index 8274ed525e9f..c4a0b23846d8 100644
--- a/include/linux/alcor_pci.h
+++ b/include/linux/alcor_pci.h
@@ -268,13 +268,6 @@ struct alcor_pci_priv {
 	unsigned long id; /* idr id */
 
 	struct alcor_dev_cfg	*cfg;
-
-	/* PCI ASPM related vars */
-	int pdev_cap_off;
-	u8  pdev_aspm_cap;
-	int parent_cap_off;
-	u8  parent_aspm_cap;
-	u8 ext_config_dev_aspm;
 };
 
 void alcor_write8(struct alcor_pci_priv *priv, u8 val, unsigned int addr);
diff --git a/include/linux/cdx/cdx_bus.h b/include/linux/cdx/cdx_bus.h
new file mode 100644
index 000000000000..35ef41d8a61a
--- /dev/null
+++ b/include/linux/cdx/cdx_bus.h
@@ -0,0 +1,174 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * CDX bus public interface
+ *
+ * Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
+ *
+ */
+
+#ifndef _CDX_BUS_H_
+#define _CDX_BUS_H_
+
+#include <linux/device.h>
+#include <linux/list.h>
+#include <linux/mod_devicetable.h>
+
+#define MAX_CDX_DEV_RESOURCES	4
+#define CDX_ANY_ID (0xFFFF)
+#define CDX_CONTROLLER_ID_SHIFT 4
+#define CDX_BUS_NUM_MASK 0xF
+
+/* Forward declaration for CDX controller */
+struct cdx_controller;
+
+enum {
+	CDX_DEV_RESET_CONF,
+};
+
+struct cdx_device_config {
+	u8 type;
+};
+
+typedef int (*cdx_scan_cb)(struct cdx_controller *cdx);
+
+typedef int (*cdx_dev_configure_cb)(struct cdx_controller *cdx,
+				    u8 bus_num, u8 dev_num,
+				    struct cdx_device_config *dev_config);
+
+/**
+ * CDX_DEVICE_DRIVER_OVERRIDE - macro used to describe a CDX device with
+ *                              override_only flags.
+ * @vend: the 16 bit CDX Vendor ID
+ * @dev: the 16 bit CDX Device ID
+ * @driver_override: the 32 bit CDX Device override_only
+ *
+ * This macro is used to create a struct cdx_device_id that matches only a
+ * driver_override device.
+ */
+#define CDX_DEVICE_DRIVER_OVERRIDE(vend, dev, driver_override) \
+	.vendor = (vend), .device = (dev), .override_only = (driver_override)
+
+/**
+ * struct cdx_ops - Callbacks supported by CDX controller.
+ * @scan: scan the devices on the controller
+ * @dev_configure: configuration like reset, master_enable,
+ *		   msi_config etc for a CDX device
+ */
+struct cdx_ops {
+	cdx_scan_cb scan;
+	cdx_dev_configure_cb dev_configure;
+};
+
+/**
+ * struct cdx_controller: CDX controller object
+ * @dev: Linux device associated with the CDX controller.
+ * @priv: private data
+ * @id: Controller ID
+ * @ops: CDX controller ops
+ */
+struct cdx_controller {
+	struct device *dev;
+	void *priv;
+	u32 id;
+	struct cdx_ops *ops;
+};
+
+/**
+ * struct cdx_device - CDX device object
+ * @dev: Linux driver model device object
+ * @cdx: CDX controller associated with the device
+ * @vendor: Vendor ID for CDX device
+ * @device: Device ID for CDX device
+ * @bus_num: Bus number for this CDX device
+ * @dev_num: Device number for this device
+ * @res: array of MMIO region entries
+ * @res_attr: resource binary attribute
+ * @res_count: number of valid MMIO regions
+ * @dma_mask: Default DMA mask
+ * @flags: CDX device flags
+ * @req_id: Requestor ID associated with CDX device
+ * @driver_override: driver name to force a match; do not set directly,
+ *                   because core frees it; use driver_set_override() to
+ *                   set or clear it.
+ */
+struct cdx_device {
+	struct device dev;
+	struct cdx_controller *cdx;
+	u16 vendor;
+	u16 device;
+	u8 bus_num;
+	u8 dev_num;
+	struct resource res[MAX_CDX_DEV_RESOURCES];
+	u8 res_count;
+	u64 dma_mask;
+	u16 flags;
+	u32 req_id;
+	const char *driver_override;
+};
+
+#define to_cdx_device(_dev) \
+	container_of(_dev, struct cdx_device, dev)
+
+/**
+ * struct cdx_driver - CDX device driver
+ * @driver: Generic device driver
+ * @match_id_table: table of supported device matching Ids
+ * @probe: Function called when a device is added
+ * @remove: Function called when a device is removed
+ * @shutdown: Function called at shutdown time to quiesce the device
+ * @reset_prepare: Function called before is reset to notify driver
+ * @reset_done: Function called after reset is complete to notify driver
+ * @driver_managed_dma: Device driver doesn't use kernel DMA API for DMA.
+ *		For most device drivers, no need to care about this flag
+ *		as long as all DMAs are handled through the kernel DMA API.
+ *		For some special ones, for example VFIO drivers, they know
+ *		how to manage the DMA themselves and set this flag so that
+ *		the IOMMU layer will allow them to setup and manage their
+ *		own I/O address space.
+ */
+struct cdx_driver {
+	struct device_driver driver;
+	const struct cdx_device_id *match_id_table;
+	int (*probe)(struct cdx_device *dev);
+	int (*remove)(struct cdx_device *dev);
+	void (*shutdown)(struct cdx_device *dev);
+	void (*reset_prepare)(struct cdx_device *dev);
+	void (*reset_done)(struct cdx_device *dev);
+	bool driver_managed_dma;
+};
+
+#define to_cdx_driver(_drv) \
+	container_of(_drv, struct cdx_driver, driver)
+
+/* Macro to avoid include chaining to get THIS_MODULE */
+#define cdx_driver_register(drv) \
+	__cdx_driver_register(drv, THIS_MODULE)
+
+/**
+ * __cdx_driver_register - registers a CDX device driver
+ * @cdx_driver: CDX driver to register
+ * @owner: module owner
+ *
+ * Return: -errno on failure, 0 on success.
+ */
+int __must_check __cdx_driver_register(struct cdx_driver *cdx_driver,
+				       struct module *owner);
+
+/**
+ * cdx_driver_unregister - unregisters a device driver from the
+ * CDX bus.
+ * @cdx_driver: CDX driver to register
+ */
+void cdx_driver_unregister(struct cdx_driver *cdx_driver);
+
+extern struct bus_type cdx_bus_type;
+
+/**
+ * cdx_dev_reset - Reset CDX device
+ * @dev: device pointer
+ *
+ * Return: 0 for success, -errno on failure
+ */
+int cdx_dev_reset(struct device *dev);
+
+#endif /* _CDX_BUS_H_ */
diff --git a/include/linux/cm4000_cs.h b/include/linux/cm4000_cs.h
deleted file mode 100644
index ea4958e07a14..000000000000
--- a/include/linux/cm4000_cs.h
+++ /dev/null
@@ -1,11 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef	_CM4000_H_
-#define	_CM4000_H_
-
-#include <uapi/linux/cm4000_cs.h>
-
-
-#define	DEVICE_NAME		"cmm"
-#define	MODULE_NAME		"cm4000_cs"
-
-#endif	/* _CM4000_H_ */
diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h
index 0e4c70987e6a..f5da51677069 100644
--- a/include/linux/firmware/xlnx-zynqmp.h
+++ b/include/linux/firmware/xlnx-zynqmp.h
@@ -71,6 +71,10 @@
 #define XILINX_ZYNQMP_PM_FPGA_FULL	0x0U
 #define XILINX_ZYNQMP_PM_FPGA_PARTIAL	BIT(0)
 
