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;
}
static int edp_gpio_config(struct edp_ctrl *ctrl)
{
struct device *dev = &ctrl->pdev->dev;
int ret;
ctrl->panel_hpd_gpio = devm_gpiod_get(dev, "panel-hpd", GPIOD_IN);
if (IS_ERR(ctrl->panel_hpd_gpio)) {
ret = PTR_ERR(ctrl->panel_hpd_gpio);
ctrl->panel_hpd_gpio = NULL;
pr_err("%s: cannot get panel-hpd-gpios, %d\n", __func__, ret);
return ret;
}
ctrl->panel_en_gpio = devm_gpiod_get(dev, "panel-en", GPIOD_OUT_LOW);
if (IS_ERR(ctrl->panel_en_gpio)) {
ret = PTR_ERR(ctrl->panel_en_gpio);
ctrl->panel_en_gpio = NULL;
pr_err("%s: cannot get panel-en-gpios, %d\n", __func__, ret);
return ret;
}
DBG("gpio on");
return 0;
}
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 gpio_poweroff_probe(struct platform_device *pdev)
{
bool input = false;
enum gpiod_flags flags;
/* If a pm_power_off function has already been added, leave it alone */
if (pm_power_off != NULL) {
dev_err(&pdev->dev,
"%s: pm_power_off function already registered",
__func__);
return -EBUSY;
}
input = device_property_read_bool(&pdev->dev, "input");
if (input)
flags = GPIOD_IN;
else
flags = GPIOD_OUT_LOW;
device_property_read_u32(&pdev->dev, "active-delay-ms", &active_delay);
device_property_read_u32(&pdev->dev, "inactive-delay-ms",
&inactive_delay);
device_property_read_u32(&pdev->dev, "timeout-ms", &timeout);
reset_gpio = devm_gpiod_get(&pdev->dev, NULL, flags);
if (IS_ERR(reset_gpio))
return PTR_ERR(reset_gpio);
pm_power_off = &gpio_poweroff_do_poweroff;
return 0;
}
static int wm8524_codec_probe(struct platform_device *pdev)
{
struct wm8524_priv *wm8524;
int ret;
wm8524 = devm_kzalloc(&pdev->dev, sizeof(struct wm8524_priv),
GFP_KERNEL);
if (wm8524 == NULL)
return -ENOMEM;
platform_set_drvdata(pdev, wm8524);
wm8524->mute = devm_gpiod_get(&pdev->dev, "wlf,mute", GPIOD_OUT_LOW);
if (IS_ERR(wm8524->mute)) {
ret = PTR_ERR(wm8524->mute);
dev_err(&pdev->dev, "Failed to get mute line: %d\n", ret);
return ret;
}
ret = devm_snd_soc_register_component(&pdev->dev,
&soc_component_dev_wm8524, &wm8524_dai, 1);
if (ret < 0)
dev_err(&pdev->dev, "Failed to register component: %d\n", ret);
return ret;
}
static int mst_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
struct device *dev = skt->socket.dev.parent;
struct max1600 *m;
int ret;
skt->stat[SOC_STAT_CD].name = skt->nr ? "bdetect" : "adetect";
skt->stat[SOC_STAT_BVD1].name = skt->nr ? "bbvd1" : "abvd1";
skt->stat[SOC_STAT_BVD2].name = skt->nr ? "bbvd2" : "abvd2";
skt->stat[SOC_STAT_RDY].name = skt->nr ? "bready" : "aready";
skt->stat[SOC_STAT_VS1].name = skt->nr ? "bvs1" : "avs1";
skt->stat[SOC_STAT_VS2].name = skt->nr ? "bvs2" : "avs2";
skt->gpio_reset = devm_gpiod_get(dev, skt->nr ? "breset" : "areset",
GPIOD_OUT_HIGH);
if (IS_ERR(skt->gpio_reset))
return PTR_ERR(skt->gpio_reset);
ret = max1600_init(dev, &m, skt->nr ? MAX1600_CHAN_B : MAX1600_CHAN_A,
MAX1600_CODE_HIGH);
if (ret)
return ret;
skt->driver_data = m;
return soc_pcmcia_request_gpiods(skt);
}
static int i2c_dw_init_recovery_info(struct dw_i2c_dev *dev)
{
struct i2c_bus_recovery_info *rinfo = &dev->rinfo;
struct i2c_adapter *adap = &dev->adapter;
struct gpio_desc *gpio;
int r;
gpio = devm_gpiod_get(dev->dev, "scl", GPIOD_OUT_HIGH);
if (IS_ERR(gpio)) {
r = PTR_ERR(gpio);
if (r == -ENOENT || r == -ENOSYS)
return 0;
return r;
}
rinfo->scl_gpiod = gpio;
gpio = devm_gpiod_get_optional(dev->dev, "sda", GPIOD_IN);
if (IS_ERR(gpio))
return PTR_ERR(gpio);
rinfo->sda_gpiod = gpio;
rinfo->recover_bus = i2c_generic_scl_recovery;
rinfo->prepare_recovery = i2c_dw_prepare_recovery;
rinfo->unprepare_recovery = i2c_dw_unprepare_recovery;
adap->bus_recovery_info = rinfo;
dev_info(dev->dev, "running with gpio recovery mode! scl%s",
rinfo->sda_gpiod ? ",sda" : "");
return 0;
}
static int st7735r_probe(struct spi_device *spi)
{
struct device *dev = &spi->dev;
struct mipi_dbi *mipi;
struct gpio_desc *dc;
u32 rotation = 0;
int ret;
mipi = devm_kzalloc(dev, sizeof(*mipi), GFP_KERNEL);
if (!mipi)
return -ENOMEM;
mipi->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(mipi->reset)) {
DRM_DEV_ERROR(dev, "Failed to get gpio 'reset'\n");
return PTR_ERR(mipi->reset);
}
dc = devm_gpiod_get(dev, "dc", GPIOD_OUT_LOW);
if (IS_ERR(dc)) {
DRM_DEV_ERROR(dev, "Failed to get gpio 'dc'\n");
return PTR_ERR(dc);
}
mipi->backlight = devm_of_find_backlight(dev);
if (IS_ERR(mipi->backlight))
return PTR_ERR(mipi->backlight);
device_property_read_u32(dev, "rotation", &rotation);
ret = mipi_dbi_spi_init(spi, mipi, dc);
if (ret)
return ret;
/* Cannot read from Adafruit 1.8" display via SPI */
mipi->read_commands = NULL;
ret = mipi_dbi_init(&spi->dev, mipi, &jd_t18003_t01_pipe_funcs,
&st7735r_driver, &jd_t18003_t01_mode, rotation);
if (ret)
return ret;
spi_set_drvdata(spi, mipi);
