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Release 4.7 drivers/pinctrl/spear/pinctrl-spear.h

/*
 * Driver header file for the ST Microelectronics SPEAr pinmux
 *
 * Copyright (C) 2012 ST Microelectronics
 * Viresh Kumar <vireshk@kernel.org>
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2. This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */

#ifndef __PINMUX_SPEAR_H__

#define __PINMUX_SPEAR_H__

#include <linux/gpio.h>
#include <linux/io.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/types.h>

struct platform_device;
struct device;
struct spear_pmx;

/**
 * struct spear_pmx_mode - SPEAr pmx mode
 * @name: name of pmx mode
 * @mode: mode id
 * @reg: register for configuring this mode
 * @mask: mask of this mode in reg
 * @val: val to be configured at reg after doing (val & mask)
 */

struct spear_pmx_mode {
	
const char *const name;
	
u16 mode;
	
u16 reg;
	
u16 mask;
	
u32 val;
};

/**
 * struct spear_muxreg - SPEAr mux reg configuration
 * @reg: register offset
 * @mask: mask bits
 * @val: val to be written on mask bits
 */

struct spear_muxreg {
	
u16 reg;
	
u32 mask;
	
u32 val;
};


struct spear_gpio_pingroup {
	
const unsigned *pins;
	
unsigned npins;
	
struct spear_muxreg *muxregs;
	
u8 nmuxregs;
};

/* ste: set to enable */

#define DEFINE_MUXREG(__pins, __muxreg, __mask, __ste)		\
static struct spear_muxreg __pins##_muxregs[] = {               \
        {                                                       \
                .reg = __muxreg,                                \
                .mask = __mask,                                 \
                .val = __ste ? __mask : 0,                      \
        },                                                      \
}


#define DEFINE_2_MUXREG(__pins, __muxreg1, __muxreg2, __mask, __ste1, __ste2) \
static struct spear_muxreg __pins##_muxregs[] = {               \
        {                                                       \
                .reg = __muxreg1,                               \
                .mask = __mask,                                 \
                .val = __ste1 ? __mask : 0,                     \
        }, {                                                    \
                .reg = __muxreg2,                               \
                .mask = __mask,                                 \
                .val = __ste2 ? __mask : 0,                     \
        },                                                      \
}


#define GPIO_PINGROUP(__pins)					\
	{                                                       \
                .pins = __pins,                                 \
                .npins = ARRAY_SIZE(__pins),                    \
                .muxregs = __pins##_muxregs,                    \
                .nmuxregs = ARRAY_SIZE(__pins##_muxregs),       \
        }

/**
 * struct spear_modemux - SPEAr mode mux configuration
 * @modes: mode ids supported by this group of muxregs
 * @nmuxregs: number of muxreg configurations to be done for modes
 * @muxregs: array of muxreg configurations to be done for modes
 */

struct spear_modemux {
	
u16 modes;
	
u8 nmuxregs;
	
struct spear_muxreg *muxregs;
};

/**
 * struct spear_pingroup - SPEAr pin group configurations
 * @name: name of pin group
 * @pins: array containing pin numbers
 * @npins: size of pins array
 * @modemuxs: array of modemux configurations for this pin group
 * @nmodemuxs: size of array modemuxs
 *
 * A representation of a group of pins in the SPEAr pin controller. Each group
 * allows some parameter or parameters to be configured.
 */

struct spear_pingroup {
	
const char *name;
	
const unsigned *pins;
	
unsigned npins;
	
struct spear_modemux *modemuxs;
	
unsigned nmodemuxs;
};

/**
 * struct spear_function - SPEAr pinctrl mux function
 * @name: The name of the function, exported to pinctrl core.
 * @groups: An array of pin groups that may select this function.
 * @ngroups: The number of entries in @groups.
 */

struct spear_function {
	
const char *name;
	
const char *const *groups;
	
unsigned ngroups;
};

