struct kcs_bmc *kcs_bmc_alloc(struct device *dev, int sizeof_priv, u32 channel)
{
struct kcs_bmc *kcs_bmc;
kcs_bmc = devm_kzalloc(dev, sizeof(*kcs_bmc) + sizeof_priv, GFP_KERNEL);
if (!kcs_bmc)
return NULL;
spin_lock_init(&kcs_bmc->lock);
kcs_bmc->channel = channel;
mutex_init(&kcs_bmc->mutex);
init_waitqueue_head(&kcs_bmc->queue);
kcs_bmc->data_in = devm_kmalloc(dev, KCS_MSG_BUFSIZ, GFP_KERNEL);
kcs_bmc->data_out = devm_kmalloc(dev, KCS_MSG_BUFSIZ, GFP_KERNEL);
kcs_bmc->kbuffer = devm_kmalloc(dev, KCS_MSG_BUFSIZ, GFP_KERNEL);
kcs_bmc->miscdev.minor = MISC_DYNAMIC_MINOR;
kcs_bmc->miscdev.name = devm_kasprintf(dev, GFP_KERNEL, "%s%u",
DEVICE_NAME, channel);
if (!kcs_bmc->data_in || !kcs_bmc->data_out || !kcs_bmc->kbuffer ||
!kcs_bmc->miscdev.name)
return NULL;
kcs_bmc->miscdev.fops = &kcs_bmc_fops;
return kcs_bmc;
}
int mmc_gpio_alloc(struct mmc_host *host)
{
struct mmc_gpio *ctx = devm_kzalloc(host->parent,
sizeof(*ctx), GFP_KERNEL);
if (ctx) {
ctx->cd_debounce_delay_ms = 200;
ctx->cd_label = devm_kasprintf(host->parent, GFP_KERNEL,
"%s cd", dev_name(host->parent));
if (!ctx->cd_label)
return -ENOMEM;
ctx->ro_label = devm_kasprintf(host->parent, GFP_KERNEL,
"%s ro", dev_name(host->parent));
if (!ctx->ro_label)
return -ENOMEM;
host->slot.handler_priv = ctx;
host->slot.cd_irq = -EINVAL;
}
return ctx ? 0 : -ENOMEM;
}
static int u2fzero_init_hwrng(struct u2fzero_device *dev,
unsigned int minor)
{
dev->rng_name = devm_kasprintf(&dev->hdev->dev, GFP_KERNEL,
"%s-rng%u", DRIVER_SHORT, minor);
if (dev->rng_name == NULL)
return -ENOMEM;
dev->hwrng.name = dev->rng_name;
dev->hwrng.read = u2fzero_rng_read;
dev->hwrng.quality = 1;
return devm_hwrng_register(&dev->hdev->dev, &dev->hwrng);
}
static int bq27x00_battery_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
char *name;
struct bq27x00_device_info *di;
int num;
int retval = 0;
/* Get new ID for the new battery device */
mutex_lock(&battery_mutex);
num = idr_alloc(&battery_id, client, 0, 0, GFP_KERNEL);
mutex_unlock(&battery_mutex);
if (num < 0)
return num;
name = devm_kasprintf(&client->dev, GFP_KERNEL, "%s-%d", id->name, num);
if (!name) {
dev_err(&client->dev, "failed to allocate device name\n");
retval = -ENOMEM;
goto batt_failed;
}
di = devm_kzalloc(&client->dev, sizeof(*di), GFP_KERNEL);
if (!di) {
dev_err(&client->dev, "failed to allocate device info data\n");
retval = -ENOMEM;
goto batt_failed;
}
di->id = num;
di->dev = &client->dev;
di->chip = id->driver_data;
di->bus.read = &bq27x00_read_i2c;
retval = bq27x00_powersupply_init(di, name);
if (retval)
goto batt_failed;
i2c_set_clientdata(client, di);
return 0;
batt_failed:
mutex_lock(&battery_mutex);
idr_remove(&battery_id, num);
mutex_unlock(&battery_mutex);
return retval;
}
static int u2fzero_init_led(struct u2fzero_device *dev,
unsigned int minor)
{
dev->led_name = devm_kasprintf(&dev->hdev->dev, GFP_KERNEL,
"%s%u", DRIVER_SHORT, minor);
if (dev->led_name == NULL)
return -ENOMEM;
dev->ldev.name = dev->led_name;
dev->ldev.max_brightness = LED_ON;
dev->ldev.flags = LED_HW_PLUGGABLE;
dev->ldev.brightness_set_blocking = u2fzero_brightness_set;
return devm_led_classdev_register(&dev->hdev->dev, &dev->ldev);
}
/**
* powernv_flash_set_driver_info - Fill the mtd_info structure and docg3
* structure @pdev: The platform device
* @mtd: The structure to fill
*/
static int powernv_flash_set_driver_info(struct device *dev,
struct mtd_info *mtd)
{
u64 size;
u32 erase_size;
int rc;
rc = of_property_read_u32(dev->of_node, "ibm,flash-block-size",
&erase_size);
if (rc) {
dev_err(dev, "couldn't get resource block size information\n");
return rc;
}
rc = of_property_read_u64(dev->of_node, "reg", &size);
if (rc) {
dev_err(dev, "couldn't get resource size information\n");
return rc;
}
/*
* Going to have to check what details I need to set and how to
* get them
*/
mtd->name = devm_kasprintf(dev, GFP_KERNEL, "%pOFP", dev->of_node);
mtd->type = MTD_NORFLASH;
mtd->flags = MTD_WRITEABLE;
mtd->size = size;
mtd->erasesize = erase_size;
mtd->writebufsize = mtd->writesize = 1;
mtd->owner = THIS_MODULE;
mtd->_erase = powernv_flash_erase;
mtd->_read = powernv_flash_read;
mtd->_write = powernv_flash_write;
mtd->dev.parent = dev;
mtd_set_of_node(mtd, dev->of_node);
return 0;
}
static struct regmap *meson_map_resource(struct meson_pinctrl *pc,
struct device_node *node, char *name)
{
struct resource res;
void __iomem *base;
int i;
i = of_property_match_string(node, "reg-names", name);
if (of_address_to_resource(node, i, &res))
return ERR_PTR(-ENOENT);
base = devm_ioremap_resource(pc->dev, &res);
if (IS_ERR(base))
return ERR_CAST(base);