return devm_tinydrm_register(&mipi->tinydrm);
}
static int xdmsc_parse_of(struct xdmsc_dev *xdmsc)
{
struct device *dev = xdmsc->xvip.dev;
struct device_node *node = dev->of_node;
struct device_node *ports;
struct device_node *port;
u32 port_id = 0;
int rval;
rval = of_property_read_u32(node, "xlnx,max-height",
&xdmsc->max_height);
if (rval < 0) {
dev_err(dev, "missing xlnx,max-height property!");
return -EINVAL;
} else if (xdmsc->max_height > XDEMOSAIC_MAX_HEIGHT ||
xdmsc->max_height < XDEMOSAIC_MIN_HEIGHT) {
dev_err(dev, "Invalid height in dt");
return -EINVAL;
}
rval = of_property_read_u32(node, "xlnx,max-width",
&xdmsc->max_width);
if (rval < 0) {
dev_err(dev, "missing xlnx,max-width property!");
return -EINVAL;
} else if (xdmsc->max_width > XDEMOSAIC_MAX_WIDTH ||
xdmsc->max_width < XDEMOSAIC_MIN_WIDTH) {
dev_err(dev, "Invalid width in dt");
return -EINVAL;
}
ports = of_get_child_by_name(node, "ports");
if (!ports)
ports = node;
/* Get the format description for each pad */
for_each_child_of_node(ports, port) {
if (port->name && (of_node_cmp(port->name, "port") == 0)) {
rval = of_property_read_u32(port, "reg", &port_id);
if (rval < 0) {
dev_err(dev, "No reg in DT");
return rval;
}
if (port_id != 0 && port_id != 1) {
dev_err(dev, "Invalid reg in DT");
return -EINVAL;
}
}
}
xdmsc->rst_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(xdmsc->rst_gpio)) {
if (PTR_ERR(xdmsc->rst_gpio) != -EPROBE_DEFER)
dev_err(dev, "Reset GPIO not setup in DT");
return PTR_ERR(xdmsc->rst_gpio);
}
return 0;
}
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;
}
static int gpio_vibrator_probe(struct platform_device *pdev)
{
struct gpio_vibrator *vibrator;
int err;
vibrator = devm_kzalloc(&pdev->dev, sizeof(*vibrator), GFP_KERNEL);
if (!vibrator)
return -ENOMEM;
vibrator->input = devm_input_allocate_device(&pdev->dev);
if (!vibrator->input)
return -ENOMEM;
vibrator->vcc = devm_regulator_get(&pdev->dev, "vcc");
err = PTR_ERR_OR_ZERO(vibrator->vcc);
if (err) {
if (err != -EPROBE_DEFER)
dev_err(&pdev->dev, "Failed to request regulator: %d\n",
err);
return err;
}
vibrator->gpio = devm_gpiod_get(&pdev->dev, "enable", GPIOD_OUT_LOW);
err = PTR_ERR_OR_ZERO(vibrator->gpio);
if (err) {
if (err != -EPROBE_DEFER)
dev_err(&pdev->dev, "Failed to request main gpio: %d\n",
err);
return err;
}
INIT_WORK(&vibrator->play_work, gpio_vibrator_play_work);
vibrator->input->name = "gpio-vibrator";
vibrator->input->id.bustype = BUS_HOST;
vibrator->input->close = gpio_vibrator_close;
input_set_drvdata(vibrator->input, vibrator);
input_set_capability(vibrator->input, EV_FF, FF_RUMBLE);
err = input_ff_create_memless(vibrator->input, NULL,
gpio_vibrator_play_effect);
if (err) {
dev_err(&pdev->dev, "Couldn't create FF dev: %d\n", err);
return err;
}
err = input_register_device(vibrator->input);
if (err) {
dev_err(&pdev->dev, "Couldn't register input dev: %d\n", err);
return err;
}
platform_set_drvdata(pdev, vibrator);
return 0;
}
static int adp1653_of_init(struct i2c_client *client,
struct adp1653_flash *flash,
struct device_node *node)
{
struct adp1653_platform_data *pd;
struct device_node *child;
pd = devm_kzalloc(&client->dev, sizeof(*pd), GFP_KERNEL);
if (!pd)
return -ENOMEM;
flash->platform_data = pd;
child = of_get_child_by_name(node, "flash");
if (!child)
return -EINVAL;
if (of_property_read_u32(child, "flash-timeout-us",
&pd->max_flash_timeout))
goto err;
if (of_property_read_u32(child, "flash-max-microamp",
&pd->max_flash_intensity))
goto err;
pd->max_flash_intensity /= 1000;
if (of_property_read_u32(child, "led-max-microamp",
&pd->max_torch_intensity))
goto err;
pd->max_torch_intensity /= 1000;
of_node_put(child);
child = of_get_child_by_name(node, "indicator");
if (!child)
return -EINVAL;
if (of_property_read_u32(child, "led-max-microamp",
&pd->max_indicator_intensity))
goto err;
of_node_put(child);
pd->enable_gpio = devm_gpiod_get(&client->dev, "enable", GPIOD_OUT_LOW);
if (!pd->enable_gpio) {
dev_err(&client->dev, "Error getting GPIO\n");
return -EINVAL;
}
return 0;
err:
dev_err(&client->dev, "Required property not found\n");
of_node_put(child);
return -EINVAL;
}
static int hx8357d_probe(struct spi_device *spi)
{
struct device *dev = &spi->dev;
struct drm_device *drm;
struct mipi_dbi *mipi;
struct gpio_desc *dc;
u32 rotation = 0;
int ret;
mipi = kzalloc(sizeof(*mipi), GFP_KERNEL);
if (!mipi)
return -ENOMEM;
drm = &mipi->drm;
ret = devm_drm_dev_init(dev, drm, &hx8357d_driver);
if (ret) {
kfree(mipi);
return ret;
}
drm_mode_config_init(drm);
dc = devm_gpiod_get(dev, "dc", GPIOD_OUT_LOW);
if (IS_ERR(dc)) {
DRM_DEV_ERROR(dev, "Failed to get gpio 'dc'\n");
return PTR_ERR(dc);
}
mipi->backlight = devm_of_find_backlight(dev);
if (IS_ERR(mipi->backlight))
