mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
695 lines
17 KiB
695 lines
17 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
/* |
|
* MediaTek Pinctrl Moore Driver, which implement the generic dt-binding |
|
* pinctrl-bindings.txt for MediaTek SoC. |
|
* |
|
* Copyright (C) 2017-2018 MediaTek Inc. |
|
* Author: Sean Wang <[email protected]> |
|
* |
|
*/ |
|
|
|
#include <linux/gpio/driver.h> |
|
#include "pinctrl-moore.h" |
|
|
|
#define PINCTRL_PINCTRL_DEV KBUILD_MODNAME |
|
|
|
/* Custom pinconf parameters */ |
|
#define MTK_PIN_CONFIG_TDSEL (PIN_CONFIG_END + 1) |
|
#define MTK_PIN_CONFIG_RDSEL (PIN_CONFIG_END + 2) |
|
#define MTK_PIN_CONFIG_PU_ADV (PIN_CONFIG_END + 3) |
|
#define MTK_PIN_CONFIG_PD_ADV (PIN_CONFIG_END + 4) |
|
|
|
static const struct pinconf_generic_params mtk_custom_bindings[] = { |
|
{"mediatek,tdsel", MTK_PIN_CONFIG_TDSEL, 0}, |
|
{"mediatek,rdsel", MTK_PIN_CONFIG_RDSEL, 0}, |
|
{"mediatek,pull-up-adv", MTK_PIN_CONFIG_PU_ADV, 1}, |
|
{"mediatek,pull-down-adv", MTK_PIN_CONFIG_PD_ADV, 1}, |
|
}; |
|
|
|
#ifdef CONFIG_DEBUG_FS |
|
static const struct pin_config_item mtk_conf_items[] = { |
|
PCONFDUMP(MTK_PIN_CONFIG_TDSEL, "tdsel", NULL, true), |
|
PCONFDUMP(MTK_PIN_CONFIG_RDSEL, "rdsel", NULL, true), |
|
PCONFDUMP(MTK_PIN_CONFIG_PU_ADV, "pu-adv", NULL, true), |
|
PCONFDUMP(MTK_PIN_CONFIG_PD_ADV, "pd-adv", NULL, true), |
|
}; |
|
#endif |
|
|
|
static int mtk_pinmux_set_mux(struct pinctrl_dev *pctldev, |
|
unsigned int selector, unsigned int group) |
|
{ |
|
struct mtk_pinctrl *hw = pinctrl_dev_get_drvdata(pctldev); |
|
struct function_desc *func; |
|
struct group_desc *grp; |
|
int i; |
|
|
|
func = pinmux_generic_get_function(pctldev, selector); |
|
if (!func) |
|
return -EINVAL; |
|
|
|
grp = pinctrl_generic_get_group(pctldev, group); |
|
if (!grp) |
|
return -EINVAL; |
|
|
|
dev_dbg(pctldev->dev, "enable function %s group %s\n", |
|
func->name, grp->name); |
|
|
|
for (i = 0; i < grp->num_pins; i++) { |
|
const struct mtk_pin_desc *desc; |
|
int *pin_modes = grp->data; |
|
int pin = grp->pins[i]; |
|
|
|
desc = (const struct mtk_pin_desc *)&hw->soc->pins[pin]; |
|
if (!desc->name) |
|
return -ENOTSUPP; |
|
|
|
mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_MODE, |
|
pin_modes[i]); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int mtk_pinmux_gpio_request_enable(struct pinctrl_dev *pctldev, |
|
struct pinctrl_gpio_range *range, |
|
unsigned int pin) |
|
{ |
|
struct mtk_pinctrl *hw = pinctrl_dev_get_drvdata(pctldev); |
|
const struct mtk_pin_desc *desc; |
|
|
|
desc = (const struct mtk_pin_desc *)&hw->soc->pins[pin]; |
|
if (!desc->name) |
|
return -ENOTSUPP; |
|
|
|
return mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_MODE, |
|
hw->soc->gpio_m); |
|
} |
|
|
|
static int mtk_pinmux_gpio_set_direction(struct pinctrl_dev *pctldev, |
|
struct pinctrl_gpio_range *range, |
|
unsigned int pin, bool input) |
|
{ |
|
struct mtk_pinctrl *hw = pinctrl_dev_get_drvdata(pctldev); |
|
const struct mtk_pin_desc *desc; |
|
|
|
desc = (const struct mtk_pin_desc *)&hw->soc->pins[pin]; |
|
if (!desc->name) |
|
return -ENOTSUPP; |
|
|
|