/**
 * struct spear_pinctrl_machdata - SPEAr pin controller machine driver
 *      configuration
 * @pins: An array describing all pins the pin controller affects.
 *      All pins which are also GPIOs must be listed first within the *array,
 *      and be numbered identically to the GPIO controller's *numbering.
 * @npins: The numbmer of entries in @pins.
 * @functions: An array describing all mux functions the SoC supports.
 * @nfunctions: The numbmer of entries in @functions.
 * @groups: An array describing all pin groups the pin SoC supports.
 * @ngroups: The numbmer of entries in @groups.
 * @gpio_pingroups: gpio pingroups
 * @ngpio_pingroups: gpio pingroups count
 *
 * @modes_supported: Does SoC support modes
 * @mode: mode configured from probe
 * @pmx_modes: array of modes supported by SoC
 * @npmx_modes: number of entries in pmx_modes.
 */

struct spear_pinctrl_machdata {
	
const struct pinctrl_pin_desc *pins;
	
unsigned npins;
	
struct spear_function **functions;
	
unsigned nfunctions;
	
struct spear_pingroup **groups;
	
unsigned ngroups;
	
struct spear_gpio_pingroup *gpio_pingroups;
	
void (*gpio_request_endisable)(struct spear_pmx *pmx, int offset,
			bool enable);
	
unsigned ngpio_pingroups;

	
bool modes_supported;
	
u16 mode;
	
struct spear_pmx_mode **pmx_modes;
	
unsigned npmx_modes;
};

/**
 * struct spear_pmx - SPEAr pinctrl mux
 * @dev: pointer to struct dev of platform_device registered
 * @pctl: pointer to struct pinctrl_dev
 * @machdata: pointer to SoC or machine specific structure
 * @vbase: virtual base address of pinmux controller
 */

struct spear_pmx {
	
struct device *dev;
	
struct pinctrl_dev *pctl;
	
struct spear_pinctrl_machdata *machdata;
	
void __iomem *vbase;
};

/* exported routines */

static inline u32 pmx_readl(struct spear_pmx *pmx, u32 reg) { return readl_relaxed(pmx->vbase + reg); }

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static inline void pmx_writel(struct spear_pmx *pmx, u32 val, u32 reg) { writel_relaxed(val, pmx->vbase + reg); }

