mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-20 08:22:39 +00:00
pinctrl: single: support generic pinconf
Support the operation of generic pinconf. The supported config arguments are INPUT_SCHMITT, INPUT_SCHMITT_ENABLE, DRIVE_STRENGHT, BIAS_DISABLE, BIAS_PULLUP, BIAS_PULLDOWN, SLEW_RATE. Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Haojian Zhuang
Linus Walleij
parent
477ac771dd
commit
9dddb4df90
@ -166,6 +166,7 @@ config PINCTRL_SINGLE
|
||||
depends on OF
|
||||
select PINMUX
|
||||
select PINCONF
|
||||
select GENERIC_PINCONF
|
||||
help
|
||||
This selects the device tree based generic pinctrl driver.
|
||||
|
||||
|
||||
@ -22,8 +22,10 @@
|
||||
|
||||
#include <linux/pinctrl/pinctrl.h>
|
||||
#include <linux/pinctrl/pinmux.h>
|
||||
#include <linux/pinctrl/pinconf-generic.h>
|
||||
|
||||
#include "core.h"
|
||||
#include "pinconf.h"
|
||||
|
||||
#define DRIVER_NAME "pinctrl-single"
|
||||
#define PCS_MUX_PINS_NAME "pinctrl-single,pins"
|
||||
@ -58,6 +60,33 @@ struct pcs_func_vals {
|
||||
unsigned mask;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct pcs_conf_vals - pinconf parameter, pinconf register offset
|
||||
* and value, enable, disable, mask
|
||||
* @param: config parameter
|
||||
* @val: user input bits in the pinconf register
|
||||
* @enable: enable bits in the pinconf register
|
||||
* @disable: disable bits in the pinconf register
|
||||
* @mask: mask bits in the register value
|
||||
*/
|
||||
struct pcs_conf_vals {
|
||||
enum pin_config_param param;
|
||||
unsigned val;
|
||||
unsigned enable;
|
||||
unsigned disable;
|
||||
unsigned mask;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct pcs_conf_type - pinconf property name, pinconf param pair
|
||||
* @name: property name in DTS file
|
||||
* @param: config parameter
|
||||
*/
|
||||
struct pcs_conf_type {
|
||||
const char *name;
|
||||
enum pin_config_param param;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct pcs_function - pinctrl function
|
||||
* @name: pinctrl function name
|
||||
@ -73,6 +102,8 @@ struct pcs_function {
|
||||
unsigned nvals;
|
||||
const char **pgnames;
|
||||
int npgnames;
|
||||
struct pcs_conf_vals *conf;
|
||||
int nconfs;
|
||||
struct list_head node;
|
||||
};
|
||||
|
||||
@ -131,6 +162,7 @@ struct pcs_name {
|
||||
* @fshift: function register shift
|
||||
* @foff: value to turn mux off
|
||||
* @fmax: max number of functions in fmask
|
||||
* @is_pinconf: whether supports pinconf
|
||||
* @names: array of register names for pins
|
||||
* @pins: physical pins on the SoC
|
||||
* @pgtree: pingroup index radix tree
|
||||
@ -157,6 +189,7 @@ struct pcs_device {
|
||||
unsigned foff;
|
||||
unsigned fmax;
|
||||
bool bits_per_mux;
|
||||
bool is_pinconf;
|
||||
struct pcs_name *names;
|
||||
struct pcs_data pins;
|
||||
struct radix_tree_root pgtree;
|
||||
@ -171,6 +204,16 @@ struct pcs_device {
|
||||
void (*write)(unsigned val, void __iomem *reg);
|
||||
};
|
||||
|
||||
static int pcs_pinconf_get(struct pinctrl_dev *pctldev, unsigned pin,
|
||||
unsigned long *config);
|
||||
static int pcs_pinconf_set(struct pinctrl_dev *pctldev, unsigned pin,
|
||||
unsigned long config);
|
||||
|
||||
static enum pin_config_param pcs_bias[] = {
|
||||
PIN_CONFIG_BIAS_PULL_DOWN,
