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linux/drivers/pinctrl/pinctrl-ab8500.c
Lee Jones b9fab6e45d pinctrl/abx500: align GPIO cluster boundaries 
Not quite sure how this ever worked. In ab8500_gpio_to_irq() the
GPIO for conversion is passed through as the second argument. If
GPIO13, which is a valid GPIO for IRQ functionality, was received;
it would be rejected by the following guard:

    GPIO_IRQ_CLUSTER(5, 12, 0); /* GPIO numbers start from 1 */

    if (offset >= cluster->start && offset <= cluster->end)
        /* Valid GPIO for IRQ use */

Signed-off-by: Lee Jones <lee.jones@linaro.org>
[Augmented to account for off-by-one problem]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-02-06 22:38:40 +01:00

485 lines
22 KiB
C
Raw Blame History

/*
* Copyright (C) ST-Ericsson SA 2012
*
* Author: Patrice Chotard <patrice.chotard@stericsson.com> for ST-Ericsson.
*
* 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.
*/
#include <linux/kernel.h>
#include <linux/gpio.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/mfd/abx500/ab8500.h>
#include "pinctrl-abx500.h"
/* All the pins that can be used for GPIO and some other functions */
#define ABX500_GPIO(offset) (offset)
#define AB8500_PIN_T10 ABX500_GPIO(1)
#define AB8500_PIN_T9 ABX500_GPIO(2)
#define AB8500_PIN_U9 ABX500_GPIO(3)
#define AB8500_PIN_W2 ABX500_GPIO(4)
/* hole */
#define AB8500_PIN_Y18 ABX500_GPIO(6)
#define AB8500_PIN_AA20 ABX500_GPIO(7)
#define AB8500_PIN_W18 ABX500_GPIO(8)
#define AB8500_PIN_AA19 ABX500_GPIO(9)
#define AB8500_PIN_U17 ABX500_GPIO(10)
#define AB8500_PIN_AA18 ABX500_GPIO(11)
#define AB8500_PIN_U16 ABX500_GPIO(12)
#define AB8500_PIN_W17 ABX500_GPIO(13)
#define AB8500_PIN_F14 ABX500_GPIO(14)
#define AB8500_PIN_B17 ABX500_GPIO(15)
#define AB8500_PIN_F15 ABX500_GPIO(16)
#define AB8500_PIN_P5 ABX500_GPIO(17)
#define AB8500_PIN_R5 ABX500_GPIO(18)
#define AB8500_PIN_U5 ABX500_GPIO(19)
#define AB8500_PIN_T5 ABX500_GPIO(20)
#define AB8500_PIN_H19 ABX500_GPIO(21)
#define AB8500_PIN_G20 ABX500_GPIO(22)
#define AB8500_PIN_G19 ABX500_GPIO(23)
#define AB8500_PIN_T14 ABX500_GPIO(24)
#define AB8500_PIN_R16 ABX500_GPIO(25)
#define AB8500_PIN_M16 ABX500_GPIO(26)
#define AB8500_PIN_J6 ABX500_GPIO(27)
#define AB8500_PIN_K6 ABX500_GPIO(28)
#define AB8500_PIN_G6 ABX500_GPIO(29)
#define AB8500_PIN_H6 ABX500_GPIO(30)
#define AB8500_PIN_F5 ABX500_GPIO(31)
#define AB8500_PIN_G5 ABX500_GPIO(32)
/* hole */
#define AB8500_PIN_R17 ABX500_GPIO(34)
#define AB8500_PIN_W15 ABX500_GPIO(35)
#define AB8500_PIN_A17 ABX500_GPIO(36)
#define AB8500_PIN_E15 ABX500_GPIO(37)
#define AB8500_PIN_C17 ABX500_GPIO(38)
#define AB8500_PIN_E16 ABX500_GPIO(39)
#define AB8500_PIN_T19 ABX500_GPIO(40)
#define AB8500_PIN_U19 ABX500_GPIO(41)
#define AB8500_PIN_U2 ABX500_GPIO(42)
/* indicates the highest GPIO number */
#define AB8500_GPIO_MAX_NUMBER 42
/*
* The names of the pins are denoted by GPIO number and ball name, even
* though they can be used for other things than GPIO, this is the first
* column in the table of the data sheet and often used on schematics and
* such.
