static int cpcap_rtc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct cpcap_rtc *rtc;
int err;
rtc = devm_kzalloc(dev, sizeof(*rtc), GFP_KERNEL);
if (!rtc)
return -ENOMEM;
rtc->regmap = dev_get_regmap(dev->parent, NULL);
if (!rtc->regmap)
return -ENODEV;
platform_set_drvdata(pdev, rtc);
rtc->rtc_dev = devm_rtc_device_register(dev, "cpcap_rtc",
&cpcap_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc->rtc_dev))
return PTR_ERR(rtc->rtc_dev);
err = cpcap_get_vendor(dev, rtc->regmap, &rtc->vendor);
if (err)
return err;
rtc->alarm_irq = platform_get_irq(pdev, 0);
err = devm_request_threaded_irq(dev, rtc->alarm_irq, NULL,
cpcap_rtc_alarm_irq, IRQF_TRIGGER_NONE,
"rtc_alarm", rtc);
if (err) {
dev_err(dev, "Could not request alarm irq: %d\n", err);
return err;
}
disable_irq(rtc->alarm_irq);
/* Stock Android uses the 1 Hz interrupt for "secure clock daemon",
* which is not supported by the mainline kernel. The mainline kernel
* does not use the irq at the moment, but we explicitly request and
* disable it, so that its masked and does not wake up the processor
* every second.
*/
rtc->update_irq = platform_get_irq(pdev, 1);
err = devm_request_threaded_irq(dev, rtc->update_irq, NULL,
cpcap_rtc_update_irq, IRQF_TRIGGER_NONE,
"rtc_1hz", rtc);
if (err) {
dev_err(dev, "Could not request update irq: %d\n", err);
return err;
}
disable_irq(rtc->update_irq);
err = device_init_wakeup(dev, 1);
if (err) {
dev_err(dev, "wakeup initialization failed (%d)\n", err);
/* ignore error and continue without wakeup support */
}
return 0;
}
static int __devinit pm805_codec_probe(struct platform_device *pdev)
{
struct pm80x_chip *chip = dev_get_drvdata(pdev->dev.parent);
struct pm805_priv *pm805;
int ret, irq_short1, irq_short2;
pm805 = devm_kzalloc(&pdev->dev, sizeof(struct pm805_priv), GFP_KERNEL);
if (pm805 == NULL)
return -ENOMEM;
pm805->chip = chip;
pm805->regmap = chip->regmap;
/* refer to drivers/mfd/88pm805.c for irq resource */
irq_short1 = platform_get_irq(pdev, 1);
if (irq_short1 < 0)
dev_err(&pdev->dev, "No IRQ resource for audio short 1!\n");
irq_short2 = platform_get_irq(pdev, 2);
if (irq_short2 < 0)
dev_err(&pdev->dev, "No IRQ resource for audio short 2!\n");
pm805->irq_audio_short1 = irq_short1 + chip->irq_base;
pm805->irq_audio_short2 = irq_short2 + chip->irq_base;
INIT_WORK(&pm805->work_short, pm805_short_work);
ret =
devm_request_threaded_irq(&pdev->dev, pm805->irq_audio_short1, NULL,
pm805_short_handler, IRQF_ONESHOT,
"audio_short1", pm805);
if (ret < 0)
dev_err(&pdev->dev, "Failed to request IRQ: #%d: %d\n",
pm805->irq_audio_short1, ret);
ret =
devm_request_threaded_irq(&pdev->dev, pm805->irq_audio_short2, NULL,
pm805_short_handler, IRQF_ONESHOT,
"audio_short2", pm805);
if (ret < 0)
dev_err(&pdev->dev, "Failed to request IRQ: #%d: %d\n",
pm805->irq_audio_short2, ret);
platform_set_drvdata(pdev, pm805);
return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_pm805,
pm805_dai, ARRAY_SIZE(pm805_dai));
}
static int max3355_probe(struct platform_device *pdev)
{
struct max3355_data *data;
struct gpio_desc *gpiod;
int irq, err;
data = devm_kzalloc(&pdev->dev, sizeof(struct max3355_data),
GFP_KERNEL);
if (!data)
return -ENOMEM;
gpiod = devm_gpiod_get(&pdev->dev, "id", GPIOD_IN);
if (IS_ERR(gpiod)) {
dev_err(&pdev->dev, "failed to get ID_OUT GPIO\n");
return PTR_ERR(gpiod);
}
data->id_gpiod = gpiod;
gpiod = devm_gpiod_get(&pdev->dev, "maxim,shdn", GPIOD_OUT_HIGH);
if (IS_ERR(gpiod)) {
dev_err(&pdev->dev, "failed to get SHDN# GPIO\n");
return PTR_ERR(gpiod);
}
data->shdn_gpiod = gpiod;
data->edev = devm_extcon_dev_allocate(&pdev->dev, max3355_cable);
if (IS_ERR(data->edev)) {
dev_err(&pdev->dev, "failed to allocate extcon device\n");
return PTR_ERR(data->edev);
}
err = devm_extcon_dev_register(&pdev->dev, data->edev);
if (err < 0) {
dev_err(&pdev->dev, "failed to register extcon device\n");
return err;
}
irq = gpiod_to_irq(data->id_gpiod);
if (irq < 0) {
dev_err(&pdev->dev, "failed to translate ID_OUT GPIO to IRQ\n");
return irq;
}
err = devm_request_threaded_irq(&pdev->dev, irq, NULL, max3355_id_irq,