|
||||
PIN_CONFIG_BIAS_PULL_UP,
|
||||
};
|
||||
|
||||
/*
|
||||
* REVISIT: Reads and writes could eventually use regmap or something
|
||||
* generic. But at least on omaps, some mux registers are performance
|
||||
@ -342,6 +385,28 @@ static int pcs_get_function_groups(struct pinctrl_dev *pctldev,
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int pcs_get_function(struct pinctrl_dev *pctldev, unsigned pin,
|
||||
struct pcs_function **func)
|
||||
{
|
||||
struct pcs_device *pcs = pinctrl_dev_get_drvdata(pctldev);
|
||||
struct pin_desc *pdesc = pin_desc_get(pctldev, pin);
|
||||
const struct pinctrl_setting_mux *setting;
|
||||
unsigned fselector;
|
||||
|
||||
/* If pin is not described in DTS & enabled, mux_setting is NULL. */
|
||||
setting = pdesc->mux_setting;
|
||||
if (!setting)
|
||||
return -ENOTSUPP;
|
||||
fselector = setting->func;
|
||||
*func = radix_tree_lookup(&pcs->ftree, fselector);
|
||||
if (!(*func)) {
|
||||
dev_err(pcs->dev, "%s could not find function%i\n",
|
||||
__func__, fselector);
|
||||
return -ENOTSUPP;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int pcs_enable(struct pinctrl_dev *pctldev, unsigned fselector,
|
||||
unsigned group)
|
||||
{
|
||||
@ -461,32 +526,191 @@ static const struct pinmux_ops pcs_pinmux_ops = {
|
||||
.gpio_request_enable = pcs_request_gpio,
|
||||
};
|
||||
|
||||
/* Clear BIAS value */
|
||||
static void pcs_pinconf_clear_bias(struct pinctrl_dev *pctldev, unsigned pin)
|
||||
{
|
||||
unsigned long config;
|
||||
int i;
|
||||
for (i = 0; i < ARRAY_SIZE(pcs_bias); i++) {
|
||||
config = pinconf_to_config_packed(pcs_bias[i], 0);
|
||||
pcs_pinconf_set(pctldev, pin, config);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Check whether PIN_CONFIG_BIAS_DISABLE is valid.
|
||||
* It's depend on that PULL_DOWN & PULL_UP configs are all invalid.
|
||||
*/
|
||||
static bool pcs_pinconf_bias_disable(struct pinctrl_dev *pctldev, unsigned pin)
|
||||
{
|
||||
unsigned long config;
|
||||
int i;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(pcs_bias); i++) {
|
||||
config = pinconf_to_config_packed(pcs_bias[i], 0);
|
||||
if (!pcs_pinconf_get(pctldev, pin, &config))
|
||||
goto out;
|
||||
}
|
||||
return true;
|
||||
out:
|
||||
return false;
|
||||
}
|
||||
|
||||
static int pcs_pinconf_get(struct pinctrl_dev *pctldev,
|
||||
unsigned pin, unsigned long *config)
|
||||
{
|
||||
struct pcs_device *pcs = pinctrl_dev_get_drvdata(pctldev);
|
||||
struct pcs_function *func;
|
||||
enum pin_config_param param;
|
||||
unsigned offset = 0, data = 0, i, j, ret;
|
||||
|
||||
ret = pcs_get_function(pctldev, pin, &func);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
for (i = 0; i < func->nconfs; i++) {
|
||||
param = pinconf_to_config_param(*config);
|
||||
if (param == PIN_CONFIG_BIAS_DISABLE) {
|
||||
if (pcs_pinconf_bias_disable(pctldev, pin)) {
|
||||
*config = 0;
|
||||
return 0;
|
||||
} else {
|
||||
return -ENOTSUPP;
|
||||
}
|
||||
} else if (param != func->conf[i].param) {
|
||||
continue;
|
||||
}
|
||||
|
||||
offset = pin * (pcs->width / BITS_PER_BYTE);
|
||||
data = pcs->read(pcs->base + offset) & func->conf[i].mask;
|
||||
switch (func->conf[i].param) {
|
||||
/* 4 parameters */
|
||||
case PIN_CONFIG_BIAS_PULL_DOWN:
|
