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-rw-r--r--include/linux/fmc-sdb.h39
-rw-r--r--include/linux/fmc.h269
-rw-r--r--include/linux/gpio/driver.h29
-rw-r--r--include/linux/gpio/gpio-reg.h2
-rw-r--r--include/linux/gpio/machine.h4
-rw-r--r--include/linux/platform_data/gpio-omap.h2
-rw-r--r--include/linux/siox.h10
7 files changed, 27 insertions, 328 deletions
diff --git a/include/linux/fmc-sdb.h b/include/linux/fmc-sdb.h
deleted file mode 100644
index bec899f0867c..000000000000
--- a/include/linux/fmc-sdb.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * This file is separate from sdb.h, because I want that one to remain
- * unchanged (as far as possible) from the official sdb distribution
- *
- * This file and associated functionality are a playground for me to
- * understand stuff which will later be implemented in more generic places.
- */
-#include <linux/sdb.h>
-
-/* This is the union of all currently defined types */
-union sdb_record {
- struct sdb_interconnect ic;
- struct sdb_device dev;
- struct sdb_bridge bridge;
- struct sdb_integration integr;
- struct sdb_empty empty;
- struct sdb_synthesis synthesis;
- struct sdb_repo_url repo_url;
-};
-
-struct fmc_device;
-
-/* Every sdb table is turned into this structure */
-struct sdb_array {
- int len;
- int level;
- unsigned long baseaddr;
- struct fmc_device *fmc; /* the device that hosts it */
- struct sdb_array *parent; /* NULL at root */
- union sdb_record *record; /* copies of the struct */
- struct sdb_array **subtree; /* only valid for bridge items */
-};
-
-extern int fmc_scan_sdb_tree(struct fmc_device *fmc, unsigned long address);
-extern void fmc_show_sdb_tree(const struct fmc_device *fmc);
-extern signed long fmc_find_sdb_device(struct sdb_array *tree, uint64_t vendor,
- uint32_t device, unsigned long *sz);
-extern int fmc_free_sdb_tree(struct fmc_device *fmc);
diff --git a/include/linux/fmc.h b/include/linux/fmc.h
deleted file mode 100644
index b355f3806f3f..000000000000
--- a/include/linux/fmc.h
+++ /dev/null
@@ -1,269 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Copyright (C) 2012 CERN (www.cern.ch)
- * Author: Alessandro Rubini <rubini@gnudd.com>
- *
- * This work is part of the White Rabbit project, a research effort led
- * by CERN, the European Institute for Nuclear Research.
- */
-#ifndef __LINUX_FMC_H__
-#define __LINUX_FMC_H__
-#include <linux/types.h>
-#include <linux/moduleparam.h>
-#include <linux/device.h>
-#include <linux/list.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-
-struct fmc_device;
-struct fmc_driver;
-
-/*
- * This bus abstraction is developed separately from drivers, so we need
- * to check the version of the data structures we receive.
- */
-
-#define FMC_MAJOR 3
-#define FMC_MINOR 0
-#define FMC_VERSION ((FMC_MAJOR << 16) | FMC_MINOR)
-#define __FMC_MAJOR(x) ((x) >> 16)
-#define __FMC_MINOR(x) ((x) & 0xffff)
-
-/*
- * The device identification, as defined by the IPMI FRU (Field Replaceable
- * Unit) includes four different strings to describe the device. Here we
- * only match the "Board Manufacturer" and the "Board Product Name",
- * ignoring the "Board Serial Number" and "Board Part Number". All 4 are
- * expected to be strings, so they are treated as zero-terminated C strings.
- * Unspecified string (NULL) means "any", so if both are unspecified this
- * is a catch-all driver. So null entries are allowed and we use array
- * and length. This is unlike pci and usb that use null-terminated arrays
- */
-struct fmc_fru_id {
- char *manufacturer;
- char *product_name;
-};
-
-/*
- * If the FPGA is already programmed (think Etherbone or the second
- * SVEC slot), we can match on SDB devices in the memory image. This
- * match uses an array of devices that must all be present, and the
- * match is based on vendor and device only. Further checks are expected
- * to happen in the probe function. Zero means "any" and catch-all is allowed.