+/* FPGA Status Reg */
+#define XILINX_ZYNQMP_PM_FPGA_CONFIG_STAT_OFFSET	7U
+#define XILINX_ZYNQMP_PM_FPGA_READ_CONFIG_REG		0U
+
 /*
  * Node IDs for the Error Events.
  */
@@ -124,6 +128,7 @@ enum pm_api_id {
 	PM_CLOCK_GETRATE = 42,
 	PM_CLOCK_SETPARENT = 43,
 	PM_CLOCK_GETPARENT = 44,
+	PM_FPGA_READ = 46,
 	PM_SECURE_AES = 47,
 	PM_FEATURE_CHECK = 63,
 };
@@ -519,6 +524,7 @@ int zynqmp_pm_aes_engine(const u64 address, u32 *out);
 int zynqmp_pm_sha_hash(const u64 address, const u32 size, const u32 flags);
 int zynqmp_pm_fpga_load(const u64 address, const u32 size, const u32 flags);
 int zynqmp_pm_fpga_get_status(u32 *value);
+int zynqmp_pm_fpga_get_config_status(u32 *value);
 int zynqmp_pm_write_ggs(u32 index, u32 value);
 int zynqmp_pm_read_ggs(u32 index, u32 *value);
 int zynqmp_pm_write_pggs(u32 index, u32 value);
@@ -725,6 +731,11 @@ static inline int zynqmp_pm_fpga_get_status(u32 *value)
 	return -ENODEV;
 }
 