||||
case PIN_CONFIG_BIAS_PULL_UP:
|
||||
case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
|
||||
if ((data != func->conf[i].enable) ||
|
||||
(data == func->conf[i].disable))
|
||||
return -ENOTSUPP;
|
||||
*config = 0;
|
||||
break;
|
||||
/* 2 parameters */
|
||||
case PIN_CONFIG_INPUT_SCHMITT:
|
||||
for (j = 0; j < func->nconfs; j++) {
|
||||
switch (func->conf[j].param) {
|
||||
case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
|
||||
if (data != func->conf[j].enable)
|
||||
return -ENOTSUPP;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
*config = data;
|
||||
break;
|
||||
case PIN_CONFIG_DRIVE_STRENGTH:
|
||||
case PIN_CONFIG_SLEW_RATE:
|
||||
default:
|
||||
*config = data;
|
||||
break;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
return -ENOTSUPP;
|
||||
}
|
||||
|
||||
static int pcs_pinconf_set(struct pinctrl_dev *pctldev,
|
||||
unsigned pin, unsigned long config)
|
||||
{
|
||||
struct pcs_device *pcs = pinctrl_dev_get_drvdata(pctldev);
|
||||
struct pcs_function *func;
|
||||
unsigned offset = 0, shift = 0, arg = 0, i, data, ret;
|
||||
u16 argument;
|
||||
|
||||
ret = pcs_get_function(pctldev, pin, &func);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
for (i = 0; i < func->nconfs; i++) {
|
||||
if (pinconf_to_config_param(config) == func->conf[i].param) {
|
||||
offset = pin * (pcs->width / BITS_PER_BYTE);
|
||||
data = pcs->read(pcs->base + offset);
|
||||
argument = pinconf_to_config_argument(config);
|
||||
switch (func->conf[i].param) {
|
||||
/* 2 parameters */
|
||||
case PIN_CONFIG_INPUT_SCHMITT:
|
||||
case PIN_CONFIG_DRIVE_STRENGTH:
|
||||
case PIN_CONFIG_SLEW_RATE:
|
||||
shift = ffs(func->conf[i].mask) - 1;
|
||||
arg = pinconf_to_config_argument(config);
|
||||
data &= ~func->conf[i].mask;
|
||||
data |= (arg << shift) & func->conf[i].mask;
|
||||
break;
|
||||
/* 4 parameters */
|
||||
case PIN_CONFIG_BIAS_DISABLE:
|
||||
pcs_pinconf_clear_bias(pctldev, pin);
|
||||
break;
|
||||
case PIN_CONFIG_BIAS_PULL_DOWN:
|
||||
case PIN_CONFIG_BIAS_PULL_UP:
|
||||
if (argument)
|
||||
pcs_pinconf_clear_bias(pctldev, pin);
|
||||
/* fall through */
|
||||
case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
|
||||
data &= ~func->conf[i].mask;
|
||||
if (argument)
|
||||
data |= func->conf[i].enable;
|
||||
else
|
||||
data |= func->conf[i].disable;
|
||||
break;
|
||||
default:
|
||||
return -ENOTSUPP;
|
||||
}
|
||||
pcs->write(data, pcs->base + offset);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
return -ENOTSUPP;
|
||||
}
|
||||
|
||||
static int pcs_pinconf_group_get(struct pinctrl_dev *pctldev,
|
||||
unsigned group, unsigned long *config)
|
||||
{
|
||||
const unsigned *pins;
|
||||
unsigned npins, old = 0;
|
||||
int i, ret;
|
||||
|
||||
ret = pcs_get_group_pins(pctldev, group, &pins, &npins);
|
||||
if (ret)
|
||||
return ret;
|
||||
for (i = 0; i < npins; i++) {
|
||||
if (pcs_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 pcs_pinconf_group_set(struct pinctrl_dev *pctldev,
|
||||
unsigned group, unsigned long config)
|
||||
{
|
||||
const unsigned *pins;
|
||||
unsigned npins;
|
||||
int i, ret;
|
||||
|
||||
ret = pcs_get_group_pins(pctldev, group, &pins, &npins);
|
||||
if (ret)
|
||||
return ret;
|
||||
for (i = 0; i < npins; i++) {
