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linux-stable/drivers/pinctrl/pinctrl-palmas.c
Masahiro Yamada 323de9efdf pinctrl: make pinctrl_register() return proper error code 
Currently, pinctrl_register() just returns NULL on error, so the
callers can not know the exact reason of the failure.

Some of the pinctrl drivers return -EINVAL, some -ENODEV, and some
-ENOMEM on error of pinctrl_register(), although the error code
might be different from the real cause of the error.

This commit reworks pinctrl_register() to return the appropriate
error code and modifies all of the pinctrl drivers to use IS_ERR()
for the error checking and PTR_ERR() for getting the error code.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Lee Jones <lee@kernel.org>
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Ray Jui <rjui@broadcom.com>
Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Acked-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Acked-by: Wei Chen <Wei.Chen@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-06-10 14:49:52 +02:00

1076 lines
33 KiB
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/*
* pinctrl-palmas.c -- TI PALMAS series pin control driver.
*
* Copyright (c) 2013, NVIDIA Corporation.
*
* Author: Laxman Dewangan <ldewangan@nvidia.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
* whether express or implied; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307, USA
*/
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/mfd/palmas.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pinctrl/machine.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinconf-generic.h>
#include <linux/pinctrl/pinconf.h>
#include <linux/pinctrl/pinmux.h>
#include <linux/pm.h>
#include <linux/slab.h>
#include "core.h"
#include "pinconf.h"
#include "pinctrl-utils.h"
#define PALMAS_PIN_GPIO0_ID 0
#define PALMAS_PIN_GPIO1_VBUS_LED1_PWM1 1
#define PALMAS_PIN_GPIO2_REGEN_LED2_PWM2 2
#define PALMAS_PIN_GPIO3_CHRG_DET 3
#define PALMAS_PIN_GPIO4_SYSEN1 4
#define PALMAS_PIN_GPIO5_CLK32KGAUDIO_USB_PSEL 5
#define PALMAS_PIN_GPIO6_SYSEN2 6
#define PALMAS_PIN_GPIO7_MSECURE_PWRHOLD 7
#define PALMAS_PIN_GPIO8_SIM1RSTI 8
#define PALMAS_PIN_GPIO9_LOW_VBAT 9
#define PALMAS_PIN_GPIO10_WIRELESS_CHRG1 10
#define PALMAS_PIN_GPIO11_RCM 11
#define PALMAS_PIN_GPIO12_SIM2RSTO 12
#define PALMAS_PIN_GPIO13 13
#define PALMAS_PIN_GPIO14 14
#define PALMAS_PIN_GPIO15_SIM2RSTI 15
#define PALMAS_PIN_VAC 16
#define PALMAS_PIN_POWERGOOD_USB_PSEL 17
#define PALMAS_PIN_NRESWARM 18
#define PALMAS_PIN_PWRDOWN 19
#define PALMAS_PIN_GPADC_START 20
#define PALMAS_PIN_RESET_IN 21
#define PALMAS_PIN_NSLEEP 22
#define PALMAS_PIN_ENABLE1 23
#define PALMAS_PIN_ENABLE2 24
#define PALMAS_PIN_INT 25
#define PALMAS_PIN_NUM (PALMAS_PIN_INT + 1)
struct palmas_pin_function {
const char *name;
const char * const *groups;
unsigned ngroups;
};
struct palmas_pctrl_chip_info {
struct device *dev;
struct pinctrl_dev *pctl;
struct palmas *palmas;
int pins_current_opt[PALMAS_PIN_NUM];
const struct palmas_pin_function *functions;
unsigned num_functions;
const struct palmas_pingroup *pin_groups;
int num_pin_groups;
const struct pinctrl_pin_desc *pins;
unsigned num_pins;
};
static const struct pinctrl_pin_desc palmas_pins_desc[] = {
PINCTRL_PIN(PALMAS_PIN_GPIO0_ID, "gpio0"),
PINCTRL_PIN(PALMAS_PIN_GPIO1_VBUS_LED1_PWM1, "gpio1"),
PINCTRL_PIN(PALMAS_PIN_GPIO2_REGEN_LED2_PWM2, "gpio2"),
PINCTRL_PIN(PALMAS_PIN_GPIO3_CHRG_DET, "gpio3"),
PINCTRL_PIN(PALMAS_PIN_GPIO4_SYSEN1, "gpio4"),
PINCTRL_PIN(PALMAS_PIN_GPIO5_CLK32KGAUDIO_USB_PSEL, "gpio5"),
PINCTRL_PIN(PALMAS_PIN_GPIO6_SYSEN2, "gpio6"),
PINCTRL_PIN(PALMAS_PIN_GPIO7_MSECURE_PWRHOLD, "gpio7"),
PINCTRL_PIN(PALMAS_PIN_GPIO8_SIM1RSTI, "gpio8"),
PINCTRL_PIN(PALMAS_PIN_GPIO9_LOW_VBAT, "gpio9"),
PINCTRL_PIN(PALMAS_PIN_GPIO10_WIRELESS_CHRG1, "gpio10"),
PINCTRL_PIN(PALMAS_PIN_GPIO11_RCM, "gpio11"),
PINCTRL_PIN(PALMAS_PIN_GPIO12_SIM2RSTO, "gpio12"),
PINCTRL_PIN(PALMAS_PIN_GPIO13, "gpio13"),
PINCTRL_PIN(PALMAS_PIN_GPIO14, "gpio14"),
PINCTRL_PIN(PALMAS_PIN_GPIO15_SIM2RSTI, "gpio15"),