+static inline int zynqmp_pm_fpga_get_config_status(u32 *value)
+{
+	return -ENODEV;
+}
+
 static inline int zynqmp_pm_write_ggs(u32 index, u32 value)
 {
 	return -ENODEV;
diff --git a/include/linux/iio/iio-gts-helper.h b/include/linux/iio/iio-gts-helper.h
new file mode 100644
index 000000000000..dd64e544a3da
--- /dev/null
+++ b/include/linux/iio/iio-gts-helper.h
@@ -0,0 +1,206 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* gain-time-scale conversion helpers for IIO light sensors
+ *
+ * Copyright (c) 2023 Matti Vaittinen <mazziesaccount@gmail.com>
+ */
+
+#ifndef __IIO_GTS_HELPER__
+#define __IIO_GTS_HELPER__
+
+#include <linux/types.h>
+
+struct device;
+
+/**
+ * struct iio_gain_sel_pair - gain - selector values
+ *
+ * In many cases devices like light sensors allow setting signal amplification
+ * (gain) using a register interface. This structure describes amplification
+ * and corresponding selector (register value)
+ *
+ * @gain:	Gain (multiplication) value. Gain must be positive, negative
+ *		values are reserved for error handling.
+ * @sel:	Selector (usually register value) used to indicate this gain.
+ *		NOTE: Only selectors >= 0 supported.
+ */
+struct iio_gain_sel_pair {
+	int gain;
+	int sel;
+};
+
+/**
+ * struct iio_itime_sel_mul - integration time description
+ *
+ * In many cases devices like light sensors allow setting the duration of
+ * collecting data. Typically this duration has also an impact to the magnitude
+ * of measured values (gain). This structure describes the relation of
+ * integration time and amplification as well as corresponding selector
+ * (register value).
+ *
+ * An example could be a sensor allowing 50, 100, 200 and 400 mS times. The
+ * respective multiplication values could be 50 mS => 1, 100 mS => 2,
+ * 200 mS => 4 and 400 mS => 8 assuming the impact of integration time would be
+ * linear in a way that when collecting data for 50 mS caused value X, doubling
+ * the data collection time caused value 2X etc.
+ *
+ * @time_us:	Integration time in microseconds. Time values must be positive,
+ *		negative values are reserved for error handling.
+ * @sel:	Selector (usually register value) used to indicate this time
+ *		NOTE: Only selectors >= 0 supported.
+ * @mul:	Multiplication to the values caused by this time.
+ *		NOTE: Only multipliers > 0 supported.
+ */
+struct iio_itime_sel_mul {
+	int time_us;
+	int sel;
+	int mul;
+};
+
+struct iio_gts {
+	u64 max_scale;
+	const struct iio_gain_sel_pair *hwgain_table;
+	int num_hwgain;
+	const struct iio_itime_sel_mul *itime_table;
+	int num_itime;
+	int **per_time_avail_scale_tables;
+	int *avail_all_scales_table;
+	int num_avail_all_scales;
+	int *avail_time_tables;
+	int num_avail_time_tables;
+};
+
+#define GAIN_SCALE_GAIN(_gain, _sel)			\
+{							\
+	.gain = (_gain),				\
+	.sel = (_sel),					\
+}
+
+#define GAIN_SCALE_ITIME_US(_itime, _sel, _mul)		\
+{							\
+	.time_us = (_itime),				\
+	.sel = (_sel),					\
+	.mul = (_mul),					\
+}
+
+static inline const struct iio_itime_sel_mul *
+iio_gts_find_itime_by_time(struct iio_gts *gts, int time)
+{
+	int i;
+
+	if (!gts->num_itime)
+		return NULL;
+
+	for (i = 0; i < gts->num_itime; i++)
+		if (gts->itime_table[i].time_us == time)
+			return &gts->itime_table[i];
+
+	return NULL;
+}
+
+static inline const struct iio_itime_sel_mul *
+iio_gts_find_itime_by_sel(struct iio_gts *gts, int sel)
+{
+	int i;
+
+	for (i = 0; i < gts->num_itime; i++)
+		if (gts->itime_table[i].sel == sel)
+			return &gts->itime_table[i];
+
+	return NULL;
+}
+
+int devm_iio_init_iio_gts(struct device *dev, int max_scale_int, int max_scale_nano,