|
||||
if (pcs_pinconf_set(pctldev, pins[i], config))
|
||||
return -ENOTSUPP;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void pcs_pinconf_dbg_show(struct pinctrl_dev *pctldev,
|
||||
struct seq_file *s, unsigned offset)
|
||||
struct seq_file *s, unsigned pin)
|
||||
{
|
||||
}
|
||||
|
||||
@ -495,6 +719,13 @@ static void pcs_pinconf_group_dbg_show(struct pinctrl_dev *pctldev,
|
||||
{
|
||||
}
|
||||
|
||||
static void pcs_pinconf_config_dbg_show(struct pinctrl_dev *pctldev,
|
||||
struct seq_file *s,
|
||||
unsigned long config)
|
||||
{
|
||||
pinconf_generic_dump_config(pctldev, s, config);
|
||||
}
|
||||
|
||||
static const struct pinconf_ops pcs_pinconf_ops = {
|
||||
.pin_config_get = pcs_pinconf_get,
|
||||
.pin_config_set = pcs_pinconf_set,
|
||||
@ -502,6 +733,7 @@ static const struct pinconf_ops pcs_pinconf_ops = {
|
||||
.pin_config_group_set = pcs_pinconf_group_set,
|
||||
.pin_config_dbg_show = pcs_pinconf_dbg_show,
|
||||
.pin_config_group_dbg_show = pcs_pinconf_group_dbg_show,
|
||||
.pin_config_config_dbg_show = pcs_pinconf_config_dbg_show,
|
||||
};
|
||||
|
||||
/**
|
||||
@ -692,11 +924,157 @@ static int pcs_get_pin_by_offset(struct pcs_device *pcs, unsigned offset)
|
||||
return index;
|
||||
}
|
||||
|
||||
/*
|
||||
* check whether data matches enable bits or disable bits
|
||||
* Return value: 1 for matching enable bits, 0 for matching disable bits,
|
||||
* and negative value for matching failure.
|
||||
*/
|
||||
static int pcs_config_match(unsigned data, unsigned enable, unsigned disable)
|
||||
{
|
||||
int ret = -EINVAL;
|
||||
|
||||
if (data == enable)
|
||||
ret = 1;
|
||||
else if (data == disable)
|
||||
ret = 0;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void add_config(struct pcs_conf_vals **conf, enum pin_config_param param,
|
||||
unsigned value, unsigned enable, unsigned disable,
|
||||
unsigned mask)
|
||||
{
|
||||
(*conf)->param = param;
|
||||
(*conf)->val = value;
|
||||
(*conf)->enable = enable;
|
||||
(*conf)->disable = disable;
|
||||
(*conf)->mask = mask;
|
||||
(*conf)++;
|
||||
}
|
||||
|
||||
static void add_setting(unsigned long **setting, enum pin_config_param param,
|
||||
unsigned arg)
|
||||
{
|
||||
**setting = pinconf_to_config_packed(param, arg);
|
||||
(*setting)++;
|
||||
}
|
||||
|
||||
/* add pinconf setting with 2 parameters */
|
||||
static void pcs_add_conf2(struct pcs_device *pcs, struct device_node *np,
|
||||
const char *name, enum pin_config_param param,
|
||||
struct pcs_conf_vals **conf, unsigned long **settings)
|
||||
{
|
||||
unsigned value[2];
|
||||
int ret;
|
||||
|
||||
ret = of_property_read_u32_array(np, name, value, 2);
|
||||
if (ret)
|
||||
return;
|
||||
/* set value & mask */
|
||||
value[0] &= value[1];
|
||||
/* skip enable & disable */
|
||||
add_config(conf, param, value[0], 0, 0, value[1]);
|
||||
add_setting(settings, param, value[0]);
|
||||
}
|
||||
|
||||
/* add pinconf setting with 4 parameters */
|
||||
static void pcs_add_conf4(struct pcs_device *pcs, struct device_node *np,
|
||||
const char *name, enum pin_config_param param,
|
||||
struct pcs_conf_vals **conf, unsigned long **settings)
|
||||
{
|
||||
unsigned value[4];
|
||||
int ret;
|
||||
|
||||
/* value to set, enable, disable, mask */