- */
-struct fmc_sdb_one_id {
- uint64_t vendor;
- uint32_t device;
-};
-struct fmc_sdb_id {
- struct fmc_sdb_one_id *cores;
- int cores_nr;
-};
-
-struct fmc_device_id {
- struct fmc_fru_id *fru_id;
- int fru_id_nr;
- struct fmc_sdb_id *sdb_id;
- int sdb_id_nr;
-};
-
-/* This sizes the module_param_array used by generic module parameters */
-#define FMC_MAX_CARDS 32
-
-/* The driver is a pretty simple thing */
-struct fmc_driver {
- unsigned long version;
- struct device_driver driver;
- int (*probe)(struct fmc_device *);
- int (*remove)(struct fmc_device *);
- const struct fmc_device_id id_table;
- /* What follows is for generic module parameters */
- int busid_n;
- int busid_val[FMC_MAX_CARDS];
- int gw_n;
- char *gw_val[FMC_MAX_CARDS];
-};
-#define to_fmc_driver(x) container_of((x), struct fmc_driver, driver)
-
-/* These are the generic parameters, that drivers may instantiate */
-#define FMC_PARAM_BUSID(_d) \
- module_param_array_named(busid, _d.busid_val, int, &_d.busid_n, 0444)
-#define FMC_PARAM_GATEWARE(_d) \
- module_param_array_named(gateware, _d.gw_val, charp, &_d.gw_n, 0444)
-
-/*
- * Drivers may need to configure gpio pins in the carrier. To read input
- * (a very uncommon operation, and definitely not in the hot paths), just
- * configure one gpio only and get 0 or 1 as retval of the config method
- */
-struct fmc_gpio {
- char *carrier_name; /* name or NULL for virtual pins */
- int gpio;
- int _gpio; /* internal use by the carrier */
- int mode; /* GPIOF_DIR_OUT etc, from <linux/gpio.h> */
- int irqmode; /* IRQF_TRIGGER_LOW and so on */
-};
-
-/* The numbering of gpio pins allows access to raw pins or virtual roles */
-#define FMC_GPIO_RAW(x) (x) /* 4096 of them */
-#define __FMC_GPIO_IS_RAW(x) ((x) < 0x1000)
-#define FMC_GPIO_IRQ(x) ((x) + 0x1000) /* 256 of them */
-#define FMC_GPIO_LED(x) ((x) + 0x1100) /* 256 of them */
-#define FMC_GPIO_KEY(x) ((x) + 0x1200) /* 256 of them */
-#define FMC_GPIO_TP(x) ((x) + 0x1300) /* 256 of them */
-#define FMC_GPIO_USER(x) ((x) + 0x1400) /* 256 of them */
-/* We may add SCL and SDA, or other roles if the need arises */
-
-/* GPIOF_DIR_IN etc are missing before 3.0. copy from <linux/gpio.h> */
-#ifndef GPIOF_DIR_IN
-# define GPIOF_DIR_OUT (0 << 0)
-# define GPIOF_DIR_IN (1 << 0)
-# define GPIOF_INIT_LOW (0 << 1)
-# define GPIOF_INIT_HIGH (1 << 1)
-#endif
-
-/*
- * The operations are offered by each carrier and should make driver
- * design completely independent of the carrier. Named GPIO pins may be
- * the exception.
- */
-struct fmc_operations {
- uint32_t (*read32)(struct fmc_device *fmc, int offset);
- void (*write32)(struct fmc_device *fmc, uint32_t value, int offset);
- int (*validate)(struct fmc_device *fmc, struct fmc_driver *drv);
- int (*reprogram_raw)(struct fmc_device *f, struct fmc_driver *d,
- void *gw, unsigned long len);
- int (*reprogram)(struct fmc_device *f, struct fmc_driver *d, char *gw);
- int (*irq_request)(struct fmc_device *fmc, irq_handler_t h,
- char *name, int flags);
- void (*irq_ack)(struct fmc_device *fmc);
- int (*irq_free)(struct fmc_device *fmc);
- int (*gpio_config)(struct fmc_device *fmc, struct fmc_gpio *gpio,
- int ngpio);
- int (*read_ee)(struct fmc_device *fmc, int pos, void *d, int l);
- int (*write_ee)(struct fmc_device *fmc, int pos, const void *d, int l);
-};
-
-/* Prefer this helper rather than calling of fmc->reprogram directly */
-int fmc_reprogram_raw(struct fmc_device *fmc, struct fmc_driver *d,
- void *gw, unsigned long len, int sdb_entry);
-extern int fmc_reprogram(struct fmc_device *f, struct fmc_driver *d, char *gw,
- int sdb_entry);
-
-/*
- * The device reports all information needed to access hw.