+			  const struct iio_gain_sel_pair *gain_tbl, int num_gain,
+			  const struct iio_itime_sel_mul *tim_tbl, int num_times,
+			  struct iio_gts *gts);
+/**
+ * iio_gts_find_int_time_by_sel - find integration time matching a selector
+ * @gts:	Gain time scale descriptor
+ * @sel:	selector for which matching integration time is searched for
+ *
+ * Return:	integration time matching given selector or -EINVAL if
+ *		integration time was not found.
+ */
+static inline int iio_gts_find_int_time_by_sel(struct iio_gts *gts, int sel)
+{
+	const struct iio_itime_sel_mul *itime;
+
+	itime = iio_gts_find_itime_by_sel(gts, sel);
+	if (!itime)
+		return -EINVAL;
+
+	return itime->time_us;
+}
+
+/**
+ * iio_gts_find_sel_by_int_time - find selector matching integration time
+ * @gts:	Gain time scale descriptor
+ * @gain:	HW-gain for which matching selector is searched for
+ *
+ * Return:	a selector matching given integration time or -EINVAL if
+ *		selector was not found.
+ */
+static inline int iio_gts_find_sel_by_int_time(struct iio_gts *gts, int time)
+{
+	const struct iio_itime_sel_mul *itime;
+
+	itime = iio_gts_find_itime_by_time(gts, time);
+	if (!itime)
+		return -EINVAL;
+
+	return itime->sel;
+}
+
+/**
+ * iio_gts_valid_time - check if given integration time is valid
+ * @gts:	Gain time scale descriptor
+ * @time_us:	Integration time to check
+ *
+ * Return:	True if given time is supported by device. False if not.
+ */
+static inline bool iio_gts_valid_time(struct iio_gts *gts, int time_us)
+{
+	return iio_gts_find_itime_by_time(gts, time_us) != NULL;
+}
+
+int iio_gts_find_sel_by_gain(struct iio_gts *gts, int gain);
+
+/**
+ * iio_gts_valid_gain - check if given HW-gain is valid
+ * @gts:	Gain time scale descriptor
+ * @gain:	HW-gain to check
+ *
+ * Return:	True if given time is supported by device. False if not.
+ */
+static inline bool iio_gts_valid_gain(struct iio_gts *gts, int gain)
+{
+	return iio_gts_find_sel_by_gain(gts, gain) >= 0;
+}
+
+int iio_find_closest_gain_low(struct iio_gts *gts, int gain, bool *in_range);
+int iio_gts_find_gain_by_sel(struct iio_gts *gts, int sel);
+int iio_gts_get_min_gain(struct iio_gts *gts);
+int iio_gts_find_int_time_by_sel(struct iio_gts *gts, int sel);
+int iio_gts_find_sel_by_int_time(struct iio_gts *gts, int time);
+
+int iio_gts_total_gain_to_scale(struct iio_gts *gts, int total_gain,
+				int *scale_int, int *scale_nano);
+int iio_gts_find_gain_sel_for_scale_using_time(struct iio_gts *gts, int time_sel,
+					       int scale_int, int scale_nano,
+					       int *gain_sel);
+int iio_gts_get_scale(struct iio_gts *gts, int gain, int time, int *scale_int,
+		      int *scale_nano);
+int iio_gts_find_new_gain_sel_by_old_gain_time(struct iio_gts *gts,
+					       int old_gain, int old_time_sel,
+					       int new_time_sel, int *new_gain);
+int iio_gts_find_new_gain_by_old_gain_time(struct iio_gts *gts, int old_gain,
+					   int old_time, int new_time,
+					   int *new_gain);
+int iio_gts_avail_times(struct iio_gts *gts,  const int **vals, int *type,
+			int *length);
+int iio_gts_all_avail_scales(struct iio_gts *gts, const int **vals, int *type,
+			     int *length);
+int iio_gts_avail_scales_for_time(struct iio_gts *gts, int time,
+				  const int **vals, int *type, int *length);
+
+#endif
diff --git a/include/linux/iio/trigger.h b/include/linux/iio/trigger.h
index f6360d9a492d..51f52c5c6092 100644
--- a/include/linux/iio/trigger.h
+++ b/include/linux/iio/trigger.h
@@ -151,14 +151,8 @@ void iio_trigger_unregister(struct iio_trigger *trig_info);
  **/
 int iio_trigger_set_immutable(struct iio_dev *indio_dev, struct iio_trigger *trig);
 