meson_regmap_config.max_register = resource_size(&res) - 4;
meson_regmap_config.name = devm_kasprintf(pc->dev, GFP_KERNEL,
"%s-%s", node->name,
name);
if (!meson_regmap_config.name)
return ERR_PTR(-ENOMEM);
return devm_regmap_init_mmio(pc->dev, base, &meson_regmap_config);
}
int tsc200x_probe(struct device *dev, int irq, const struct input_id *tsc_id,
struct regmap *regmap,
int (*tsc200x_cmd)(struct device *dev, u8 cmd))
{
const struct tsc2005_platform_data *pdata = dev_get_platdata(dev);
struct device_node *np = dev->of_node;
struct tsc200x *ts;
struct input_dev *input_dev;
unsigned int max_x = MAX_12BIT;
unsigned int max_y = MAX_12BIT;
unsigned int max_p = MAX_12BIT;
unsigned int fudge_x = TSC200X_DEF_X_FUZZ;
unsigned int fudge_y = TSC200X_DEF_Y_FUZZ;
unsigned int fudge_p = TSC200X_DEF_P_FUZZ;
unsigned int x_plate_ohm = TSC200X_DEF_RESISTOR;
unsigned int esd_timeout;
int error;
if (!np && !pdata) {
dev_err(dev, "no platform data\n");
return -ENODEV;
}
if (irq <= 0) {
dev_err(dev, "no irq\n");
return -ENODEV;
}
if (IS_ERR(regmap))
return PTR_ERR(regmap);
if (!tsc200x_cmd) {
dev_err(dev, "no cmd function\n");
return -ENODEV;
}
if (pdata) {
fudge_x = pdata->ts_x_fudge;
fudge_y = pdata->ts_y_fudge;
fudge_p = pdata->ts_pressure_fudge;
max_x = pdata->ts_x_max;
max_y = pdata->ts_y_max;
max_p = pdata->ts_pressure_max;
x_plate_ohm = pdata->ts_x_plate_ohm;
esd_timeout = pdata->esd_timeout_ms;
} else {
x_plate_ohm = TSC200X_DEF_RESISTOR;
of_property_read_u32(np, "ti,x-plate-ohms", &x_plate_ohm);
esd_timeout = 0;
of_property_read_u32(np, "ti,esd-recovery-timeout-ms",
&esd_timeout);
}
ts = devm_kzalloc(dev, sizeof(*ts), GFP_KERNEL);
if (!ts)
return -ENOMEM;
input_dev = devm_input_allocate_device(dev);
if (!input_dev)
return -ENOMEM;
ts->irq = irq;
ts->dev = dev;
ts->idev = input_dev;
ts->regmap = regmap;
ts->tsc200x_cmd = tsc200x_cmd;
ts->x_plate_ohm = x_plate_ohm;
ts->esd_timeout = esd_timeout;
ts->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(ts->reset_gpio)) {
error = PTR_ERR(ts->reset_gpio);
dev_err(dev, "error acquiring reset gpio: %d\n", error);
return error;
}
ts->vio = devm_regulator_get_optional(dev, "vio");
if (IS_ERR(ts->vio)) {
error = PTR_ERR(ts->vio);
dev_err(dev, "vio regulator missing (%d)", error);
return error;
}
if (!ts->reset_gpio && pdata)
ts->set_reset = pdata->set_reset;
mutex_init(&ts->mutex);
spin_lock_init(&ts->lock);
setup_timer(&ts->penup_timer, tsc200x_penup_timer, (unsigned long)ts);
INIT_DELAYED_WORK(&ts->esd_work, tsc200x_esd_work);
snprintf(ts->phys, sizeof(ts->phys),
"%s/input-ts", dev_name(dev));
if (tsc_id->product == 2004) {
input_dev->name = "TSC200X touchscreen";
} else {
input_dev->name = devm_kasprintf(dev, GFP_KERNEL,
"TSC%04d touchscreen",
tsc_id->product);
if (!input_dev->name)
return -ENOMEM;
}
input_dev->phys = ts->phys;
input_dev->id = *tsc_id;
input_dev->dev.parent = dev;
input_dev->evbit[0] = BIT(EV_ABS) | BIT(EV_KEY);
input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
input_set_abs_params(input_dev, ABS_X, 0, max_x, fudge_x, 0);
input_set_abs_params(input_dev, ABS_Y, 0, max_y, fudge_y, 0);
input_set_abs_params(input_dev, ABS_PRESSURE, 0, max_p, fudge_p, 0);
if (np)
touchscreen_parse_properties(input_dev, false, NULL);
input_dev->open = tsc200x_open;
input_dev->close = tsc200x_close;
input_set_drvdata(input_dev, ts);
/* Ensure the touchscreen is off */
tsc200x_stop_scan(ts);
error = devm_request_threaded_irq(dev, irq, NULL,
tsc200x_irq_thread,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
"tsc200x", ts);
if (error) {
dev_err(dev, "Failed to request irq, err: %d\n", error);
return error;
}
/* enable regulator for DT */
if (ts->vio) {
error = regulator_enable(ts->vio);
if (error)
return error;
}
dev_set_drvdata(dev, ts);
error = sysfs_create_group(&dev->kobj, &tsc200x_attr_group);
if (error) {
dev_err(dev,
"Failed to create sysfs attributes, err: %d\n", error);
goto disable_regulator;
}
error = input_register_device(ts->idev);
if (error) {
dev_err(dev,
"Failed to register input device, err: %d\n", error);
goto err_remove_sysfs;
}
irq_set_irq_wake(irq, 1);
return 0;
err_remove_sysfs:
sysfs_remove_group(&dev->kobj, &tsc200x_attr_group);
disable_regulator:
if (ts->vio)
regulator_disable(ts->vio);
return error;
}
static int bq27xxx_battery_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct bq27xxx_device_info *di;
int ret;
char *name;
int num;
/* Get new ID for the new battery device */
mutex_lock(&battery_mutex);
num = idr_alloc(&battery_id, client, 0, 0, GFP_KERNEL);
mutex_unlock(&battery_mutex);
if (num < 0)
return num;
name = devm_kasprintf(&client->dev, GFP_KERNEL, "%s-%d", id->name, num);