|
||||
ret = of_property_read_u32_array(np, name, value, 4);
|
||||
if (ret)
|
||||
return;
|
||||
if (!value[3]) {
|
||||
dev_err(pcs->dev, "mask field of the property can't be 0\n");
|
||||
return;
|
||||
}
|
||||
value[0] &= value[3];
|
||||
value[1] &= value[3];
|
||||
value[2] &= value[3];
|
||||
ret = pcs_config_match(value[0], value[1], value[2]);
|
||||
if (ret < 0)
|
||||
dev_dbg(pcs->dev, "failed to match enable or disable bits\n");
|
||||
add_config(conf, param, value[0], value[1], value[2], value[3]);
|
||||
add_setting(settings, param, ret);
|
||||
}
|
||||
|
||||
static int pcs_parse_pinconf(struct pcs_device *pcs, struct device_node *np,
|
||||
struct pcs_function *func,
|
||||
struct pinctrl_map **map)
|
||||
|
||||
{
|
||||
struct pinctrl_map *m = *map;
|
||||
int i = 0, nconfs = 0;
|
||||
unsigned long *settings = NULL, *s = NULL;
|
||||
struct pcs_conf_vals *conf = NULL;
|
||||
struct pcs_conf_type prop2[] = {
|
||||
{ "pinctrl-single,drive-strength", PIN_CONFIG_DRIVE_STRENGTH, },
|
||||
{ "pinctrl-single,slew-rate", PIN_CONFIG_SLEW_RATE, },
|
||||
{ "pinctrl-single,input-schmitt", PIN_CONFIG_INPUT_SCHMITT, },
|
||||
};
|
||||
struct pcs_conf_type prop4[] = {
|
||||
{ "pinctrl-single,bias-pullup", PIN_CONFIG_BIAS_PULL_UP, },
|
||||
{ "pinctrl-single,bias-pulldown", PIN_CONFIG_BIAS_PULL_DOWN, },
|
||||
{ "pinctrl-single,input-schmitt-enable",
|
||||
PIN_CONFIG_INPUT_SCHMITT_ENABLE, },
|
||||
};
|
||||
|
||||
/* If pinconf isn't supported, don't parse properties in below. */
|
||||
if (!pcs->is_pinconf)
|
||||
return 0;
|
||||
|
||||
/* cacluate how much properties are supported in current node */
|
||||
for (i = 0; i < ARRAY_SIZE(prop2); i++) {
|
||||
if (of_find_property(np, prop2[i].name, NULL))
|
||||
nconfs++;
|
||||
}
|
||||
for (i = 0; i < ARRAY_SIZE(prop4); i++) {
|
||||
if (of_find_property(np, prop4[i].name, NULL))
|
||||
nconfs++;
|
||||
}
|
||||
if (!nconfs)
|
||||
return 0;
|
||||
|
||||
func->conf = devm_kzalloc(pcs->dev,
|
||||
sizeof(struct pcs_conf_vals) * nconfs,
|
||||
GFP_KERNEL);
|
||||
if (!func->conf)
|
||||
return -ENOMEM;
|
||||
func->nconfs = nconfs;
|
||||
conf = &(func->conf[0]);
|
||||
m++;
|
||||
settings = devm_kzalloc(pcs->dev, sizeof(unsigned long) * nconfs,
|
||||
GFP_KERNEL);
|
||||
if (!settings)
|
||||
return -ENOMEM;
|
||||
s = &settings[0];
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(prop2); i++)
|
||||
pcs_add_conf2(pcs, np, prop2[i].name, prop2[i].param,
|
||||
&conf, &s);
|
||||
for (i = 0; i < ARRAY_SIZE(prop4); i++)
|
||||
pcs_add_conf4(pcs, np, prop4[i].name, prop4[i].param,
|
||||
&conf, &s);
|
||||
m->type = PIN_MAP_TYPE_CONFIGS_GROUP;
|
||||
m->data.configs.group_or_pin = np->name;
|
||||
m->data.configs.configs = settings;
|
||||
m->data.configs.num_configs = nconfs;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void pcs_free_pingroups(struct pcs_device *pcs);
|
||||
|
||||
/**
|
||||
* smux_parse_one_pinctrl_entry() - parses a device tree mux entry
|
||||
* @pcs: pinctrl driver instance
|
||||
* @np: device node of the mux entry
|
||||
* @map: map entry
|
||||
* @num_maps: number of map
|
||||
* @pgnames: pingroup names
|
||||
*
|
||||
* Note that this binding currently supports only sets of one register + value.
