static int st33zp24_spi_acpi_request_resources(struct spi_device *spi_dev)
{
struct tpm_chip *chip = spi_get_drvdata(spi_dev);
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
struct st33zp24_spi_phy *phy = tpm_dev->phy_id;
struct gpio_desc *gpiod_lpcpd;
struct device *dev = &spi_dev->dev;
int ret;
ret = acpi_dev_add_driver_gpios(ACPI_COMPANION(dev), acpi_st33zp24_gpios);
if (ret)
return ret;
/* Get LPCPD GPIO from ACPI */
gpiod_lpcpd = devm_gpiod_get(dev, "lpcpd", GPIOD_OUT_HIGH);
if (IS_ERR(gpiod_lpcpd)) {
dev_err(dev, "Failed to retrieve lpcpd-gpios from acpi.\n");
phy->io_lpcpd = -1;
/*
* lpcpd pin is not specified. This is not an issue as
* power management can be also managed by TPM specific
* commands. So leave with a success status code.
*/
return 0;
}
phy->io_lpcpd = desc_to_gpio(gpiod_lpcpd);
return 0;
}
static int rfkill_gpio_acpi_probe(struct device *dev,
struct rfkill_gpio_data *rfkill)
{
const struct acpi_device_id *id;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return -ENODEV;
rfkill->name = dev_name(dev);
rfkill->type = (unsigned)id->driver_data;
return acpi_dev_add_driver_gpios(ACPI_COMPANION(dev),
acpi_rfkill_default_gpios);
}
static int gsl_ts_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
struct gsl_ts_data *ts;
const struct firmware *fw;
unsigned long irqflags;
int error;
dev_warn(&client->dev, "%s: got a device named %s at address 0x%x, IRQ %d, flags 0x%x\n", __func__, client->name, client->addr, client->irq, client->flags);
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
dev_err(&client->dev, "%s: i2c check functionality error\n", __func__);
return -ENXIO;
}
if (client->irq <= 0) {
dev_err(&client->dev, "%s: missing IRQ configuration\n", __func__);
return -ENODEV;
}
ts = devm_kzalloc(&client->dev, sizeof(struct gsl_ts_data), GFP_KERNEL);
if (!ts) {
return -ENOMEM;
}
ts->client = client;
i2c_set_clientdata(client, ts);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0)
/* Set up ACPI device descriptor GPIO name mappings.
* This is a fallback, it will only be used if the system does not
* provide a corresponding _DSD entry.
*/
error = acpi_dev_add_driver_gpios(ACPI_COMPANION(&client->dev), gsl_ts_acpi_gpios);
if (error < 0) {
dev_warn(&client->dev, "%s: failed to register GPIO names, continuing anyway\n", __func__);
}
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 17, 0)
ts->gpio = devm_gpiod_get(&client->dev, GSL_PWR_GPIO);
#else
ts->gpio = devm_gpiod_get(&client->dev, GSL_PWR_GPIO, GPIOD_OUT_LOW);
#endif
if (IS_ERR(ts->gpio)) {
dev_err(&client->dev, "%s: error obtaining power pin GPIO resource\n", __func__);
error = PTR_ERR(ts->gpio);
goto release_gpios;
}
#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 17, 0)
error = gpiod_direction_output(ts->gpio, 0);
if (error < 0) {
dev_err(&client->dev, "%s: error setting GPIO pin direction\n", __func__);
goto release_gpios;
}
#endif
if (ACPI_COMPANION(&client->dev)) {
/* Wake the device up with a power on reset */
error = acpi_bus_set_power(ACPI_HANDLE(&client->dev), ACPI_STATE_D3);
if (error == 0) {
error = acpi_bus_set_power(ACPI_HANDLE(&client->dev), ACPI_STATE_D0);
}
if (error) {
dev_err(&client->dev, "%s: failed to wake up device through ACPI: %d, continuting anyway\n", __func__, error);
}
}
error = request_firmware(&fw, GSL_FW_NAME, &ts->client->dev);
if (error < 0) {
dev_err(&client->dev, "%s: failed to load firmware: %d\n", __func__, error);
goto release_gpios;
}
error = gsl_ts_init(ts, fw);
if (error < 0) {
dev_err(&client->dev, "%s: failed to initialize: %d\n", __func__, error);
goto release_fw;
}
ts->input = devm_input_allocate_device(&client->dev);
if (!ts->input) {
dev_err(&client->dev, "%s: failed to allocate input device\n", __func__);
error = -ENOMEM;
goto release_fw;
}
ts->input->name = "Silead GSLx680 Touchscreen";
ts->input->id.bustype = BUS_I2C;
ts->input->phys = "input/ts";
input_set_capability(ts->input, EV_ABS, ABS_X);
input_set_capability(ts->input, EV_ABS, ABS_Y);
input_set_abs_params(ts->input, ABS_MT_POSITION_X, 0, ts->x_max, ts->jitter, ts->deadzone);
input_set_abs_params(ts->input, ABS_MT_POSITION_Y, 0, ts->y_max, ts->jitter, ts->deadzone);
input_mt_init_slots(ts->input, ts->multi_touches, INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED | INPUT_MT_TRACK);
input_set_drvdata(ts->input, ts);
error = input_register_device(ts->input);
if (error) {
dev_err(&client->dev, "%s: unable to register input device: %d\n", __func__, error);
goto release_fw;
}
/*
* Systems using device tree should set up interrupt via DTS,
* the rest will use the default falling edge interrupts.