if (!name)
goto err_mem;
di = devm_kzalloc(&client->dev, sizeof(*di), GFP_KERNEL);
if (!di)
goto err_mem;
di->id = num;
di->dev = &client->dev;
di->chip = id->driver_data;
di->name = name;
di->bus.read = bq27xxx_battery_i2c_read;
ret = bq27xxx_battery_setup(di);
if (ret)
goto err_failed;
/* Schedule a polling after about 1 min */
schedule_delayed_work(&di->work, 60 * HZ);
i2c_set_clientdata(client, di);
if (client->irq) {
ret = devm_request_threaded_irq(&client->dev, client->irq,
NULL, bq27xxx_battery_irq_handler_thread,
IRQF_ONESHOT,
di->name, di);
if (ret) {
dev_err(&client->dev,
"Unable to register IRQ %d error %d\n",
client->irq, ret);
return ret;
}
}
return 0;
err_mem:
ret = -ENOMEM;
err_failed:
mutex_lock(&battery_mutex);
idr_remove(&battery_id, num);
mutex_unlock(&battery_mutex);
return ret;
}
static int bq24735_charger_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int ret;
struct bq24735 *charger;
struct power_supply_desc *supply_desc;
struct power_supply_config psy_cfg = {};
char *name;
charger = devm_kzalloc(&client->dev, sizeof(*charger), GFP_KERNEL);
if (!charger)
return -ENOMEM;
charger->pdata = client->dev.platform_data;
if (IS_ENABLED(CONFIG_OF) && !charger->pdata && client->dev.of_node)
charger->pdata = bq24735_parse_dt_data(client);
if (!charger->pdata) {
dev_err(&client->dev, "no platform data provided\n");
return -EINVAL;
}
name = (char *)charger->pdata->name;
if (!name) {
name = devm_kasprintf(&client->dev, GFP_KERNEL,
"bq24735@%s",
dev_name(&client->dev));
if (!name) {
dev_err(&client->dev, "Failed to alloc device name\n");
return -ENOMEM;
}
}
charger->client = client;
supply_desc = &charger->charger_desc;
supply_desc->name = name;
supply_desc->type = POWER_SUPPLY_TYPE_MAINS;
supply_desc->properties = bq24735_charger_properties;
supply_desc->num_properties = ARRAY_SIZE(bq24735_charger_properties);
supply_desc->get_property = bq24735_charger_get_property;
psy_cfg.supplied_to = charger->pdata->supplied_to;
psy_cfg.num_supplicants = charger->pdata->num_supplicants;
psy_cfg.of_node = client->dev.of_node;
psy_cfg.drv_data = charger;
i2c_set_clientdata(client, charger);
ret = bq24735_read_word(client, BQ24735_MANUFACTURER_ID);
if (ret < 0) {
dev_err(&client->dev, "Failed to read manufacturer id : %d\n",
ret);
return ret;
} else if (ret != 0x0040) {
dev_err(&client->dev,
"manufacturer id mismatch. 0x0040 != 0x%04x\n", ret);
return -ENODEV;
}
ret = bq24735_read_word(client, BQ24735_DEVICE_ID);
if (ret < 0) {
dev_err(&client->dev, "Failed to read device id : %d\n", ret);
return ret;
} else if (ret != 0x000B) {
dev_err(&client->dev,
"device id mismatch. 0x000b != 0x%04x\n", ret);
return -ENODEV;
}
if (gpio_is_valid(charger->pdata->status_gpio)) {
ret = devm_gpio_request(&client->dev,
charger->pdata->status_gpio,
name);
if (ret) {
dev_err(&client->dev,
"Failed GPIO request for GPIO %d: %d\n",
charger->pdata->status_gpio, ret);
}
charger->pdata->status_gpio_valid = !ret;
}
ret = bq24735_config_charger(charger);
if (ret < 0) {
dev_err(&client->dev, "failed in configuring charger");
return ret;
}
/* check for AC adapter presence */
if (bq24735_charger_is_present(charger)) {
ret = bq24735_enable_charging(charger);
if (ret < 0) {
dev_err(&client->dev, "Failed to enable charging\n");
return ret;
}
}
charger->charger = devm_power_supply_register(&client->dev, supply_desc,
&psy_cfg);
if (IS_ERR(charger->charger)) {
ret = PTR_ERR(charger->charger);
dev_err(&client->dev, "Failed to register power supply: %d\n",
ret);
return ret;
}
if (client->irq) {
ret = devm_request_threaded_irq(&client->dev, client->irq,
NULL, bq24735_charger_isr,
IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING |
IRQF_ONESHOT,
supply_desc->name,
charger->charger);
if (ret) {
dev_err(&client->dev,
"Unable to register IRQ %d err %d\n",
client->irq, ret);
return ret;
}
}
return 0;
}
int tsc200x_probe(struct device *dev, int irq, const struct input_id *tsc_id,
struct regmap *regmap,
int (*tsc200x_cmd)(struct device *dev, u8 cmd))
{
struct tsc200x *ts;
struct input_dev *input_dev;
u32 x_plate_ohm;
u32 esd_timeout;
int error;
if (irq <= 0) {
dev_err(dev, "no irq\n");
return -ENODEV;
}
if (IS_ERR(regmap))
return PTR_ERR(regmap);
if (!tsc200x_cmd) {
dev_err(dev, "no cmd function\n");
return -ENODEV;
}
ts = devm_kzalloc(dev, sizeof(*ts), GFP_KERNEL);
if (!ts)
return -ENOMEM;
input_dev = devm_input_allocate_device(dev);
if (!input_dev)
return -ENOMEM;
ts->irq = irq;
ts->dev = dev;
ts->idev = input_dev;
ts->regmap = regmap;
ts->tsc200x_cmd = tsc200x_cmd;
error = device_property_read_u32(dev, "ti,x-plate-ohms", &x_plate_ohm);