/* hardware would take 0 as input direction */ |
|
return mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_DIR, !input); |
|
} |
|
|
|
static int mtk_pinconf_get(struct pinctrl_dev *pctldev, |
|
unsigned int pin, unsigned long *config) |
|
{ |
|
struct mtk_pinctrl *hw = pinctrl_dev_get_drvdata(pctldev); |
|
u32 param = pinconf_to_config_param(*config); |
|
int val, val2, err, reg, ret = 1; |
|
const struct mtk_pin_desc *desc; |
|
|
|
desc = (const struct mtk_pin_desc *)&hw->soc->pins[pin]; |
|
if (!desc->name) |
|
return -ENOTSUPP; |
|
|
|
switch (param) { |
|
case PIN_CONFIG_BIAS_DISABLE: |
|
if (hw->soc->bias_disable_get) { |
|
err = hw->soc->bias_disable_get(hw, desc, &ret); |
|
if (err) |
|
return err; |
|
} else { |
|
return -ENOTSUPP; |
|
} |
|
break; |
|
case PIN_CONFIG_BIAS_PULL_UP: |
|
if (hw->soc->bias_get) { |
|
err = hw->soc->bias_get(hw, desc, 1, &ret); |
|
if (err) |
|
return err; |
|
} else { |
|
return -ENOTSUPP; |
|
} |
|
break; |
|
case PIN_CONFIG_BIAS_PULL_DOWN: |
|
if (hw->soc->bias_get) { |
|
err = hw->soc->bias_get(hw, desc, 0, &ret); |
|
if (err) |
|
return err; |
|
} else { |
|
return -ENOTSUPP; |
|
} |
|
break; |
|
case PIN_CONFIG_SLEW_RATE: |
|
err = mtk_hw_get_value(hw, desc, PINCTRL_PIN_REG_SR, &val); |
|
if (err) |
|
return err; |
|
|
|
if (!val) |
|
return -EINVAL; |
|
|
|
break; |
|
case PIN_CONFIG_INPUT_ENABLE: |
|
case PIN_CONFIG_OUTPUT_ENABLE: |
|
err = mtk_hw_get_value(hw, desc, PINCTRL_PIN_REG_DIR, &val); |
|
if (err) |
|
return err; |
|
|
|
/* HW takes input mode as zero; output mode as non-zero */ |
|
if ((val && param == PIN_CONFIG_INPUT_ENABLE) || |
|
(!val && param == PIN_CONFIG_OUTPUT_ENABLE)) |
|
return -EINVAL; |
|
|
|
break; |
|
case PIN_CONFIG_INPUT_SCHMITT_ENABLE: |
|
err = mtk_hw_get_value(hw, desc, PINCTRL_PIN_REG_DIR, &val); |
|
if (err) |
|
return err; |
|
|
|
err = mtk_hw_get_value(hw, desc, PINCTRL_PIN_REG_SMT, &val2); |
|
if (err) |
|
return err; |
|
|
|
if (val || !val2) |
|
return -EINVAL; |
|
|
|
break; |
|
case PIN_CONFIG_DRIVE_STRENGTH: |
|
if (hw->soc->drive_get) { |
|
err = hw->soc->drive_get(hw, desc, &ret); |
|
if (err) |
|
return err; |
|
} else { |
|
err = -ENOTSUPP; |
|
} |
|
break; |
|
case MTK_PIN_CONFIG_TDSEL: |
|
case MTK_PIN_CONFIG_RDSEL: |
|
reg = (param == MTK_PIN_CONFIG_TDSEL) ? |
|
PINCTRL_PIN_REG_TDSEL : PINCTRL_PIN_REG_RDSEL; |
|
|
|
err = mtk_hw_get_value(hw, desc, reg, &val); |
|
if (err) |
|
return err; |
|
|
|
ret = val; |
|
|
|
break; |
|
case MTK_PIN_CONFIG_PU_ADV: |
|
case MTK_PIN_CONFIG_PD_ADV: |
|
if (hw->soc->adv_pull_get) { |
|
bool pullup; |
|
|
|
pullup = param == MTK_PIN_CONFIG_PU_ADV; |
|
err = hw->soc->adv_pull_get(hw, desc, pullup, &ret); |
|
if (err) |
|
return err; |
|
} else { |
|
return -ENOTSUPP; |
|
} |
|
break; |
|
default: |
|
return -ENOTSUPP; |
|
} |
|
|
|
*config = pinconf_to_config_packed(param, ret); |
|
|
|
return 0; |
|
} |
|
|
|
static int mtk_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin, |
|
unsigned long *configs, unsigned int num_configs) |
|
{ |
|
struct mtk_pinctrl *hw = pinctrl_dev_get_drvdata(pctldev); |
|
const struct mtk_pin_desc *desc; |
|
u32 reg, param, arg; |
|
int cfg, err = 0; |