IRQF_ONESHOT | IRQF_NO_SUSPEND |
IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING,
pdev->name, data);
if (err < 0) {
dev_err(&pdev->dev, "failed to request ID_OUT IRQ\n");
return err;
}
platform_set_drvdata(pdev, data);
/* Perform initial detection */
max3355_id_irq(irq, data);
return 0;
}
/**
* phy_mdm6600_init_irq() - initialize mdm6600 status IRQ lines
* @ddata: device driver data
*/
static void phy_mdm6600_init_irq(struct phy_mdm6600 *ddata)
{
struct device *dev = ddata->dev;
int i, error, irq;
for (i = PHY_MDM6600_STATUS0;
i <= PHY_MDM6600_STATUS2; i++) {
struct gpio_desc *gpio = ddata->status_gpios->desc[i];
irq = gpiod_to_irq(gpio);
if (irq <= 0)
continue;
error = devm_request_threaded_irq(dev, irq, NULL,
phy_mdm6600_irq_thread,
IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING |
IRQF_ONESHOT,
"mdm6600",
ddata);
if (error)
dev_warn(dev, "no modem status irq%i: %i\n",
irq, error);
}
}
void mmc_gpiod_request_cd_irq(struct mmc_host *host)
{
struct mmc_gpio *ctx = host->slot.handler_priv;
int ret, irq;
if (host->slot.cd_irq >= 0 || !ctx || !ctx->cd_gpio)
return;
irq = gpiod_to_irq(ctx->cd_gpio);
/*
* Even if gpiod_to_irq() returns a valid IRQ number, the platform might
* still prefer to poll, e.g., because that IRQ number is already used
* by another unit and cannot be shared.
*/
if (irq >= 0 && host->caps & MMC_CAP_NEEDS_POLL)
irq = -EINVAL;
if (irq >= 0) {
ret = devm_request_threaded_irq(&host->class_dev, irq,
NULL, mmc_gpio_cd_irqt,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
ctx->cd_label, host);
if (ret < 0)
irq = ret;
}
host->slot.cd_irq = irq;
if (irq < 0)
host->caps |= MMC_CAP_NEEDS_POLL;
}
static int st21nfcb_nci_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct st21nfcb_i2c_phy *phy;
struct st21nfcb_nfc_platform_data *pdata;
int r;
dev_dbg(&client->dev, "%s\n", __func__);
dev_dbg(&client->dev, "IRQ: %d\n", client->irq);
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
nfc_err(&client->dev, "Need I2C_FUNC_I2C\n");
return -ENODEV;
}
phy = devm_kzalloc(&client->dev, sizeof(struct st21nfcb_i2c_phy),
GFP_KERNEL);
if (!phy) {
nfc_err(&client->dev,
"Cannot allocate memory for st21nfcb i2c phy.\n");
return -ENOMEM;
}
phy->i2c_dev = client;
i2c_set_clientdata(client, phy);
pdata = client->dev.platform_data;
if (!pdata && client->dev.of_node) {
r = st21nfcb_nci_i2c_of_request_resources(client);
if (r) {
nfc_err(&client->dev, "No platform data\n");
return r;
}
} else if (pdata) {
r = st21nfcb_nci_i2c_request_resources(client);
if (r) {
nfc_err(&client->dev,
"Cannot get platform resources\n");
return r;
}
} else {
nfc_err(&client->dev,
"st21nfcb platform resources not available\n");
return -ENODEV;
}
r = devm_request_threaded_irq(&client->dev, client->irq, NULL,
st21nfcb_nci_irq_thread_fn,
phy->irq_polarity | IRQF_ONESHOT,
ST21NFCB_NCI_DRIVER_NAME, phy);
if (r < 0) {
nfc_err(&client->dev, "Unable to register IRQ handler\n");
return r;
}
return ndlc_probe(phy, &i2c_phy_ops, &client->dev,
ST21NFCB_FRAME_HEADROOM, ST21NFCB_FRAME_TAILROOM,
&phy->ndlc);
}
static int retu_pwrbutton_probe(struct platform_device *pdev)
{
struct retu_dev *rdev = dev_get_drvdata(pdev->dev.parent);
struct input_dev *idev;
int irq;
int error;
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;
idev = devm_input_allocate_device(&pdev->dev);
if (!idev)
return -ENOMEM;
idev->name = "retu-pwrbutton";
idev->dev.parent = &pdev->dev;
input_set_capability(idev, EV_KEY, KEY_POWER);
input_set_drvdata(idev, rdev);
error = devm_request_threaded_irq(&pdev->dev, irq,
NULL, retu_pwrbutton_irq, 0,
"retu-pwrbutton", idev);
if (error)
return error;
error = input_register_device(idev);
if (error)
return error;
return 0;
}
static int da9052_rtc_probe(struct platform_device *pdev)
{
struct da9052_rtc *rtc;
int ret;
rtc = devm_kzalloc(&pdev->dev, sizeof(struct da9052_rtc), GFP_KERNEL);
if (!rtc)
return -ENOMEM;
rtc->da9052 = dev_get_drvdata(pdev->dev.parent);
platform_set_drvdata(pdev, rtc);
rtc->irq = platform_get_irq_byname(pdev, "ALM");
ret = devm_request_threaded_irq(&pdev->dev, rtc->irq, NULL,