ts->x_plate_ohm = error ? TSC200X_DEF_RESISTOR : x_plate_ohm;
error = device_property_read_u32(dev, "ti,esd-recovery-timeout-ms",
&esd_timeout);
ts->esd_timeout = error ? 0 : esd_timeout;
ts->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(ts->reset_gpio)) {
error = PTR_ERR(ts->reset_gpio);
dev_err(dev, "error acquiring reset gpio: %d\n", error);
return error;
}
ts->vio = devm_regulator_get(dev, "vio");
if (IS_ERR(ts->vio)) {
error = PTR_ERR(ts->vio);
dev_err(dev, "error acquiring vio regulator: %d", error);
return error;
}
mutex_init(&ts->mutex);
spin_lock_init(&ts->lock);
setup_timer(&ts->penup_timer, tsc200x_penup_timer, (unsigned long)ts);
INIT_DELAYED_WORK(&ts->esd_work, tsc200x_esd_work);
snprintf(ts->phys, sizeof(ts->phys),
"%s/input-ts", dev_name(dev));
if (tsc_id->product == 2004) {
input_dev->name = "TSC200X touchscreen";
} else {
input_dev->name = devm_kasprintf(dev, GFP_KERNEL,
"TSC%04d touchscreen",
tsc_id->product);
if (!input_dev->name)
return -ENOMEM;
}
input_dev->phys = ts->phys;
input_dev->id = *tsc_id;
input_dev->open = tsc200x_open;
input_dev->close = tsc200x_close;
input_set_drvdata(input_dev, ts);
__set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
input_set_capability(input_dev, EV_KEY, BTN_TOUCH);
input_set_abs_params(input_dev, ABS_X,
0, MAX_12BIT, TSC200X_DEF_X_FUZZ, 0);
input_set_abs_params(input_dev, ABS_Y,
0, MAX_12BIT, TSC200X_DEF_Y_FUZZ, 0);
input_set_abs_params(input_dev, ABS_PRESSURE,
0, MAX_12BIT, TSC200X_DEF_P_FUZZ, 0);
touchscreen_parse_properties(input_dev, false, NULL);
/* Ensure the touchscreen is off */
tsc200x_stop_scan(ts);
error = devm_request_threaded_irq(dev, irq, NULL,
tsc200x_irq_thread,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
"tsc200x", ts);
if (error) {
dev_err(dev, "Failed to request irq, err: %d\n", error);
return error;
}
error = regulator_enable(ts->vio);
if (error)
return error;
dev_set_drvdata(dev, ts);
error = sysfs_create_group(&dev->kobj, &tsc200x_attr_group);
if (error) {
dev_err(dev,
"Failed to create sysfs attributes, err: %d\n", error);
goto disable_regulator;
}
error = input_register_device(ts->idev);
if (error) {
dev_err(dev,
"Failed to register input device, err: %d\n", error);
goto err_remove_sysfs;
}
irq_set_irq_wake(irq, 1);
return 0;
err_remove_sysfs:
sysfs_remove_group(&dev->kobj, &tsc200x_attr_group);
disable_regulator:
regulator_disable(ts->vio);
return error;
}
static int meson8b_init_rgmii_tx_clk(struct meson8b_dwmac *dwmac)
{
struct clk_init_data init;
int i, ret;
struct device *dev = &dwmac->pdev->dev;
char clk_name[32];
const char *clk_div_parents[1];
const char *mux_parent_names[MUX_CLK_NUM_PARENTS];
/* get the mux parents from DT */
for (i = 0; i < MUX_CLK_NUM_PARENTS; i++) {
char name[16];
snprintf(name, sizeof(name), "clkin%d", i);
dwmac->m250_mux_parent[i] = devm_clk_get(dev, name);
if (IS_ERR(dwmac->m250_mux_parent[i])) {
ret = PTR_ERR(dwmac->m250_mux_parent[i]);
if (ret != -EPROBE_DEFER)
dev_err(dev, "Missing clock %s\n", name);
return ret;
}
mux_parent_names[i] =
__clk_get_name(dwmac->m250_mux_parent[i]);
}
/* create the m250_mux */
snprintf(clk_name, sizeof(clk_name), "%s#m250_sel", dev_name(dev));
init.name = clk_name;
init.ops = &clk_mux_ops;
init.flags = CLK_SET_RATE_PARENT;
init.parent_names = mux_parent_names;
init.num_parents = MUX_CLK_NUM_PARENTS;
dwmac->m250_mux.reg = dwmac->regs + PRG_ETH0;
dwmac->m250_mux.shift = PRG_ETH0_CLK_M250_SEL_SHIFT;
dwmac->m250_mux.mask = PRG_ETH0_CLK_M250_SEL_MASK;
dwmac->m250_mux.flags = 0;
dwmac->m250_mux.table = NULL;
dwmac->m250_mux.hw.init = &init;
dwmac->m250_mux_clk = devm_clk_register(dev, &dwmac->m250_mux.hw);
if (WARN_ON(IS_ERR(dwmac->m250_mux_clk)))
return PTR_ERR(dwmac->m250_mux_clk);
/* create the m250_div */
snprintf(clk_name, sizeof(clk_name), "%s#m250_div", dev_name(dev));
init.name = devm_kstrdup(dev, clk_name, GFP_KERNEL);
init.ops = &clk_divider_ops;
init.flags = CLK_SET_RATE_PARENT;
clk_div_parents[0] = __clk_get_name(dwmac->m250_mux_clk);
init.parent_names = clk_div_parents;
init.num_parents = ARRAY_SIZE(clk_div_parents);
dwmac->m250_div.reg = dwmac->regs + PRG_ETH0;
dwmac->m250_div.shift = PRG_ETH0_CLK_M250_DIV_SHIFT;
dwmac->m250_div.width = PRG_ETH0_CLK_M250_DIV_WIDTH;
dwmac->m250_div.hw.init = &init;
dwmac->m250_div.flags = CLK_DIVIDER_ONE_BASED |
CLK_DIVIDER_ALLOW_ZERO |
CLK_DIVIDER_ROUND_CLOSEST;
dwmac->m250_div_clk = devm_clk_register(dev, &dwmac->m250_div.hw);
if (WARN_ON(IS_ERR(dwmac->m250_div_clk)))
return PTR_ERR(dwmac->m250_div_clk);
/* create the fixed_div2 */
snprintf(clk_name, sizeof(clk_name), "%s#fixed_div2", dev_name(dev));