*/
static const struct pinctrl_pin_desc ab8500_pins[] = {
PINCTRL_PIN(AB8500_PIN_T10, "GPIO1_T10"),
PINCTRL_PIN(AB8500_PIN_T9, "GPIO2_T9"),
PINCTRL_PIN(AB8500_PIN_U9, "GPIO3_U9"),
PINCTRL_PIN(AB8500_PIN_W2, "GPIO4_W2"),
/* hole */
PINCTRL_PIN(AB8500_PIN_Y18, "GPIO6_Y18"),
PINCTRL_PIN(AB8500_PIN_AA20, "GPIO7_AA20"),
PINCTRL_PIN(AB8500_PIN_W18, "GPIO8_W18"),
PINCTRL_PIN(AB8500_PIN_AA19, "GPIO9_AA19"),
PINCTRL_PIN(AB8500_PIN_U17, "GPIO10_U17"),
PINCTRL_PIN(AB8500_PIN_AA18, "GPIO11_AA18"),
PINCTRL_PIN(AB8500_PIN_U16, "GPIO12_U16"),
PINCTRL_PIN(AB8500_PIN_W17, "GPIO13_W17"),
PINCTRL_PIN(AB8500_PIN_F14, "GPIO14_F14"),
PINCTRL_PIN(AB8500_PIN_B17, "GPIO15_B17"),
PINCTRL_PIN(AB8500_PIN_F15, "GPIO16_F15"),
PINCTRL_PIN(AB8500_PIN_P5, "GPIO17_P5"),
PINCTRL_PIN(AB8500_PIN_R5, "GPIO18_R5"),
PINCTRL_PIN(AB8500_PIN_U5, "GPIO19_U5"),
PINCTRL_PIN(AB8500_PIN_T5, "GPIO20_T5"),
PINCTRL_PIN(AB8500_PIN_H19, "GPIO21_H19"),
PINCTRL_PIN(AB8500_PIN_G20, "GPIO22_G20"),
PINCTRL_PIN(AB8500_PIN_G19, "GPIO23_G19"),
PINCTRL_PIN(AB8500_PIN_T14, "GPIO24_T14"),
PINCTRL_PIN(AB8500_PIN_R16, "GPIO25_R16"),
PINCTRL_PIN(AB8500_PIN_M16, "GPIO26_M16"),
PINCTRL_PIN(AB8500_PIN_J6, "GPIO27_J6"),
PINCTRL_PIN(AB8500_PIN_K6, "GPIO28_K6"),
PINCTRL_PIN(AB8500_PIN_G6, "GPIO29_G6"),
PINCTRL_PIN(AB8500_PIN_H6, "GPIO30_H6"),
PINCTRL_PIN(AB8500_PIN_F5, "GPIO31_F5"),
PINCTRL_PIN(AB8500_PIN_G5, "GPIO32_G5"),
/* hole */
PINCTRL_PIN(AB8500_PIN_R17, "GPIO34_R17"),
PINCTRL_PIN(AB8500_PIN_W15, "GPIO35_W15"),
PINCTRL_PIN(AB8500_PIN_A17, "GPIO36_A17"),
PINCTRL_PIN(AB8500_PIN_E15, "GPIO37_E15"),
PINCTRL_PIN(AB8500_PIN_C17, "GPIO38_C17"),
PINCTRL_PIN(AB8500_PIN_E16, "GPIO39_E16"),
PINCTRL_PIN(AB8500_PIN_T19, "GPIO40_T19"),
PINCTRL_PIN(AB8500_PIN_U19, "GPIO41_U19"),
PINCTRL_PIN(AB8500_PIN_U2, "GPIO42_U2"),
};
/*
* Maps local GPIO offsets to local pin numbers
*/
static const struct abx500_pinrange ab8500_pinranges[] = {
ABX500_PINRANGE(1, 4, ABX500_ALT_A),
ABX500_PINRANGE(6, 4, ABX500_ALT_A),
ABX500_PINRANGE(10, 4, ABX500_DEFAULT),
ABX500_PINRANGE(14, 12, ABX500_ALT_A),
ABX500_PINRANGE(26, 1, ABX500_DEFAULT),
ABX500_PINRANGE(27, 6, ABX500_ALT_A),
ABX500_PINRANGE(34, 1, ABX500_ALT_A),
ABX500_PINRANGE(35, 1, ABX500_DEFAULT),
ABX500_PINRANGE(36, 7, ABX500_ALT_A),
};
/*
* Read the pin group names like this:
* sysclkreq2_d_1 = first groups of pins for sysclkreq2 on default function
*
* The groups are arranged as sets per altfunction column, so we can
* mux in one group at a time by selecting the same altfunction for them
* all. When functions require pins on different altfunctions, you need
* to combine several groups.