return PTR_ERR(mipi->backlight);
device_property_read_u32(dev, "rotation", &rotation);
ret = mipi_dbi_spi_init(spi, mipi, dc);
if (ret)
return ret;
ret = mipi_dbi_init(mipi, &hx8357d_pipe_funcs, &yx350hv15_mode, rotation);
if (ret)
return ret;
drm_mode_config_reset(drm);
ret = drm_dev_register(drm, 0);
if (ret)
return ret;
spi_set_drvdata(spi, drm);
drm_fbdev_generic_setup(drm, 0);
return 0;
}
static int xcsc_parse_of(struct xilinx_csc *csc)
{
int ret;
struct device_node *node = csc->dev->of_node;
csc->aclk = devm_clk_get(csc->dev, NULL);
if (IS_ERR(csc->aclk)) {
ret = PTR_ERR(csc->aclk);
dev_err(csc->dev, "failed to get aclk %d\n", ret);
return ret;
}
ret = of_property_read_u32(node, "xlnx,video-width",
&csc->color_depth);
if (ret < 0) {
dev_info(csc->dev, "video width not present in DT\n");
return ret;
}
if (csc->color_depth != 8 && csc->color_depth != 10 &&
csc->color_depth != 12 && csc->color_depth != 16) {
dev_err(csc->dev, "Invalid video width in DT\n");
return -EINVAL;
}
/* Reset GPIO */
csc->rst_gpio = devm_gpiod_get(csc->dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(csc->rst_gpio)) {
if (PTR_ERR(csc->rst_gpio) != -EPROBE_DEFER)
dev_err(csc->dev, "Reset GPIO not setup in DT");
return PTR_ERR(csc->rst_gpio);
}
ret = of_property_read_u32(node, "xlnx,max-height", &csc->max_height);
if (ret < 0) {
dev_err(csc->dev, "xlnx,max-height is missing!");
return -EINVAL;
} else if (csc->max_height > XCSC_MAX_HEIGHT ||
csc->max_height < XCSC_MIN_HEIGHT) {
dev_err(csc->dev, "Invalid height in dt");
return -EINVAL;
}
ret = of_property_read_u32(node, "xlnx,max-width", &csc->max_width);
if (ret < 0) {
dev_err(csc->dev, "xlnx,max-width is missing!");
return -EINVAL;
} else if (csc->max_width > XCSC_MAX_WIDTH ||
csc->max_width < XCSC_MIN_WIDTH) {
dev_err(csc->dev, "Invalid width in dt");
return -EINVAL;
}
return 0;
}
static int ams_delta_panel_probe(struct platform_device *pdev)
{
struct lcd_device *lcd_device = NULL;
int ret;
gpiod_vblen = devm_gpiod_get(&pdev->dev, "vblen", GPIOD_OUT_LOW);
if (IS_ERR(gpiod_vblen)) {
ret = PTR_ERR(gpiod_vblen);
dev_err(&pdev->dev, "VBLEN GPIO request failed (%d)\n", ret);
return ret;
}
gpiod_ndisp = devm_gpiod_get(&pdev->dev, "ndisp", GPIOD_OUT_LOW);
if (IS_ERR(gpiod_ndisp)) {
ret = PTR_ERR(gpiod_ndisp);
dev_err(&pdev->dev, "NDISP GPIO request failed (%d)\n", ret);
return ret;
}
#ifdef CONFIG_LCD_CLASS_DEVICE
lcd_device = lcd_device_register("omapfb", &pdev->dev, NULL,
&ams_delta_lcd_ops);
if (IS_ERR(lcd_device)) {
ret = PTR_ERR(lcd_device);
dev_err(&pdev->dev, "failed to register device\n");
return ret;
}
platform_set_drvdata(pdev, lcd_device);
lcd_device->props.max_contrast = AMS_DELTA_MAX_CONTRAST;
#endif
ams_delta_lcd_set_contrast(lcd_device, AMS_DELTA_DEFAULT_CONTRAST);
ams_delta_lcd_set_power(lcd_device, FB_BLANK_UNBLANK);
omapfb_register_panel(&ams_delta_panel);
return 0;
}
static int edp_gpio_config(struct edp_ctrl *ctrl)
{
struct device *dev = &ctrl->pdev->dev;
int ret;
ctrl->panel_hpd_gpio = devm_gpiod_get(dev, "panel-hpd");
if (IS_ERR(ctrl->panel_hpd_gpio)) {
ret = PTR_ERR(ctrl->panel_hpd_gpio);
ctrl->panel_hpd_gpio = NULL;
pr_err("%s: cannot get panel-hpd-gpios, %d\n", __func__, ret);
return ret;
}
ret = gpiod_direction_input(ctrl->panel_hpd_gpio);
if (ret) {
pr_err("%s: Set direction for hpd failed, %d\n", __func__, ret);
return ret;
}
ctrl->panel_en_gpio = devm_gpiod_get(dev, "panel-en");
if (IS_ERR(ctrl->panel_en_gpio)) {
ret = PTR_ERR(ctrl->panel_en_gpio);
ctrl->panel_en_gpio = NULL;
pr_err("%s: cannot get panel-en-gpios, %d\n", __func__, ret);
return ret;
}
ret = gpiod_direction_output(ctrl->panel_en_gpio, 0);
if (ret) {
pr_err("%s: Set direction for panel_en failed, %d\n",
__func__, ret);
return ret;
}
DBG("gpio on");
return 0;
}
/**
* phy_mdm6600_init_lines() - initialize mdm6600 GPIO lines
* @ddata: device driver data
*/
static int phy_mdm6600_init_lines(struct phy_mdm6600 *ddata)
{
struct device *dev = ddata->dev;
int i;
/* MDM6600 control lines */
for (i = 0; i < ARRAY_SIZE(phy_mdm6600_ctrl_gpio_map); i++) {
const struct phy_mdm6600_map *map =
&phy_mdm6600_ctrl_gpio_map[i];
struct gpio_desc **gpio = &ddata->ctrl_gpios[i];
*gpio = devm_gpiod_get(dev, map->name, map->direction);
if (IS_ERR(*gpio)) {
dev_info(dev, "gpio %s error %li\n",
map->name, PTR_ERR(*gpio));
return PTR_ERR(*gpio);
}
}
/* MDM6600 USB start-up mode output lines */
ddata->mode_gpios = devm_gpiod_get_array(dev, "motorola,mode",
GPIOD_OUT_LOW);
if (IS_ERR(ddata->mode_gpios))
return PTR_ERR(ddata->mode_gpios);
if (ddata->mode_gpios->ndescs != PHY_MDM6600_NR_MODE_LINES)
return -EINVAL;
/* MDM6600 status input lines */
ddata->status_gpios = devm_gpiod_get_array(dev, "motorola,status",
GPIOD_IN);
if (IS_ERR(ddata->status_gpios))