init.name = devm_kstrdup(dev, clk_name, GFP_KERNEL);
init.ops = &clk_fixed_factor_ops;
init.flags = CLK_SET_RATE_PARENT;
clk_div_parents[0] = __clk_get_name(dwmac->m250_div_clk);
init.parent_names = clk_div_parents;
init.num_parents = ARRAY_SIZE(clk_div_parents);
dwmac->fixed_div2.mult = 1;
dwmac->fixed_div2.div = 2;
dwmac->fixed_div2.hw.init = &init;
dwmac->fixed_div2_clk = devm_clk_register(dev, &dwmac->fixed_div2.hw);
if (WARN_ON(IS_ERR(dwmac->fixed_div2_clk)))
return PTR_ERR(dwmac->fixed_div2_clk);
/* create the rgmii_tx_en */
init.name = devm_kasprintf(dev, GFP_KERNEL, "%s#rgmii_tx_en",
dev_name(dev));
init.ops = &clk_gate_ops;
init.flags = CLK_SET_RATE_PARENT;
clk_div_parents[0] = __clk_get_name(dwmac->fixed_div2_clk);
init.parent_names = clk_div_parents;
init.num_parents = ARRAY_SIZE(clk_div_parents);
dwmac->rgmii_tx_en.reg = dwmac->regs + PRG_ETH0;
dwmac->rgmii_tx_en.bit_idx = PRG_ETH0_RGMII_TX_CLK_EN;
dwmac->rgmii_tx_en.hw.init = &init;
dwmac->rgmii_tx_en_clk = devm_clk_register(dev,
&dwmac->rgmii_tx_en.hw);
if (WARN_ON(IS_ERR(dwmac->rgmii_tx_en_clk)))
return PTR_ERR(dwmac->rgmii_tx_en_clk);
return 0;
}
static int tb10x_gpio_probe(struct platform_device *pdev)
{
struct tb10x_gpio *tb10x_gpio;
struct resource *mem;
struct device_node *dn = pdev->dev.of_node;
int ret = -EBUSY;
u32 ngpio;
if (!dn)
return -EINVAL;
if (of_property_read_u32(dn, "abilis,ngpio", &ngpio))
return -EINVAL;
tb10x_gpio = devm_kzalloc(&pdev->dev, sizeof(*tb10x_gpio), GFP_KERNEL);
if (tb10x_gpio == NULL)
return -ENOMEM;
spin_lock_init(&tb10x_gpio->spinlock);
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
tb10x_gpio->base = devm_ioremap_resource(&pdev->dev, mem);
if (IS_ERR(tb10x_gpio->base))
return PTR_ERR(tb10x_gpio->base);
tb10x_gpio->gc.label =
devm_kasprintf(&pdev->dev, GFP_KERNEL, "%pOF", pdev->dev.of_node);
if (!tb10x_gpio->gc.label)
return -ENOMEM;
tb10x_gpio->gc.parent = &pdev->dev;
tb10x_gpio->gc.owner = THIS_MODULE;
tb10x_gpio->gc.direction_input = tb10x_gpio_direction_in;
tb10x_gpio->gc.get = tb10x_gpio_get;
tb10x_gpio->gc.direction_output = tb10x_gpio_direction_out;
tb10x_gpio->gc.set = tb10x_gpio_set;
tb10x_gpio->gc.request = gpiochip_generic_request;
tb10x_gpio->gc.free = gpiochip_generic_free;
tb10x_gpio->gc.base = -1;
tb10x_gpio->gc.ngpio = ngpio;
tb10x_gpio->gc.can_sleep = false;
ret = devm_gpiochip_add_data(&pdev->dev, &tb10x_gpio->gc, tb10x_gpio);
if (ret < 0) {
dev_err(&pdev->dev, "Could not add gpiochip.\n");
return ret;
}
platform_set_drvdata(pdev, tb10x_gpio);
if (of_find_property(dn, "interrupt-controller", NULL)) {
struct irq_chip_generic *gc;
ret = platform_get_irq(pdev, 0);
if (ret < 0) {
dev_err(&pdev->dev, "No interrupt specified.\n");
return ret;
}
tb10x_gpio->gc.to_irq = tb10x_gpio_to_irq;
tb10x_gpio->irq = ret;
ret = devm_request_irq(&pdev->dev, ret, tb10x_gpio_irq_cascade,
IRQF_TRIGGER_NONE | IRQF_SHARED,
dev_name(&pdev->dev), tb10x_gpio);
if (ret != 0)
return ret;
tb10x_gpio->domain = irq_domain_add_linear(dn,
tb10x_gpio->gc.ngpio,
&irq_generic_chip_ops, NULL);
if (!tb10x_gpio->domain) {
return -ENOMEM;
}
ret = irq_alloc_domain_generic_chips(tb10x_gpio->domain,
tb10x_gpio->gc.ngpio, 1, tb10x_gpio->gc.label,
handle_edge_irq, IRQ_NOREQUEST, IRQ_NOPROBE,
IRQ_GC_INIT_MASK_CACHE);
if (ret)
return ret;
gc = tb10x_gpio->domain->gc->gc[0];
gc->reg_base = tb10x_gpio->base;
gc->chip_types[0].type = IRQ_TYPE_EDGE_BOTH;
gc->chip_types[0].chip.irq_ack = irq_gc_ack_set_bit;
gc->chip_types[0].chip.irq_mask = irq_gc_mask_clr_bit;
gc->chip_types[0].chip.irq_unmask = irq_gc_mask_set_bit;
gc->chip_types[0].chip.irq_set_type = tb10x_gpio_irq_set_type;
gc->chip_types[0].regs.ack = OFFSET_TO_REG_CHANGE;
gc->chip_types[0].regs.mask = OFFSET_TO_REG_INT_EN;
}
return 0;
}
static int rcar_gen3_thermal_probe(struct platform_device *pdev)
{
struct rcar_gen3_thermal_priv *priv;
struct device *dev = &pdev->dev;
struct resource *res;
struct thermal_zone_device *zone;
int ret, irq, i;
char *irqname;
/* default values if FUSEs are missing */
/* TODO: Read values from hardware on supported platforms */
int ptat[3] = { 2631, 1509, 435 };
int thcode[TSC_MAX_NUM][3] = {
{ 3397, 2800, 2221 },
{ 3393, 2795, 2216 },
{ 3389, 2805, 2237 },
};
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->thermal_init = rcar_gen3_thermal_init;
if (soc_device_match(r8a7795es1))
priv->thermal_init = rcar_gen3_thermal_init_r8a7795es1;
spin_lock_init(&priv->lock);
platform_set_drvdata(pdev, priv);
/*
* Request 2 (of the 3 possible) IRQs, the driver only needs to
* to trigger on the low and high trip points of the current
* temp window at this point.