*/
/* default column */
static const unsigned sysclkreq2_d_1_pins[] = { AB8500_PIN_T10 };
static const unsigned sysclkreq3_d_1_pins[] = { AB8500_PIN_T9 };
static const unsigned sysclkreq4_d_1_pins[] = { AB8500_PIN_U9 };
static const unsigned sysclkreq6_d_1_pins[] = { AB8500_PIN_W2 };
static const unsigned ycbcr0123_d_1_pins[] = { AB8500_PIN_Y18, AB8500_PIN_AA20,
AB8500_PIN_W18, AB8500_PIN_AA19};
static const unsigned gpio10_d_1_pins[] = { AB8500_PIN_U17 };
static const unsigned gpio11_d_1_pins[] = { AB8500_PIN_AA18 };
static const unsigned gpio12_d_1_pins[] = { AB8500_PIN_U16 };
static const unsigned gpio13_d_1_pins[] = { AB8500_PIN_W17 };
static const unsigned pwmout1_d_1_pins[] = { AB8500_PIN_F14 };
static const unsigned pwmout2_d_1_pins[] = { AB8500_PIN_B17 };
static const unsigned pwmout3_d_1_pins[] = { AB8500_PIN_F15 };
/* audio data interface 1*/
static const unsigned adi1_d_1_pins[] = { AB8500_PIN_P5, AB8500_PIN_R5,
AB8500_PIN_U5, AB8500_PIN_T5 };
/* USBUICC */
static const unsigned usbuicc_d_1_pins[] = { AB8500_PIN_H19, AB8500_PIN_G20,
AB8500_PIN_G19 };
static const unsigned sysclkreq7_d_1_pins[] = { AB8500_PIN_T14 };
static const unsigned sysclkreq8_d_1_pins[] = { AB8500_PIN_R16 };
static const unsigned gpio26_d_1_pins[] = { AB8500_PIN_M16 };
/* Digital microphone 1 and 2 */
static const unsigned dmic12_d_1_pins[] = { AB8500_PIN_J6, AB8500_PIN_K6 };
/* Digital microphone 3 and 4 */
static const unsigned dmic34_d_1_pins[] = { AB8500_PIN_G6, AB8500_PIN_H6 };
/* Digital microphone 5 and 6 */
static const unsigned dmic56_d_1_pins[] = { AB8500_PIN_F5, AB8500_PIN_G5 };
static const unsigned extcpena_d_1_pins[] = { AB8500_PIN_R17 };
static const unsigned gpio35_d_1_pins[] = { AB8500_PIN_W15 };
/* APE SPI */
static const unsigned apespi_d_1_pins[] = { AB8500_PIN_A17, AB8500_PIN_E15,
AB8500_PIN_C17, AB8500_PIN_E16};
/* modem SDA/SCL */
static const unsigned modsclsda_d_1_pins[] = { AB8500_PIN_T19, AB8500_PIN_U19 };
static const unsigned sysclkreq5_d_1_pins[] = { AB8500_PIN_U2 };
/* Altfunction A column */
static const unsigned gpio1_a_1_pins[] = { AB8500_PIN_T10 };
static const unsigned gpio2_a_1_pins[] = { AB8500_PIN_T9 };
static const unsigned gpio3_a_1_pins[] = { AB8500_PIN_U9 };
static const unsigned gpio4_a_1_pins[] = { AB8500_PIN_W2 };
static const unsigned gpio6_a_1_pins[] = { AB8500_PIN_Y18 };
static const unsigned gpio7_a_1_pins[] = { AB8500_PIN_AA20 };
static const unsigned gpio8_a_1_pins[] = { AB8500_PIN_W18 };
static const unsigned gpio9_a_1_pins[] = { AB8500_PIN_AA19 };
/* YCbCr4 YCbCr5 YCbCr6 YCbCr7*/
static const unsigned ycbcr4567_a_1_pins[] = { AB8500_PIN_U17, AB8500_PIN_AA18,
AB8500_PIN_U16, AB8500_PIN_W17};
static const unsigned gpio14_a_1_pins[] = { AB8500_PIN_F14 };
static const unsigned gpio15_a_1_pins[] = { AB8500_PIN_B17 };
static const unsigned gpio16_a_1_pins[] = { AB8500_PIN_F15 };