- *
- * If we have eeprom_len and not contents, the core reads it.
- * Then, parsing of identifiers is done by the core which fills fmc_fru_id..
- * Similarly a device that must be matched based on SDB cores must
- * fill the entry point and the core will scan the bus (FIXME: sdb match)
- */
-struct fmc_device {
- unsigned long version;
- unsigned long flags;
- struct module *owner; /* char device must pin it */
- struct fmc_fru_id id; /* for EEPROM-based match */
- struct fmc_operations *op; /* carrier-provided */
- int irq; /* according to host bus. 0 == none */
- int eeprom_len; /* Usually 8kB, may be less */
- int eeprom_addr; /* 0x50, 0x52 etc */
- uint8_t *eeprom; /* Full contents or leading part */
- char *carrier_name; /* "SPEC" or similar, for special use */
- void *carrier_data; /* "struct spec *" or equivalent */
- __iomem void *fpga_base; /* May be NULL (Etherbone) */
- __iomem void *slot_base; /* Set by the driver */
- struct fmc_device **devarray; /* Allocated by the bus */
- int slot_id; /* Index in the slot array */
- int nr_slots; /* Number of slots in this carrier */
- unsigned long memlen; /* Used for the char device */
- struct device dev; /* For Linux use */
- struct device *hwdev; /* The underlying hardware device */
- unsigned long sdbfs_entry;
- struct sdb_array *sdb;
- uint32_t device_id; /* Filled by the device */
- char *mezzanine_name; /* Defaults to ``fmc'' */
- void *mezzanine_data;
-
- struct dentry *dbg_dir;
- struct dentry *dbg_sdb_dump;
-};
-#define to_fmc_device(x) container_of((x), struct fmc_device, dev)
-
-#define FMC_DEVICE_HAS_GOLDEN 1
-#define FMC_DEVICE_HAS_CUSTOM 2
-#define FMC_DEVICE_NO_MEZZANINE 4
-#define FMC_DEVICE_MATCH_SDB 8 /* fmc-core must scan sdb in fpga */
-
-/*
- * If fpga_base can be used, the carrier offers no readl/writel methods, and
- * this expands to a single, fast, I/O access.
- */
-static inline uint32_t fmc_readl(struct fmc_device *fmc, int offset)
-{
- if (unlikely(fmc->op->read32))
- return fmc->op->read32(fmc, offset);
- return readl(fmc->fpga_base + offset);
-}
-static inline void fmc_writel(struct fmc_device *fmc, uint32_t val, int off)
-{
- if (unlikely(fmc->op->write32))
- fmc->op->write32(fmc, val, off);
- else
- writel(val, fmc->fpga_base + off);
-}
-
-/* pci-like naming */
-static inline void *fmc_get_drvdata(const struct fmc_device *fmc)
-{
- return dev_get_drvdata(&fmc->dev);
-}
-
-static inline void fmc_set_drvdata(struct fmc_device *fmc, void *data)
-{
- dev_set_drvdata(&fmc->dev, data);
-}
-
-struct fmc_gateware {
- void *bitstream;
- unsigned long len;
-};
-
-/* The 5 access points */
-extern int fmc_driver_register(struct fmc_driver *drv);
-extern void fmc_driver_unregister(struct fmc_driver *drv);
-extern int fmc_device_register(struct fmc_device *tdev);
-extern int fmc_device_register_gw(struct fmc_device *tdev,
- struct fmc_gateware *gw);
-extern void fmc_device_unregister(struct fmc_device *tdev);
-
-/* Three more for device sets, all driven by the same FPGA */
-extern int fmc_device_register_n(struct fmc_device **devs, int n);
-extern int fmc_device_register_n_gw(struct fmc_device **devs, int n,
- struct fmc_gateware *gw);
-extern void fmc_device_unregister_n(struct fmc_device **devs, int n);
-
-/* Internal cross-calls between files; not exported to other modules */
-extern int fmc_match(struct device *dev, struct device_driver *drv);
-extern int fmc_fill_id_info(struct fmc_device *fmc);