*/
for (i = 0; i < 2; i++) {
irq = platform_get_irq(pdev, i);
if (irq < 0)
return irq;
irqname = devm_kasprintf(dev, GFP_KERNEL, "%s:ch%d",
dev_name(dev), i);
if (!irqname)
return -ENOMEM;
ret = devm_request_threaded_irq(dev, irq, rcar_gen3_thermal_irq,
rcar_gen3_thermal_irq_thread,
IRQF_SHARED, irqname, priv);
if (ret)
return ret;
}
pm_runtime_enable(dev);
pm_runtime_get_sync(dev);
for (i = 0; i < TSC_MAX_NUM; i++) {
struct rcar_gen3_thermal_tsc *tsc;
res = platform_get_resource(pdev, IORESOURCE_MEM, i);
if (!res)
break;
tsc = devm_kzalloc(dev, sizeof(*tsc), GFP_KERNEL);
if (!tsc) {
ret = -ENOMEM;
goto error_unregister;
}
tsc->base = devm_ioremap_resource(dev, res);
if (IS_ERR(tsc->base)) {
ret = PTR_ERR(tsc->base);
goto error_unregister;
}
priv->tscs[i] = tsc;
priv->thermal_init(tsc);
rcar_gen3_thermal_calc_coefs(&tsc->coef, ptat, thcode[i]);
zone = devm_thermal_zone_of_sensor_register(dev, i, tsc,
&rcar_gen3_tz_of_ops);
if (IS_ERR(zone)) {
dev_err(dev, "Can't register thermal zone\n");
ret = PTR_ERR(zone);
goto error_unregister;
}
tsc->zone = zone;
ret = of_thermal_get_ntrips(tsc->zone);
if (ret < 0)
goto error_unregister;
dev_info(dev, "TSC%d: Loaded %d trip points\n", i, ret);
}
priv->num_tscs = i;
if (!priv->num_tscs) {
ret = -ENODEV;
goto error_unregister;
}
rcar_thermal_irq_set(priv, true);
return 0;
error_unregister:
rcar_gen3_thermal_remove(pdev);
return ret;
}
static int iio_hwmon_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct iio_hwmon_state *st;
struct sensor_device_attribute *a;
int ret, i;
int in_i = 1, temp_i = 1, curr_i = 1, humidity_i = 1;
enum iio_chan_type type;
struct iio_channel *channels;
const char *name = "iio_hwmon";
struct device *hwmon_dev;
char *sname;
if (dev->of_node && dev->of_node->name)
name = dev->of_node->name;
channels = devm_iio_channel_get_all(dev);
if (IS_ERR(channels)) {
if (PTR_ERR(channels) == -ENODEV)
return -EPROBE_DEFER;
return PTR_ERR(channels);
}
st = devm_kzalloc(dev, sizeof(*st), GFP_KERNEL);
if (st == NULL)
return -ENOMEM;
st->channels = channels;
/* count how many attributes we have */
while (st->channels[st->num_channels].indio_dev)
st->num_channels++;
st->attrs = devm_kcalloc(dev,
st->num_channels + 1, sizeof(*st->attrs),
GFP_KERNEL);
if (st->attrs == NULL)
return -ENOMEM;
for (i = 0; i < st->num_channels; i++) {
a = devm_kzalloc(dev, sizeof(*a), GFP_KERNEL);
if (a == NULL)
return -ENOMEM;
sysfs_attr_init(&a->dev_attr.attr);
ret = iio_get_channel_type(&st->channels[i], &type);
if (ret < 0)
return ret;
switch (type) {
case IIO_VOLTAGE:
a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
"in%d_input",
in_i++);
break;
case IIO_TEMP:
a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
"temp%d_input",
temp_i++);
break;
case IIO_CURRENT:
a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
"curr%d_input",
curr_i++);
break;
case IIO_HUMIDITYRELATIVE:
a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
"humidity%d_input",
humidity_i++);
break;
default:
return -EINVAL;
}
if (a->dev_attr.attr.name == NULL)
return -ENOMEM;
a->dev_attr.show = iio_hwmon_read_val;
a->dev_attr.attr.mode = S_IRUGO;
a->index = i;
st->attrs[i] = &a->dev_attr.attr;
}
st->attr_group.attrs = st->attrs;
st->groups[0] = &st->attr_group;
sname = devm_kstrdup(dev, name, GFP_KERNEL);
if (!sname)
return -ENOMEM;
strreplace(sname, '-', '_');
hwmon_dev = devm_hwmon_device_register_with_groups(dev, sname, st,
st->groups);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
static int omap_hdmi_audio_probe(struct platform_device *pdev)
{
struct omap_hdmi_audio_pdata *ha = pdev->dev.platform_data;
struct device *dev = &pdev->dev;
struct hdmi_audio_data *ad;
struct snd_soc_dai_driver *dai_drv;
struct snd_soc_card *card;
int ret;
if (!ha) {
dev_err(dev, "No platform data\n");
return -EINVAL;
}
ad = devm_kzalloc(dev, sizeof(*ad), GFP_KERNEL);
if (!ad)
return -ENOMEM;
ad->dssdev = ha->dev;
ad->ops = ha->ops;
ad->dma_data.addr = ha->audio_dma_addr;
ad->dma_data.filter_data = "audio_tx";
ad->dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
mutex_init(&ad->current_stream_lock);
switch (ha->dss_version) {
case OMAPDSS_VER_OMAP4430_ES1:
case OMAPDSS_VER_OMAP4430_ES2:
case OMAPDSS_VER_OMAP4:
dai_drv = &omap4_hdmi_dai;
break;
case OMAPDSS_VER_OMAP5:
dai_drv = &omap5_hdmi_dai;
break;
default:
return -EINVAL;
}
ret = snd_soc_register_component(ad->dssdev, &omap_hdmi_component,
dai_drv, 1);
if (ret)
return ret;
ret = omap_pcm_platform_register(ad->dssdev);
if (ret)
return ret;
card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
if (!card)
return -ENOMEM;
card->name = devm_kasprintf(dev, GFP_KERNEL,
"HDMI %s", dev_name(ad->dssdev));
card->owner = THIS_MODULE;
card->dai_link =
devm_kzalloc(dev, sizeof(*(card->dai_link)), GFP_KERNEL);
card->dai_link->name = card->name;
card->dai_link->stream_name = card->name;