da9052_rtc_irq,
IRQF_TRIGGER_LOW | IRQF_ONESHOT,
"ALM", rtc);
if (ret != 0) {
rtc_err(rtc->da9052, "irq registration failed: %d\n", ret);
return ret;
}
rtc->rtc = rtc_device_register(pdev->name, &pdev->dev,
&da9052_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc->rtc))
return PTR_ERR(rtc->rtc);
return 0;
}
static int ds3232_probe(struct device *dev, struct regmap *regmap, int irq,
const char *name)
{
struct ds3232 *ds3232;
int ret;
ds3232 = devm_kzalloc(dev, sizeof(*ds3232), GFP_KERNEL);
if (!ds3232)
return -ENOMEM;
ds3232->regmap = regmap;
ds3232->irq = irq;
ds3232->dev = dev;
dev_set_drvdata(dev, ds3232);
ret = ds3232_check_rtc_status(dev);
if (ret)
return ret;
if (ds3232->irq > 0) {
ret = devm_request_threaded_irq(dev, ds3232->irq, NULL,
ds3232_irq,
IRQF_SHARED | IRQF_ONESHOT,
name, dev);
if (ret) {
ds3232->irq = 0;
dev_err(dev, "unable to request IRQ\n");
} else
device_init_wakeup(dev, 1);
}
ds3232->rtc = devm_rtc_device_register(dev, name, &ds3232_rtc_ops,
THIS_MODULE);
return PTR_ERR_OR_ZERO(ds3232->rtc);
}
static int chtdc_ti_pwrbtn_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct intel_soc_pmic *pmic = dev_get_drvdata(dev->parent);
struct input_dev *input;
int irq, err;
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;
input = devm_input_allocate_device(dev);
if (!input)
return -ENOMEM;
input->name = pdev->name;
input->phys = "power-button/input0";
input->id.bustype = BUS_HOST;
input_set_capability(input, EV_KEY, KEY_POWER);
err = input_register_device(input);
if (err)
return err;
dev_set_drvdata(dev, pmic->regmap);
err = devm_request_threaded_irq(dev, irq, NULL,
chtdc_ti_pwrbtn_interrupt,
0, KBUILD_MODNAME, input);
if (err)
return err;
device_init_wakeup(dev, true);
dev_pm_set_wake_irq(dev, irq);
return 0;
}
void mmc_gpiod_request_cd_irq(struct mmc_host *host)
{
struct mmc_gpio *ctx = host->slot.handler_priv;
int irq = -EINVAL;
int ret;
if (host->slot.cd_irq >= 0 || !ctx || !ctx->cd_gpio)
return;
/*
* Do not use IRQ if the platform prefers to poll, e.g., because that
* IRQ number is already used by another unit and cannot be shared.
*/
if (!(host->caps & MMC_CAP_NEEDS_POLL))
irq = gpiod_to_irq(ctx->cd_gpio);
if (irq >= 0) {
if (!ctx->cd_gpio_isr)
ctx->cd_gpio_isr = mmc_gpio_cd_irqt;
ret = devm_request_threaded_irq(host->parent, irq,
NULL, ctx->cd_gpio_isr,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
ctx->cd_label, host);
if (ret < 0)
irq = ret;
}
host->slot.cd_irq = irq;
if (irq < 0)
host->caps |= MMC_CAP_NEEDS_POLL;
}
static int register_dprc_irq_handler(struct fsl_mc_device *mc_dev)
{
int error;
struct fsl_mc_device_irq *irq = mc_dev->irqs[0];
WARN_ON(mc_dev->obj_desc.irq_count != 1);
/*
* NOTE: devm_request_threaded_irq() invokes the device-specific
* function that programs the MSI physically in the device
*/
error = devm_request_threaded_irq(&mc_dev->dev,
irq->msi_desc->irq,
dprc_irq0_handler,
dprc_irq0_handler_thread,
IRQF_NO_SUSPEND | IRQF_ONESHOT,
"FSL MC DPRC irq0",
&mc_dev->dev);
if (error < 0) {
dev_err(&mc_dev->dev,
"devm_request_threaded_irq() failed: %d\n",
error);
return error;
}
return 0;
}
int wcd9xxx_spmi_request_irq(int irq, irq_handler_t handler,
const char *name, void *priv)
{
int rc;
map.linuxirq[irq] =
spmi_get_irq_byname(map.spmi[BIT_BYTE(irq)], NULL,
irq_names[irq]);
rc = devm_request_threaded_irq(&map.spmi[BIT_BYTE(irq)]->dev,
map.linuxirq[irq], NULL,
wcd9xxx_spmi_irq_handler,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING
| IRQF_ONESHOT,
name, priv);
if (rc < 0) {
dev_err(&map.spmi[BIT_BYTE(irq)]->dev,
"Can't request %d IRQ\n", irq);
return rc;
}
dev_dbg(&map.spmi[BIT_BYTE(irq)]->dev,
"irq %d linuxIRQ: %d\n", irq, map.linuxirq[irq]);
map.mask[BIT_BYTE(irq)] &= ~BYTE_BIT_MASK(irq);
map.handler[irq] = handler;
enable_irq_wake(map.linuxirq[irq]);
return 0;
}
static int silead_ts_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct silead_ts_data *data;
struct device *dev = &client->dev;
int error;
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_I2C |
I2C_FUNC_SMBUS_READ_I2C_BLOCK |