PINCTRL_PIN(PALMAS_PIN_VAC, "vac"),
PINCTRL_PIN(PALMAS_PIN_POWERGOOD_USB_PSEL, "powergood"),
PINCTRL_PIN(PALMAS_PIN_NRESWARM, "nreswarm"),
PINCTRL_PIN(PALMAS_PIN_PWRDOWN, "pwrdown"),
PINCTRL_PIN(PALMAS_PIN_GPADC_START, "gpadc_start"),
PINCTRL_PIN(PALMAS_PIN_RESET_IN, "reset_in"),
PINCTRL_PIN(PALMAS_PIN_NSLEEP, "nsleep"),
PINCTRL_PIN(PALMAS_PIN_ENABLE1, "enable1"),
PINCTRL_PIN(PALMAS_PIN_ENABLE2, "enable2"),
PINCTRL_PIN(PALMAS_PIN_INT, "int"),
};
static const char * const opt0_groups[] = {
"gpio0",
"gpio1",
"gpio2",
"gpio3",
"gpio4",
"gpio5",
"gpio6",
"gpio7",
"gpio8",
"gpio9",
"gpio10",
"gpio11",
"gpio12",
"gpio13",
"gpio14",
"gpio15",
"vac",
"powergood",
"nreswarm",
"pwrdown",
"gpadc_start",
"reset_in",
"nsleep",
"enable1",
"enable2",
"int",
};
static const char * const opt1_groups[] = {
"gpio0",
"gpio1",
"gpio2",
"gpio3",
"gpio4",
"gpio5",
"gpio6",
"gpio7",
"gpio8",
"gpio9",
"gpio10",
"gpio11",
"gpio12",
"gpio15",
"vac",
"powergood",
};
static const char * const opt2_groups[] = {
"gpio1",
"gpio2",
"gpio5",
"gpio7",
};
static const char * const opt3_groups[] = {
"gpio1",
"gpio2",
};
static const char * const gpio_groups[] = {
"gpio0",
"gpio1",
"gpio2",
"gpio3",
"gpio4",
"gpio5",
"gpio6",
"gpio7",
"gpio8",
"gpio9",
"gpio10",
"gpio11",
"gpio12",
"gpio13",
"gpio14",
"gpio15",
};
static const char * const led_groups[] = {
"gpio1",
"gpio2",
};
static const char * const pwm_groups[] = {
"gpio1",
"gpio2",
};
static const char * const regen_groups[] = {
"gpio2",
};
static const char * const sysen_groups[] = {
"gpio4",
"gpio6",
};
static const char * const clk32kgaudio_groups[] = {
"gpio5",
};
static const char * const id_groups[] = {
"gpio0",
};
static const char * const vbus_det_groups[] = {
"gpio1",
};
static const char * const chrg_det_groups[] = {
"gpio3",
};
static const char * const vac_groups[] = {
"vac",
};
static const char * const vacok_groups[] = {
"vac",
};
static const char * const powergood_groups[] = {
"powergood",
};
static const char * const usb_psel_groups[] = {
"gpio5",
"powergood",
};
static const char * const msecure_groups[] = {
"gpio7",
};
static const char * const pwrhold_groups[] = {
"gpio7",
};
static const char * const int_groups[] = {
"int",
};
static const char * const nreswarm_groups[] = {
"nreswarm",
};
static const char * const simrsto_groups[] = {
"gpio12",
};
static const char * const simrsti_groups[] = {
"gpio8",
"gpio15",
};
static const char * const low_vbat_groups[] = {
"gpio9",
};
static const char * const wireless_chrg1_groups[] = {
"gpio10",
};
static const char * const rcm_groups[] = {
"gpio11",
};
static const char * const pwrdown_groups[] = {
"pwrdown",
};
static const char * const gpadc_start_groups[] = {
"gpadc_start",
};
static const char * const reset_in_groups[] = {
"reset_in",
};
static const char * const nsleep_groups[] = {
"nsleep",
};
static const char * const enable_groups[] = {
"enable1",
"enable2",
};
#define FUNCTION_GROUPS \
FUNCTION_GROUP(opt0, OPTION0), \
FUNCTION_GROUP(opt1, OPTION1), \
FUNCTION_GROUP(opt2, OPTION2), \
FUNCTION_GROUP(opt3, OPTION3), \
FUNCTION_GROUP(gpio, GPIO), \
FUNCTION_GROUP(led, LED), \
FUNCTION_GROUP(pwm, PWM), \
FUNCTION_GROUP(regen, REGEN), \
FUNCTION_GROUP(sysen, SYSEN), \
FUNCTION_GROUP(clk32kgaudio, CLK32KGAUDIO), \
FUNCTION_GROUP(id, ID), \
FUNCTION_GROUP(vbus_det, VBUS_DET), \
FUNCTION_GROUP(chrg_det, CHRG_DET), \
FUNCTION_GROUP(vac, VAC), \
FUNCTION_GROUP(vacok, VACOK), \
FUNCTION_GROUP(powergood, POWERGOOD), \
FUNCTION_GROUP(usb_psel, USB_PSEL), \
FUNCTION_GROUP(msecure, MSECURE), \
FUNCTION_GROUP(pwrhold, PWRHOLD), \
FUNCTION_GROUP(int, INT), \
FUNCTION_GROUP(nreswarm, NRESWARM), \
FUNCTION_GROUP(simrsto, SIMRSTO), \
FUNCTION_GROUP(simrsti, SIMRSTI), \
FUNCTION_GROUP(low_vbat, LOW_VBAT), \
FUNCTION_GROUP(wireless_chrg1, WIRELESS_CHRG1), \
FUNCTION_GROUP(rcm, RCM), \
FUNCTION_GROUP(pwrdown, PWRDOWN), \
FUNCTION_GROUP(gpadc_start, GPADC_START), \
FUNCTION_GROUP(reset_in, RESET_IN), \
FUNCTION_GROUP(nsleep, NSLEEP), \
FUNCTION_GROUP(enable, ENABLE)
static const struct palmas_pin_function palmas_pin_function[] = {
#undef FUNCTION_GROUP