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void pmx_init_addr(struct spear_pinctrl_machdata *machdata, u16 reg); void pmx_init_gpio_pingroup_addr(struct spear_gpio_pingroup *gpio_pingroup, unsigned count, u16 reg); int spear_pinctrl_probe(struct platform_device *pdev, struct spear_pinctrl_machdata *machdata); #define SPEAR_PIN_0_TO_101 \ PINCTRL_PIN(0, "PLGPIO0"), \ PINCTRL_PIN(1, "PLGPIO1"), \ PINCTRL_PIN(2, "PLGPIO2"), \ PINCTRL_PIN(3, "PLGPIO3"), \ PINCTRL_PIN(4, "PLGPIO4"), \ PINCTRL_PIN(5, "PLGPIO5"), \ PINCTRL_PIN(6, "PLGPIO6"), \ PINCTRL_PIN(7, "PLGPIO7"), \ PINCTRL_PIN(8, "PLGPIO8"), \ PINCTRL_PIN(9, "PLGPIO9"), \ PINCTRL_PIN(10, "PLGPIO10"), \ PINCTRL_PIN(11, "PLGPIO11"), \ PINCTRL_PIN(12, "PLGPIO12"), \ PINCTRL_PIN(13, "PLGPIO13"), \ PINCTRL_PIN(14, "PLGPIO14"), \ PINCTRL_PIN(15, "PLGPIO15"), \ PINCTRL_PIN(16, "PLGPIO16"), \ PINCTRL_PIN(17, "PLGPIO17"), \ PINCTRL_PIN(18, "PLGPIO18"), \ PINCTRL_PIN(19, "PLGPIO19"), \ PINCTRL_PIN(20, "PLGPIO20"), \ PINCTRL_PIN(21, "PLGPIO21"), \ PINCTRL_PIN(22, "PLGPIO22"), \ PINCTRL_PIN(23, "PLGPIO23"), \ PINCTRL_PIN(24, "PLGPIO24"), \ PINCTRL_PIN(25, "PLGPIO25"), \ PINCTRL_PIN(26, "PLGPIO26"), \ PINCTRL_PIN(27, "PLGPIO27"), \ PINCTRL_PIN(28, "PLGPIO28"), \ PINCTRL_PIN(29, "PLGPIO29"), \ PINCTRL_PIN(30, "PLGPIO30"), \ PINCTRL_PIN(31, "PLGPIO31"), \ PINCTRL_PIN(32, "PLGPIO32"), \ PINCTRL_PIN(33, "PLGPIO33"), \ PINCTRL_PIN(34, "PLGPIO34"), \ PINCTRL_PIN(35, "PLGPIO35"), \ PINCTRL_PIN(36, "PLGPIO36"), \ PINCTRL_PIN(37, "PLGPIO37"), \ PINCTRL_PIN(38, "PLGPIO38"), \ PINCTRL_PIN(39, "PLGPIO39"), \ PINCTRL_PIN(40, "PLGPIO40"), \ PINCTRL_PIN(41, "PLGPIO41"), \ PINCTRL_PIN(42, "PLGPIO42"), \ PINCTRL_PIN(43, "PLGPIO43"), \ PINCTRL_PIN(44, "PLGPIO44"), \ PINCTRL_PIN(45, "PLGPIO45"), \ PINCTRL_PIN(46, "PLGPIO46"), \ PINCTRL_PIN(47, "PLGPIO47"), \ PINCTRL_PIN(48, "PLGPIO48"), \ PINCTRL_PIN(49, "PLGPIO49"), \ PINCTRL_PIN(50, "PLGPIO50"), \ PINCTRL_PIN(51, "PLGPIO51"), \ PINCTRL_PIN(52, "PLGPIO52"), \ PINCTRL_PIN(53, "PLGPIO53"), \ PINCTRL_PIN(54, "PLGPIO54"), \ PINCTRL_PIN(55, "PLGPIO55"), \ PINCTRL_PIN(56, "PLGPIO56"), \ PINCTRL_PIN(57, "PLGPIO57"), \ PINCTRL_PIN(58, "PLGPIO58"), \ PINCTRL_PIN(59, "PLGPIO59"), \ PINCTRL_PIN(60, "PLGPIO60"), \ PINCTRL_PIN(61, "PLGPIO61"), \ PINCTRL_PIN(62, "PLGPIO62"), \ PINCTRL_PIN(63, "PLGPIO63"), \ PINCTRL_PIN(64, "PLGPIO64"), \ PINCTRL_PIN(65, "PLGPIO65"), \ PINCTRL_PIN(66, "PLGPIO66"), \ PINCTRL_PIN(67, "PLGPIO67"), \ PINCTRL_PIN(68, "PLGPIO68"), \ PINCTRL_PIN(69, "PLGPIO69"), \ PINCTRL_PIN(70, "PLGPIO70"), \ PINCTRL_PIN(71, "PLGPIO71"), \ PINCTRL_PIN(72, "PLGPIO72"), \ PINCTRL_PIN(73, "PLGPIO73"), \ PINCTRL_PIN(74, "PLGPIO74"), \ PINCTRL_PIN(75, "PLGPIO75"), \ PINCTRL_PIN(76, "PLGPIO76"), \ PINCTRL_PIN(77, "PLGPIO77"), \ PINCTRL_PIN(78, "PLGPIO78"), \ PINCTRL_PIN(79, "PLGPIO79"), \ PINCTRL_PIN(80, "PLGPIO80"), \ PINCTRL_PIN(81, "PLGPIO81"), \ PINCTRL_PIN(82, "PLGPIO82"), \ PINCTRL_PIN(83, "PLGPIO83"), \ PINCTRL_PIN(84, "PLGPIO84"), \ PINCTRL_PIN(85, "PLGPIO85"), \ PINCTRL_PIN(86, "PLGPIO86"), \ PINCTRL_PIN(87, "PLGPIO87"), \ PINCTRL_PIN(88, "PLGPIO88"), \ PINCTRL_PIN(89, "PLGPIO89"), \ PINCTRL_PIN(90, "PLGPIO90"), \ PINCTRL_PIN(91, "PLGPIO91"), \ PINCTRL_PIN(92, "PLGPIO92"), \ PINCTRL_PIN(93, "PLGPIO93"), \ PINCTRL_PIN(94, "PLGPIO94"), \ PINCTRL_PIN(95, "PLGPIO95"), \ PINCTRL_PIN(96, "PLGPIO96"), \ PINCTRL_PIN(97, "PLGPIO97"), \ PINCTRL_PIN(98, "PLGPIO98"), \ PINCTRL_PIN(99, "PLGPIO99"), \ PINCTRL_PIN(100, "PLGPIO100"), \ PINCTRL_PIN(101, "PLGPIO101") #define SPEAR_PIN_102_TO_245 \ PINCTRL_PIN(102, "PLGPIO102"), \ PINCTRL_PIN(103, "PLGPIO103"), \ PINCTRL_PIN(104, "PLGPIO104"), \ PINCTRL_PIN(105, "PLGPIO105"), \ PINCTRL_PIN(106, "PLGPIO106"), \ PINCTRL_PIN(107, "PLGPIO107"), \ PINCTRL_PIN(108, "PLGPIO108"), \ PINCTRL_PIN(109, "PLGPIO109"), \ PINCTRL_PIN(110, "PLGPIO110"), \ PINCTRL_PIN(111, "PLGPIO111"), \ PINCTRL_PIN(112, "PLGPIO112"), \ PINCTRL_PIN(113, "PLGPIO113"), \ PINCTRL_PIN(114, "PLGPIO114"), \ PINCTRL_PIN(115, "PLGPIO115"), \ PINCTRL_PIN(116, "PLGPIO116"), \ PINCTRL_PIN(117, "PLGPIO117"), \ PINCTRL_PIN(118, "PLGPIO118"), \ PINCTRL_PIN(119, "PLGPIO119"), \ PINCTRL_PIN(120, "PLGPIO120"), \ PINCTRL_PIN(121, "PLGPIO121"), \ PINCTRL_PIN(122, "PLGPIO122"), \ PINCTRL_PIN(123, "PLGPIO123"), \ PINCTRL_PIN(124, "PLGPIO124"), \ PINCTRL_PIN(125, "PLGPIO125"), \ PINCTRL_PIN(126, "PLGPIO126"), \ PINCTRL_PIN(127, "PLGPIO127"), \ PINCTRL_PIN(128, "PLGPIO128"), \ PINCTRL_PIN(129, "PLGPIO129"), \ PINCTRL_PIN(130, "PLGPIO130"), \ PINCTRL_PIN(131, "PLGPIO131"), \ PINCTRL_PIN(132, "PLGPIO132"), \ PINCTRL_PIN(133, "PLGPIO133"), \ PINCTRL_PIN(134, "PLGPIO134"), \ PINCTRL_PIN(135, "PLGPIO135"), \ PINCTRL_PIN(136, "PLGPIO136"), \ PINCTRL_PIN(137, "PLGPIO137"), \ PINCTRL_PIN(138, "PLGPIO138"), \ PINCTRL_PIN(139, "PLGPIO139"), \ PINCTRL_PIN(140, "PLGPIO140"), \ PINCTRL_PIN(141, "PLGPIO141"), \ PINCTRL_PIN(142, "PLGPIO142"), \ PINCTRL_PIN(143, "PLGPIO143"), \ PINCTRL_PIN(144, "PLGPIO144"), \ PINCTRL_PIN(145, "PLGPIO145"), \ PINCTRL_PIN(146, "PLGPIO146"), \ PINCTRL_PIN(147, "PLGPIO147"), \ PINCTRL_PIN(148, "PLGPIO148"), \ PINCTRL_PIN(149, "PLGPIO149"), \ PINCTRL_PIN(150, "PLGPIO150"), \ PINCTRL_PIN(151, "PLGPIO151"), \ PINCTRL_PIN(152, "PLGPIO152"), \ PINCTRL_PIN(153, "PLGPIO153"), \ PINCTRL_PIN(154, "PLGPIO154"), \ PINCTRL_PIN(155, "PLGPIO155"), \ PINCTRL_PIN(156, "PLGPIO156"), \ PINCTRL_PIN(157, "PLGPIO157"), \ PINCTRL_PIN(158, "PLGPIO158"), \ PINCTRL_PIN(159, "PLGPIO159"), \ PINCTRL_PIN(160, "PLGPIO160"), \ PINCTRL_PIN(161, "PLGPIO161"), \ PINCTRL_PIN(162, "PLGPIO162"), \ PINCTRL_PIN(163, "PLGPIO163"), \ PINCTRL_PIN(164, "PLGPIO164"), \ PINCTRL_PIN(165, "PLGPIO165"), \ PINCTRL_PIN(166, "PLGPIO166"), \ PINCTRL_PIN(167, "PLGPIO167"), \ PINCTRL_PIN(168, "PLGPIO168"), \ PINCTRL_PIN(169, "PLGPIO169"), \ PINCTRL_PIN(170, "PLGPIO170"), \ PINCTRL_PIN(171, "PLGPIO171"), \ PINCTRL_PIN(172, "PLGPIO172"), \ PINCTRL_PIN(173, "PLGPIO173"), \ PINCTRL_PIN(174, "PLGPIO174"), \ PINCTRL_PIN(175, "PLGPIO175"), \ PINCTRL_PIN(176, "PLGPIO176"), \ PINCTRL_PIN(177, "PLGPIO177"), \ PINCTRL_PIN(178, "PLGPIO178"), \ PINCTRL_PIN(179, "PLGPIO179"), \ PINCTRL_PIN(180, "PLGPIO180"), \ PINCTRL_PIN(181, "PLGPIO181"), \ PINCTRL_PIN(182, "PLGPIO182"), \ PINCTRL_PIN(183, "PLGPIO183"), \ PINCTRL_PIN(184, "PLGPIO184"), \ PINCTRL_PIN(185, "PLGPIO185"), \ PINCTRL_PIN(186, "PLGPIO186"), \ PINCTRL_PIN(187, "PLGPIO187"), \ PINCTRL_PIN(188, "PLGPIO188"), \ PINCTRL_PIN(189, "PLGPIO189"), \ PINCTRL_PIN(190, "PLGPIO190"), \ PINCTRL_PIN(191, "PLGPIO191"), \ PINCTRL_PIN(192, "PLGPIO192"), \ PINCTRL_PIN(193, "PLGPIO193"), \ PINCTRL_PIN(194, "PLGPIO194"), \ PINCTRL_PIN(195, "PLGPIO195"), \ PINCTRL_PIN(196, "PLGPIO196"), \ PINCTRL_PIN(197, "PLGPIO197"), \ PINCTRL_PIN(198, "PLGPIO198"), \ PINCTRL_PIN(199, "PLGPIO199"), \ PINCTRL_PIN(200, "PLGPIO200"), \ PINCTRL_PIN(201, "PLGPIO201"), \ PINCTRL_PIN(202, "PLGPIO202"), \ PINCTRL_PIN(203, "PLGPIO203"), \ PINCTRL_PIN(204, "PLGPIO204"), \ PINCTRL_PIN(205, "PLGPIO205"), \ PINCTRL_PIN(206, "PLGPIO206"), \ PINCTRL_PIN(207, "PLGPIO207"), \ PINCTRL_PIN(208, "PLGPIO208"), \ PINCTRL_PIN(209, "PLGPIO209"), \ PINCTRL_PIN(210, "PLGPIO210"), \ PINCTRL_PIN(211, "PLGPIO211"), \ PINCTRL_PIN(212, "PLGPIO212"), \ PINCTRL_PIN(213, "PLGPIO213"), \ PINCTRL_PIN(214, "PLGPIO214"), \ PINCTRL_PIN(215, "PLGPIO215"), \ PINCTRL_PIN(216, "PLGPIO216"), \ PINCTRL_PIN(217, "PLGPIO217"), \ PINCTRL_PIN(218, "PLGPIO218"), \ PINCTRL_PIN(219, "PLGPIO219"), \ PINCTRL_PIN(220, "PLGPIO220"), \ PINCTRL_PIN(221, "PLGPIO221"), \ PINCTRL_PIN(222, "PLGPIO222"), \ PINCTRL_PIN(223, "PLGPIO223"), \ PINCTRL_PIN(224, "PLGPIO224"), \ PINCTRL_PIN(225, "PLGPIO225"), \ PINCTRL_PIN(226, "PLGPIO226"), \ PINCTRL_PIN(227, "PLGPIO227"), \ PINCTRL_PIN(228, "PLGPIO228"), \ PINCTRL_PIN(229, "PLGPIO229"), \ PINCTRL_PIN(230, "PLGPIO230"), \ PINCTRL_PIN(231, "PLGPIO231"), \ PINCTRL_PIN(232, "PLGPIO232"), \ PINCTRL_PIN(233, "PLGPIO233"), \ PINCTRL_PIN(234, "PLGPIO234"), \ PINCTRL_PIN(235, "PLGPIO235"), \ PINCTRL_PIN(236, "PLGPIO236"), \ PINCTRL_PIN(237, "PLGPIO237"), \ PINCTRL_PIN(238, "PLGPIO238"), \ PINCTRL_PIN(239, "PLGPIO239"), \ PINCTRL_PIN(240, "PLGPIO240"), \ PINCTRL_PIN(241, "PLGPIO241"), \ PINCTRL_PIN(242, "PLGPIO242"), \ PINCTRL_PIN(243, "PLGPIO243"), \ PINCTRL_PIN(244, "PLGPIO244"), \ PINCTRL_PIN(245, "PLGPIO245") #endif /* __PINMUX_SPEAR_H__ */

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