-/**
- * iio_trigger_poll() - called on a trigger occurring
- * @trig:	trigger which occurred
- *
- * Typically called in relevant hardware interrupt handler.
- **/
 void iio_trigger_poll(struct iio_trigger *trig);
-void iio_trigger_poll_chained(struct iio_trigger *trig);
+void iio_trigger_poll_nested(struct iio_trigger *trig);
 
 irqreturn_t iio_trigger_generic_data_rdy_poll(int irq, void *private);
 
diff --git a/include/linux/interconnect-provider.h b/include/linux/interconnect-provider.h
index d12cd18aab3f..e6d8aca6886d 100644
--- a/include/linux/interconnect-provider.h
+++ b/include/linux/interconnect-provider.h
@@ -118,15 +118,12 @@ int icc_std_aggregate(struct icc_node *node, u32 tag, u32 avg_bw,
 struct icc_node *icc_node_create(int id);
 void icc_node_destroy(int id);
 int icc_link_create(struct icc_node *node, const int dst_id);
-int icc_link_destroy(struct icc_node *src, struct icc_node *dst);
 void icc_node_add(struct icc_node *node, struct icc_provider *provider);
 void icc_node_del(struct icc_node *node);
 int icc_nodes_remove(struct icc_provider *provider);
 void icc_provider_init(struct icc_provider *provider);
 int icc_provider_register(struct icc_provider *provider);
 void icc_provider_deregister(struct icc_provider *provider);
-int icc_provider_add(struct icc_provider *provider);
-void icc_provider_del(struct icc_provider *provider);
 struct icc_node_data *of_icc_get_from_provider(struct of_phandle_args *spec);
 void icc_sync_state(struct device *dev);
 
@@ -152,11 +149,6 @@ static inline int icc_link_create(struct icc_node *node, const int dst_id)
 	return -ENOTSUPP;
 }
 
-static inline int icc_link_destroy(struct icc_node *src, struct icc_node *dst)
-{
-	return -ENOTSUPP;
-}
-
 static inline void icc_node_add(struct icc_node *node, struct icc_provider *provider)
 {
 }
@@ -179,15 +171,6 @@ static inline int icc_provider_register(struct icc_provider *provider)
 
 static inline void icc_provider_deregister(struct icc_provider *provider) { }
 
-static inline int icc_provider_add(struct icc_provider *provider)
-{
-	return -ENOTSUPP;
-}
-
-static inline void icc_provider_del(struct icc_provider *provider)
-{
-}
-
 static inline struct icc_node_data *of_icc_get_from_provider(struct of_phandle_args *spec)
 {
 	return ERR_PTR(-ENOTSUPP);
diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h
index 117d02708439..eda1ffd99c1a 100644
--- a/include/linux/mfd/palmas.h
+++ b/include/linux/mfd/palmas.h
@@ -128,12 +128,6 @@ struct palmas_pmic_driver_data {
 			    struct regulator_config config);
 };
 