#define FUNCTION_GROUP(fname, mux) \
{ \
.name = #fname, \
.groups = fname##_groups, \
.ngroups = ARRAY_SIZE(fname##_groups), \
}
FUNCTION_GROUPS,
};
enum palmas_pinmux {
#undef FUNCTION_GROUP
#define FUNCTION_GROUP(fname, mux) PALMAS_PINMUX_##mux
FUNCTION_GROUPS,
PALMAS_PINMUX_NA = 0xFFFF,
};
struct palmas_pins_pullup_dn_info {
int pullup_dn_reg_base;
int pullup_dn_reg_add;
int pullup_dn_mask;
int normal_val;
int pull_up_val;
int pull_dn_val;
};
struct palmas_pins_od_info {
int od_reg_base;
int od_reg_add;
int od_mask;
int od_enable;
int od_disable;
};
struct palmas_pin_info {
enum palmas_pinmux mux_opt;
const struct palmas_pins_pullup_dn_info *pud_info;
const struct palmas_pins_od_info *od_info;
};
struct palmas_pingroup {
const char *name;
const unsigned pins[1];
unsigned npins;
unsigned mux_reg_base;
unsigned mux_reg_add;
unsigned mux_reg_mask;
unsigned mux_bit_shift;
const struct palmas_pin_info *opt[4];
};
#define PULL_UP_DN(_name, _rbase, _add, _mask, _nv, _uv, _dv) \
static const struct palmas_pins_pullup_dn_info pud_##_name##_info = { \
.pullup_dn_reg_base = PALMAS_##_rbase##_BASE, \
.pullup_dn_reg_add = _add, \
.pullup_dn_mask = _mask, \
.normal_val = _nv, \
.pull_up_val = _uv, \
.pull_dn_val = _dv, \
}
PULL_UP_DN(nreswarm, PU_PD_OD, PALMAS_PU_PD_INPUT_CTRL1, 0x2, 0x0, 0x2, -1);
PULL_UP_DN(pwrdown, PU_PD_OD, PALMAS_PU_PD_INPUT_CTRL1, 0x4, 0x0, -1, 0x4);
PULL_UP_DN(gpadc_start, PU_PD_OD, PALMAS_PU_PD_INPUT_CTRL1, 0x30, 0x0, 0x20, 0x10);
PULL_UP_DN(reset_in, PU_PD_OD, PALMAS_PU_PD_INPUT_CTRL1, 0x40, 0x0, -1, 0x40);
PULL_UP_DN(nsleep, PU_PD_OD, PALMAS_PU_PD_INPUT_CTRL2, 0x3, 0x0, 0x2, 0x1);
PULL_UP_DN(enable1, PU_PD_OD, PALMAS_PU_PD_INPUT_CTRL2, 0xC, 0x0, 0x8, 0x4);
PULL_UP_DN(enable2, PU_PD_OD, PALMAS_PU_PD_INPUT_CTRL2, 0x30, 0x0, 0x20, 0x10);
PULL_UP_DN(vacok, PU_PD_OD, PALMAS_PU_PD_INPUT_CTRL3, 0x40, 0x0, -1, 0x40);
PULL_UP_DN(chrg_det, PU_PD_OD, PALMAS_PU_PD_INPUT_CTRL3, 0x10, 0x0, -1, 0x10);
PULL_UP_DN(pwrhold, PU_PD_OD, PALMAS_PU_PD_INPUT_CTRL3, 0x4, 0x0, -1, 0x4);
PULL_UP_DN(msecure, PU_PD_OD, PALMAS_PU_PD_INPUT_CTRL3, 0x1, 0x0, -1, 0x1);
PULL_UP_DN(id, USB_OTG, PALMAS_USB_ID_CTRL_SET, 0x40, 0x0, 0x40, -1);
PULL_UP_DN(gpio0, GPIO, PALMAS_PU_PD_GPIO_CTRL1, 0x04, 0, -1, 1);
PULL_UP_DN(gpio1, GPIO, PALMAS_PU_PD_GPIO_CTRL1, 0x0C, 0, 0x8, 0x4);
PULL_UP_DN(gpio2, GPIO, PALMAS_PU_PD_GPIO_CTRL1, 0x30, 0x0, 0x20, 0x10);
PULL_UP_DN(gpio3, GPIO, PALMAS_PU_PD_GPIO_CTRL1, 0x40, 0x0, -1, 0x40);
PULL_UP_DN(gpio4, GPIO, PALMAS_PU_PD_GPIO_CTRL2, 0x03, 0x0, 0x2, 0x1);
PULL_UP_DN(gpio5, GPIO, PALMAS_PU_PD_GPIO_CTRL2, 0x0c, 0x0, 0x8, 0x4);
PULL_UP_DN(gpio6, GPIO, PALMAS_PU_PD_GPIO_CTRL2, 0x30, 0x0, 0x20, 0x10);
PULL_UP_DN(gpio7, GPIO, PALMAS_PU_PD_GPIO_CTRL2, 0x40, 0x0, -1, 0x40);
PULL_UP_DN(gpio9, GPIO, PALMAS_PU_PD_GPIO_CTRL3, 0x0C, 0x0, 0x8, 0x4);
PULL_UP_DN(gpio10, GPIO, PALMAS_PU_PD_GPIO_CTRL3, 0x30, 0x0, 0x20, 0x10);
PULL_UP_DN(gpio11, GPIO, PALMAS_PU_PD_GPIO_CTRL3, 0xC0, 0x0, 0x80, 0x40);
PULL_UP_DN(gpio13, GPIO, PALMAS_PU_PD_GPIO_CTRL4, 0x04, 0x0, -1, 0x04);
PULL_UP_DN(gpio14, GPIO, PALMAS_PU_PD_GPIO_CTRL4, 0x30, 0x0, 0x20, 0x10);
#define OD_INFO(_name, _rbase, _add, _mask, _ev, _dv) \
static const struct palmas_pins_od_info od_##_name##_info = { \
.od_reg_base = PALMAS_##_rbase##_BASE, \
.od_reg_add = _add, \
.od_mask = _mask, \
.od_enable = _ev, \
.od_disable = _dv, \
}
OD_INFO(gpio1, GPIO, PALMAS_OD_OUTPUT_GPIO_CTRL, 0x1, 0x1, 0x0);
OD_INFO(gpio2, GPIO, PALMAS_OD_OUTPUT_GPIO_CTRL, 0x2, 0x2, 0x0);
OD_INFO(gpio5, GPIO, PALMAS_OD_OUTPUT_GPIO_CTRL, 0x20, 0x20, 0x0);
OD_INFO(gpio10, GPIO, PALMAS_OD_OUTPUT_GPIO_CTRL2, 0x04, 0x04, 0x0);
OD_INFO(gpio13, GPIO, PALMAS_OD_OUTPUT_GPIO_CTRL2, 0x20, 0x20, 0x0);
OD_INFO(int, PU_PD_OD, PALMAS_OD_OUTPUT_CTRL, 0x8, 0x8, 0x0);
OD_INFO(pwm1, PU_PD_OD, PALMAS_OD_OUTPUT_CTRL, 0x20, 0x20, 0x0);
OD_INFO(pwm2, PU_PD_OD, PALMAS_OD_OUTPUT_CTRL, 0x80, 0x80, 0x0);
OD_INFO(vbus_det, PU_PD_OD, PALMAS_OD_OUTPUT_CTRL, 0x40, 0x40, 0x0);
#define PIN_INFO(_name, _id, _pud_info, _od_info) \
static const struct palmas_pin_info pin_##_name##_info = { \
.mux_opt = PALMAS_PINMUX_##_id, \