|
|
|
desc = (const struct mtk_pin_desc *)&hw->soc->pins[pin]; |
|
if (!desc->name) |
|
return -ENOTSUPP; |
|
|
|
for (cfg = 0; cfg < num_configs; cfg++) { |
|
param = pinconf_to_config_param(configs[cfg]); |
|
arg = pinconf_to_config_argument(configs[cfg]); |
|
|
|
switch (param) { |
|
case PIN_CONFIG_BIAS_DISABLE: |
|
if (hw->soc->bias_disable_set) { |
|
err = hw->soc->bias_disable_set(hw, desc); |
|
if (err) |
|
return err; |
|
} else { |
|
return -ENOTSUPP; |
|
} |
|
break; |
|
case PIN_CONFIG_BIAS_PULL_UP: |
|
if (hw->soc->bias_set) { |
|
err = hw->soc->bias_set(hw, desc, 1); |
|
if (err) |
|
return err; |
|
} else { |
|
return -ENOTSUPP; |
|
} |
|
break; |
|
case PIN_CONFIG_BIAS_PULL_DOWN: |
|
if (hw->soc->bias_set) { |
|
err = hw->soc->bias_set(hw, desc, 0); |
|
if (err) |
|
return err; |
|
} else { |
|
return -ENOTSUPP; |
|
} |
|
break; |
|
case PIN_CONFIG_OUTPUT_ENABLE: |
|
err = mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_SMT, |
|
MTK_DISABLE); |
|
if (err) |
|
goto err; |
|
|
|
err = mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_DIR, |
|
MTK_OUTPUT); |
|
if (err) |
|
goto err; |
|
break; |
|
case PIN_CONFIG_INPUT_ENABLE: |
|
|
|
if (hw->soc->ies_present) { |
|
mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_IES, |
|
MTK_ENABLE); |
|
} |
|
|
|
err = mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_DIR, |
|
MTK_INPUT); |
|
if (err) |
|
goto err; |
|
break; |
|
case PIN_CONFIG_SLEW_RATE: |
|
err = mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_SR, |
|
arg); |
|
if (err) |
|
goto err; |
|
|
|
break; |
|
case PIN_CONFIG_OUTPUT: |
|
err = mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_DIR, |
|
MTK_OUTPUT); |
|
if (err) |
|
goto err; |
|
|
|
err = mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_DO, |
|
arg); |
|
if (err) |
|
goto err; |
|
break; |
|
case PIN_CONFIG_INPUT_SCHMITT_ENABLE: |
|
/* arg = 1: Input mode & SMT enable ; |
|
* arg = 0: Output mode & SMT disable |
|
*/ |
|
arg = arg ? 2 : 1; |
|
err = mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_DIR, |
|
arg & 1); |
|
if (err) |
|
goto err; |
|
|
|
err = mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_SMT, |
|
!!(arg & 2)); |
|
if (err) |
|
goto err; |
|
break; |
|
case PIN_CONFIG_DRIVE_STRENGTH: |
|
if (hw->soc->drive_set) { |
|
err = hw->soc->drive_set(hw, desc, arg); |
|
if (err) |
|
return err; |
|
} else { |
|
err = -ENOTSUPP; |
|
} |
|
break; |
|
case MTK_PIN_CONFIG_TDSEL: |
|
case MTK_PIN_CONFIG_RDSEL: |
|
reg = (param == MTK_PIN_CONFIG_TDSEL) ? |
|
PINCTRL_PIN_REG_TDSEL : PINCTRL_PIN_REG_RDSEL; |
|
|
|
err = mtk_hw_set_value(hw, desc, reg, arg); |
|
if (err) |
|
goto err; |
|
break; |
|
case MTK_PIN_CONFIG_PU_ADV: |
|
case MTK_PIN_CONFIG_PD_ADV: |
|
if (hw->soc->adv_pull_set) { |
|
bool pullup; |
|
|
|
pullup = param == MTK_PIN_CONFIG_PU_ADV; |
|
err = hw->soc->adv_pull_set(hw, desc, pullup, |
|
arg); |
|
if (err) |
|
return err; |
|
} else { |
|
return -ENOTSUPP; |
|
} |
|
break; |
|
default: |
|
err = -ENOTSUPP; |
|
} |
|
} |
|
err: |
|
return err; |
|
} |
|
|
|
static int mtk_pinconf_group_get(struct pinctrl_dev *pctldev, |
|
unsigned int group, unsigned long *config) |