-extern void fmc_free_id_info(struct fmc_device *fmc);
-extern void fmc_dump_eeprom(const struct fmc_device *fmc);
-
-/* helpers for FMC operations */
-extern int fmc_irq_request(struct fmc_device *fmc, irq_handler_t h,
- char *name, int flags);
-extern void fmc_irq_free(struct fmc_device *fmc);
-extern void fmc_irq_ack(struct fmc_device *fmc);
-extern int fmc_validate(struct fmc_device *fmc, struct fmc_driver *drv);
-extern int fmc_gpio_config(struct fmc_device *fmc, struct fmc_gpio *gpio,
- int ngpio);
-extern int fmc_read_ee(struct fmc_device *fmc, int pos, void *d, int l);
-extern int fmc_write_ee(struct fmc_device *fmc, int pos, const void *d, int l);
-
-/* helpers for FMC operations */
-extern int fmc_irq_request(struct fmc_device *fmc, irq_handler_t h,
- char *name, int flags);
-extern void fmc_irq_free(struct fmc_device *fmc);
-extern void fmc_irq_ack(struct fmc_device *fmc);
-extern int fmc_validate(struct fmc_device *fmc, struct fmc_driver *drv);
-
-#endif /* __LINUX_FMC_H__ */
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index a1d273c96016..8d58386aadd5 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -18,6 +18,7 @@ struct seq_file;
struct gpio_device;
struct module;
enum gpiod_flags;
+enum gpio_lookup_flags;
#ifdef CONFIG_GPIOLIB
@@ -102,13 +103,6 @@ struct gpio_irq_chip {
unsigned int num_parents;
/**
- * @parent_irq:
- *
- * For use by gpiochip_set_cascaded_irqchip()
- */
- unsigned int parent_irq;
-
- /**
* @parents:
*
* A list of interrupt parents of a GPIO chip. This is owned by the
@@ -167,7 +161,7 @@ struct gpio_irq_chip {
*/
void (*irq_disable)(struct irq_data *data);
};
-#endif
+#endif /* CONFIG_GPIOLIB_IRQCHIP */
/**
* struct gpio_chip - abstract a GPIO controller
@@ -200,6 +194,8 @@ struct gpio_irq_chip {
* @dbg_show: optional routine to show contents in debugfs; default code
* will be used when this is omitted, but custom code can show extra
* state (such as pullup/pulldown configuration).
+ * @init_valid_mask: optional routine to initialize @valid_mask, to be used if
+ * not all GPIOs are valid.
* @base: identifies the first GPIO number handled by this chip;
* or, if negative during registration, requests dynamic ID allocation.
* DEPRECATION: providing anything non-negative and nailing the base
@@ -307,7 +303,7 @@ struct gpio_chip {
spinlock_t bgpio_lock;
unsigned long bgpio_data;
unsigned long bgpio_dir;
-#endif
+#endif /* CONFIG_GPIO_GENERIC */
#ifdef CONFIG_GPIOLIB_IRQCHIP
/*
@@ -322,7 +318,7 @@ struct gpio_chip {
* used to handle IRQs for most practical cases.
*/
struct gpio_irq_chip irq;
-#endif
+#endif /* CONFIG_GPIOLIB_IRQCHIP */
/**
* @need_valid_mask:
@@ -369,7 +365,7 @@ struct gpio_chip {
*/
int (*of_xlate)(struct gpio_chip *gc,
const struct of_phandle_args *gpiospec, u32 *flags);
-#endif
+#endif /* CONFIG_OF_GPIO */
};
extern const char *gpiochip_is_requested(struct gpio_chip *chip,
@@ -412,7 +408,7 @@ extern int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data,
})
#else
#define gpiochip_add_data(chip, data) gpiochip_add_data_with_key(chip, data, NULL, NULL)
-#endif
+#endif /* CONFIG_LOCKDEP */
static inline int gpiochip_add(struct gpio_chip *chip)
{
@@ -467,7 +463,7 @@ int bgpio_init(struct gpio_chip *gc, struct device *dev,
#define BGPIOF_READ_OUTPUT_REG_SET BIT(4) /* reg_set stores output value */
#define BGPIOF_NO_OUTPUT BIT(5) /* only input */
-#endif
+#endif /* CONFIG_GPIO_GENERIC */
#ifdef CONFIG_GPIOLIB_IRQCHIP