card->dai_link->cpu_dai_name = dev_name(ad->dssdev);
card->dai_link->platform_name = dev_name(ad->dssdev);
card->dai_link->codec_name = "snd-soc-dummy";
card->dai_link->codec_dai_name = "snd-soc-dummy-dai";
card->num_links = 1;
card->dev = dev;
ret = snd_soc_register_card(card);
if (ret) {
dev_err(dev, "snd_soc_register_card failed (%d)\n", ret);
snd_soc_unregister_component(ad->dssdev);
return ret;
}
ad->card = card;
snd_soc_card_set_drvdata(card, ad);
dev_set_drvdata(dev, ad);
return 0;
}
static int fsl_asoc_card_probe(struct platform_device *pdev)
{
struct device_node *cpu_np, *codec_np, *asrc_np;
struct device_node *np = pdev->dev.of_node;
struct platform_device *asrc_pdev = NULL;
struct platform_device *cpu_pdev;
struct fsl_asoc_card_priv *priv;
struct i2c_client *codec_dev;
const char *codec_dai_name;
u32 width;
int ret;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
cpu_np = of_parse_phandle(np, "audio-cpu", 0);
/* Give a chance to old DT binding */
if (!cpu_np)
cpu_np = of_parse_phandle(np, "ssi-controller", 0);
if (!cpu_np) {
dev_err(&pdev->dev, "CPU phandle missing or invalid\n");
ret = -EINVAL;
goto fail;
}
cpu_pdev = of_find_device_by_node(cpu_np);
if (!cpu_pdev) {
dev_err(&pdev->dev, "failed to find CPU DAI device\n");
ret = -EINVAL;
goto fail;
}
codec_np = of_parse_phandle(np, "audio-codec", 0);
if (codec_np)
codec_dev = of_find_i2c_device_by_node(codec_np);
else
codec_dev = NULL;
asrc_np = of_parse_phandle(np, "audio-asrc", 0);
if (asrc_np)
asrc_pdev = of_find_device_by_node(asrc_np);
/* Get the MCLK rate only, and leave it controlled by CODEC drivers */
if (codec_dev) {
struct clk *codec_clk = clk_get(&codec_dev->dev, NULL);
if (!IS_ERR(codec_clk)) {
priv->codec_priv.mclk_freq = clk_get_rate(codec_clk);
clk_put(codec_clk);
}
}
/* Default sample rate and format, will be updated in hw_params() */
priv->sample_rate = 44100;
priv->sample_format = SNDRV_PCM_FORMAT_S16_LE;
/* Assign a default DAI format, and allow each card to overwrite it */
priv->dai_fmt = DAI_FMT_BASE;
/* Diversify the card configurations */
if (of_device_is_compatible(np, "fsl,imx-audio-cs42888")) {
codec_dai_name = "cs42888";
priv->card.set_bias_level = NULL;
priv->cpu_priv.sysclk_freq[TX] = priv->codec_priv.mclk_freq;
priv->cpu_priv.sysclk_freq[RX] = priv->codec_priv.mclk_freq;
priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_OUT;
priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_OUT;
priv->cpu_priv.slot_width = 32;
priv->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
} else if (of_device_is_compatible(np, "fsl,imx-audio-cs427x")) {
codec_dai_name = "cs4271-hifi";
priv->codec_priv.mclk_id = CS427x_SYSCLK_MCLK;
priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
} else if (of_device_is_compatible(np, "fsl,imx-audio-sgtl5000")) {
codec_dai_name = "sgtl5000";
priv->codec_priv.mclk_id = SGTL5000_SYSCLK;
priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
} else if (of_device_is_compatible(np, "fsl,imx-audio-wm8962")) {
codec_dai_name = "wm8962";
priv->card.set_bias_level = fsl_asoc_card_set_bias_level;
priv->codec_priv.mclk_id = WM8962_SYSCLK_MCLK;
priv->codec_priv.fll_id = WM8962_SYSCLK_FLL;
priv->codec_priv.pll_id = WM8962_FLL;
priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
} else if (of_device_is_compatible(np, "fsl,imx-audio-wm8960")) {
codec_dai_name = "wm8960-hifi";
priv->card.set_bias_level = fsl_asoc_card_set_bias_level;
priv->codec_priv.fll_id = WM8960_SYSCLK_AUTO;
priv->codec_priv.pll_id = WM8960_SYSCLK_AUTO;
priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
} else if (of_device_is_compatible(np, "fsl,imx-audio-ac97")) {
codec_dai_name = "ac97-hifi";
priv->card.set_bias_level = NULL;
priv->dai_fmt = SND_SOC_DAIFMT_AC97;
} else {
dev_err(&pdev->dev, "unknown Device Tree compatible\n");
ret = -EINVAL;
goto asrc_fail;
}
if (!fsl_asoc_card_is_ac97(priv) && !codec_dev) {
dev_err(&pdev->dev, "failed to find codec device\n");
ret = -EINVAL;
goto asrc_fail;
}
/* Common settings for corresponding Freescale CPU DAI driver */
if (strstr(cpu_np->name, "ssi")) {
/* Only SSI needs to configure AUDMUX */
ret = fsl_asoc_card_audmux_init(np, priv);
if (ret) {
dev_err(&pdev->dev, "failed to init audmux\n");
goto asrc_fail;
}
} else if (strstr(cpu_np->name, "esai")) {
priv->cpu_priv.sysclk_id[1] = ESAI_HCKT_EXTAL;
priv->cpu_priv.sysclk_id[0] = ESAI_HCKR_EXTAL;
} else if (strstr(cpu_np->name, "sai")) {
priv->cpu_priv.sysclk_id[1] = FSL_SAI_CLK_MAST1;
priv->cpu_priv.sysclk_id[0] = FSL_SAI_CLK_MAST1;
}
snprintf(priv->name, sizeof(priv->name), "%s-audio",
fsl_asoc_card_is_ac97(priv) ? "ac97" :
codec_dev->name);
/* Initialize sound card */
priv->pdev = pdev;
priv->card.dev = &pdev->dev;
priv->card.name = priv->name;
priv->card.dai_link = priv->dai_link;
priv->card.dapm_routes = fsl_asoc_card_is_ac97(priv) ?