I2C_FUNC_SMBUS_WRITE_I2C_BLOCK)) {
dev_err(dev, "I2C functionality check failed\n");
return -ENXIO;
}
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
i2c_set_clientdata(client, data);
data->client = client;
error = silead_ts_set_default_fw_name(data, id);
if (error)
return error;
silead_ts_read_props(client);
/* We must have the IRQ provided by DT or ACPI subsytem */
if (client->irq <= 0)
return -ENODEV;
/* Power GPIO pin */
data->gpio_power = devm_gpiod_get_optional(dev, "power", GPIOD_OUT_LOW);
if (IS_ERR(data->gpio_power)) {
if (PTR_ERR(data->gpio_power) != -EPROBE_DEFER)
dev_err(dev, "Shutdown GPIO request failed\n");
return PTR_ERR(data->gpio_power);
}
error = silead_ts_setup(client);
if (error)
return error;
error = silead_ts_request_input_dev(data);
if (error)
return error;
error = devm_request_threaded_irq(dev, client->irq,
NULL, silead_ts_threaded_irq_handler,
IRQF_ONESHOT, client->name, data);
if (error) {
if (error != -EPROBE_DEFER)
dev_err(dev, "IRQ request failed %d\n", error);
return error;
}
return 0;
}
int mc13xxx_irq_request(struct mc13xxx *mc13xxx, int irq,
irq_handler_t handler, const char *name, void *dev)
{
int virq = regmap_irq_get_virq(mc13xxx->irq_data, irq);
return devm_request_threaded_irq(mc13xxx->dev, virq, NULL, handler,
IRQF_ONESHOT, name, dev);
}
static int st_nci_spi_probe(struct spi_device *dev)
{
struct st_nci_spi_phy *phy;
int r;
dev_dbg(&dev->dev, "%s\n", __func__);
dev_dbg(&dev->dev, "IRQ: %d\n", dev->irq);
/* Check SPI platform functionnalities */
if (!dev) {
pr_debug("%s: dev is NULL. Device is not accessible.\n",
__func__);
return -ENODEV;
}
phy = devm_kzalloc(&dev->dev, sizeof(struct st_nci_spi_phy),
GFP_KERNEL);
if (!phy)
return -ENOMEM;
phy->spi_dev = dev;
spi_set_drvdata(dev, phy);
r = devm_acpi_dev_add_driver_gpios(&dev->dev, acpi_st_nci_gpios);
if (r)
dev_dbg(&dev->dev, "Unable to add GPIO mapping table\n");
/* Get RESET GPIO */
phy->gpiod_reset = devm_gpiod_get(&dev->dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(phy->gpiod_reset)) {
nfc_err(&dev->dev, "Unable to get RESET GPIO\n");
return PTR_ERR(phy->gpiod_reset);
}
phy->se_status.is_ese_present =
device_property_read_bool(&dev->dev, "ese-present");
phy->se_status.is_uicc_present =
device_property_read_bool(&dev->dev, "uicc-present");
r = ndlc_probe(phy, &spi_phy_ops, &dev->dev,
ST_NCI_FRAME_HEADROOM, ST_NCI_FRAME_TAILROOM,
&phy->ndlc, &phy->se_status);
if (r < 0) {
nfc_err(&dev->dev, "Unable to register ndlc layer\n");
return r;
}
phy->irq_active = true;
r = devm_request_threaded_irq(&dev->dev, dev->irq, NULL,
st_nci_irq_thread_fn,
IRQF_ONESHOT,
ST_NCI_SPI_DRIVER_NAME, phy);
if (r < 0)
nfc_err(&dev->dev, "Unable to register IRQ handler\n");
return r;
}
/* configuration api for buffer mode */
static int qpnp_hap_buffer_config(struct qpnp_hap *hap)
{
u8 reg = 0;
int rc, i, temp;
/* Configure the WAVE_REPEAT register */
if (hap->wave_rep_cnt < QPNP_HAP_WAV_REP_MIN)
hap->wave_rep_cnt = QPNP_HAP_WAV_REP_MIN;
else if (hap->wave_rep_cnt > QPNP_HAP_WAV_REP_MAX)
hap->wave_rep_cnt = QPNP_HAP_WAV_REP_MAX;
if (hap->wave_s_rep_cnt < QPNP_HAP_WAV_S_REP_MIN)
hap->wave_s_rep_cnt = QPNP_HAP_WAV_S_REP_MIN;
else if (hap->wave_s_rep_cnt > QPNP_HAP_WAV_S_REP_MAX)
hap->wave_s_rep_cnt = QPNP_HAP_WAV_S_REP_MAX;
rc = qpnp_hap_read_reg(hap, ®,
QPNP_HAP_WAV_REP_REG(hap->base));
if (rc < 0)
return rc;
reg &= QPNP_HAP_WAV_REP_MASK;
temp = fls(hap->wave_rep_cnt) - 1;
reg |= (temp << QPNP_HAP_WAV_REP_SHFT);
reg &= QPNP_HAP_WAV_S_REP_MASK;
temp = fls(hap->wave_s_rep_cnt) - 1;
reg |= temp;
rc = qpnp_hap_write_reg(hap, ®,
QPNP_HAP_WAV_REP_REG(hap->base));
if (rc)
return rc;
/* Configure WAVE_SAMPLE1 to WAVE_SAMPLE8 register */
for (i = 0, reg = 0; i < QPNP_HAP_WAV_SAMP_LEN; i++) {
reg = hap->wave_samp[i];
rc = qpnp_hap_write_reg(hap, ®,
QPNP_HAP_WAV_S_REG_BASE(hap->base) + i);
if (rc)
return rc;
}
/* setup play irq */
if (hap->use_play_irq) {
rc = devm_request_threaded_irq(&hap->spmi->dev, hap->play_irq,
NULL, qpnp_hap_play_irq,
QPNP_IRQ_FLAGS,
"qpnp_play_irq", hap);
if (rc < 0) {
dev_err(&hap->spmi->dev,