static const unsigned gpio17_a_1_pins[] = { AB8500_PIN_P5 };
static const unsigned gpio18_a_1_pins[] = { AB8500_PIN_R5 };
static const unsigned gpio19_a_1_pins[] = { AB8500_PIN_U5 };
static const unsigned gpio20_a_1_pins[] = { AB8500_PIN_T5 };
static const unsigned gpio21_a_1_pins[] = { AB8500_PIN_H19 };
static const unsigned gpio22_a_1_pins[] = { AB8500_PIN_G20 };
static const unsigned gpio23_a_1_pins[] = { AB8500_PIN_G19 };
static const unsigned gpio24_a_1_pins[] = { AB8500_PIN_T14 };
static const unsigned gpio25_a_1_pins[] = { AB8500_PIN_R16 };
static const unsigned gpio27_a_1_pins[] = { AB8500_PIN_J6 };
static const unsigned gpio28_a_1_pins[] = { AB8500_PIN_K6 };
static const unsigned gpio29_a_1_pins[] = { AB8500_PIN_G6 };
static const unsigned gpio30_a_1_pins[] = { AB8500_PIN_H6 };
static const unsigned gpio31_a_1_pins[] = { AB8500_PIN_F5 };
static const unsigned gpio32_a_1_pins[] = { AB8500_PIN_G5 };
static const unsigned gpio34_a_1_pins[] = { AB8500_PIN_R17 };
static const unsigned gpio36_a_1_pins[] = { AB8500_PIN_A17 };
static const unsigned gpio37_a_1_pins[] = { AB8500_PIN_E15 };
static const unsigned gpio38_a_1_pins[] = { AB8500_PIN_C17 };
static const unsigned gpio39_a_1_pins[] = { AB8500_PIN_E16 };
static const unsigned gpio40_a_1_pins[] = { AB8500_PIN_T19 };
static const unsigned gpio41_a_1_pins[] = { AB8500_PIN_U19 };
static const unsigned gpio42_a_1_pins[] = { AB8500_PIN_U2 };
/* Altfunction B colum */
static const unsigned hiqclkena_b_1_pins[] = { AB8500_PIN_U17 };
static const unsigned usbuiccpd_b_1_pins[] = { AB8500_PIN_AA18 };
static const unsigned i2ctrig1_b_1_pins[] = { AB8500_PIN_U16 };
static const unsigned i2ctrig2_b_1_pins[] = { AB8500_PIN_W17 };
/* Altfunction C column */
static const unsigned usbvdat_c_1_pins[] = { AB8500_PIN_W17 };
#define AB8500_PIN_GROUP(a, b) { .name = #a, .pins = a##_pins, \
.npins = ARRAY_SIZE(a##_pins), .altsetting = b }
static const struct abx500_pingroup ab8500_groups[] = {
/* default column */
AB8500_PIN_GROUP(sysclkreq2_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(sysclkreq3_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(sysclkreq4_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(sysclkreq6_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(ycbcr0123_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(gpio10_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(gpio11_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(gpio12_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(gpio13_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(pwmout1_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(pwmout2_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(pwmout3_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(adi1_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(usbuicc_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