.pud_info = _pud_info, \
.od_info = _od_info \
}
PIN_INFO(gpio0, GPIO, &pud_gpio0_info, NULL);
PIN_INFO(gpio1, GPIO, &pud_gpio1_info, &od_gpio1_info);
PIN_INFO(gpio2, GPIO, &pud_gpio2_info, &od_gpio2_info);
PIN_INFO(gpio3, GPIO, &pud_gpio3_info, NULL);
PIN_INFO(gpio4, GPIO, &pud_gpio4_info, NULL);
PIN_INFO(gpio5, GPIO, &pud_gpio5_info, &od_gpio5_info);
PIN_INFO(gpio6, GPIO, &pud_gpio6_info, NULL);
PIN_INFO(gpio7, GPIO, &pud_gpio7_info, NULL);
PIN_INFO(gpio8, GPIO, NULL, NULL);
PIN_INFO(gpio9, GPIO, &pud_gpio9_info, NULL);
PIN_INFO(gpio10, GPIO, &pud_gpio10_info, &od_gpio10_info);
PIN_INFO(gpio11, GPIO, &pud_gpio11_info, NULL);
PIN_INFO(gpio12, GPIO, NULL, NULL);
PIN_INFO(gpio13, GPIO, &pud_gpio13_info, &od_gpio13_info);
PIN_INFO(gpio14, GPIO, &pud_gpio14_info, NULL);
PIN_INFO(gpio15, GPIO, NULL, NULL);
PIN_INFO(id, ID, &pud_id_info, NULL);
PIN_INFO(led1, LED, NULL, NULL);
PIN_INFO(led2, LED, NULL, NULL);
PIN_INFO(regen, REGEN, NULL, NULL);
PIN_INFO(sysen1, SYSEN, NULL, NULL);
PIN_INFO(sysen2, SYSEN, NULL, NULL);
PIN_INFO(int, INT, NULL, &od_int_info);
PIN_INFO(pwm1, PWM, NULL, &od_pwm1_info);
PIN_INFO(pwm2, PWM, NULL, &od_pwm2_info);
PIN_INFO(vacok, VACOK, &pud_vacok_info, NULL);
PIN_INFO(chrg_det, CHRG_DET, &pud_chrg_det_info, NULL);
PIN_INFO(pwrhold, PWRHOLD, &pud_pwrhold_info, NULL);
PIN_INFO(msecure, MSECURE, &pud_msecure_info, NULL);
PIN_INFO(nreswarm, NA, &pud_nreswarm_info, NULL);
PIN_INFO(pwrdown, NA, &pud_pwrdown_info, NULL);
PIN_INFO(gpadc_start, NA, &pud_gpadc_start_info, NULL);
PIN_INFO(reset_in, NA, &pud_reset_in_info, NULL);
PIN_INFO(nsleep, NA, &pud_nsleep_info, NULL);
PIN_INFO(enable1, NA, &pud_enable1_info, NULL);
PIN_INFO(enable2, NA, &pud_enable2_info, NULL);
PIN_INFO(clk32kgaudio, CLK32KGAUDIO, NULL, NULL);
PIN_INFO(usb_psel, USB_PSEL, NULL, NULL);
PIN_INFO(vac, VAC, NULL, NULL);
PIN_INFO(powergood, POWERGOOD, NULL, NULL);
PIN_INFO(vbus_det, VBUS_DET, NULL, &od_vbus_det_info);
PIN_INFO(sim1rsti, SIMRSTI, NULL, NULL);
PIN_INFO(low_vbat, LOW_VBAT, NULL, NULL);
PIN_INFO(rcm, RCM, NULL, NULL);
PIN_INFO(sim2rsto, SIMRSTO, NULL, NULL);
PIN_INFO(sim2rsti, SIMRSTI, NULL, NULL);
PIN_INFO(wireless_chrg1, WIRELESS_CHRG1, NULL, NULL);
#define PALMAS_PRIMARY_SECONDARY_NONE 0
#define PALMAS_NONE_BASE 0
#define PALMAS_PRIMARY_SECONDARY_INPUT3 PALMAS_PU_PD_INPUT_CTRL3
#define PALMAS_PINGROUP(pg_name, pin_id, base, reg, _mask, _bshift, o0, o1, o2, o3) \
{ \
.name = #pg_name, \
.pins = {PALMAS_PIN_##pin_id}, \
.npins = 1, \
.mux_reg_base = PALMAS_##base##_BASE, \
.mux_reg_add = PALMAS_PRIMARY_SECONDARY_##reg, \
.mux_reg_mask = _mask, \
.mux_bit_shift = _bshift, \
.opt = { \
o0, \
o1, \
o2, \
o3, \
}, \
}
static const struct palmas_pingroup tps65913_pingroups[] = {
PALMAS_PINGROUP(gpio0, GPIO0_ID, PU_PD_OD, PAD1, 0x4, 0x2, &pin_gpio0_info, &pin_id_info, NULL, NULL),
PALMAS_PINGROUP(gpio1, GPIO1_VBUS_LED1_PWM1, PU_PD_OD, PAD1, 0x18, 0x3, &pin_gpio1_info, &pin_vbus_det_info, &pin_led1_info, &pin_pwm1_info),
PALMAS_PINGROUP(gpio2, GPIO2_REGEN_LED2_PWM2, PU_PD_OD, PAD1, 0x60, 0x5, &pin_gpio2_info, &pin_regen_info, &pin_led2_info, &pin_pwm2_info),
PALMAS_PINGROUP(gpio3, GPIO3_CHRG_DET, PU_PD_OD, PAD1, 0x80, 0x7, &pin_gpio3_info, &pin_chrg_det_info, NULL, NULL),
PALMAS_PINGROUP(gpio4, GPIO4_SYSEN1, PU_PD_OD, PAD1, 0x01, 0x0, &pin_gpio4_info, &pin_sysen1_info, NULL, NULL),
PALMAS_PINGROUP(gpio5, GPIO5_CLK32KGAUDIO_USB_PSEL, PU_PD_OD, PAD2, 0x6, 0x1, &pin_gpio5_info, &pin_clk32kgaudio_info, &pin_usb_psel_info, NULL),
PALMAS_PINGROUP(gpio6, GPIO6_SYSEN2, PU_PD_OD, PAD2, 0x08, 0x3, &pin_gpio6_info, &pin_sysen2_info, NULL, NULL),
PALMAS_PINGROUP(gpio7, GPIO7_MSECURE_PWRHOLD, PU_PD_OD, PAD2, 0x30, 0x4, &pin_gpio7_info, &pin_msecure_info, &pin_pwrhold_info, NULL),
PALMAS_PINGROUP(vac, VAC, PU_PD_OD, PAD1, 0x02, 0x1, &pin_vac_info, &pin_vacok_info, NULL, NULL),
PALMAS_PINGROUP(powergood, POWERGOOD_USB_PSEL, PU_PD_OD, PAD1, 0x01, 0x0, &pin_powergood_info, &pin_usb_psel_info, NULL, NULL),
PALMAS_PINGROUP(nreswarm, NRESWARM, NONE, NONE, 0x0, 0x0, &pin_nreswarm_info, NULL, NULL, NULL),