"Unable to request play(%d) IRQ(err:%d)\n",
hap->play_irq, rc);
return rc;
}
}
hap->buffer_cfg_state = true;
return 0;
}
static int max8997_rtc_probe(struct platform_device *pdev)
{
struct max8997_dev *max8997 = dev_get_drvdata(pdev->dev.parent);
struct max8997_rtc_info *info;
int ret, virq;
info = devm_kzalloc(&pdev->dev, sizeof(struct max8997_rtc_info),
GFP_KERNEL);
if (!info)
return -ENOMEM;
mutex_init(&info->lock);
info->dev = &pdev->dev;
info->max8997 = max8997;
info->rtc = max8997->rtc;
platform_set_drvdata(pdev, info);
ret = max8997_rtc_init_reg(info);
if (ret < 0) {
dev_err(&pdev->dev, "Failed to initialize RTC reg:%d\n", ret);
return ret;
}
max8997_rtc_enable_wtsr(info, true);
max8997_rtc_enable_smpl(info, true);
device_init_wakeup(&pdev->dev, 1);
info->rtc_dev = devm_rtc_device_register(&pdev->dev, "max8997-rtc",
&max8997_rtc_ops, THIS_MODULE);
if (IS_ERR(info->rtc_dev)) {
ret = PTR_ERR(info->rtc_dev);
dev_err(&pdev->dev, "Failed to register RTC device: %d\n", ret);
return ret;
}
virq = irq_create_mapping(max8997->irq_domain, MAX8997_PMICIRQ_RTCA1);
if (!virq) {
dev_err(&pdev->dev, "Failed to create mapping alarm IRQ\n");
ret = -ENXIO;
goto err_out;
}
info->virq = virq;
ret = devm_request_threaded_irq(&pdev->dev, virq, NULL,
max8997_rtc_alarm_irq, 0,
"rtc-alarm0", info);
if (ret < 0)
dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
info->virq, ret);
err_out:
return ret;
}
/**
* mmc_gpio_request_cd - request a gpio for card-detection
* @host: mmc host
* @gpio: gpio number requested
*
* As devm_* managed functions are used in mmc_gpio_request_cd(), client
* drivers do not need to explicitly call mmc_gpio_free_cd() for freeing up,
* if the requesting and freeing are only needed at probing and unbinding time
* for once. However, if client drivers do something special like runtime
* switching for card-detection, they are responsible for calling
* mmc_gpio_request_cd() and mmc_gpio_free_cd() as a pair on their own.
*
* Returns zero on success, else an error.
*/
int mmc_gpio_request_cd(struct mmc_host *host, unsigned int gpio)
{
struct mmc_gpio *ctx;
int irq = gpio_to_irq(gpio);
int ret;
ret = mmc_gpio_alloc(host);
if (ret < 0)
return ret;
ctx = host->slot.handler_priv;
ret = devm_gpio_request_one(&host->class_dev, gpio, GPIOF_DIR_IN,
ctx->cd_label);
if (ret < 0)
/*
* don't bother freeing memory. It might still get used by other
* slot functions, in any case it will be freed, when the device
* is destroyed.
*/
return ret;
/*
* Even if gpio_to_irq() returns a valid IRQ number, the platform might
* still prefer to poll, e.g., because that IRQ number is already used
* by another unit and cannot be shared.
*/
if (irq >= 0 && host->caps & MMC_CAP_NEEDS_POLL)
irq = -EINVAL;
ctx->cd_gpio = gpio;
host->slot.cd_irq = irq;
ret = mmc_gpio_get_status(host);
if (ret < 0)
return ret;
ctx->status = ret;
if (irq >= 0) {
ret = devm_request_threaded_irq(&host->class_dev, irq,
NULL, mmc_gpio_cd_irqt,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
ctx->cd_label, host);
if (ret < 0)
irq = ret;
#ifndef VENDOR_EDIT
//[email protected], 2014-07-10 Add for retry 5 times when new sdcard init error
enable_irq_wake(irq);
#endif /* VENDOR_EDIT */
}
if (irq < 0)
host->caps |= MMC_CAP_NEEDS_POLL;
return 0;
}
static int rc5t583_rtc_probe(struct platform_device *pdev)
{
struct rc5t583 *rc5t583 = dev_get_drvdata(pdev->dev.parent);
struct rc5t583_rtc *ricoh_rtc;
struct rc5t583_platform_data *pmic_plat_data;
int ret;
int irq;
ricoh_rtc = devm_kzalloc(&pdev->dev, sizeof(struct rc5t583_rtc),
GFP_KERNEL);
if (!ricoh_rtc)
return -ENOMEM;
platform_set_drvdata(pdev, ricoh_rtc);
/* Clear pending interrupts */
ret = regmap_write(rc5t583->regmap, RC5T583_RTC_CTL2, 0);
if (ret < 0)
return ret;
/* clear RTC Adjust register */
ret = regmap_write(rc5t583->regmap, RC5T583_RTC_ADJ, 0);
if (ret < 0) {
dev_err(&pdev->dev, "unable to program rtc_adjust reg\n");
return -EBUSY;
}
pmic_plat_data = dev_get_platdata(rc5t583->dev);
irq = pmic_plat_data->irq_base;
if (irq <= 0) {
dev_warn(&pdev->dev, "Wake up is not possible as irq = %d\n",