*/
irqflags = client->dev.of_node ? 0 : IRQF_TRIGGER_FALLING;
/* Set up interrupt handler - do we still need to account for shared interrupts? */
error = devm_request_threaded_irq(
&client->dev,
client->irq,
NULL,
gsl_ts_irq,
irqflags | IRQF_ONESHOT,
client->name,
ts
);
if (error) {
dev_err(&client->dev, "%s: failed to register interrupt\n", __func__);
goto release_fw;
}
/* Execute the controller startup sequence */
error = gsl_ts_reset_chip(client);
if (error < 0) {
dev_err(&client->dev, "%s: chip reset failed\n", __func__);
goto release_fw;
}
error = gsl_ts_write_fw(ts, fw);
if (error < 0) {
dev_err(&client->dev, "%s: firmware transfer failed\n", __func__);
goto release_fw;
}
error = gsl_ts_startup_chip(client);
if (error < 0) {
dev_err(&client->dev, "%s: chip startup failed\n", __func__);
goto release_fw;
}
/*
* Systems using device tree should set up wakeup via DTS,
* the rest will configure device as wakeup source by default.
*/
if (!client->dev.of_node) {
device_init_wakeup(&client->dev, true);
}
ts->state = GSL_TS_GREEN;
release_fw:
if (fw) {
release_firmware(fw);
}
release_gpios:
if (error < 0) {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0)
acpi_dev_remove_driver_gpios(ACPI_COMPANION(&client->dev));
#endif
return error;
}
return 0;
}
static int dwc3_pci_quirks(struct pci_dev *pdev)
{
if (pdev->vendor == PCI_VENDOR_ID_AMD &&
pdev->device == PCI_DEVICE_ID_AMD_NL_USB) {
struct dwc3_platform_data pdata;
memset(&pdata, 0, sizeof(pdata));
pdata.has_lpm_erratum = true;
pdata.lpm_nyet_threshold = 0xf;
pdata.u2exit_lfps_quirk = true;
pdata.u2ss_inp3_quirk = true;
pdata.req_p1p2p3_quirk = true;
pdata.del_p1p2p3_quirk = true;
pdata.del_phy_power_chg_quirk = true;
pdata.lfps_filter_quirk = true;
pdata.rx_detect_poll_quirk = true;
pdata.tx_de_emphasis_quirk = true;
pdata.tx_de_emphasis = 1;
/*
* FIXME these quirks should be removed when AMD NL
* taps out
*/
pdata.disable_scramble_quirk = true;
pdata.dis_u3_susphy_quirk = true;
pdata.dis_u2_susphy_quirk = true;
return platform_device_add_data(pci_get_drvdata(pdev), &pdata,
sizeof(pdata));
}
if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
pdev->device == PCI_DEVICE_ID_INTEL_BYT) {
struct gpio_desc *gpio;
acpi_dev_add_driver_gpios(ACPI_COMPANION(&pdev->dev),
acpi_dwc3_byt_gpios);
/*
* These GPIOs will turn on the USB2 PHY. Note that we have to
* put the gpio descriptors again here because the phy driver
* might want to grab them, too.