PALMAS_PINGROUP(pwrdown, PWRDOWN, NONE, NONE, 0x0, 0x0, &pin_pwrdown_info, NULL, NULL, NULL),
PALMAS_PINGROUP(gpadc_start, GPADC_START, NONE, NONE, 0x0, 0x0, &pin_gpadc_start_info, NULL, NULL, NULL),
PALMAS_PINGROUP(reset_in, RESET_IN, NONE, NONE, 0x0, 0x0, &pin_reset_in_info, NULL, NULL, NULL),
PALMAS_PINGROUP(nsleep, NSLEEP, NONE, NONE, 0x0, 0x0, &pin_nsleep_info, NULL, NULL, NULL),
PALMAS_PINGROUP(enable1, ENABLE1, NONE, NONE, 0x0, 0x0, &pin_enable1_info, NULL, NULL, NULL),
PALMAS_PINGROUP(enable2, ENABLE2, NONE, NONE, 0x0, 0x0, &pin_enable2_info, NULL, NULL, NULL),
PALMAS_PINGROUP(int, INT, NONE, NONE, 0x0, 0x0, &pin_int_info, NULL, NULL, NULL),
};
static const struct palmas_pingroup tps80036_pingroups[] = {
PALMAS_PINGROUP(gpio0, GPIO0_ID, PU_PD_OD, PAD1, 0x4, 0x2, &pin_gpio0_info, &pin_id_info, NULL, NULL),
PALMAS_PINGROUP(gpio1, GPIO1_VBUS_LED1_PWM1, PU_PD_OD, PAD1, 0x18, 0x3, &pin_gpio1_info, &pin_vbus_det_info, &pin_led1_info, &pin_pwm1_info),
PALMAS_PINGROUP(gpio2, GPIO2_REGEN_LED2_PWM2, PU_PD_OD, PAD1, 0x60, 0x5, &pin_gpio2_info, &pin_regen_info, &pin_led2_info, &pin_pwm2_info),
PALMAS_PINGROUP(gpio3, GPIO3_CHRG_DET, PU_PD_OD, PAD1, 0x80, 0x7, &pin_gpio3_info, &pin_chrg_det_info, NULL, NULL),
PALMAS_PINGROUP(gpio4, GPIO4_SYSEN1, PU_PD_OD, PAD1, 0x01, 0x0, &pin_gpio4_info, &pin_sysen1_info, NULL, NULL),
PALMAS_PINGROUP(gpio5, GPIO5_CLK32KGAUDIO_USB_PSEL, PU_PD_OD, PAD2, 0x6, 0x1, &pin_gpio5_info, &pin_clk32kgaudio_info, &pin_usb_psel_info, NULL),
PALMAS_PINGROUP(gpio6, GPIO6_SYSEN2, PU_PD_OD, PAD2, 0x08, 0x3, &pin_gpio6_info, &pin_sysen2_info, NULL, NULL),
PALMAS_PINGROUP(gpio7, GPIO7_MSECURE_PWRHOLD, PU_PD_OD, PAD2, 0x30, 0x4, &pin_gpio7_info, &pin_msecure_info, &pin_pwrhold_info, NULL),
PALMAS_PINGROUP(gpio8, GPIO8_SIM1RSTI, PU_PD_OD, PAD4, 0x01, 0x0, &pin_gpio8_info, &pin_sim1rsti_info, NULL, NULL),
PALMAS_PINGROUP(gpio9, GPIO9_LOW_VBAT, PU_PD_OD, PAD4, 0x02, 0x1, &pin_gpio9_info, &pin_low_vbat_info, NULL, NULL),
PALMAS_PINGROUP(gpio10, GPIO10_WIRELESS_CHRG1, PU_PD_OD, PAD4, 0x04, 0x2, &pin_gpio10_info, &pin_wireless_chrg1_info, NULL, NULL),
PALMAS_PINGROUP(gpio11, GPIO11_RCM, PU_PD_OD, PAD4, 0x08, 0x3, &pin_gpio11_info, &pin_rcm_info, NULL, NULL),
PALMAS_PINGROUP(gpio12, GPIO12_SIM2RSTO, PU_PD_OD, PAD4, 0x10, 0x4, &pin_gpio12_info, &pin_sim2rsto_info, NULL, NULL),
PALMAS_PINGROUP(gpio13, GPIO13, NONE, NONE, 0x00, 0x0, &pin_gpio13_info, NULL, NULL, NULL),
PALMAS_PINGROUP(gpio14, GPIO14, NONE, NONE, 0x00, 0x0, &pin_gpio14_info, NULL, NULL, NULL),
PALMAS_PINGROUP(gpio15, GPIO15_SIM2RSTI, PU_PD_OD, PAD4, 0x80, 0x7, &pin_gpio15_info, &pin_sim2rsti_info, NULL, NULL),
PALMAS_PINGROUP(vac, VAC, PU_PD_OD, PAD1, 0x02, 0x1, &pin_vac_info, &pin_vacok_info, NULL, NULL),
PALMAS_PINGROUP(powergood, POWERGOOD_USB_PSEL, PU_PD_OD, PAD1, 0x01, 0x0, &pin_powergood_info, &pin_usb_psel_info, NULL, NULL),
PALMAS_PINGROUP(nreswarm, NRESWARM, NONE, NONE, 0x0, 0x0, &pin_nreswarm_info, NULL, NULL, NULL),
PALMAS_PINGROUP(pwrdown, PWRDOWN, NONE, NONE, 0x0, 0x0, &pin_pwrdown_info, NULL, NULL, NULL),
PALMAS_PINGROUP(gpadc_start, GPADC_START, NONE, NONE, 0x0, 0x0, &pin_gpadc_start_info, NULL, NULL, NULL),
PALMAS_PINGROUP(reset_in, RESET_IN, NONE, NONE, 0x0, 0x0, &pin_reset_in_info, NULL, NULL, NULL),
PALMAS_PINGROUP(nsleep, NSLEEP, NONE, NONE, 0x0, 0x0, &pin_nsleep_info, NULL, NULL, NULL),
PALMAS_PINGROUP(enable1, ENABLE1, NONE, NONE, 0x0, 0x0, &pin_enable1_info, NULL, NULL, NULL),
PALMAS_PINGROUP(enable2, ENABLE2, NONE, NONE, 0x0, 0x0, &pin_enable2_info, NULL, NULL, NULL),
PALMAS_PINGROUP(int, INT, NONE, NONE, 0x0, 0x0, &pin_int_info, NULL, NULL, NULL),
};
static int palmas_pinctrl_get_pin_mux(struct palmas_pctrl_chip_info *pci)
{
const struct palmas_pingroup *g;
unsigned int val;
int ret;
int i;
for (i = 0; i < pci->num_pin_groups; ++i) {
g = &pci->pin_groups[i];
if (g->mux_reg_base == PALMAS_NONE_BASE) {
pci->pins_current_opt[i] = 0;
continue;
}
ret = palmas_read(pci->palmas, g->mux_reg_base,
g->mux_reg_add, &val);
if (ret < 0) {
dev_err(pci->dev, "mux_reg 0x%02x read failed: %d\n",
g->mux_reg_add, ret);
return ret;
}