irq);
return ret;
}
irq += RC5T583_IRQ_YALE;
ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
rc5t583_rtc_interrupt, IRQF_TRIGGER_LOW,
"rtc-rc5t583", &pdev->dev);
if (ret < 0) {
dev_err(&pdev->dev, "IRQ is not free.\n");
return ret;
}
device_init_wakeup(&pdev->dev, 1);
ricoh_rtc->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
&rc5t583_rtc_ops, THIS_MODULE);
if (IS_ERR(ricoh_rtc->rtc)) {
ret = PTR_ERR(ricoh_rtc->rtc);
dev_err(&pdev->dev, "RTC device register: err %d\n", ret);
return ret;
}
return 0;
}
static int hym8563_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct hym8563 *hym8563;
int ret;
hym8563 = devm_kzalloc(&client->dev, sizeof(*hym8563), GFP_KERNEL);
if (!hym8563)
return -ENOMEM;
hym8563->client = client;
i2c_set_clientdata(client, hym8563);
device_set_wakeup_capable(&client->dev, true);
ret = hym8563_init_device(client);
if (ret) {
dev_err(&client->dev, "could not init device, %d\n", ret);
return ret;
}
ret = devm_request_threaded_irq(&client->dev, client->irq,
NULL, hym8563_irq,
IRQF_TRIGGER_LOW | IRQF_ONESHOT,
client->name, hym8563);
if (ret < 0) {
dev_err(&client->dev, "irq %d request failed, %d\n",
client->irq, ret);
return ret;
}
/* check state of calendar information */
ret = i2c_smbus_read_byte_data(client, HYM8563_SEC);
if (ret < 0)
return ret;
hym8563->valid = !(ret & HYM8563_SEC_VL);
dev_dbg(&client->dev, "rtc information is %s\n",
hym8563->valid ? "valid" : "invalid");
hym8563->rtc = devm_rtc_device_register(&client->dev, client->name,
&hym8563_rtc_ops, THIS_MODULE);
if (IS_ERR(hym8563->rtc))
return PTR_ERR(hym8563->rtc);
/* the hym8563 alarm only supports a minute accuracy */
hym8563->rtc->uie_unsupported = 1;
#ifdef CONFIG_COMMON_CLK
hym8563_clkout_register_clk(hym8563);
#endif
return 0;
}
static int rx8010_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
struct rx8010_data *rx8010;
int err = 0;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA
| I2C_FUNC_SMBUS_I2C_BLOCK)) {
dev_err(&adapter->dev, "doesn't support required functionality\n");
return -EIO;
}
rx8010 = devm_kzalloc(&client->dev, sizeof(struct rx8010_data),
GFP_KERNEL);
if (!rx8010)
return -ENOMEM;
rx8010->client = client;
i2c_set_clientdata(client, rx8010);
err = rx8010_init_client(client);
if (err)
return err;
if (client->irq > 0) {
dev_info(&client->dev, "IRQ %d supplied\n", client->irq);
err = devm_request_threaded_irq(&client->dev, client->irq, NULL,
rx8010_irq_1_handler,
IRQF_TRIGGER_LOW | IRQF_ONESHOT,
"rx8010", client);
if (err) {
dev_err(&client->dev, "unable to request IRQ\n");
client->irq = 0;
} else {
rx8010_rtc_ops.read_alarm = rx8010_read_alarm;
rx8010_rtc_ops.set_alarm = rx8010_set_alarm;
rx8010_rtc_ops.alarm_irq_enable = rx8010_alarm_irq_enable;
}
}
rx8010->rtc = devm_rtc_device_register(&client->dev, client->name,
&rx8010_rtc_ops, THIS_MODULE);
if (IS_ERR(rx8010->rtc)) {
dev_err(&client->dev, "unable to register the class device\n");
return PTR_ERR(rx8010->rtc);
}
rx8010->rtc->max_user_freq = 1;
return err;
}
static int nfcmrvl_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct nfcmrvl_i2c_drv_data *drv_data;
struct nfcmrvl_platform_data *pdata;
struct nfcmrvl_platform_data config;
int ret;
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
nfc_err(&client->dev, "Need I2C_FUNC_I2C\n");
return -ENODEV;
}
drv_data = devm_kzalloc(&client->dev, sizeof(*drv_data), GFP_KERNEL);
if (!drv_data)
return -ENOMEM;
drv_data->i2c = client;
drv_data->dev = &client->dev;
drv_data->priv = NULL;
i2c_set_clientdata(client, drv_data);
pdata = client->dev.platform_data;
if (!pdata && client->dev.of_node)
if (nfcmrvl_i2c_parse_dt(client->dev.of_node, &config) == 0)
pdata = &config;
if (!pdata)
return -EINVAL;
/* Request the read IRQ */
ret = devm_request_threaded_irq(&drv_data->i2c->dev, pdata->irq,
NULL, nfcmrvl_i2c_int_irq_thread_fn,
pdata->irq_polarity | IRQF_ONESHOT,
"nfcmrvl_i2c_int", drv_data);
if (ret < 0) {
nfc_err(&drv_data->i2c->dev,
"Unable to register IRQ handler\n");
return ret;
}
drv_data->priv = nfcmrvl_nci_register_dev(NFCMRVL_PHY_I2C,
drv_data, &i2c_ops,