audio_map_ac97 : audio_map;
priv->card.late_probe = fsl_asoc_card_late_probe;
priv->card.num_dapm_routes = ARRAY_SIZE(audio_map);
priv->card.dapm_widgets = fsl_asoc_card_dapm_widgets;
priv->card.num_dapm_widgets = ARRAY_SIZE(fsl_asoc_card_dapm_widgets);
/* Drop the second half of DAPM routes -- ASRC */
if (!asrc_pdev)
priv->card.num_dapm_routes /= 2;
memcpy(priv->dai_link, fsl_asoc_card_dai,
sizeof(struct snd_soc_dai_link) * ARRAY_SIZE(priv->dai_link));
ret = snd_soc_of_parse_audio_routing(&priv->card, "audio-routing");
if (ret) {
dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);
goto asrc_fail;
}
/* Normal DAI Link */
priv->dai_link[0].cpu_of_node = cpu_np;
priv->dai_link[0].codec_dai_name = codec_dai_name;
if (!fsl_asoc_card_is_ac97(priv))
priv->dai_link[0].codec_of_node = codec_np;
else {
u32 idx;
ret = of_property_read_u32(cpu_np, "cell-index", &idx);
if (ret) {
dev_err(&pdev->dev,
"cannot get CPU index property\n");
goto asrc_fail;
}
priv->dai_link[0].codec_name =
devm_kasprintf(&pdev->dev, GFP_KERNEL,
"ac97-codec.%u",
(unsigned int)idx);
}
priv->dai_link[0].platform_of_node = cpu_np;
priv->dai_link[0].dai_fmt = priv->dai_fmt;
priv->card.num_links = 1;
if (asrc_pdev) {
/* DPCM DAI Links only if ASRC exsits */
priv->dai_link[1].cpu_of_node = asrc_np;
priv->dai_link[1].platform_of_node = asrc_np;
priv->dai_link[2].codec_dai_name = codec_dai_name;
priv->dai_link[2].codec_of_node = codec_np;
priv->dai_link[2].codec_name =
priv->dai_link[0].codec_name;
priv->dai_link[2].cpu_of_node = cpu_np;
priv->dai_link[2].dai_fmt = priv->dai_fmt;
priv->card.num_links = 3;
ret = of_property_read_u32(asrc_np, "fsl,asrc-rate",
&priv->asrc_rate);
if (ret) {
dev_err(&pdev->dev, "failed to get output rate\n");
ret = -EINVAL;
goto asrc_fail;
}
ret = of_property_read_u32(asrc_np, "fsl,asrc-width", &width);
if (ret) {
dev_err(&pdev->dev, "failed to get output rate\n");
ret = -EINVAL;
goto asrc_fail;
}
if (width == 24)
priv->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
else
priv->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
}
/* Finish card registering */
platform_set_drvdata(pdev, priv);
snd_soc_card_set_drvdata(&priv->card, priv);
ret = devm_snd_soc_register_card(&pdev->dev, &priv->card);
if (ret)
dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
asrc_fail:
of_node_put(asrc_np);
of_node_put(codec_np);
fail:
of_node_put(cpu_np);
return ret;
}
static int etm_probe(struct amba_device *adev, const struct amba_id *id)
{
int ret;
void __iomem *base;
struct device *dev = &adev->dev;
struct coresight_platform_data *pdata = NULL;
struct etm_drvdata *drvdata;
struct resource *res = &adev->res;
struct coresight_desc desc = { 0 };
drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
if (!drvdata)
return -ENOMEM;
drvdata->use_cp14 = fwnode_property_read_bool(dev->fwnode, "arm,cp14");
dev_set_drvdata(dev, drvdata);
/* Validity for the resource is already checked by the AMBA core */
base = devm_ioremap_resource(dev, res);
if (IS_ERR(base))
return PTR_ERR(base);
drvdata->base = base;
spin_lock_init(&drvdata->spinlock);
drvdata->atclk = devm_clk_get(&adev->dev, "atclk"); /* optional */
if (!IS_ERR(drvdata->atclk)) {
ret = clk_prepare_enable(drvdata->atclk);
if (ret)
return ret;
}
drvdata->cpu = coresight_get_cpu(dev);
desc.name = devm_kasprintf(dev, GFP_KERNEL, "etm%d", drvdata->cpu);
if (!desc.name)
return -ENOMEM;
cpus_read_lock();
etmdrvdata[drvdata->cpu] = drvdata;
if (smp_call_function_single(drvdata->cpu,
etm_init_arch_data, drvdata, 1))
dev_err(dev, "ETM arch init failed\n");
if (!etm_count++) {
cpuhp_setup_state_nocalls_cpuslocked(CPUHP_AP_ARM_CORESIGHT_STARTING,
"arm/coresight:starting",
etm_starting_cpu, etm_dying_cpu);
ret = cpuhp_setup_state_nocalls_cpuslocked(CPUHP_AP_ONLINE_DYN,
"arm/coresight:online",
etm_online_cpu, NULL);
if (ret < 0)
goto err_arch_supported;
hp_online = ret;
}
cpus_read_unlock();
if (etm_arch_supported(drvdata->arch) == false) {
ret = -EINVAL;
goto err_arch_supported;
}
etm_init_trace_id(drvdata);
etm_set_default(&drvdata->config);
pdata = coresight_get_platform_data(dev);
if (IS_ERR(pdata)) {
ret = PTR_ERR(pdata);
goto err_arch_supported;
}
adev->dev.platform_data = pdata;
desc.type = CORESIGHT_DEV_TYPE_SOURCE;
desc.subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_PROC;
desc.ops = &etm_cs_ops;
desc.pdata = pdata;
desc.dev = dev;
desc.groups = coresight_etm_groups;
drvdata->csdev = coresight_register(&desc);
if (IS_ERR(drvdata->csdev)) {
ret = PTR_ERR(drvdata->csdev);
goto err_arch_supported;
}
ret = etm_perf_symlink(drvdata->csdev, true);
if (ret) {
coresight_unregister(drvdata->csdev);
goto err_arch_supported;
}
pm_runtime_put(&adev->dev);
dev_info(&drvdata->csdev->dev,
"%s initialized\n", (char *)coresight_get_uci_data(id));
if (boot_enable) {
coresight_enable(drvdata->csdev);
drvdata->boot_enable = true;
}
return 0;
err_arch_supported:
if (--etm_count == 0) {
cpuhp_remove_state_nocalls(CPUHP_AP_ARM_CORESIGHT_STARTING);
if (hp_online)
cpuhp_remove_state_nocalls(hp_online);
}
return ret;
}