return PTR_ERR(ddata->status_gpios);
if (ddata->status_gpios->ndescs != PHY_MDM6600_NR_STATUS_LINES)
return -EINVAL;
/* MDM6600 cmd output lines */
ddata->cmd_gpios = devm_gpiod_get_array(dev, "motorola,cmd",
GPIOD_OUT_LOW);
if (IS_ERR(ddata->cmd_gpios))
return PTR_ERR(ddata->cmd_gpios);
if (ddata->cmd_gpios->ndescs != PHY_MDM6600_NR_CMD_LINES)
return -EINVAL;
return 0;
}
static int panel_dpi_probe_of(struct platform_device *pdev)
{
struct panel_drv_data *ddata = platform_get_drvdata(pdev);
struct device_node *node = pdev->dev.of_node;
struct omap_dss_device *in;
int r;
struct display_timing timing;
struct videomode vm;
struct gpio_desc *gpio;
gpio = devm_gpiod_get(&pdev->dev, "enable");
if (IS_ERR(gpio)) {
if (PTR_ERR(gpio) != -ENOENT)
return PTR_ERR(gpio);
else
gpio = NULL;
} else {
gpiod_direction_output(gpio, 0);
}
ddata->enable_gpio = gpio;
ddata->backlight_gpio = -ENOENT;
r = of_get_display_timing(node, "panel-timing", &timing);
if (r) {
dev_err(&pdev->dev, "failed to get video timing\n");
return r;
}
videomode_from_timing(&timing, &vm);
videomode_to_omap_video_timings(&vm, &ddata->videomode);
in = omapdss_of_find_source_for_first_ep(node);
if (IS_ERR(in)) {
dev_err(&pdev->dev, "failed to find video source\n");
return PTR_ERR(in);
}
ddata->in = in;
return 0;
}
static int at803x_probe(struct phy_device *phydev)
{
struct device *dev = &phydev->dev;
struct at803x_priv *priv;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->gpiod_reset = devm_gpiod_get(dev, "reset");
if (IS_ERR(priv->gpiod_reset))
priv->gpiod_reset = NULL;
else
gpiod_direction_output(priv->gpiod_reset, 1);
phydev->priv = priv;
return 0;
}
int soc_pcmcia_request_gpiods(struct soc_pcmcia_socket *skt)
{
struct device *dev = skt->socket.dev.parent;
struct gpio_desc *desc;
int i;
for (i = 0; i < ARRAY_SIZE(skt->stat); i++) {
if (!skt->stat[i].name)
continue;
desc = devm_gpiod_get(dev, skt->stat[i].name, GPIOD_IN);
if (IS_ERR(desc)) {
dev_err(dev, "Failed to get GPIO for %s: %ld\n",
skt->stat[i].name, PTR_ERR(desc));
return PTR_ERR(desc);
}
skt->stat[i].desc = desc;
}
return 0;
}
static int gpio_beeper_probe(struct platform_device *pdev)
{
struct gpio_beeper *beep;
struct input_dev *input;
int err;
beep = devm_kzalloc(&pdev->dev, sizeof(*beep), GFP_KERNEL);
if (!beep)
return -ENOMEM;
beep->desc = devm_gpiod_get(&pdev->dev, NULL);
if (IS_ERR(beep->desc))
return PTR_ERR(beep->desc);
input = devm_input_allocate_device(&pdev->dev);
if (!input)
return -ENOMEM;
INIT_WORK(&beep->work, gpio_beeper_work);
input->name = pdev->name;
input->id.bustype = BUS_HOST;
input->id.vendor = 0x0001;
input->id.product = 0x0001;
input->id.version = 0x0100;
input->close = gpio_beeper_close;
input->event = gpio_beeper_event;
input_set_capability(input, EV_SND, SND_BELL);
err = gpiod_direction_output(beep->desc, 0);
if (err)
return err;
input_set_drvdata(input, beep);
return input_register_device(input);
}
int adau1977_probe(struct device *dev, struct regmap *regmap,
enum adau1977_type type, void (*switch_mode)(struct device *dev))
{
unsigned int power_off_mask;
struct adau1977 *adau1977;
int ret;
if (IS_ERR(regmap))
return PTR_ERR(regmap);
adau1977 = devm_kzalloc(dev, sizeof(*adau1977), GFP_KERNEL);
if (adau1977 == NULL)
return -ENOMEM;
adau1977->dev = dev;
adau1977->type = type;
adau1977->regmap = regmap;
adau1977->switch_mode = switch_mode;
adau1977->max_master_fs = 192000;
adau1977->constraints.list = adau1977_rates;
adau1977->constraints.count = ARRAY_SIZE(adau1977_rates);
adau1977->avdd_reg = devm_regulator_get(dev, "AVDD");
if (IS_ERR(adau1977->avdd_reg))
return PTR_ERR(adau1977->avdd_reg);
adau1977->dvdd_reg = devm_regulator_get_optional(dev, "DVDD");
if (IS_ERR(adau1977->dvdd_reg)) {
if (PTR_ERR(adau1977->dvdd_reg) != -ENODEV)
return PTR_ERR(adau1977->dvdd_reg);
adau1977->dvdd_reg = NULL;
}
adau1977->reset_gpio = devm_gpiod_get(dev, "reset");
if (IS_ERR(adau1977->reset_gpio)) {
ret = PTR_ERR(adau1977->reset_gpio);
if (ret != -ENOENT && ret != -ENOSYS)
return PTR_ERR(adau1977->reset_gpio);
adau1977->reset_gpio = NULL;
}
dev_set_drvdata(dev, adau1977);
if (adau1977->reset_gpio) {
ret = gpiod_direction_output(adau1977->reset_gpio, 0);
if (ret)
return ret;
ndelay(100);
}
ret = adau1977_power_enable(adau1977);
if (ret)
return ret;
if (type == ADAU1977) {
ret = adau1977_setup_micbias(adau1977);
if (ret)
goto err_poweroff;
}
if (adau1977->dvdd_reg)
power_off_mask = ~0;
else
power_off_mask = (unsigned int)~ADAU1977_BLOCK_POWER_SAI_LDO_EN;
ret = regmap_update_bits(adau1977->regmap, ADAU1977_REG_BLOCK_POWER_SAI,
power_off_mask, 0x00);
if (ret)
goto err_poweroff;
ret = adau1977_power_disable(adau1977);
if (ret)
return ret;
return snd_soc_register_codec(dev, &adau1977_codec_driver,
&adau1977_dai, 1);
err_poweroff:
