132 lines
3.9 KiB
C
132 lines
3.9 KiB
C
/*
|
|
* Core pinctrl/GPIO driver for Intel GPIO controllers
|
|
*
|
|
* Copyright (C) 2015, Intel Corporation
|
|
* Authors: Mathias Nyman <mathias.nyman@linux.intel.com>
|
|
* Mika Westerberg <mika.westerberg@linux.intel.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef PINCTRL_INTEL_H
|
|
#define PINCTRL_INTEL_H
|
|
|
|
struct pinctrl_pin_desc;
|
|
struct platform_device;
|
|
struct device;
|
|
|
|
/**
|
|
* struct intel_pingroup - Description about group of pins
|
|
* @name: Name of the groups
|
|
* @pins: All pins in this group
|
|
* @npins: Number of pins in this groups
|
|
* @mode: Native mode in which the group is muxed out @pins
|
|
*/
|
|
struct intel_pingroup {
|
|
const char *name;
|
|
const unsigned *pins;
|
|
size_t npins;
|
|
unsigned short mode;
|
|
};
|
|
|
|
/**
|
|
* struct intel_function - Description about a function
|
|
* @name: Name of the function
|
|
* @groups: An array of groups for this function
|
|
* @ngroups: Number of groups in @groups
|
|
*/
|
|
struct intel_function {
|
|
const char *name;
|
|
const char * const *groups;
|
|
size_t ngroups;
|
|
};
|
|
|
|
/**
|
|
* struct intel_community - Intel pin community description
|
|
* @barno: MMIO BAR number where registers for this community reside
|
|
* @padown_offset: Register offset of PAD_OWN register from @regs. If %0
|
|
* then there is no support for owner.
|
|
* @padcfglock_offset: Register offset of PADCFGLOCK from @regs. If %0 then
|
|
* locking is not supported.
|
|
* @hostown_offset: Register offset of HOSTSW_OWN from @regs. If %0 then it
|
|
* is assumed that the host owns the pin (rather than
|
|
* ACPI).
|
|
* @ie_offset: Register offset of GPI_IE from @regs.
|
|
* @pin_base: Starting pin of pins in this community
|
|
* @gpp_size: Maximum number of pads in each group, such as PADCFGLOCK,
|
|
* HOSTSW_OWN, GPI_IS, GPI_IE, etc.
|
|
* @npins: Number of pins in this community
|
|
* @regs: Community specific common registers (reserved for core driver)
|
|
* @pad_regs: Community specific pad registers (reserved for core driver)
|
|
* @ngpps: Number of groups (hw groups) in this community (reserved for
|
|
* core driver)
|
|
*/
|
|
struct intel_community {
|
|
unsigned barno;
|
|
unsigned padown_offset;
|
|
unsigned padcfglock_offset;
|
|
unsigned hostown_offset;
|
|
unsigned ie_offset;
|
|
unsigned pin_base;
|
|
unsigned gpp_size;
|
|
size_t npins;
|
|
void __iomem *regs;
|
|
void __iomem *pad_regs;
|
|
size_t ngpps;
|
|
};
|
|
|
|
#define PIN_GROUP(n, p, m) \
|
|
{ \
|
|
.name = (n), \
|
|
.pins = (p), \
|
|
.npins = ARRAY_SIZE((p)), \
|
|
.mode = (m), \
|
|
}
|
|
|
|
#define FUNCTION(n, g) \
|
|
{ \
|
|
.name = (n), \
|
|
.groups = (g), \
|
|
.ngroups = ARRAY_SIZE((g)), \
|
|
}
|
|
|
|
/**
|
|
* struct intel_pinctrl_soc_data - Intel pin controller per-SoC configuration
|
|
* @uid: ACPI _UID for the probe driver use if needed
|
|
* @pins: Array if pins this pinctrl controls
|
|
* @npins: Number of pins in the array
|
|
* @groups: Array of pin groups
|
|
* @ngroups: Number of groups in the array
|
|
* @functions: Array of functions
|
|
* @nfunctions: Number of functions in the array
|
|
* @communities: Array of communities this pinctrl handles
|
|
* @ncommunities: Number of communities in the array
|
|
*
|
|
* The @communities is used as a template by the core driver. It will make
|
|
* copy of all communities and fill in rest of the information.
|
|
*/
|
|
struct intel_pinctrl_soc_data {
|
|
const char *uid;
|
|
const struct pinctrl_pin_desc *pins;
|
|
size_t npins;
|
|
const struct intel_pingroup *groups;
|
|
size_t ngroups;
|
|
const struct intel_function *functions;
|
|
size_t nfunctions;
|
|
const struct intel_community *communities;
|
|
size_t ncommunities;
|
|
};
|
|
|
|
int intel_pinctrl_probe(struct platform_device *pdev,
|
|
const struct intel_pinctrl_soc_data *soc_data);
|
|
int intel_pinctrl_remove(struct platform_device *pdev);
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
int intel_pinctrl_suspend(struct device *dev);
|
|
int intel_pinctrl_resume(struct device *dev);
|
|
#endif
|
|
|
|
#endif /* PINCTRL_INTEL_H */
|