|
{ |
|
const unsigned int *pins; |
|
unsigned int i, npins, old = 0; |
|
int ret; |
|
|
|
ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins); |
|
if (ret) |
|
return ret; |
|
|
|
for (i = 0; i < npins; i++) { |
|
if (mtk_pinconf_get(pctldev, pins[i], config)) |
|
return -ENOTSUPP; |
|
|
|
/* configs do not match between two pins */ |
|
if (i && old != *config) |
|
return -ENOTSUPP; |
|
|
|
old = *config; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int mtk_pinconf_group_set(struct pinctrl_dev *pctldev, |
|
unsigned int group, unsigned long *configs, |
|
unsigned int num_configs) |
|
{ |
|
const unsigned int *pins; |
|
unsigned int i, npins; |
|
int ret; |
|
|
|
ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins); |
|
if (ret) |
|
return ret; |
|
|
|
for (i = 0; i < npins; i++) { |
|
ret = mtk_pinconf_set(pctldev, pins[i], configs, num_configs); |
|
if (ret) |
|
return ret; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static const struct pinctrl_ops mtk_pctlops = { |
|
.get_groups_count = pinctrl_generic_get_group_count, |
|
.get_group_name = pinctrl_generic_get_group_name, |
|
.get_group_pins = pinctrl_generic_get_group_pins, |
|
.dt_node_to_map = pinconf_generic_dt_node_to_map_all, |
|
.dt_free_map = pinconf_generic_dt_free_map, |
|
}; |
|
|
|
static const struct pinmux_ops mtk_pmxops = { |
|
.get_functions_count = pinmux_generic_get_function_count, |
|
.get_function_name = pinmux_generic_get_function_name, |
|
.get_function_groups = pinmux_generic_get_function_groups, |
|
.set_mux = mtk_pinmux_set_mux, |
|
.gpio_request_enable = mtk_pinmux_gpio_request_enable, |
|
.gpio_set_direction = mtk_pinmux_gpio_set_direction, |
|
.strict = true, |
|
}; |
|
|
|
static const struct pinconf_ops mtk_confops = { |
|
.is_generic = true, |
|
.pin_config_get = mtk_pinconf_get, |
|
.pin_config_set = mtk_pinconf_set, |
|
.pin_config_group_get = mtk_pinconf_group_get, |
|
.pin_config_group_set = mtk_pinconf_group_set, |
|
.pin_config_config_dbg_show = pinconf_generic_dump_config, |
|
}; |
|
|
|
static struct pinctrl_desc mtk_desc = { |
|
.name = PINCTRL_PINCTRL_DEV, |
|
.pctlops = &mtk_pctlops, |
|
.pmxops = &mtk_pmxops, |
|
.confops = &mtk_confops, |
|
.owner = THIS_MODULE, |
|
}; |
|
|
|
static int mtk_gpio_get(struct gpio_chip *chip, unsigned int gpio) |
|
{ |
|
struct mtk_pinctrl *hw = gpiochip_get_data(chip); |
|
const struct mtk_pin_desc *desc; |
|
int value, err; |
|
|
|
desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio]; |
|
if (!desc->name) |
|
return -ENOTSUPP; |
|
|
|
err = mtk_hw_get_value(hw, desc, PINCTRL_PIN_REG_DI, &value); |
|
if (err) |
|
return err; |
|
|
|
return !!value; |
|
} |
|
|
|
static void mtk_gpio_set(struct gpio_chip *chip, unsigned int gpio, int value) |
|
{ |
|
struct mtk_pinctrl *hw = gpiochip_get_data(chip); |
|
const struct mtk_pin_desc *desc; |
|
|
|
desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio]; |
|
if (!desc->name) { |
|
dev_err(hw->dev, "Failed to set gpio %d\n", gpio); |
|
return; |
|
} |
|
|
|
mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_DO, !!value); |
|
} |
|
|
|