adau1977_power_disable(adau1977);
return ret;
}
static int fdp_nci_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct fdp_i2c_phy *phy;
struct device *dev = &client->dev;
u8 *fw_vsc_cfg;
u8 clock_type;
u32 clock_freq;
int r = 0;
dev_dbg(dev, "%s\n", __func__);
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
nfc_err(dev, "No I2C_FUNC_I2C support\n");
return -ENODEV;
}
/* Checking if we have an irq */
if (client->irq <= 0) {
nfc_err(dev, "IRQ not present\n");
return -ENODEV;
}
phy = devm_kzalloc(dev, sizeof(struct fdp_i2c_phy),
GFP_KERNEL);
if (!phy)
return -ENOMEM;
phy->i2c_dev = client;
phy->next_read_size = FDP_NCI_I2C_MIN_PAYLOAD;
i2c_set_clientdata(client, phy);
r = request_threaded_irq(client->irq, NULL, fdp_nci_i2c_irq_thread_fn,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
FDP_I2C_DRIVER_NAME, phy);
if (r < 0) {
nfc_err(&client->dev, "Unable to register IRQ handler\n");
return r;
}
/* Requesting the power gpio */
phy->power_gpio = devm_gpiod_get(dev, FDP_DP_POWER_GPIO_NAME,
GPIOD_OUT_LOW);
if (IS_ERR(phy->power_gpio)) {
nfc_err(dev, "Power GPIO request failed\n");
return PTR_ERR(phy->power_gpio);
}
/* read device properties to get the clock and production settings */
fdp_nci_i2c_read_device_properties(dev, &clock_type, &clock_freq,
&fw_vsc_cfg);
/* Call the NFC specific probe function */
r = fdp_nci_probe(phy, &i2c_phy_ops, &phy->ndev,
FDP_FRAME_HEADROOM, FDP_FRAME_TAILROOM,
clock_type, clock_freq, fw_vsc_cfg);
if (r < 0) {
nfc_err(dev, "NCI probing error\n");
return r;
}
dev_dbg(dev, "I2C driver loaded\n");
return 0;
}
/**
* pimhyp3_get_gpio_config - Get GPIO config from ACPI/DT
*
* @ts: pimhyp3_ts_data pointer
*/
static int pimhyp3_get_gpio_config(struct pimhyp3_ts_data *ts)
{
int error;
struct device *dev;
struct gpio_desc *gpiod;
u32 sizeX, sizeY, refreshRate;
if (!ts->client)
return -EINVAL;
dev = &ts->client->dev;
/* Get the interrupt GPIO pin description */
gpiod = devm_gpiod_get(dev, PIMHYP3_GPIO_INT_NAME, GPIOD_IN);
if (IS_ERR(gpiod)) {
error = PTR_ERR(gpiod);
if (error != -EPROBE_DEFER)
dev_dbg(dev, "Failed to get %s GPIO: %d\n",
PIMHYP3_GPIO_INT_NAME, error);
return error;
}
/* Ensure the correct direction is set because this pin is also used to
* program the LCD controller
*/
ts->gpiod_int = gpiod;
gpiod_direction_input(ts->gpiod_int);
/* Get the MOSI GPIO pin description */
gpiod = devm_gpiod_get(dev, PIMHYP3_GPIO_MOSI_NAME, GPIOD_OUT_LOW);
if (IS_ERR(gpiod)) {
error = PTR_ERR(gpiod);
if (error != -EPROBE_DEFER)
dev_dbg(dev, "Failed to get %s GPIO: %d\n",
PIMHYP3_GPIO_MOSI_NAME, error);
return error;
}
ts->gpiod_mosi = gpiod;
/* Get the CS GPIO pin description */
gpiod = devm_gpiod_get(dev, PIMHYP3_GPIO_CS_NAME, GPIOD_OUT_HIGH);
if (IS_ERR(gpiod)) {
error = PTR_ERR(gpiod);
if (error != -EPROBE_DEFER)
dev_dbg(dev, "Failed to get %s GPIO: %d\n",
PIMHYP3_GPIO_CS_NAME, error);
return error;
}
ts->gpiod_cs = gpiod;
ts->id = 0x1001;
ts->version=0x0101;
ts->last_numTouches=0;
ts->max_touch_num=2;
ts->abs_x_max = PIMHYP3_MAX_WIDTH;
ts->abs_y_max = PIMHYP3_MAX_HEIGHT;
ts->use_poll = false;
ts->int_trigger_type = PIMHYP3_INT_TRIGGER;
// Read DT configuration parameters
ts->X2Y = device_property_read_bool(&ts->client->dev,
"touchscreen-x2y");
dev_dbg(&ts->client->dev, "touchscreen-x2y %u", ts->X2Y);
ts->use_poll = device_property_read_bool(&ts->client->dev,
"touchscreen-poll");
dev_dbg(&ts->client->dev, "touchscreen-poll %u", ts->use_poll);
if(device_property_read_u32(&ts->client->dev, "touchscreen-refresh-rate", &refreshRate))
{
dev_dbg(&ts->client->dev, "touchscreen-refresh-rate not found");
ts->requestedRefreshRate = 17;
}
else
{
dev_dbg(&ts->client->dev, "touchscreen-refresh-rate found %u", refreshRate);
ts->requestedRefreshRate = (u8)refreshRate;
}
if(device_property_read_u32(&ts->client->dev, "touchscreen-size-x", &sizeX))
{
dev_dbg(&ts->client->dev, "touchscreen-size-x not found. Using default of %u",ts->abs_x_max);
}
else
{
ts->abs_x_max = (u16)sizeX;
dev_dbg(&ts->client->dev, "touchscreen-size-x found %u", ts->abs_x_max);
}
if(device_property_read_u32(&ts->client->dev, "touchscreen-size-y", &sizeY))
{
dev_dbg(&ts->client->dev, "touchscreen-size-y not found. Using default of %u",ts->abs_y_max);
}
else
{
ts->abs_y_max = (u16)sizeY;
dev_dbg(&ts->client->dev, "touchscreen-size-y found %u", ts->abs_y_max);
}
dev_dbg(&ts->client->dev, "requested size (%u, %u)", ts->abs_x_max, ts->abs_y_max);
ts->swapped_x_y = device_property_read_bool(&ts->client->dev, "touchscreen-swapped-x-y");
dev_dbg(&ts->client->dev, "touchscreen-swapped-x-y %u", ts->swapped_x_y);
ts->inverted_x = device_property_read_bool(&ts->client->dev,
"touchscreen-inverted-x");
dev_dbg(&ts->client->dev, "touchscreen-inverted-x %u", ts->inverted_x);