&drv_data->i2c->dev, pdata);
if (IS_ERR(drv_data->priv))
return PTR_ERR(drv_data->priv);
drv_data->priv->support_fw_dnld = true;
return 0;
}
static int max8998_rtc_probe(struct platform_device *pdev)
{
struct max8998_dev *max8998 = dev_get_drvdata(pdev->dev.parent);
struct max8998_platform_data *pdata = max8998->pdata;
struct max8998_rtc_info *info;
int ret;
info = devm_kzalloc(&pdev->dev, sizeof(struct max8998_rtc_info),
GFP_KERNEL);
if (!info)
return -ENOMEM;
info->dev = &pdev->dev;
info->max8998 = max8998;
info->rtc = max8998->rtc;
platform_set_drvdata(pdev, info);
info->rtc_dev = devm_rtc_device_register(&pdev->dev, "max8998-rtc",
&max8998_rtc_ops, THIS_MODULE);
if (IS_ERR(info->rtc_dev)) {
ret = PTR_ERR(info->rtc_dev);
dev_err(&pdev->dev, "Failed to register RTC device: %d\n", ret);
return ret;
}
if (!max8998->irq_domain)
goto no_irq;
info->irq = irq_create_mapping(max8998->irq_domain, MAX8998_IRQ_ALARM0);
if (!info->irq) {
dev_warn(&pdev->dev, "Failed to map alarm IRQ\n");
goto no_irq;
}
ret = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
max8998_rtc_alarm_irq, 0, "rtc-alarm0", info);
if (ret < 0)
dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
info->irq, ret);
no_irq:
dev_info(&pdev->dev, "RTC CHIP NAME: %s\n", pdev->id_entry->name);
if (pdata && pdata->rtc_delay) {
info->lp3974_bug_workaround = true;
dev_warn(&pdev->dev, "LP3974 with RTC REGERR option."
" RTC updates will be extremely slow.\n");
}
return 0;
}
static int stih_cec_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct resource *res;
struct stih_cec *cec;
int ret;
cec = devm_kzalloc(dev, sizeof(*cec), GFP_KERNEL);
if (!cec)
return -ENOMEM;
cec->dev = dev;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
cec->regs = devm_ioremap_resource(dev, res);
if (IS_ERR(cec->regs))
return PTR_ERR(cec->regs);
cec->irq = platform_get_irq(pdev, 0);
if (cec->irq < 0)
return cec->irq;
ret = devm_request_threaded_irq(dev, cec->irq, stih_cec_irq_handler,
stih_cec_irq_handler_thread, 0,
pdev->name, cec);
if (ret)
return ret;
cec->clk = devm_clk_get(dev, "cec-clk");
if (IS_ERR(cec->clk)) {
dev_err(dev, "Cannot get cec clock\n");
return PTR_ERR(cec->clk);
}
cec->adap = cec_allocate_adapter(&sti_cec_adap_ops, cec,
CEC_NAME,
CEC_CAP_LOG_ADDRS | CEC_CAP_PASSTHROUGH |
CEC_CAP_PHYS_ADDR | CEC_CAP_TRANSMIT,
1, &pdev->dev);
ret = PTR_ERR_OR_ZERO(cec->adap);
if (ret)
return ret;
ret = cec_register_adapter(cec->adap);
if (ret) {
cec_delete_adapter(cec->adap);
return ret;
}
platform_set_drvdata(pdev, cec);
return 0;
}
static int hdmic_probe(struct platform_device *pdev)
{
struct panel_drv_data *ddata;
struct omap_dss_device *dssdev;
struct gpio_desc *gpio;
int r;
ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
if (!ddata)
return -ENOMEM;
platform_set_drvdata(pdev, ddata);
ddata->dev = &pdev->dev;
mutex_init(&ddata->hpd_lock);
/* HPD GPIO */
gpio = devm_gpiod_get_optional(&pdev->dev, "hpd", GPIOD_IN);
if (IS_ERR(gpio)) {
dev_err(&pdev->dev, "failed to parse HPD gpio\n");
return PTR_ERR(gpio);
}
ddata->hpd_gpio = gpio;
if (ddata->hpd_gpio) {
r = devm_request_threaded_irq(&pdev->dev,
gpiod_to_irq(ddata->hpd_gpio),
NULL, hdmic_hpd_isr,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING |
IRQF_ONESHOT,
"hdmic hpd", ddata);
if (r)
return r;
}
dssdev = &ddata->dssdev;
dssdev->ops = &hdmic_ops;
dssdev->dev = &pdev->dev;
dssdev->type = OMAP_DISPLAY_TYPE_HDMI;
dssdev->display = true;
dssdev->owner = THIS_MODULE;
dssdev->of_ports = BIT(0);
dssdev->ops_flags = ddata->hpd_gpio
? OMAP_DSS_DEVICE_OP_DETECT | OMAP_DSS_DEVICE_OP_HPD
: 0;
omapdss_display_init(dssdev);
omapdss_device_register(dssdev);
return 0;
}
static int goodix_ts_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct goodix_ts_data *ts;
unsigned long irq_flags;
int error;
u16 version_info;
dev_dbg(&client->dev, "I2C Address: 0x%02x\n", client->addr);
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
dev_err(&client->dev, "I2C check functionality failed.\n");
return -ENXIO;
}
ts = devm_kzalloc(&client->dev, sizeof(*ts), GFP_KERNEL);
if (!ts)
return -ENOMEM;