@@ -537,7 +533,7 @@ static inline int gpiochip_irqchip_add_nested(struct gpio_chip *gpiochip,
handler, type, true,
&lock_key, &request_key);
}
-#else
+#else /* ! CONFIG_LOCKDEP */
static inline int gpiochip_irqchip_add(struct gpio_chip *gpiochip,
struct irq_chip *irqchip,
unsigned int first_irq,
@@ -588,7 +584,7 @@ int gpiochip_add_pingroup_range(struct gpio_chip *chip,
unsigned int gpio_offset, const char *pin_group);
void gpiochip_remove_pin_ranges(struct gpio_chip *chip);
-#else
+#else /* ! CONFIG_PINCTRL */
static inline int
gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
@@ -614,7 +610,8 @@ gpiochip_remove_pin_ranges(struct gpio_chip *chip)
struct gpio_desc *gpiochip_request_own_desc(struct gpio_chip *chip, u16 hwnum,
const char *label,
- enum gpiod_flags flags);
+ enum gpio_lookup_flags lflags,
+ enum gpiod_flags dflags);
void gpiochip_free_own_desc(struct gpio_desc *desc);
void devprop_gpiochip_set_names(struct gpio_chip *chip,
diff --git a/include/linux/gpio/gpio-reg.h b/include/linux/gpio/gpio-reg.h
index 5c6efd394cb0..39b888c40b39 100644
--- a/include/linux/gpio/gpio-reg.h
+++ b/include/linux/gpio/gpio-reg.h
@@ -11,4 +11,4 @@ struct gpio_chip *gpio_reg_init(struct device *dev, void __iomem *reg,
int gpio_reg_resume(struct gpio_chip *gc);
-#endif
+#endif /* GPIO_REG_H */
diff --git a/include/linux/gpio/machine.h b/include/linux/gpio/machine.h
index 35f299d1f6a7..1ebe5be05d5f 100644
--- a/include/linux/gpio/machine.h
+++ b/include/linux/gpio/machine.h
@@ -97,7 +97,7 @@ void gpiod_add_lookup_table(struct gpiod_lookup_table *table);
void gpiod_add_lookup_tables(struct gpiod_lookup_table **tables, size_t n);
void gpiod_remove_lookup_table(struct gpiod_lookup_table *table);
void gpiod_add_hogs(struct gpiod_hog *hogs);
-#else
+#else /* ! CONFIG_GPIOLIB */
static inline
void gpiod_add_lookup_table(struct gpiod_lookup_table *table) {}
static inline
@@ -105,6 +105,6 @@ void gpiod_add_lookup_tables(struct gpiod_lookup_table **tables, size_t n) {}
static inline
void gpiod_remove_lookup_table(struct gpiod_lookup_table *table) {}
static inline void gpiod_add_hogs(struct gpiod_hog *hogs) {}
-#endif
+#endif /* CONFIG_GPIOLIB */
#endif /* __LINUX_GPIO_MACHINE_H */
diff --git a/include/linux/platform_data/gpio-omap.h b/include/linux/platform_data/gpio-omap.h
index 17edc43201d2..8b30b14b47d3 100644
--- a/include/linux/platform_data/gpio-omap.h
+++ b/include/linux/platform_data/gpio-omap.h
@@ -186,7 +186,7 @@ struct omap_gpio_platform_data {
bool is_mpuio; /* whether the bank is of type MPUIO */
u32 non_wakeup_gpios;
- struct omap_gpio_reg_offs *regs;
+ const struct omap_gpio_reg_offs *regs;
/* Return context loss count due to PM states changing */
int (*get_context_loss_count)(struct device *dev);
diff --git a/include/linux/siox.h b/include/linux/siox.h
index a860cb8c1f9d..da7225bf1877 100644
--- a/include/linux/siox.h
+++ b/include/linux/siox.h
@@ -72,3 +72,13 @@ static inline void siox_driver_unregister(struct siox_driver *sdriver)
{
return driver_unregister(&sdriver->driver);
}
+
+/*
+ * module_siox_driver() - Helper macro for drivers that don't do
+ * anything special in module init/exit. This eliminates a lot of
+ * boilerplate. Each module may only use this macro once, and
+ * calling it replaces module_init() and module_exit()
+ */
+#define module_siox_driver(__siox_driver) \
+ module_driver(__siox_driver, siox_driver_register, \
+ siox_driver_unregister)