val &= g->mux_reg_mask;
pci->pins_current_opt[i] = val >> g->mux_bit_shift;
}
return 0;
}
static int palmas_pinctrl_set_dvfs1(struct palmas_pctrl_chip_info *pci,
bool enable)
{
int ret;
int val;
val = enable ? PALMAS_PRIMARY_SECONDARY_PAD3_DVFS1 : 0;
ret = palmas_update_bits(pci->palmas, PALMAS_PU_PD_OD_BASE,
PALMAS_PRIMARY_SECONDARY_PAD3,
PALMAS_PRIMARY_SECONDARY_PAD3_DVFS1, val);
if (ret < 0)
dev_err(pci->dev, "SECONDARY_PAD3 update failed %d\n", ret);
return ret;
}
static int palmas_pinctrl_set_dvfs2(struct palmas_pctrl_chip_info *pci,
bool enable)
{
int ret;
int val;
val = enable ? PALMAS_PRIMARY_SECONDARY_PAD3_DVFS2 : 0;
ret = palmas_update_bits(pci->palmas, PALMAS_PU_PD_OD_BASE,
PALMAS_PRIMARY_SECONDARY_PAD3,
PALMAS_PRIMARY_SECONDARY_PAD3_DVFS2, val);
if (ret < 0)
dev_err(pci->dev, "SECONDARY_PAD3 update failed %d\n", ret);
return ret;
}
static int palmas_pinctrl_get_groups_count(struct pinctrl_dev *pctldev)
{
struct palmas_pctrl_chip_info *pci = pinctrl_dev_get_drvdata(pctldev);
return pci->num_pin_groups;
}
static const char *palmas_pinctrl_get_group_name(struct pinctrl_dev *pctldev,
unsigned group)
{
struct palmas_pctrl_chip_info *pci = pinctrl_dev_get_drvdata(pctldev);
return pci->pin_groups[group].name;
}
static int palmas_pinctrl_get_group_pins(struct pinctrl_dev *pctldev,
unsigned group, const unsigned **pins, unsigned *num_pins)
{
struct palmas_pctrl_chip_info *pci = pinctrl_dev_get_drvdata(pctldev);
*pins = pci->pin_groups[group].pins;
*num_pins = pci->pin_groups[group].npins;
return 0;
}
static const struct pinctrl_ops palmas_pinctrl_ops = {
.get_groups_count = palmas_pinctrl_get_groups_count,
.get_group_name = palmas_pinctrl_get_group_name,
.get_group_pins = palmas_pinctrl_get_group_pins,
.dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
.dt_free_map = pinctrl_utils_dt_free_map,
};
static int palmas_pinctrl_get_funcs_count(struct pinctrl_dev *pctldev)
{
struct palmas_pctrl_chip_info *pci = pinctrl_dev_get_drvdata(pctldev);
return pci->num_functions;
}
static const char *palmas_pinctrl_get_func_name(struct pinctrl_dev *pctldev,
unsigned function)
{
struct palmas_pctrl_chip_info *pci = pinctrl_dev_get_drvdata(pctldev);
return pci->functions[function].name;
}
static int palmas_pinctrl_get_func_groups(struct pinctrl_dev *pctldev,
unsigned function, const char * const **groups,
unsigned * const num_groups)
{
struct palmas_pctrl_chip_info *pci = pinctrl_dev_get_drvdata(pctldev);
*groups = pci->functions[function].groups;
*num_groups = pci->functions[function].ngroups;
return 0;
}
static int palmas_pinctrl_set_mux(struct pinctrl_dev *pctldev,
unsigned function,
unsigned group)
{
struct palmas_pctrl_chip_info *pci = pinctrl_dev_get_drvdata(pctldev);
const struct palmas_pingroup *g;
int i;
int ret;
g = &pci->pin_groups[group];
/* If direct option is provided here */
if (function <= PALMAS_PINMUX_OPTION3) {
if (!g->opt[function]) {
dev_err(pci->dev, "Pin %s does not support option %d\n",
g->name, function);
return -EINVAL;
}
i = function;
} else {
for (i = 0; i < ARRAY_SIZE(g->opt); i++) {
if (!g->opt[i])
continue;
if (g->opt[i]->mux_opt == function)
break;
}
if (WARN_ON(i == ARRAY_SIZE(g->opt))) {
dev_err(pci->dev, "Pin %s does not support option %d\n",
g->name, function);
return -EINVAL;
}
}
if (g->mux_reg_base == PALMAS_NONE_BASE) {
if (WARN_ON(i != 0))
return -EINVAL;
return 0;
}
dev_dbg(pci->dev, "%s(): Base0x%02x:0x%02x:0x%02x:0x%02x\n",
__func__, g->mux_reg_base, g->mux_reg_add,
g->mux_reg_mask, i << g->mux_bit_shift);
ret = palmas_update_bits(pci->palmas, g->mux_reg_base, g->mux_reg_add,
g->mux_reg_mask, i << g->mux_bit_shift);
if (ret < 0) {
dev_err(pci->dev, "Reg 0x%02x update failed: %d\n",
g->mux_reg_add, ret);
return ret;
}
pci->pins_current_opt[group] = i;
return 0;
}
static const struct pinmux_ops palmas_pinmux_ops = {
.get_functions_count = palmas_pinctrl_get_funcs_count,
.get_function_name = palmas_pinctrl_get_func_name,
.get_function_groups = palmas_pinctrl_get_func_groups,
.set_mux = palmas_pinctrl_set_mux,
};
static int palmas_pinconf_get(struct pinctrl_dev *pctldev,
