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linux/drivers/pinctrl/pinctrl-ab8500.c
Patrice Chotard 3c93799378 pinctrl/abx500: add AB8500 sub-driver 
This adds a subdriver for the AB8500 pinctrl portions.
As the pin controller (also the ABx500 controllers) is an
inherent part of the SoC and will prevent boot if not
available, select this from the Ux500 SoC Kconfig.

Acked-by: Olof Johansson <olof@lixom.net>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-01-30 20:42:40 +01:00

485 lines
22 KiB
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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(5, 12, 0), /* GPIO numbers start from 1 */
GPIO_IRQ_CLUSTER(23, 24, 0),
GPIO_IRQ_CLUSTER(35, 40, 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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