static int exynos_pmu_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct resource *res;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
pmu_base_addr = devm_ioremap_resource(dev, res);
if (IS_ERR(pmu_base_addr))
return PTR_ERR(pmu_base_addr);
pmu_context = devm_kzalloc(&pdev->dev,
sizeof(struct exynos_pmu_context),
GFP_KERNEL);
if (!pmu_context)
return -ENOMEM;
pmu_context->dev = dev;
pmu_context->pmu_data = of_device_get_match_data(dev);
if (pmu_context->pmu_data && pmu_context->pmu_data->pmu_init)
pmu_context->pmu_data->pmu_init();
platform_set_drvdata(pdev, pmu_context);
if (devm_of_platform_populate(dev))
dev_err(dev, "Error populating children, reboot and poweroff might not work properly\n");
dev_dbg(dev, "Exynos PMU Driver probe done\n");
return 0;
}
static int clk_mt2701_aud_probe(struct platform_device *pdev)
{
struct clk_onecell_data *clk_data;
struct device_node *node = pdev->dev.of_node;
int r;
clk_data = mtk_alloc_clk_data(CLK_AUD_NR);
mtk_clk_register_gates(node, audio_clks, ARRAY_SIZE(audio_clks),
clk_data);
r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
if (r) {
dev_err(&pdev->dev,
"could not register clock provider: %s: %d\n",
pdev->name, r);
goto err_clk_provider;
}
r = devm_of_platform_populate(&pdev->dev);
if (r)
goto err_plat_populate;
return 0;
err_plat_populate:
of_clk_del_provider(node);
err_clk_provider:
return r;
}
static int stm32_lptimer_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct stm32_lptimer *ddata;
struct resource *res;
void __iomem *mmio;
int ret;
ddata = devm_kzalloc(dev, sizeof(*ddata), GFP_KERNEL);
if (!ddata)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
mmio = devm_ioremap_resource(dev, res);
if (IS_ERR(mmio))
return PTR_ERR(mmio);
ddata->regmap = devm_regmap_init_mmio_clk(dev, "mux", mmio,
&stm32_lptimer_regmap_cfg);
if (IS_ERR(ddata->regmap))
return PTR_ERR(ddata->regmap);
ddata->clk = devm_clk_get(dev, NULL);
if (IS_ERR(ddata->clk))
return PTR_ERR(ddata->clk);
ret = stm32_lptimer_detect_encoder(ddata);
if (ret)
return ret;
platform_set_drvdata(pdev, ddata);
return devm_of_platform_populate(&pdev->dev);
}
static int pmic_spmi_probe(struct spmi_device *sdev)
{
struct regmap *regmap;
regmap = devm_regmap_init_spmi_ext(sdev, &spmi_regmap_config);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
/* Only the first slave id for a PMIC contains this information */
if (sdev->usid % 2 == 0)
pmic_spmi_show_revid(regmap, &sdev->dev);
return devm_of_platform_populate(&sdev->dev);
}
static int cpcap_probe(struct spi_device *spi)
{
const struct of_device_id *match;
struct cpcap_ddata *cpcap;
int ret;
match = of_match_device(of_match_ptr(cpcap_of_match), &spi->dev);
if (!match)
return -ENODEV;
cpcap = devm_kzalloc(&spi->dev, sizeof(*cpcap), GFP_KERNEL);
if (!cpcap)
return -ENOMEM;
cpcap->spi = spi;
spi_set_drvdata(spi, cpcap);
spi->bits_per_word = 16;
spi->mode = SPI_MODE_0 | SPI_CS_HIGH;
ret = spi_setup(spi);
if (ret)
return ret;
cpcap->regmap_conf = &cpcap_regmap_config;
cpcap->regmap = devm_regmap_init_spi(spi, &cpcap_regmap_config);
if (IS_ERR(cpcap->regmap)) {
ret = PTR_ERR(cpcap->regmap);
dev_err(&cpcap->spi->dev, "Failed to initialize regmap: %d\n",
ret);
return ret;
}
ret = cpcap_check_revision(cpcap);
if (ret) {
dev_err(&cpcap->spi->dev, "Failed to detect CPCAP: %i\n", ret);
return ret;
}
ret = cpcap_init_irq(cpcap);
if (ret)
return ret;
return devm_of_platform_populate(&cpcap->spi->dev);
}
static int stm32_sai_probe(struct platform_device *pdev)