ts->inverted_y = device_property_read_bool(&ts->client->dev, "touchscreen-inverted-y");
dev_dbg(&ts->client->dev, "touchscreen-inverted-y %u", ts->inverted_y);
return 0;
}
static int hx711_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct hx711_data *hx711_data;
struct iio_dev *indio_dev;
int ret;
int i;
indio_dev = devm_iio_device_alloc(dev, sizeof(struct hx711_data));
if (!indio_dev) {
dev_err(dev, "failed to allocate IIO device\n");
return -ENOMEM;
}
hx711_data = iio_priv(indio_dev);
hx711_data->dev = dev;
mutex_init(&hx711_data->lock);
/*
* PD_SCK stands for power down and serial clock input of HX711
* in the driver it is an output
*/
hx711_data->gpiod_pd_sck = devm_gpiod_get(dev, "sck", GPIOD_OUT_LOW);
if (IS_ERR(hx711_data->gpiod_pd_sck)) {
dev_err(dev, "failed to get sck-gpiod: err=%ld\n",
PTR_ERR(hx711_data->gpiod_pd_sck));
return PTR_ERR(hx711_data->gpiod_pd_sck);
}
/*
* DOUT stands for serial data output of HX711
* for the driver it is an input
*/
hx711_data->gpiod_dout = devm_gpiod_get(dev, "dout", GPIOD_IN);
if (IS_ERR(hx711_data->gpiod_dout)) {
dev_err(dev, "failed to get dout-gpiod: err=%ld\n",
PTR_ERR(hx711_data->gpiod_dout));
return PTR_ERR(hx711_data->gpiod_dout);
}
hx711_data->reg_avdd = devm_regulator_get(dev, "avdd");
if (IS_ERR(hx711_data->reg_avdd))
return PTR_ERR(hx711_data->reg_avdd);
ret = regulator_enable(hx711_data->reg_avdd);
if (ret < 0)
return ret;
/*
* with
* full scale differential input range: AVDD / GAIN
* full scale output data: 2^24
* we can say:
* AVDD / GAIN = 2^24
* therefore:
* 1 LSB = AVDD / GAIN / 2^24
* AVDD is in uV, but we need 10^-9 mV
* approximately to fit into a 32 bit number:
* 1 LSB = (AVDD * 100) / GAIN / 1678 [10^-9 mV]
*/
ret = regulator_get_voltage(hx711_data->reg_avdd);
if (ret < 0) {
regulator_disable(hx711_data->reg_avdd);
return ret;
}
/* we need 10^-9 mV */
ret *= 100;
for (i = 0; i < HX711_GAIN_MAX; i++)
hx711_gain_to_scale[i].scale =
ret / hx711_gain_to_scale[i].gain / 1678;
hx711_data->gain_set = 128;
hx711_data->gain_chan_a = 128;
platform_set_drvdata(pdev, indio_dev);
indio_dev->name = "hx711";
indio_dev->dev.parent = &pdev->dev;
indio_dev->info = &hx711_iio_info;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->channels = hx711_chan_spec;
indio_dev->num_channels = ARRAY_SIZE(hx711_chan_spec);
ret = iio_device_register(indio_dev);
if (ret < 0) {
dev_err(dev, "Couldn't register the device\n");
regulator_disable(hx711_data->reg_avdd);
}
return ret;
}
static int s6e8aa0_probe(struct mipi_dsi_device *dsi)
{
struct device *dev = &dsi->dev;
struct s6e8aa0 *ctx;
int ret;
ctx = devm_kzalloc(dev, sizeof(struct s6e8aa0), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
mipi_dsi_set_drvdata(dsi, ctx);
ctx->dev = dev;
dsi->lanes = 4;
dsi->format = MIPI_DSI_FMT_RGB888;
dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST
| MIPI_DSI_MODE_VIDEO_HFP | MIPI_DSI_MODE_VIDEO_HBP
| MIPI_DSI_MODE_VIDEO_HSA | MIPI_DSI_MODE_EOT_PACKET
| MIPI_DSI_MODE_VSYNC_FLUSH | MIPI_DSI_MODE_VIDEO_AUTO_VERT;
ret = s6e8aa0_parse_dt(ctx);
if (ret < 0)
return ret;
ctx->supplies[0].supply = "vdd3";
ctx->supplies[1].supply = "vci";
ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
ctx->supplies);
if (ret < 0) {
dev_err(dev, "failed to get regulators: %d\n", ret);
return ret;
}
ctx->reset_gpio = devm_gpiod_get(dev, "reset");
if (IS_ERR(ctx->reset_gpio)) {
dev_err(dev, "cannot get reset-gpios %ld\n",
PTR_ERR(ctx->reset_gpio));
return PTR_ERR(ctx->reset_gpio);
}
ret = gpiod_direction_output(ctx->reset_gpio, 1);
if (ret < 0) {
dev_err(dev, "cannot configure reset-gpios %d\n", ret);
return ret;
}
ctx->brightness = GAMMA_LEVEL_NUM - 1;
drm_panel_init(&ctx->panel);
ctx->panel.dev = dev;
ctx->panel.funcs = &s6e8aa0_drm_funcs;
ret = drm_panel_add(&ctx->panel);
if (ret < 0)
return ret;
ret = mipi_dsi_attach(dsi);
if (ret < 0)
drm_panel_remove(&ctx->panel);
return ret;
}
static int cs35l32_i2c_probe(struct i2c_client *i2c_client,
const struct i2c_device_id *id)
{
struct cs35l32_private *cs35l32;
struct cs35l32_platform_data *pdata =
dev_get_platdata(&i2c_client->dev);
int ret, i;
unsigned int devid = 0;
unsigned int reg;
cs35l32 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs35l32_private),
GFP_KERNEL);
if (!cs35l32) {
dev_err(&i2c_client->dev, "could not allocate codec\n");
return -ENOMEM;
}
i2c_set_clientdata(i2c_client, cs35l32);
cs35l32->regmap = devm_regmap_init_i2c(i2c_client, &cs35l32_regmap);
if (IS_ERR(cs35l32->regmap)) {
ret = PTR_ERR(cs35l32->regmap);
dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
return ret;
}
if (pdata) {
cs35l32->pdata = *pdata;
} else {
pdata = devm_kzalloc(&i2c_client->dev,
sizeof(struct cs35l32_platform_data),
GFP_KERNEL);
if (!pdata) {
dev_err(&i2c_client->dev, "could not allocate pdata\n");