-struct palmas_adc_wakeup_property {
-	int adc_channel_number;
-	int adc_high_threshold;
-	int adc_low_threshold;
-};
-
 struct palmas_gpadc_platform_data {
 	/* Channel 3 current source is only enabled during conversion */
 	int ch3_current;	/* 0: off; 1: 10uA; 2: 400uA; 3: 800 uA */
@@ -152,8 +146,6 @@ struct palmas_gpadc_platform_data {
 	int start_polarity;
 
 	int auto_conversion_period_ms;
-	struct palmas_adc_wakeup_property *adc_wakeup1_data;
-	struct palmas_adc_wakeup_property *adc_wakeup2_data;
 };
 
 struct palmas_reg_init {
diff --git a/include/linux/mhi.h b/include/linux/mhi.h
index a5441ad33c74..f6de4b6ecfc7 100644
--- a/include/linux/mhi.h
+++ b/include/linux/mhi.h
@@ -766,13 +766,6 @@ int mhi_prepare_for_transfer_autoqueue(struct mhi_device *mhi_dev);
 void mhi_unprepare_from_transfer(struct mhi_device *mhi_dev);
 
 /**
- * mhi_poll - Poll for any available data in DL direction
- * @mhi_dev: Device associated with the channels
- * @budget: # of events to process
- */
-int mhi_poll(struct mhi_device *mhi_dev, u32 budget);
-
-/**
  * mhi_queue_dma - Send or receive DMA mapped buffers from client device
  *                 over MHI channel
  * @mhi_dev: Device associated with the channels
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 549590e9c644..ccaaeda792c0 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -9,6 +9,7 @@
 #define LINUX_MOD_DEVICETABLE_H
 
 #ifdef __KERNEL__
+#include <linux/mei.h>
 #include <linux/types.h>
 #include <linux/uuid.h>
 typedef unsigned long kernel_ulong_t;
@@ -911,4 +912,19 @@ struct ishtp_device_id {
 	kernel_ulong_t driver_data;
 };
 
+/**
+ * struct cdx_device_id - CDX device identifier
+ * @vendor: Vendor ID
+ * @device: Device ID
+ * @override_only: Match only when dev->driver_override is this driver.
+ *
+ * Type of entries in the "device Id" table for CDX devices supported by
+ * a CDX device driver.
+ */
+struct cdx_device_id {
+	__u16 vendor;
+	__u16 device;
+	__u32 override_only;
+};
+
 #endif /* LINUX_MOD_DEVICETABLE_H */
diff --git a/include/linux/nvmem-consumer.h b/include/linux/nvmem-consumer.h
index 1f62f7ba71ca..fa030d93b768 100644
--- a/include/linux/nvmem-consumer.h
+++ b/include/linux/nvmem-consumer.h
@@ -239,6 +239,7 @@ struct nvmem_cell *of_nvmem_cell_get(struct device_node *np,
 				     const char *id);
 struct nvmem_device *of_nvmem_device_get(struct device_node *np,
 					 const char *name);
+struct device_node *of_nvmem_layout_get_container(struct nvmem_device *nvmem);
 #else
 static inline struct nvmem_cell *of_nvmem_cell_get(struct device_node *np,
 						   const char *id)
@@ -251,6 +252,12 @@ static inline struct nvmem_device *of_nvmem_device_get(struct device_node *np,
 {
 	return ERR_PTR(-EOPNOTSUPP);
 }
+
+static inline struct device_node *
+of_nvmem_layout_get_container(struct nvmem_device *nvmem)
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
 #endif /* CONFIG_NVMEM && CONFIG_OF */
 
 #endif  /* ifndef _LINUX_NVMEM_CONSUMER_H */
diff --git a/include/linux/nvmem-provider.h b/include/linux/nvmem-provider.h
index 0262b86194eb..dae26295e6be 100644
--- a/include/linux/nvmem-provider.h
+++ b/include/linux/nvmem-provider.h
@@ -9,6 +9,7 @@
 #ifndef _LINUX_NVMEM_PROVIDER_H
 #define _LINUX_NVMEM_PROVIDER_H
 
+#include <linux/device/driver.h>
 #include <linux/err.h>
 #include <linux/errno.h>
 #include <linux/gpio/consumer.h>
@@ -20,7 +21,8 @@ typedef int (*nvmem_reg_write_t)(void *priv, unsigned int offset,
 				 void *val, size_t bytes);
 /* used for vendor specific post processing of cell data */
 typedef int (*nvmem_cell_post_process_t)(void *priv, const char *id, int index,
-					 unsigned int offset, void *buf, size_t bytes);
+					 unsigned int offset, void *buf,
+					 size_t bytes);
 