(sysclkreq7_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(sysclkreq8_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(gpio26_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(dmic12_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(dmic34_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(dmic56_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(extcpena_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(gpio35_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(apespi_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(modsclsda_d_1, ABX500_DEFAULT),
AB8500_PIN_GROUP(sysclkreq5_d_1, ABX500_DEFAULT),
/* Altfunction A column */
AB8500_PIN_GROUP(gpio1_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio2_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio3_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio4_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio6_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio7_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio8_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio9_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(ycbcr4567_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio14_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio15_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio16_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio17_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio18_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio19_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio20_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio21_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio22_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio23_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio24_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio25_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio27_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio28_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio29_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio30_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio31_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio32_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio34_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio36_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio37_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio38_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio39_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio40_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio41_a_1, ABX500_ALT_A),
AB8500_PIN_GROUP(gpio42_a_1, ABX500_ALT_A),
/* Altfunction B column */
AB8500_PIN_GROUP(hiqclkena_b_1, ABX500_ALT_B),
AB8500_PIN_GROUP(usbuiccpd_b_1, ABX500_ALT_B),
AB8500_PIN_GROUP(i2ctrig1_b_1, ABX500_ALT_B),
AB8500_PIN_GROUP(i2ctrig2_b_1, ABX500_ALT_B),
/* Altfunction C column */
AB8500_PIN_GROUP(usbvdat_c_1, ABX500_ALT_C),
};
/* We use this macro to define the groups applicable to a function */
#define AB8500_FUNC_GROUPS(a, b...) \
static const char * const a##_groups[] = { b };
AB8500_FUNC_GROUPS(sysclkreq, "sysclkreq2_d_1", "sysclkreq3_d_1",
"sysclkreq4_d_1", "sysclkreq5_d_1", "sysclkreq6_d_1",
"sysclkreq7_d_1", "sysclkreq8_d_1");
AB8500_FUNC_GROUPS(ycbcr, "ycbcr0123_d_1", "ycbcr4567_a_1");
AB8500_FUNC_GROUPS(gpio, "gpio1_a_1", "gpio2_a_1", "gpio3_a_1", "gpio4_a_1",
"gpio6_a_1", "gpio7_a_1", "gpio8_a_1", "gpio9_a_1",
"gpio10_d_1", "gpio11_d_1", "gpio12_d_1", "gpio13_d_1",
"gpio14_a_1", "gpio15_a_1", "gpio16_a_1", "gpio17_a_1",
"gpio18_a_1", "gpio19_a_1", "gpio20_a_1", "gpio21_a_1",
"gpio22_a_1", "gpio23_a_1", "gpio24_a_1", "gpio25_a_1",
"gpio26_d_1", "gpio27_a_1", "gpio28_a_1", "gpio29_a_1",
"gpio30_a_1", "gpio31_a_1", "gpio32_a_1", "gpio34_a_1",
"gpio35_d_1", "gpio36_a_1", "gpio37_a_1", "gpio38_a_1",
"gpio39_a_1", "gpio40_a_1", "gpio41_a_1", "gpio42_a_1");
AB8500_FUNC_GROUPS(pwmout, "pwmout1_d_1", "pwmout2_d_1", "pwmout3_d_1");
AB8500_FUNC_GROUPS(adi1, "adi1_d_1");
AB8500_FUNC_GROUPS(usbuicc, "usbuicc_d_1", "usbuiccpd_b_1");
AB8500_FUNC_GROUPS(dmic, "dmic12_d_1", "dmic34_d_1", "dmic56_d_1");
AB8500_FUNC_GROUPS(extcpena, "extcpena_d_1");
AB8500_FUNC_GROUPS(apespi, "apespi_d_1");
AB8500_FUNC_GROUPS(modsclsda, "modsclsda_d_1");
AB8500_FUNC_GROUPS(hiqclkena, "hiqclkena_b_1");
AB8500_FUNC_GROUPS(i2ctrig, "i2ctrig1_b_1", "i2ctrig2_b_1");
AB8500_FUNC_GROUPS(usbvdat, "usbvdat_c_1");
#define FUNCTION(fname) \
{ \
.name = #fname, \
.groups = fname##_groups, \
.ngroups = ARRAY_SIZE(fname##_groups), \
}
static const struct abx500_function ab8500_functions[] = {
FUNCTION(sysclkreq),
FUNCTION(ycbcr),
FUNCTION(gpio),
FUNCTION(pwmout),
FUNCTION(adi1),
FUNCTION(usbuicc),
FUNCTION(dmic),
FUNCTION(extcpena),
FUNCTION(apespi),
FUNCTION(modsclsda),
FUNCTION(hiqclkena),
FUNCTION(i2ctrig),
FUNCTION(usbvdat),
};
/*
* this table translates what's is in the AB8500 specification regarding the
* balls alternate functions (as for DB, default, ALT_A, ALT_B and ALT_C).
* ALTERNATE_FUNCTIONS(GPIO_NUMBER, GPIOSEL bit, ALTERNATFUNC bit1,
* ALTERNATEFUNC bit2, ALTA val, ALTB val, ALTC val),
*
* example :
*
* ALTERNATE_FUNCTIONS(13, 4, 3, 4, 0, 1 ,2),
* means that pin AB8500_PIN_W17 (pin 13) supports 4 mux (default/ALT_A,
* ALT_B and ALT_C), so GPIOSEL and ALTERNATFUNC registers are used to
* select the mux. ALTA, ALTB and ALTC val indicates values to write in
* ALTERNATFUNC register. We need to specifies these values as SOC
* designers didn't apply the same logic on how to select mux in the
* ABx500 family.
*
* As this pins supports at least ALT_B mux, default mux is
* selected by writing 1 in GPIOSEL bit :
*
* | GPIOSEL bit=4 | alternatfunc bit2=4 | alternatfunc bit1=3