return -ENOMEM;
}
if (i2c_client->dev.of_node) {
ret = cs35l32_handle_of_data(i2c_client,
&cs35l32->pdata);
if (ret != 0)
return ret;
}
}
for (i = 0; i < ARRAY_SIZE(cs35l32->supplies); i++)
cs35l32->supplies[i].supply = cs35l32_supply_names[i];
ret = devm_regulator_bulk_get(&i2c_client->dev,
ARRAY_SIZE(cs35l32->supplies),
cs35l32->supplies);
if (ret != 0) {
dev_err(&i2c_client->dev,
"Failed to request supplies: %d\n", ret);
return ret;
}
ret = regulator_bulk_enable(ARRAY_SIZE(cs35l32->supplies),
cs35l32->supplies);
if (ret != 0) {
dev_err(&i2c_client->dev,
"Failed to enable supplies: %d\n", ret);
return ret;
}
/* Reset the Device */
cs35l32->reset_gpio = devm_gpiod_get(&i2c_client->dev,
"reset-gpios");
if (IS_ERR(cs35l32->reset_gpio)) {
ret = PTR_ERR(cs35l32->reset_gpio);
if (ret != -ENOENT && ret != -ENOSYS)
return ret;
cs35l32->reset_gpio = NULL;
} else {
ret = gpiod_direction_output(cs35l32->reset_gpio, 0);
if (ret)
return ret;
gpiod_set_value_cansleep(cs35l32->reset_gpio, 1);
}
/* initialize codec */
ret = regmap_read(cs35l32->regmap, CS35L32_DEVID_AB, ®);
devid = (reg & 0xFF) << 12;
ret = regmap_read(cs35l32->regmap, CS35L32_DEVID_CD, ®);
devid |= (reg & 0xFF) << 4;
ret = regmap_read(cs35l32->regmap, CS35L32_DEVID_E, ®);
devid |= (reg & 0xF0) >> 4;
if (devid != CS35L32_CHIP_ID) {
ret = -ENODEV;
dev_err(&i2c_client->dev,
"CS35L32 Device ID (%X). Expected %X\n",
devid, CS35L32_CHIP_ID);
return ret;
}
ret = regmap_read(cs35l32->regmap, CS35L32_REV_ID, ®);
if (ret < 0) {
dev_err(&i2c_client->dev, "Get Revision ID failed\n");
return ret;
}
ret = regmap_register_patch(cs35l32->regmap, cs35l32_monitor_patch,
ARRAY_SIZE(cs35l32_monitor_patch));
if (ret < 0) {
dev_err(&i2c_client->dev, "Failed to apply errata patch\n");
return ret;
}
dev_info(&i2c_client->dev,
"Cirrus Logic CS35L32, Revision: %02X\n", reg & 0xFF);
/* Setup VBOOST Management */
if (cs35l32->pdata.boost_mng)
regmap_update_bits(cs35l32->regmap, CS35L32_AUDIO_LED_MNGR,
CS35L32_BOOST_MASK,
cs35l32->pdata.boost_mng);
/* Setup ADSP Format Config */
if (cs35l32->pdata.sdout_share)
regmap_update_bits(cs35l32->regmap, CS35L32_ADSP_CTL,
CS35L32_ADSP_SHARE_MASK,
cs35l32->pdata.sdout_share << 3);
/* Setup ADSP Data Configuration */
if (cs35l32->pdata.sdout_datacfg)
regmap_update_bits(cs35l32->regmap, CS35L32_ADSP_CTL,
CS35L32_ADSP_DATACFG_MASK,
cs35l32->pdata.sdout_datacfg << 4);
/* Setup Low Battery Recovery */
if (cs35l32->pdata.batt_recov)
regmap_update_bits(cs35l32->regmap, CS35L32_BATT_THRESHOLD,
CS35L32_BATT_REC_MASK,
cs35l32->pdata.batt_recov << 1);
/* Setup Low Battery Threshold */
if (cs35l32->pdata.batt_thresh)
regmap_update_bits(cs35l32->regmap, CS35L32_BATT_THRESHOLD,
CS35L32_BATT_THRESH_MASK,
cs35l32->pdata.batt_thresh << 4);
/* Power down the AMP */
regmap_update_bits(cs35l32->regmap, CS35L32_PWRCTL1, CS35L32_PDN_AMP,
CS35L32_PDN_AMP);
/* Clear MCLK Error Bit since we don't have the clock yet */
ret = regmap_read(cs35l32->regmap, CS35L32_INT_STATUS_1, ®);
ret = snd_soc_register_codec(&i2c_client->dev,
&soc_codec_dev_cs35l32, cs35l32_dai,
ARRAY_SIZE(cs35l32_dai));
if (ret < 0)
goto err_disable;
return 0;
err_disable:
regulator_bulk_disable(ARRAY_SIZE(cs35l32->supplies),
cs35l32->supplies);
return ret;
}
static int rx51_soc_probe(struct platform_device *pdev)
{
struct rx51_audio_pdata *pdata;
struct device_node *np = pdev->dev.of_node;
struct snd_soc_card *card = &rx51_sound_card;
int err;
if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900"))
return -ENODEV;
card->dev = &pdev->dev;
if (np) {
struct device_node *dai_node;
dai_node = of_parse_phandle(np, "nokia,cpu-dai", 0);
if (!dai_node) {
dev_err(&pdev->dev, "McBSP node is not provided\n");
return -EINVAL;
}
rx51_dai[0].cpu_dai_name = NULL;
rx51_dai[0].platform_name = NULL;
rx51_dai[0].cpu_of_node = dai_node;
rx51_dai[0].platform_of_node = dai_node;
dai_node = of_parse_phandle(np, "nokia,audio-codec", 0);
if (!dai_node) {
dev_err(&pdev->dev, "Codec node is not provided\n");
return -EINVAL;
}
rx51_dai[0].codec_name = NULL;
rx51_dai[0].codec_of_node = dai_node;
dai_node = of_parse_phandle(np, "nokia,audio-codec", 1);
if (!dai_node) {
dev_err(&pdev->dev, "Auxiliary Codec node is not provided\n");
return -EINVAL;
}
rx51_aux_dev[0].codec_name = NULL;
rx51_aux_dev[0].codec_of_node = dai_node;
rx51_codec_conf[0].dev_name = NULL;
rx51_codec_conf[0].of_node = dai_node;
dai_node = of_parse_phandle(np, "nokia,headphone-amplifier", 0);
if (!dai_node) {
dev_err(&pdev->dev, "Headphone amplifier node is not provided\n");
return -EINVAL;
}
/* TODO: tpa6130a2a driver supports only a single instance, so
* this driver ignores the headphone-amplifier node for now.
* It's already mandatory in the DT binding to be future proof.