{
struct stm32_sai_data *sai;
struct reset_control *rst;
struct resource *res;
const struct of_device_id *of_id;
sai = devm_kzalloc(&pdev->dev, sizeof(*sai), GFP_KERNEL);
if (!sai)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
sai->base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(sai->base))
return PTR_ERR(sai->base);
of_id = of_match_device(stm32_sai_ids, &pdev->dev);
if (of_id)
sai->conf = (struct stm32_sai_conf *)of_id->data;
else
return -EINVAL;
if (!STM_SAI_IS_F4(sai)) {
sai->pclk = devm_clk_get(&pdev->dev, "pclk");
if (IS_ERR(sai->pclk)) {
dev_err(&pdev->dev, "missing bus clock pclk\n");
return PTR_ERR(sai->pclk);
}
}
sai->clk_x8k = devm_clk_get(&pdev->dev, "x8k");
if (IS_ERR(sai->clk_x8k)) {
dev_err(&pdev->dev, "missing x8k parent clock\n");
return PTR_ERR(sai->clk_x8k);
}
sai->clk_x11k = devm_clk_get(&pdev->dev, "x11k");
if (IS_ERR(sai->clk_x11k)) {
dev_err(&pdev->dev, "missing x11k parent clock\n");
return PTR_ERR(sai->clk_x11k);
}
/* init irqs */
sai->irq = platform_get_irq(pdev, 0);
if (sai->irq < 0) {
dev_err(&pdev->dev, "no irq for node %s\n", pdev->name);
return sai->irq;
}
/* reset */
rst = devm_reset_control_get_exclusive(&pdev->dev, NULL);
if (!IS_ERR(rst)) {
reset_control_assert(rst);
udelay(2);
reset_control_deassert(rst);
}
sai->pdev = pdev;
sai->set_sync = &stm32_sai_set_sync;
platform_set_drvdata(pdev, sai);
return devm_of_platform_populate(&pdev->dev);
}
int cros_ec_register(struct cros_ec_device *ec_dev)
{
struct device *dev = ec_dev->dev;
int err = 0;
BLOCKING_INIT_NOTIFIER_HEAD(&ec_dev->event_notifier);
ec_dev->max_request = sizeof(struct ec_params_hello);
ec_dev->max_response = sizeof(struct ec_response_get_protocol_info);
ec_dev->max_passthru = 0;
ec_dev->din = devm_kzalloc(dev, ec_dev->din_size, GFP_KERNEL);
if (!ec_dev->din)
return -ENOMEM;
ec_dev->dout = devm_kzalloc(dev, ec_dev->dout_size, GFP_KERNEL);
if (!ec_dev->dout)
return -ENOMEM;
mutex_init(&ec_dev->lock);
err = cros_ec_query_all(ec_dev);
if (err) {
dev_err(dev, "Cannot identify the EC: error %d\n", err);
return err;
}
if (ec_dev->irq) {
err = devm_request_threaded_irq(dev, ec_dev->irq, NULL,
ec_irq_thread, IRQF_TRIGGER_LOW | IRQF_ONESHOT,
"chromeos-ec", ec_dev);
if (err) {
dev_err(dev, "Failed to request IRQ %d: %d",
ec_dev->irq, err);
return err;
}
}
err = mfd_add_devices(ec_dev->dev, PLATFORM_DEVID_AUTO, &ec_cell, 1,
NULL, ec_dev->irq, NULL);
if (err) {
dev_err(dev,
"Failed to register Embedded Controller subdevice %d\n",
err);
return err;
}
if (ec_dev->max_passthru) {
/*
* Register a PD device as well on top of this device.
* We make the following assumptions:
* - behind an EC, we have a pd
* - only one device added.
* - the EC is responsive at init time (it is not true for a
* sensor hub.
*/
err = mfd_add_devices(ec_dev->dev, PLATFORM_DEVID_AUTO,
&ec_pd_cell, 1, NULL, ec_dev->irq, NULL);
if (err) {
dev_err(dev,
"Failed to register Power Delivery subdevice %d\n",
err);
return err;
}
}
if (IS_ENABLED(CONFIG_OF) && dev->of_node) {
err = devm_of_platform_populate(dev);
if (err) {
mfd_remove_devices(dev);
dev_err(dev, "Failed to register sub-devices\n");
return err;
}
}
/*
* Clear sleep event - this will fail harmlessly on platforms that
* don't implement the sleep event host command.
*/
err = cros_ec_sleep_event(ec_dev, 0);
if (err < 0)
dev_dbg(ec_dev->dev, "Error %d clearing sleep event to ec",
err);
dev_info(dev, "Chrome EC device registered\n");
return 0;
}