* default | 1 | 0 | 0
* alt_A | 0 | 0 | 0
* alt_B | 0 | 0 | 1
* alt_C | 0 | 1 | 0
*
* ALTERNATE_FUNCTIONS(8, 7, UNUSED, UNUSED),
* means that pin AB8500_PIN_W18 (pin 8) supports 2 mux, so only GPIOSEL
* register is used to select the mux. As this pins doesn't support at
* least ALT_B mux, default mux is by writing 0 in GPIOSEL bit :
*
* | GPIOSEL bit=7 | alternatfunc bit2= | alternatfunc bit1=
* default | 0 | 0 | 0
* alt_A | 1 | 0 | 0
*/
struct alternate_functions ab8500_alternate_functions[AB8500_GPIO_MAX_NUMBER + 1] = {
ALTERNATE_FUNCTIONS(0, UNUSED, UNUSED, UNUSED, 0, 0, 0), /* no GPIO0 */
ALTERNATE_FUNCTIONS(1, 0, UNUSED, UNUSED, 0, 0, 0), /* GPIO1, altA controlled by bit 0 */
ALTERNATE_FUNCTIONS(2, 1, UNUSED, UNUSED, 0, 0, 0), /* GPIO2, altA controlled by bit 1 */
ALTERNATE_FUNCTIONS(3, 2, UNUSED, UNUSED, 0, 0, 0), /* GPIO3, altA controlled by bit 2*/
ALTERNATE_FUNCTIONS(4, 3, UNUSED, UNUSED, 0, 0, 0), /* GPIO4, altA controlled by bit 3*/
/* bit 4 reserved */
ALTERNATE_FUNCTIONS(5, UNUSED, UNUSED, UNUSED, 0, 0, 0), /* no GPIO5 */
ALTERNATE_FUNCTIONS(6, 5, UNUSED, UNUSED, 0, 0, 0), /* GPIO6, altA controlled by bit 5*/
ALTERNATE_FUNCTIONS(7, 6, UNUSED, UNUSED, 0, 0, 0), /* GPIO7, altA controlled by bit 6*/
ALTERNATE_FUNCTIONS(8, 7, UNUSED, UNUSED, 0, 0, 0), /* GPIO8, altA controlled by bit 7*/
ALTERNATE_FUNCTIONS(9, 0, UNUSED, UNUSED, 0, 0, 0), /* GPIO9, altA controlled by bit 0*/
ALTERNATE_FUNCTIONS(10, 1, 0, UNUSED, 0, 1, 0), /* GPIO10, altA and altB controlled by bit 0 */
ALTERNATE_FUNCTIONS(11, 2, 1, UNUSED, 0, 1, 0), /* GPIO11, altA and altB controlled by bit 1 */
ALTERNATE_FUNCTIONS(12, 3, 2, UNUSED, 0, 1, 0), /* GPIO12, altA and altB controlled by bit 2 */
ALTERNATE_FUNCTIONS(13, 4, 3, 4, 0, 1, 2), /* GPIO13, altA altB and altC controlled by bit 3 and 4 */
ALTERNATE_FUNCTIONS(14, 5, UNUSED, UNUSED, 0, 0, 0), /* GPIO14, altA controlled by bit 5 */
ALTERNATE_FUNCTIONS(15, 6, UNUSED, UNUSED, 0, 0, 0), /* GPIO15, altA controlled by bit 6 */
ALTERNATE_FUNCTIONS(16, 7, UNUSED, UNUSED, 0, 0, 0), /* GPIO16, altA controlled by bit 7 */
/*
* pins 17 to 20 are special case, only bit 0 is used to select
* alternate function for these 4 pins.
* bits 1 to 3 are reserved
*/
ALTERNATE_FUNCTIONS(17, 0, UNUSED, UNUSED, 0, 0, 0), /* GPIO17, altA controlled by bit 0 */
ALTERNATE_FUNCTIONS(18, 0, UNUSED, UNUSED, 0, 0, 0), /* GPIO18, altA controlled by bit 0 */
ALTERNATE_FUNCTIONS(19, 0, UNUSED, UNUSED, 0, 0, 0), /* GPIO19, altA controlled by bit 0 */
ALTERNATE_FUNCTIONS(20, 0, UNUSED, UNUSED, 0, 0, 0), /* GPIO20, altA controlled by bit 0 */
ALTERNATE_FUNCTIONS(21, 4, UNUSED, UNUSED, 0, 0, 0), /* GPIO21, altA controlled by bit 4 */
ALTERNATE_FUNCTIONS(22, 5, UNUSED, UNUSED, 0, 0, 0), /* GPIO22, altA controlled by bit 5 */
ALTERNATE_FUNCTIONS(23, 6, UNUSED, UNUSED, 0, 0, 0), /* GPIO23, altA controlled by bit 6 */