unsigned pin, unsigned long *config)
{
struct palmas_pctrl_chip_info *pci = pinctrl_dev_get_drvdata(pctldev);
enum pin_config_param param = pinconf_to_config_param(*config);
const struct palmas_pingroup *g;
const struct palmas_pin_info *opt;
unsigned int val;
int ret;
int base, add;
int rval;
int arg;
int group_nr;
for (group_nr = 0; group_nr < pci->num_pin_groups; ++group_nr) {
if (pci->pin_groups[group_nr].pins[0] == pin)
break;
}
if (group_nr == pci->num_pin_groups) {
dev_err(pci->dev,
"Pinconf is not supported for pin-id %d\n", pin);
return -ENOTSUPP;
}
g = &pci->pin_groups[group_nr];
opt = g->opt[pci->pins_current_opt[group_nr]];
if (!opt) {
dev_err(pci->dev,
"Pinconf is not supported for pin %s\n", g->name);
return -ENOTSUPP;
}
switch (param) {
case PIN_CONFIG_BIAS_DISABLE:
case PIN_CONFIG_BIAS_PULL_UP:
case PIN_CONFIG_BIAS_PULL_DOWN:
if (!opt->pud_info) {
dev_err(pci->dev,
"PULL control not supported for pin %s\n",
g->name);
return -ENOTSUPP;
}
base = opt->pud_info->pullup_dn_reg_base;
add = opt->pud_info->pullup_dn_reg_add;
ret = palmas_read(pci->palmas, base, add, &val);
if (ret < 0) {
dev_err(pci->dev, "Reg 0x%02x read failed: %d\n",
add, ret);
return ret;
}
rval = val & opt->pud_info->pullup_dn_mask;
arg = 0;
if ((opt->pud_info->normal_val >= 0) &&
(opt->pud_info->normal_val == rval) &&
(param == PIN_CONFIG_BIAS_DISABLE))
arg = 1;
else if ((opt->pud_info->pull_up_val >= 0) &&
(opt->pud_info->pull_up_val == rval) &&
(param == PIN_CONFIG_BIAS_PULL_UP))
arg = 1;
else if ((opt->pud_info->pull_dn_val >= 0) &&
(opt->pud_info->pull_dn_val == rval) &&
(param == PIN_CONFIG_BIAS_PULL_DOWN))
arg = 1;
break;
case PIN_CONFIG_DRIVE_OPEN_DRAIN:
if (!opt->od_info) {
dev_err(pci->dev,
"OD control not supported for pin %s\n",
g->name);
return -ENOTSUPP;
}
base = opt->od_info->od_reg_base;
add = opt->od_info->od_reg_add;
ret = palmas_read(pci->palmas, base, add, &val);
if (ret < 0) {
dev_err(pci->dev, "Reg 0x%02x read failed: %d\n",
add, ret);
return ret;
}
rval = val & opt->od_info->od_mask;
arg = -1;
if ((opt->od_info->od_disable >= 0) &&
(opt->od_info->od_disable == rval))
arg = 0;
else if ((opt->od_info->od_enable >= 0) &&
(opt->od_info->od_enable == rval))
arg = 1;
if (arg < 0) {
dev_err(pci->dev,
"OD control not supported for pin %s\n",
g->name);
return -ENOTSUPP;
}
break;
default:
dev_err(pci->dev, "Properties not supported\n");
return -ENOTSUPP;
}
*config = pinconf_to_config_packed(param, (u16)arg);
return 0;
}
static int palmas_pinconf_set(struct pinctrl_dev *pctldev,
unsigned pin, unsigned long *configs,
unsigned num_configs)
{
struct palmas_pctrl_chip_info *pci = pinctrl_dev_get_drvdata(pctldev);
enum pin_config_param param;
u16 param_val;
const struct palmas_pingroup *g;
const struct palmas_pin_info *opt;
int ret;
int base, add, mask;
int rval;
int group_nr;
int i;
for (group_nr = 0; group_nr < pci->num_pin_groups; ++group_nr) {
if (pci->pin_groups[group_nr].pins[0] == pin)
break;
}
if (group_nr == pci->num_pin_groups) {
dev_err(pci->dev,
"Pinconf is not supported for pin-id %d\n", pin);
return -ENOTSUPP;
}
g = &pci->pin_groups[group_nr];
opt = g->opt[pci->pins_current_opt[group_nr]];
if (!opt) {
dev_err(pci->dev,
"Pinconf is not supported for pin %s\n", g->name);
return -ENOTSUPP;
}
for (i = 0; i < num_configs; i++) {
param = pinconf_to_config_param(configs[i]);
param_val = pinconf_to_config_argument(configs[i]);
switch (param) {
case PIN_CONFIG_BIAS_DISABLE:
case PIN_CONFIG_BIAS_PULL_UP:
case PIN_CONFIG_BIAS_PULL_DOWN:
if (!opt->pud_info) {
dev_err(pci->dev,
"PULL control not supported for pin %s\n",
g->name);
return -ENOTSUPP;
}
base = opt->pud_info->pullup_dn_reg_base;
add = opt->pud_info->pullup_dn_reg_add;
mask = opt->pud_info->pullup_dn_mask;
if (param == PIN_CONFIG_BIAS_DISABLE)
rval = opt->pud_info->normal_val;
else if (param == PIN_CONFIG_BIAS_PULL_UP)
rval = opt->pud_info->pull_up_val;
else
rval = opt->pud_info->pull_dn_val;
if (rval < 0) {
dev_err(pci->dev,
"PULL control not supported for pin %s\n",
g->name);
return -ENOTSUPP;
}
break;
case PIN_CONFIG_DRIVE_OPEN_DRAIN:
if (!opt->od_info) {