 enum nvmem_type {
 	NVMEM_TYPE_UNKNOWN = 0,
@@ -50,18 +52,25 @@ struct nvmem_keepout {
  * struct nvmem_cell_info - NVMEM cell description
  * @name:	Name.
  * @offset:	Offset within the NVMEM device.
+ * @raw_len:	Length of raw data (without post processing).
  * @bytes:	Length of the cell.
  * @bit_offset:	Bit offset if cell is smaller than a byte.
  * @nbits:	Number of bits.
  * @np:		Optional device_node pointer.
+ * @read_post_process:	Callback for optional post processing of cell data
+ *			on reads.
+ * @priv:	Opaque data passed to the read_post_process hook.
  */
 struct nvmem_cell_info {
 	const char		*name;
 	unsigned int		offset;
+	size_t			raw_len;
 	unsigned int		bytes;
 	unsigned int		bit_offset;
 	unsigned int		nbits;
 	struct device_node	*np;
+	nvmem_cell_post_process_t read_post_process;
+	void			*priv;
 };
 
 /**
@@ -82,12 +91,12 @@ struct nvmem_cell_info {
  * @no_of_node:	Device should not use the parent's of_node even if it's !NULL.
  * @reg_read:	Callback to read data.
  * @reg_write:	Callback to write data.
- * @cell_post_process:	Callback for vendor specific post processing of cell data
  * @size:	Device size.
  * @word_size:	Minimum read/write access granularity.
  * @stride:	Minimum read/write access stride.
  * @priv:	User context passed to read/write callbacks.
  * @ignore_wp:  Write Protect pin is managed by the provider.
+ * @layout:	Fixed layout associated with this nvmem device.
  *
  * Note: A default "nvmem<id>" name will be assigned to the device if
  * no name is specified in its configuration. In such case "<id>" is
@@ -109,11 +118,11 @@ struct nvmem_config {
 	bool			read_only;
 	bool			root_only;
 	bool			ignore_wp;
+	struct nvmem_layout	*layout;
 	struct device_node	*of_node;
 	bool			no_of_node;
 	nvmem_reg_read_t	reg_read;
 	nvmem_reg_write_t	reg_write;
-	nvmem_cell_post_process_t cell_post_process;
 	int	size;
 	int	word_size;
 	int	stride;
@@ -142,6 +151,38 @@ struct nvmem_cell_table {
 	struct list_head	node;
 };
 
+/**
+ * struct nvmem_layout - NVMEM layout definitions
+ *
+ * @name:		Layout name.
+ * @of_match_table:	Open firmware match table.
+ * @add_cells:		Will be called if a nvmem device is found which
+ *			has this layout. The function will add layout
+ *			specific cells with nvmem_add_one_cell().
+ * @fixup_cell_info:	Will be called before a cell is added. Can be
+ *			used to modify the nvmem_cell_info.
+ * @owner:		Pointer to struct module.
+ * @node:		List node.
+ *
+ * A nvmem device can hold a well defined structure which can just be
+ * evaluated during runtime. For example a TLV list, or a list of "name=val"
+ * pairs. A nvmem layout can parse the nvmem device and add appropriate
+ * cells.
+ */
+struct nvmem_layout {
+	const char *name;
+	const struct of_device_id *of_match_table;
+	int (*add_cells)(struct device *dev, struct nvmem_device *nvmem,
+			 struct nvmem_layout *layout);
+	void (*fixup_cell_info)(struct nvmem_device *nvmem,
+				struct nvmem_layout *layout,
+				struct nvmem_cell_info *cell);
+
+	/* private */
+	struct module *owner;
+	struct list_head node;
+};
+
 #if IS_ENABLED(CONFIG_NVMEM)
 
 struct nvmem_device *nvmem_register(const struct nvmem_config *cfg);
@@ -156,6 +197,14 @@ void nvmem_del_cell_table(struct nvmem_cell_table *table);
 int nvmem_add_one_cell(struct nvmem_device *nvmem,
 		       const struct nvmem_cell_info *info);
 
+int __nvmem_layout_register(struct nvmem_layout *layout, struct module *owner);
+#define nvmem_layout_register(layout) \
+	__nvmem_layout_register(layout, THIS_MODULE)
+void nvmem_layout_unregister(struct nvmem_layout *layout);
+
+const void *nvmem_layout_get_match_data(struct nvmem_device *nvmem,
+					struct nvmem_layout *layout);
+
 #else
 
 static inline struct nvmem_device *nvmem_register(const struct nvmem_config *c)
@@ -179,5 +228,24 @@ static inline int nvmem_add_one_cell(struct nvmem_device *nvmem,
 	return -EOPNOTSUPP;
 }
 