*/
}
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (pdata == NULL) {
dev_err(card->dev, "failed to create private data\n");
return -ENOMEM;
}
snd_soc_card_set_drvdata(card, pdata);
pdata->tvout_selection_gpio = devm_gpiod_get(card->dev,
"tvout-selection",
GPIOD_OUT_LOW);
if (IS_ERR(pdata->tvout_selection_gpio)) {
dev_err(card->dev, "could not get tvout selection gpio\n");
return PTR_ERR(pdata->tvout_selection_gpio);
}
pdata->jack_detection_gpio = devm_gpiod_get(card->dev,
"jack-detection",
GPIOD_ASIS);
if (IS_ERR(pdata->jack_detection_gpio)) {
dev_err(card->dev, "could not get jack detection gpio\n");
return PTR_ERR(pdata->jack_detection_gpio);
}
pdata->eci_sw_gpio = devm_gpiod_get(card->dev, "eci-switch",
GPIOD_OUT_HIGH);
if (IS_ERR(pdata->eci_sw_gpio)) {
dev_err(card->dev, "could not get eci switch gpio\n");
return PTR_ERR(pdata->eci_sw_gpio);
}
pdata->speaker_amp_gpio = devm_gpiod_get(card->dev,
"speaker-amplifier",
GPIOD_OUT_LOW);
if (IS_ERR(pdata->speaker_amp_gpio)) {
dev_err(card->dev, "could not get speaker enable gpio\n");
return PTR_ERR(pdata->speaker_amp_gpio);
}
err = devm_snd_soc_register_card(card->dev, card);
if (err) {
dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", err);
return err;
}
return 0;
}
static int s6e3ha2_probe(struct mipi_dsi_device *dsi)
{
struct device *dev = &dsi->dev;
struct s6e3ha2 *ctx;
int ret;
ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
mipi_dsi_set_drvdata(dsi, ctx);
ctx->dev = dev;
ctx->desc = of_device_get_match_data(dev);
dsi->lanes = 4;
dsi->format = MIPI_DSI_FMT_RGB888;
dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS;
ctx->supplies[0].supply = "vdd3";
ctx->supplies[1].supply = "vci";
ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
ctx->supplies);
if (ret < 0) {
dev_err(dev, "failed to get regulators: %d\n", ret);
return ret;
}
ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(ctx->reset_gpio)) {
dev_err(dev, "cannot get reset-gpios %ld\n",
PTR_ERR(ctx->reset_gpio));
return PTR_ERR(ctx->reset_gpio);
}
ctx->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
if (IS_ERR(ctx->enable_gpio)) {
dev_err(dev, "cannot get enable-gpios %ld\n",
PTR_ERR(ctx->enable_gpio));
return PTR_ERR(ctx->enable_gpio);
}
ctx->bl_dev = backlight_device_register("s6e3ha2", dev, ctx,
&s6e3ha2_bl_ops, NULL);
if (IS_ERR(ctx->bl_dev)) {
dev_err(dev, "failed to register backlight device\n");
return PTR_ERR(ctx->bl_dev);
}
ctx->bl_dev->props.max_brightness = S6E3HA2_MAX_BRIGHTNESS;
ctx->bl_dev->props.brightness = S6E3HA2_DEFAULT_BRIGHTNESS;
ctx->bl_dev->props.power = FB_BLANK_POWERDOWN;
drm_panel_init(&ctx->panel);
ctx->panel.dev = dev;
ctx->panel.funcs = &s6e3ha2_drm_funcs;
ret = drm_panel_add(&ctx->panel);
if (ret < 0)
goto unregister_backlight;
ret = mipi_dsi_attach(dsi);
if (ret < 0)
goto remove_panel;
return ret;
remove_panel:
drm_panel_remove(&ctx->panel);
unregister_backlight:
backlight_device_unregister(ctx->bl_dev);
return ret;
}
static int arche_platform_probe(struct platform_device *pdev)
{
struct arche_platform_drvdata *arche_pdata;
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
int ret;
unsigned int flags;
arche_pdata = devm_kzalloc(&pdev->dev, sizeof(*arche_pdata),
GFP_KERNEL);
if (!arche_pdata)
return -ENOMEM;
/* setup svc reset gpio */
arche_pdata->is_reset_act_hi = of_property_read_bool(np,
"svc,reset-active-high");
if (arche_pdata->is_reset_act_hi)
flags = GPIOD_OUT_HIGH;
else
flags = GPIOD_OUT_LOW;
arche_pdata->svc_reset = devm_gpiod_get(dev, "svc,reset", flags);
if (IS_ERR(arche_pdata->svc_reset)) {
ret = PTR_ERR(arche_pdata->svc_reset);
dev_err(dev, "failed to request svc-reset GPIO: %d\n", ret);
return ret;
}
arche_platform_set_state(arche_pdata, ARCHE_PLATFORM_STATE_OFF);
arche_pdata->svc_sysboot = devm_gpiod_get(dev, "svc,sysboot",
GPIOD_OUT_LOW);
if (IS_ERR(arche_pdata->svc_sysboot)) {
ret = PTR_ERR(arche_pdata->svc_sysboot);
dev_err(dev, "failed to request sysboot0 GPIO: %d\n", ret);
return ret;
}
/* setup the clock request gpio first */
arche_pdata->svc_refclk_req = devm_gpiod_get(dev, "svc,refclk-req",
GPIOD_IN);
if (IS_ERR(arche_pdata->svc_refclk_req)) {
ret = PTR_ERR(arche_pdata->svc_refclk_req);
dev_err(dev, "failed to request svc-clk-req GPIO: %d\n", ret);
return ret;
}
/* setup refclk2 to follow the pin */
arche_pdata->svc_ref_clk = devm_clk_get(dev, "svc_ref_clk");
if (IS_ERR(arche_pdata->svc_ref_clk)) {
ret = PTR_ERR(arche_pdata->svc_ref_clk);
dev_err(dev, "failed to get svc_ref_clk: %d\n", ret);
return ret;
}
platform_set_drvdata(pdev, arche_pdata);
arche_pdata->num_apbs = of_get_child_count(np);
dev_dbg(dev, "Number of APB's available - %d\n", arche_pdata->num_apbs);
arche_pdata->wake_detect = devm_gpiod_get(dev, "svc,wake-detect",
GPIOD_IN);
if (IS_ERR(arche_pdata->wake_detect)) {
ret = PTR_ERR(arche_pdata->wake_detect);
dev_err(dev, "Failed requesting wake_detect GPIO: %d\n", ret);
return ret;
}
arche_platform_set_wake_detect_state(arche_pdata, WD_STATE_IDLE);
arche_pdata->dev = &pdev->dev;
spin_lock_init(&arche_pdata->wake_lock);
mutex_init(&arche_pdata->platform_state_mutex);
arche_pdata->wake_detect_irq =
gpiod_to_irq(arche_pdata->wake_detect);
ret = devm_request_threaded_irq(dev, arche_pdata->wake_detect_irq,
arche_platform_wd_irq,
arche_platform_wd_irq_thread,
IRQF_TRIGGER_FALLING |
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
dev_name(dev), arche_pdata);
if (ret) {
dev_err(dev, "failed to request wake detect IRQ %d\n", ret);
return ret;
}
disable_irq(arche_pdata->wake_detect_irq);
ret = device_create_file(dev, &dev_attr_state);
if (ret) {
dev_err(dev, "failed to create state file in sysfs\n");
return ret;
}
ret = of_platform_populate(np, NULL, NULL, dev);
if (ret) {
dev_err(dev, "failed to populate child nodes %d\n", ret);
goto err_device_remove;
}
arche_pdata->pm_notifier.notifier_call = arche_platform_pm_notifier;
ret = register_pm_notifier(&arche_pdata->pm_notifier);
if (ret) {
dev_err(dev, "failed to register pm notifier %d\n", ret);
goto err_device_remove;
}
/* Explicitly power off if requested */
if (!of_property_read_bool(pdev->dev.of_node, "arche,init-off")) {
mutex_lock(&arche_pdata->platform_state_mutex);
ret = arche_platform_coldboot_seq(arche_pdata);
if (ret) {
dev_err(dev, "Failed to cold boot svc %d\n", ret);
goto err_coldboot;
}
arche_platform_wd_irq_en(arche_pdata);
mutex_unlock(&arche_pdata->platform_state_mutex);
}
dev_info(dev, "Device registered successfully\n");
return 0;
err_coldboot:
mutex_unlock(&arche_pdata->platform_state_mutex);
err_device_remove:
device_remove_file(&pdev->dev, &dev_attr_state);
return ret;
}