ALTERNATE_FUNCTIONS(24, 7, UNUSED, UNUSED, 0, 0, 0), /* GPIO24, altA controlled by bit 7 */
ALTERNATE_FUNCTIONS(25, 0, UNUSED, UNUSED, 0, 0, 0), /* GPIO25, altA controlled by bit 0 */
/* pin 26 special case, no alternate function, bit 1 reserved */
ALTERNATE_FUNCTIONS(26, UNUSED, UNUSED, UNUSED, 0, 0, 0), /* GPIO26 */
ALTERNATE_FUNCTIONS(27, 2, UNUSED, UNUSED, 0, 0, 0), /* GPIO27, altA controlled by bit 2 */
ALTERNATE_FUNCTIONS(28, 3, UNUSED, UNUSED, 0, 0, 0), /* GPIO28, altA controlled by bit 3 */
ALTERNATE_FUNCTIONS(29, 4, UNUSED, UNUSED, 0, 0, 0), /* GPIO29, altA controlled by bit 4 */
ALTERNATE_FUNCTIONS(30, 5, UNUSED, UNUSED, 0, 0, 0), /* GPIO30, altA controlled by bit 5 */
ALTERNATE_FUNCTIONS(31, 6, UNUSED, UNUSED, 0, 0, 0), /* GPIO31, altA controlled by bit 6 */
ALTERNATE_FUNCTIONS(32, 7, UNUSED, UNUSED, 0, 0, 0), /* GPIO32, altA controlled by bit 7 */
ALTERNATE_FUNCTIONS(33, UNUSED, UNUSED, UNUSED, 0, 0, 0), /* no GPIO33 */
ALTERNATE_FUNCTIONS(34, 1, UNUSED, UNUSED, 0, 0, 0), /* GPIO34, altA controlled by bit 1 */
/* pin 35 special case, no alternate function, bit 2 reserved */
ALTERNATE_FUNCTIONS(35, UNUSED, UNUSED, UNUSED, 0, 0, 0), /* GPIO35 */
ALTERNATE_FUNCTIONS(36, 3, UNUSED, UNUSED, 0, 0, 0), /* GPIO36, altA controlled by bit 3 */
ALTERNATE_FUNCTIONS(37, 4, UNUSED, UNUSED, 0, 0, 0), /* GPIO37, altA controlled by bit 4 */
ALTERNATE_FUNCTIONS(38, 5, UNUSED, UNUSED, 0, 0, 0), /* GPIO38, altA controlled by bit 5 */
ALTERNATE_FUNCTIONS(39, 6, UNUSED, UNUSED, 0, 0, 0), /* GPIO39, altA controlled by bit 6 */
ALTERNATE_FUNCTIONS(40, 7, UNUSED, UNUSED, 0, 0, 0), /* GPIO40, altA controlled by bit 7 */
ALTERNATE_FUNCTIONS(41, 0, UNUSED, UNUSED, 0, 0, 0), /* GPIO41, altA controlled by bit 0 */
ALTERNATE_FUNCTIONS(42, 1, UNUSED, UNUSED, 0, 0, 0), /* GPIO42, altA controlled by bit 1 */
};
/*
* Only some GPIOs are interrupt capable, and they are
* organized in discontiguous clusters:
*
* GPIO6 to GPIO13
* GPIO24 and GPIO25
* GPIO36 to GPIO41
*/
struct abx500_gpio_irq_cluster ab8500_gpio_irq_cluster[] = {
GPIO_IRQ_CLUSTER(6, 13, 0),
GPIO_IRQ_CLUSTER(24, 25, 0),
GPIO_IRQ_CLUSTER(36, 41, 0),
};
static struct abx500_pinctrl_soc_data ab8500_soc = {
.gpio_ranges = ab8500_pinranges,
.gpio_num_ranges = ARRAY_SIZE(ab8500_pinranges),
.pins = ab8500_pins,
.npins = ARRAY_SIZE(ab8500_pins),
.functions = ab8500_functions,
.nfunctions = ARRAY_SIZE(ab8500_functions),
.groups = ab8500_groups,
.ngroups = ARRAY_SIZE(ab8500_groups),
.alternate_functions = ab8500_alternate_functions,
.gpio_irq_cluster = ab8500_gpio_irq_cluster,
.ngpio_irq_cluster = ARRAY_SIZE(ab8500_gpio_irq_cluster),
.irq_gpio_rising_offset = AB8500_INT_GPIO6R,
.irq_gpio_falling_offset = AB8500_INT_GPIO6F,
.irq_gpio_factor = 1,
};
void abx500_pinctrl_ab8500_init(struct abx500_pinctrl_soc_data **soc)
{
*soc = &ab8500_soc;
}
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