static int mtk_gpio_direction_input(struct gpio_chip *chip, unsigned int gpio) |
|
{ |
|
return pinctrl_gpio_direction_input(chip->base + gpio); |
|
} |
|
|
|
static int mtk_gpio_direction_output(struct gpio_chip *chip, unsigned int gpio, |
|
int value) |
|
{ |
|
mtk_gpio_set(chip, gpio, value); |
|
|
|
return pinctrl_gpio_direction_output(chip->base + gpio); |
|
} |
|
|
|
static int mtk_gpio_to_irq(struct gpio_chip *chip, unsigned int offset) |
|
{ |
|
struct mtk_pinctrl *hw = gpiochip_get_data(chip); |
|
const struct mtk_pin_desc *desc; |
|
|
|
if (!hw->eint) |
|
return -ENOTSUPP; |
|
|
|
desc = (const struct mtk_pin_desc *)&hw->soc->pins[offset]; |
|
|
|
if (desc->eint.eint_n == (u16)EINT_NA) |
|
return -ENOTSUPP; |
|
|
|
return mtk_eint_find_irq(hw->eint, desc->eint.eint_n); |
|
} |
|
|
|
static int mtk_gpio_set_config(struct gpio_chip *chip, unsigned int offset, |
|
unsigned long config) |
|
{ |
|
struct mtk_pinctrl *hw = gpiochip_get_data(chip); |
|
const struct mtk_pin_desc *desc; |
|
u32 debounce; |
|
|
|
desc = (const struct mtk_pin_desc *)&hw->soc->pins[offset]; |
|
if (!desc->name) |
|
return -ENOTSUPP; |
|
|
|
if (!hw->eint || |
|
pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE || |
|
desc->eint.eint_n == (u16)EINT_NA) |
|
return -ENOTSUPP; |
|
|
|
debounce = pinconf_to_config_argument(config); |
|
|
|
return mtk_eint_set_debounce(hw->eint, desc->eint.eint_n, debounce); |
|
} |
|
|
|
static int mtk_build_gpiochip(struct mtk_pinctrl *hw) |
|
{ |
|
struct gpio_chip *chip = &hw->chip; |
|
int ret; |
|
|
|
chip->label = PINCTRL_PINCTRL_DEV; |
|
chip->parent = hw->dev; |
|
chip->request = gpiochip_generic_request; |
|
chip->free = gpiochip_generic_free; |
|
chip->direction_input = mtk_gpio_direction_input; |
|
chip->direction_output = mtk_gpio_direction_output; |
|
chip->get = mtk_gpio_get; |
|
chip->set = mtk_gpio_set; |
|
chip->to_irq = mtk_gpio_to_irq; |
|
chip->set_config = mtk_gpio_set_config; |
|
chip->base = -1; |
|
chip->ngpio = hw->soc->npins; |
|
chip->of_gpio_n_cells = 2; |
|
|
|
ret = gpiochip_add_data(chip, hw); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* Just for backward compatible for these old pinctrl nodes without |
|
* "gpio-ranges" property. Otherwise, called directly from a |
|
* DeviceTree-supported pinctrl driver is DEPRECATED. |
|
* Please see Section 2.1 of |
|
* Documentation/devicetree/bindings/gpio/gpio.txt on how to |
|
* bind pinctrl and gpio drivers via the "gpio-ranges" property. |
|
*/ |
|
if (!of_find_property(hw->dev->of_node, "gpio-ranges", NULL)) { |
|
ret = gpiochip_add_pin_range(chip, dev_name(hw->dev), 0, 0, |
|
chip->ngpio); |
|
if (ret < 0) { |
|
gpiochip_remove(chip); |
|
return ret; |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int mtk_build_groups(struct mtk_pinctrl *hw) |
|
{ |
|
int err, i; |
|
|
|
for (i = 0; i < hw->soc->ngrps; i++) { |
|
const struct group_desc *group = hw->soc->grps + i; |
|
|
|
err = pinctrl_generic_add_group(hw->pctrl, group->name, |
|
group->pins, group->num_pins, |
|
group->data); |
|
if (err < 0) { |
|
dev_err(hw->dev, "Failed to register group %s\n", |
|
group->name); |
|