*/
gpio = gpiod_get_optional(&pdev->dev, "cs", GPIOD_OUT_LOW);
if (IS_ERR(gpio))
return PTR_ERR(gpio);
gpiod_set_value_cansleep(gpio, 1);
gpiod_put(gpio);
gpio = gpiod_get_optional(&pdev->dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(gpio))
return PTR_ERR(gpio);
if (gpio) {
gpiod_set_value_cansleep(gpio, 1);
gpiod_put(gpio);
usleep_range(10000, 11000);
}
}
if (pdev->vendor == PCI_VENDOR_ID_SYNOPSYS &&
(pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 ||
pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI ||
pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31)) {
struct dwc3_platform_data pdata;
memset(&pdata, 0, sizeof(pdata));
pdata.usb3_lpm_capable = true;
pdata.has_lpm_erratum = true;
pdata.dis_enblslpm_quirk = true;
return platform_device_add_data(pci_get_drvdata(pdev), &pdata,
sizeof(pdata));
}
return 0;
}
static int dwc3_pci_quirks(struct dwc3_pci *dwc)
{
struct platform_device *dwc3 = dwc->dwc3;
struct pci_dev *pdev = dwc->pci;
int ret;
struct property_entry sysdev_property[] = {
PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
{ },
};
ret = platform_device_add_properties(dwc3, sysdev_property);
if (ret)
return ret;
if (pdev->vendor == PCI_VENDOR_ID_AMD &&
pdev->device == PCI_DEVICE_ID_AMD_NL_USB) {
struct property_entry properties[] = {
PROPERTY_ENTRY_BOOL("snps,has-lpm-erratum"),
PROPERTY_ENTRY_U8("snps,lpm-nyet-threshold", 0xf),
PROPERTY_ENTRY_BOOL("snps,u2exit_lfps_quirk"),
PROPERTY_ENTRY_BOOL("snps,u2ss_inp3_quirk"),
PROPERTY_ENTRY_BOOL("snps,req_p1p2p3_quirk"),
PROPERTY_ENTRY_BOOL("snps,del_p1p2p3_quirk"),
PROPERTY_ENTRY_BOOL("snps,del_phy_power_chg_quirk"),
PROPERTY_ENTRY_BOOL("snps,lfps_filter_quirk"),
PROPERTY_ENTRY_BOOL("snps,rx_detect_poll_quirk"),
PROPERTY_ENTRY_BOOL("snps,tx_de_emphasis_quirk"),
PROPERTY_ENTRY_U8("snps,tx_de_emphasis", 1),
/*
* FIXME these quirks should be removed when AMD NL
* tapes out
*/
PROPERTY_ENTRY_BOOL("snps,disable_scramble_quirk"),
PROPERTY_ENTRY_BOOL("snps,dis_u3_susphy_quirk"),
PROPERTY_ENTRY_BOOL("snps,dis_u2_susphy_quirk"),
{ },
};
return platform_device_add_properties(dwc3, properties);
}
if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
int ret;
struct property_entry properties[] = {
PROPERTY_ENTRY_STRING("dr-mode", "peripheral"),
{ }
};
ret = platform_device_add_properties(dwc3, properties);
if (ret < 0)
return ret;
if (pdev->device == PCI_DEVICE_ID_INTEL_BXT ||
pdev->device == PCI_DEVICE_ID_INTEL_BXT_M) {
acpi_str_to_uuid(PCI_INTEL_BXT_DSM_UUID, dwc->uuid);
dwc->has_dsm_for_pm = true;
}
if (pdev->device == PCI_DEVICE_ID_INTEL_BYT) {
struct gpio_desc *gpio;
acpi_dev_add_driver_gpios(ACPI_COMPANION(&pdev->dev),
acpi_dwc3_byt_gpios);
/*
* These GPIOs will turn on the USB2 PHY. Note that we have to
* put the gpio descriptors again here because the phy driver
* might want to grab them, too.
*/
gpio = gpiod_get_optional(&pdev->dev, "cs", GPIOD_OUT_LOW);
if (IS_ERR(gpio))
return PTR_ERR(gpio);
gpiod_set_value_cansleep(gpio, 1);
gpiod_put(gpio);
gpio = gpiod_get_optional(&pdev->dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(gpio))
return PTR_ERR(gpio);
if (gpio) {
gpiod_set_value_cansleep(gpio, 1);
gpiod_put(gpio);
usleep_range(10000, 11000);
}
}
}
if (pdev->vendor == PCI_VENDOR_ID_SYNOPSYS &&
(pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 ||
pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI ||
pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31)) {
struct property_entry properties[] = {
PROPERTY_ENTRY_BOOL("snps,usb3_lpm_capable"),
PROPERTY_ENTRY_BOOL("snps,has-lpm-erratum"),
PROPERTY_ENTRY_BOOL("snps,dis_enblslpm_quirk"),
{ },
};
return platform_device_add_properties(dwc3, properties);
}
return 0;
}