|
||||
@ -713,6 +1091,7 @@ static int pcs_get_pin_by_offset(struct pcs_device *pcs, unsigned offset)
|
||||
static int pcs_parse_one_pinctrl_entry(struct pcs_device *pcs,
|
||||
struct device_node *np,
|
||||
struct pinctrl_map **map,
|
||||
unsigned *num_maps,
|
||||
const char **pgnames)
|
||||
{
|
||||
struct pcs_func_vals *vals;
|
||||
@ -785,8 +1164,18 @@ static int pcs_parse_one_pinctrl_entry(struct pcs_device *pcs,
|
||||
(*map)->data.mux.group = np->name;
|
||||
(*map)->data.mux.function = np->name;
|
||||
|
||||
if (pcs->is_pinconf) {
|
||||
if (pcs_parse_pinconf(pcs, np, function, map))
|
||||
goto free_pingroups;
|
||||
*num_maps = 2;
|
||||
} else {
|
||||
*num_maps = 1;
|
||||
}
|
||||
return 0;
|
||||
|
||||
free_pingroups:
|
||||
pcs_free_pingroups(pcs);
|
||||
*num_maps = 1;
|
||||
free_function:
|
||||
pcs_remove_function(pcs, function);
|
||||
|
||||
@ -815,7 +1204,8 @@ static int pcs_dt_node_to_map(struct pinctrl_dev *pctldev,
|
||||
|
||||
pcs = pinctrl_dev_get_drvdata(pctldev);
|
||||
|
||||
*map = devm_kzalloc(pcs->dev, sizeof(**map), GFP_KERNEL);
|
||||
/* create 2 maps. One is for pinmux, and the other is for pinconf. */
|
||||
*map = devm_kzalloc(pcs->dev, sizeof(**map) * 2, GFP_KERNEL);
|
||||
if (!*map)
|
||||
return -ENOMEM;
|
||||
|
||||
@ -827,13 +1217,13 @@ static int pcs_dt_node_to_map(struct pinctrl_dev *pctldev,
|
||||
goto free_map;
|
||||
}
|
||||
|
||||
ret = pcs_parse_one_pinctrl_entry(pcs, np_config, map, pgnames);
|
||||
ret = pcs_parse_one_pinctrl_entry(pcs, np_config, map, num_maps,
|
||||
pgnames);
|
||||
if (ret < 0) {
|
||||
dev_err(pcs->dev, "no pins entries for %s\n",
|
||||
np_config->name);
|
||||
goto free_pgnames;
|
||||
}
|
||||
*num_maps = 1;
|
||||
|
||||
return 0;
|
||||
|
||||
@ -976,6 +1366,7 @@ static int pcs_probe(struct platform_device *pdev)
|
||||
INIT_LIST_HEAD(&pcs->pingroups);
|
||||
INIT_LIST_HEAD(&pcs->functions);
|
||||
INIT_LIST_HEAD(&pcs->gpiofuncs);
|
||||
pcs->is_pinconf = match->data;
|
||||
|
||||
PCS_GET_PROP_U32("pinctrl-single,register-width", &pcs->width,
|
||||
"register width not specified\n");
|
||||
@ -1046,6 +1437,8 @@ static int pcs_probe(struct platform_device *pdev)
|
||||
pcs->desc.pmxops = &pcs_pinmux_ops;
|
||||
pcs->desc.confops = &pcs_pinconf_ops;
|
||||
pcs->desc.owner = THIS_MODULE;
|
||||
if (match->data)
|
||||
pcs_pinconf_ops.is_generic = true;
|
||||
|
||||
ret = pcs_allocate_pin_table(pcs);
|
||||
if (ret < 0)
|
||||
@ -1086,7 +1479,8 @@ static int pcs_remove(struct platform_device *pdev)
|
||||
}
|
||||
|
||||
static struct of_device_id pcs_of_match[] = {
|
||||
{ .compatible = DRIVER_NAME, },
|
||||
{ .compatible = "pinctrl-single", .data = (void *)false },
|
||||
{ .compatible = "pinconf-single", .data = (void *)true },
|
||||
{ },
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, pcs_of_match);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user