return err; |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int mtk_build_functions(struct mtk_pinctrl *hw) |
|
{ |
|
int i, err; |
|
|
|
for (i = 0; i < hw->soc->nfuncs ; i++) { |
|
const struct function_desc *func = hw->soc->funcs + i; |
|
|
|
err = pinmux_generic_add_function(hw->pctrl, func->name, |
|
func->group_names, |
|
func->num_group_names, |
|
func->data); |
|
if (err < 0) { |
|
dev_err(hw->dev, "Failed to register function %s\n", |
|
func->name); |
|
return err; |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
int mtk_moore_pinctrl_probe(struct platform_device *pdev, |
|
const struct mtk_pin_soc *soc) |
|
{ |
|
struct device *dev = &pdev->dev; |
|
struct pinctrl_pin_desc *pins; |
|
struct mtk_pinctrl *hw; |
|
int err, i; |
|
|
|
hw = devm_kzalloc(&pdev->dev, sizeof(*hw), GFP_KERNEL); |
|
if (!hw) |
|
return -ENOMEM; |
|
|
|
hw->soc = soc; |
|
hw->dev = &pdev->dev; |
|
|
|
if (!hw->soc->nbase_names) |
|
return dev_err_probe(dev, -EINVAL, |
|
"SoC should be assigned at least one register base\n"); |
|
|
|
hw->base = devm_kmalloc_array(&pdev->dev, hw->soc->nbase_names, |
|
sizeof(*hw->base), GFP_KERNEL); |
|
if (!hw->base) |
|
return -ENOMEM; |
|
|
|
for (i = 0; i < hw->soc->nbase_names; i++) { |
|
hw->base[i] = devm_platform_ioremap_resource_byname(pdev, |
|
hw->soc->base_names[i]); |
|
if (IS_ERR(hw->base[i])) |
|
return PTR_ERR(hw->base[i]); |
|
} |
|
|
|
hw->nbase = hw->soc->nbase_names; |
|
|
|
spin_lock_init(&hw->lock); |
|
|
|
/* Copy from internal struct mtk_pin_desc to register to the core */ |
|
pins = devm_kmalloc_array(&pdev->dev, hw->soc->npins, sizeof(*pins), |
|
GFP_KERNEL); |
|
if (!pins) |
|
return -ENOMEM; |
|
|
|
for (i = 0; i < hw->soc->npins; i++) { |
|
pins[i].number = hw->soc->pins[i].number; |
|
pins[i].name = hw->soc->pins[i].name; |
|
} |
|
|
|
/* Setup pins descriptions per SoC types */ |
|
mtk_desc.pins = (const struct pinctrl_pin_desc *)pins; |
|
mtk_desc.npins = hw->soc->npins; |
|
mtk_desc.num_custom_params = ARRAY_SIZE(mtk_custom_bindings); |
|
mtk_desc.custom_params = mtk_custom_bindings; |
|
#ifdef CONFIG_DEBUG_FS |
|
mtk_desc.custom_conf_items = mtk_conf_items; |
|
#endif |
|
|
|
err = devm_pinctrl_register_and_init(&pdev->dev, &mtk_desc, hw, |
|
&hw->pctrl); |
|
if (err) |
|
return err; |
|
|
|
/* Setup groups descriptions per SoC types */ |
|
err = mtk_build_groups(hw); |
|
if (err) |
|
return dev_err_probe(dev, err, "Failed to build groups\n"); |
|
|
|
/* Setup functions descriptions per SoC types */ |
|
err = mtk_build_functions(hw); |
|
if (err) |
|
return dev_err_probe(dev, err, "Failed to build functions\n"); |
|
|
|
/* For able to make pinctrl_claim_hogs, we must not enable pinctrl |
|
* until all groups and functions are being added one. |
|
*/ |
|
err = pinctrl_enable(hw->pctrl); |
|
if (err) |
|
return err; |
|
|
|
err = mtk_build_eint(hw, pdev); |
|
if (err) |
|
dev_warn(&pdev->dev, |
|
"Failed to add EINT, but pinctrl still can work\n"); |
|
|
|
/* Build gpiochip should be after pinctrl_enable is done */ |
|
err = mtk_build_gpiochip(hw); |
|
if (err) |
|
return dev_err_probe(dev, err, "Failed to add gpio_chip\n"); |
|
|
|
platform_set_drvdata(pdev, hw); |
|
|
|
return 0; |
|
}
|
|
|