dev_err(pci->dev,
"OD control not supported for pin %s\n",
g->name);
return -ENOTSUPP;
}
base = opt->od_info->od_reg_base;
add = opt->od_info->od_reg_add;
mask = opt->od_info->od_mask;
if (param_val == 0)
rval = opt->od_info->od_disable;
else
rval = opt->od_info->od_enable;
if (rval < 0) {
dev_err(pci->dev,
"OD control not supported for pin %s\n",
g->name);
return -ENOTSUPP;
}
break;
default:
dev_err(pci->dev, "Properties not supported\n");
return -ENOTSUPP;
}
dev_dbg(pci->dev, "%s(): Add0x%02x:0x%02x:0x%02x:0x%02x\n",
__func__, base, add, mask, rval);
ret = palmas_update_bits(pci->palmas, base, add, mask, rval);
if (ret < 0) {
dev_err(pci->dev, "Reg 0x%02x update failed: %d\n",
add, ret);
return ret;
}
} /* for each config */
return 0;
}
static const struct pinconf_ops palmas_pinconf_ops = {
.pin_config_get = palmas_pinconf_get,
.pin_config_set = palmas_pinconf_set,
};
static struct pinctrl_desc palmas_pinctrl_desc = {
.pctlops = &palmas_pinctrl_ops,
.pmxops = &palmas_pinmux_ops,
.confops = &palmas_pinconf_ops,
.owner = THIS_MODULE,
};
struct palmas_pinctrl_data {
const struct palmas_pingroup *pin_groups;
int num_pin_groups;
};
static struct palmas_pinctrl_data tps65913_pinctrl_data = {
.pin_groups = tps65913_pingroups,
.num_pin_groups = ARRAY_SIZE(tps65913_pingroups),
};
static struct palmas_pinctrl_data tps80036_pinctrl_data = {
.pin_groups = tps80036_pingroups,
.num_pin_groups = ARRAY_SIZE(tps80036_pingroups),
};
static const struct of_device_id palmas_pinctrl_of_match[] = {
{ .compatible = "ti,palmas-pinctrl", .data = &tps65913_pinctrl_data},
{ .compatible = "ti,tps65913-pinctrl", .data = &tps65913_pinctrl_data},
{ .compatible = "ti,tps80036-pinctrl", .data = &tps80036_pinctrl_data},
{ },
};
MODULE_DEVICE_TABLE(of, palmas_pinctrl_of_match);
static int palmas_pinctrl_probe(struct platform_device *pdev)
{
struct palmas_pctrl_chip_info *pci;
const struct palmas_pinctrl_data *pinctrl_data = &tps65913_pinctrl_data;
int ret;
bool enable_dvfs1 = false;
bool enable_dvfs2 = false;
if (pdev->dev.of_node) {
const struct of_device_id *match;
match = of_match_device(palmas_pinctrl_of_match, &pdev->dev);
pinctrl_data = match->data;
enable_dvfs1 = of_property_read_bool(pdev->dev.of_node,
"ti,palmas-enable-dvfs1");
enable_dvfs2 = of_property_read_bool(pdev->dev.of_node,
"ti,palmas-enable-dvfs2");
}
pci = devm_kzalloc(&pdev->dev, sizeof(*pci), GFP_KERNEL);
if (!pci) {
dev_err(&pdev->dev, "Malloc for pci failed\n");
return -ENOMEM;
}
pci->dev = &pdev->dev;
pci->palmas = dev_get_drvdata(pdev->dev.parent);
pci->pins = palmas_pins_desc;
pci->num_pins = ARRAY_SIZE(palmas_pins_desc);
pci->functions = palmas_pin_function;
pci->num_functions = ARRAY_SIZE(palmas_pin_function);
pci->pin_groups = pinctrl_data->pin_groups;
pci->num_pin_groups = pinctrl_data->num_pin_groups;
platform_set_drvdata(pdev, pci);
palmas_pinctrl_set_dvfs1(pci, enable_dvfs1);
palmas_pinctrl_set_dvfs2(pci, enable_dvfs2);
ret = palmas_pinctrl_get_pin_mux(pci);
if (ret < 0) {
dev_err(&pdev->dev,
"Reading pinctrol option register failed: %d\n", ret);
return ret;
}
palmas_pinctrl_desc.name = dev_name(&pdev->dev);
palmas_pinctrl_desc.pins = palmas_pins_desc;
palmas_pinctrl_desc.npins = ARRAY_SIZE(palmas_pins_desc);
pci->pctl = pinctrl_register(&palmas_pinctrl_desc, &pdev->dev, pci);
if (IS_ERR(pci->pctl)) {
dev_err(&pdev->dev, "Couldn't register pinctrl driver\n");
return PTR_ERR(pci->pctl);
}
return 0;
}
static int palmas_pinctrl_remove(struct platform_device *pdev)
{
struct palmas_pctrl_chip_info *pci = platform_get_drvdata(pdev);
pinctrl_unregister(pci->pctl);
return 0;
}
static struct platform_driver palmas_pinctrl_driver = {
.driver = {
.name = "palmas-pinctrl",
.of_match_table = palmas_pinctrl_of_match,
},
.probe = palmas_pinctrl_probe,
.remove = palmas_pinctrl_remove,
};
module_platform_driver(palmas_pinctrl_driver);
MODULE_DESCRIPTION("Palmas pin control driver");
MODULE_AUTHOR("Laxman Dewangan<ldewangan@nvidia.com>");
MODULE_ALIAS("platform:palmas-pinctrl");
MODULE_LICENSE("GPL v2");
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