+static inline int nvmem_layout_register(struct nvmem_layout *layout)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline void nvmem_layout_unregister(struct nvmem_layout *layout) {}
+
+static inline const void *
+nvmem_layout_get_match_data(struct nvmem_device *nvmem,
+			    struct nvmem_layout *layout)
+{
+	return NULL;
+}
+
 #endif /* CONFIG_NVMEM */
+
+#define module_nvmem_layout_driver(__layout_driver)		\
+	module_driver(__layout_driver, nvmem_layout_register,	\
+		      nvmem_layout_unregister)
+
 #endif  /* ifndef _LINUX_NVMEM_PROVIDER_H */
diff --git a/include/linux/of.h b/include/linux/of.h
index bc2eb39dcf75..6ecde0515677 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -371,7 +371,8 @@ extern int of_n_size_cells(struct device_node *np);
 extern const struct of_device_id *of_match_node(
 	const struct of_device_id *matches, const struct device_node *node);
 extern const void *of_device_get_match_data(const struct device *dev);
-extern int of_modalias_node(struct device_node *node, char *modalias, int len);
+extern int of_alias_from_compatible(const struct device_node *node, char *alias,
+				    int len);
 extern void of_print_phandle_args(const char *msg, const struct of_phandle_args *args);
 extern int __of_parse_phandle_with_args(const struct device_node *np,
 	const char *list_name, const char *cells_name, int cell_count,
@@ -382,6 +383,10 @@ extern int of_parse_phandle_with_args_map(const struct device_node *np,
 extern int of_count_phandle_with_args(const struct device_node *np,
 	const char *list_name, const char *cells_name);
 
+/* module functions */
+extern ssize_t of_modalias(const struct device_node *np, char *str, ssize_t len);
+extern int of_request_module(const struct device_node *np);
+
 /* phandle iterator functions */
 extern int of_phandle_iterator_init(struct of_phandle_iterator *it,
 				    const struct device_node *np,
@@ -747,6 +752,17 @@ static inline int of_count_phandle_with_args(const struct device_node *np,
 	return -ENOSYS;
 }
 
+static inline ssize_t of_modalias(const struct device_node *np, char *str,
+				  ssize_t len)
+{
+	return -ENODEV;
+}
+
+static inline int of_request_module(const struct device_node *np)
+{
+	return -ENODEV;
+}
+
 static inline int of_phandle_iterator_init(struct of_phandle_iterator *it,
 					   const struct device_node *np,
 					   const char *list_name,
diff --git a/include/linux/of_device.h b/include/linux/of_device.h
index 33f0ca348a62..2c7a3d4bc775 100644
--- a/include/linux/of_device.h
+++ b/include/linux/of_device.h
@@ -27,7 +27,6 @@ static inline int of_driver_match_device(struct device *dev,
 }
 
 extern ssize_t of_device_modalias(struct device *dev, char *str, ssize_t len);
-extern int of_device_request_module(struct device *dev);
 
 extern void of_device_uevent(const struct device *dev, struct kobj_uevent_env *env);
 extern int of_device_uevent_modalias(const struct device *dev, struct kobj_uevent_env *env);
@@ -58,11 +57,6 @@ static inline int of_device_modalias(struct device *dev,
 	return -ENODEV;
 }
 
-static inline int of_device_request_module(struct device *dev)
-{
-	return -ENODEV;
-}
-
 static inline int of_device_uevent_modalias(const struct device *dev,
 				   struct kobj_uevent_env *env)
 {
diff --git a/include/linux/uuid.h b/include/linux/uuid.h
index 6b1a3efa1e0b..43d4a79b273d 100644
--- a/include/linux/uuid.h
+++ b/include/linux/uuid.h
@@ -107,7 +107,4 @@ extern const u8 uuid_index[16];
 int guid_parse(const char *uuid, guid_t *u);
 int uuid_parse(const char *uuid, uuid_t *u);
 
-/* MEI UUID type, don't use anywhere else */
-#include <uapi/linux/uuid.h>
-
 #endif