ts->client = client;
i2c_set_clientdata(client, ts);
error = goodix_i2c_test(client);
if (error) {
dev_err(&client->dev, "I2C communication failure: %d\n", error);
return error;
}
error = goodix_read_version(client, &version_info);
if (error) {
dev_err(&client->dev, "Read version failed.\n");
return error;
}
goodix_read_config(ts);
error = goodix_request_input_dev(ts);
if (error)
return error;
irq_flags = goodix_irq_flags[ts->int_trigger_type] | IRQF_ONESHOT;
error = devm_request_threaded_irq(&ts->client->dev, client->irq,
NULL, goodix_ts_irq_handler,
irq_flags, client->name, ts);
if (error) {
dev_err(&client->dev, "request IRQ failed: %d\n", error);
return error;
}
return 0;
}
int wcd9xxx_spmi_request_irq(int irq, irq_handler_t handler,
const char *name, void *priv)
{
int rc;
#ifdef VENDOR_EDIT
//[email protected], 2015/07/01, Add for system not reume when in sleep mode
unsigned long irq_flags;
if (strcmp(name, "mbhc sw intr")) {
irq_flags = IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING |
IRQF_ONESHOT;
} else {
irq_flags = IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING |
IRQF_ONESHOT | IRQF_NO_SUSPEND;
}
#endif /* VENDOR_EDIT */
map.linuxirq[irq] =
spmi_get_irq_byname(map.spmi[BIT_BYTE(irq)], NULL,
irq_names[irq]);
#ifndef VENDOR_EDIT
//[email protected], 2015/07/01, Modify for system not reume when in sleep mode
/*
rc = devm_request_threaded_irq(&map.spmi[BIT_BYTE(irq)]->dev,
map.linuxirq[irq], NULL,
wcd9xxx_spmi_irq_handler,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING
| IRQF_ONESHOT,
name, priv);
*/
#else /* VENDOR_EDIT */
rc = devm_request_threaded_irq(&map.spmi[BIT_BYTE(irq)]->dev,
map.linuxirq[irq], NULL,
wcd9xxx_spmi_irq_handler,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING
| IRQF_ONESHOT,
name, priv);
#endif /* VENDOR_EDIT */
if (rc < 0) {
dev_err(&map.spmi[BIT_BYTE(irq)]->dev,
"Can't request %d IRQ\n", irq);
return rc;
}
dev_dbg(&map.spmi[BIT_BYTE(irq)]->dev,
"irq %d linuxIRQ: %d\n", irq, map.linuxirq[irq]);
map.mask[BIT_BYTE(irq)] &= ~BYTE_BIT_MASK(irq);
map.handler[irq] = handler;
enable_irq_wake(map.linuxirq[irq]);
return 0;
}
static int hisi_thermal_probe(struct platform_device *pdev)
{
struct hisi_thermal_data *data;
int (*platform_probe)(struct hisi_thermal_data *);
struct device *dev = &pdev->dev;
int ret;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->pdev = pdev;
platform_set_drvdata(pdev, data);
platform_probe = of_device_get_match_data(dev);
if (!platform_probe) {
dev_err(dev, "failed to get probe func\n");
return -EINVAL;
}
ret = platform_probe(data);
if (ret)
return ret;
ret = hisi_thermal_register_sensor(pdev, data,
&data->sensor);
if (ret) {
dev_err(dev, "failed to register thermal sensor: %d\n", ret);
return ret;
}
ret = data->enable_sensor(data);
if (ret) {
dev_err(dev, "Failed to setup the sensor: %d\n", ret);
return ret;
}
if (data->irq) {
ret = devm_request_threaded_irq(dev, data->irq, NULL,
hisi_thermal_alarm_irq_thread,
IRQF_ONESHOT, "hisi_thermal", data);
if (ret < 0) {
dev_err(dev, "failed to request alarm irq: %d\n", ret);
return ret;
}
}
hisi_thermal_toggle_sensor(&data->sensor, true);
return 0;
}
int mmc_gpio_request_cd(struct mmc_host *host, unsigned int gpio)
{
struct mmc_gpio *ctx;
int irq = gpio_to_irq(gpio);
int ret;
int irq_trigger_type;
ret = mmc_gpio_alloc(host);
if (ret < 0)
return ret;
host->cd_pin_depth = 0;
spin_lock_init(&host->lock_cd_pin);
ctx = host->slot.handler_priv;
ret = devm_gpio_request_one(&host->class_dev, gpio, GPIOF_DIR_IN,
ctx->cd_label);
if (ret < 0) {
return ret;
}
if (irq >= 0 && host->caps & MMC_CAP_NEEDS_POLL)
irq = -EINVAL;
ctx->cd_gpio = gpio;
host->slot.cd_irq = irq;
ret = mmc_gpio_get_status(host);
if (ret < 0)
return ret;
irq_trigger_type = (ret == 0 ? IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING);
ctx->status = ret;
if (irq >= 0) {
ret = devm_request_threaded_irq(&host->class_dev, irq,
NULL, mmc_gpio_cd_irqt,
irq_trigger_type | IRQF_ONESHOT,
ctx->cd_label, host);
if (ret < 0)
irq = ret;
}
if (irq < 0)
host->caps |= MMC_CAP_NEEDS_POLL;
return 0;
}
