static int inv_mpu_process_acpi_config(struct i2c_client *client,
unsigned short *primary_addr,
unsigned short *secondary_addr)
{
const struct acpi_device_id *id;
struct acpi_device *adev;
u32 i2c_addr = 0;
LIST_HEAD(resources);
int ret;
id = acpi_match_device(client->dev.driver->acpi_match_table,
&client->dev);
if (!id)
return -ENODEV;
adev = ACPI_COMPANION(&client->dev);
if (!adev)
return -ENODEV;
ret = acpi_dev_get_resources(adev, &resources,
acpi_i2c_check_resource, &i2c_addr);
if (ret < 0)
return ret;
acpi_dev_free_resource_list(&resources);
*primary_addr = i2c_addr & 0x0000ffff;
*secondary_addr = (i2c_addr & 0xffff0000) >> 16;
return 0;
}
static int dw_i2c_acpi_configure(struct platform_device *pdev)
{
struct dw_i2c_dev *dev = platform_get_drvdata(pdev);
const struct acpi_device_id *id;
dev->adapter.nr = -1;
dev->tx_fifo_depth = 32;
dev->rx_fifo_depth = 32;
/*
* Try to get SDA hold time and *CNT values from an ACPI method if
* it exists for both supported speed modes.
*/
dw_i2c_acpi_params(pdev, "SSCN", &dev->ss_hcnt, &dev->ss_lcnt, NULL);
dw_i2c_acpi_params(pdev, "FMCN", &dev->fs_hcnt, &dev->fs_lcnt,
&dev->sda_hold_time);
/*
* Provide a way for Designware I2C host controllers that are not
* based on Intel LPSS to specify their input clock frequency via
* id->driver_data.
*/
id = acpi_match_device(pdev->dev.driver->acpi_match_table, &pdev->dev);
if (id && id->driver_data)
clk_register_fixed_rate(&pdev->dev, dev_name(&pdev->dev), NULL,
CLK_IS_ROOT, id->driver_data);
return 0;
}
static int pwm_lpss_probe_platform(struct platform_device *pdev)
{
const struct pwm_lpss_boardinfo *info;
const struct acpi_device_id *id;
struct pwm_lpss_chip *lpwm;
struct resource *r;
id = acpi_match_device(pdev->dev.driver->acpi_match_table, &pdev->dev);
if (!id)
return -ENODEV;
info = (const struct pwm_lpss_boardinfo *)id->driver_data;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
lpwm = pwm_lpss_probe(&pdev->dev, r, info);
if (IS_ERR(lpwm))
return PTR_ERR(lpwm);
platform_set_drvdata(pdev, lpwm);
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
return 0;
}
static int dw8250_probe_acpi(struct uart_8250_port *up)
{
const struct acpi_device_id *id;
struct uart_port *p = &up->port;
id = acpi_match_device(p->dev->driver->acpi_match_table, p->dev);
if (!id)
return -ENODEV;
p->iotype = UPIO_MEM32;
p->serial_in = dw8250_serial_in32;
p->serial_out = dw8250_serial_out32;
p->regshift = 2;
if (!p->uartclk)
p->uartclk = (unsigned int)id->driver_data;
up->dma = devm_kzalloc(p->dev, sizeof(*up->dma), GFP_KERNEL);
if (!up->dma)
return -ENOMEM;
up->dma->rxconf.src_maxburst = p->fifosize / 4;
up->dma->txconf.dst_maxburst = p->fifosize / 4;
return 0;
}
static int inv_mpu_probe(struct spi_device *spi)
{
struct regmap *regmap;
const struct spi_device_id *spi_id;
const struct acpi_device_id *acpi_id;
const char *name = NULL;
enum inv_devices chip_type;
if ((spi_id = spi_get_device_id(spi))) {
chip_type = (enum inv_devices)spi_id->driver_data;
name = spi_id->name;
} else if ((acpi_id = acpi_match_device(spi->dev.driver->acpi_match_table, &spi->dev))) {
chip_type = (enum inv_devices)acpi_id->driver_data;
} else {
return -ENODEV;
}
regmap = devm_regmap_init_spi(spi, &inv_mpu_regmap_config);
if (IS_ERR(regmap)) {
dev_err(&spi->dev, "Failed to register spi regmap %d\n",
(int)PTR_ERR(regmap));
return PTR_ERR(regmap);
}
return inv_mpu_core_probe(regmap, spi->irq, name,
inv_mpu_i2c_disable, chip_type);
}
static void dw_i2c_acpi_unconfigure(struct platform_device *pdev)
{
struct dw_i2c_dev *dev = platform_get_drvdata(pdev);
const struct acpi_device_id *id;
id = acpi_match_device(pdev->dev.driver->acpi_match_table, &pdev->dev);
if (id && id->driver_data)
clk_unregister(dev->clk);
}
static int intel_soc_pmic_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *i2c_id)
{
struct device *dev = &i2c->dev;
const struct acpi_device_id *id;
struct intel_soc_pmic_config *config;
struct intel_soc_pmic *pmic;
int ret;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id || !id->driver_data)
return -ENODEV;
config = (struct intel_soc_pmic_config *)id->driver_data;
pmic = devm_kzalloc(dev, sizeof(*pmic), GFP_KERNEL);
if (!pmic)
return -ENOMEM;
dev_set_drvdata(dev, pmic);
pmic->regmap = devm_regmap_init_i2c(i2c, config->regmap_config);
if (IS_ERR(pmic->regmap))
return PTR_ERR(pmic->regmap);
pmic->irq = i2c->irq;
ret = regmap_add_irq_chip(pmic->regmap, pmic->irq,
config->irq_flags | IRQF_ONESHOT,
0, config->irq_chip,
&pmic->irq_chip_data);
if (ret)
return ret;
ret = enable_irq_wake(pmic->irq);
if (ret)
dev_warn(dev, "Can't enable IRQ as wake source: %d\n", ret);
/* Add lookup table binding for Panel Control to the GPIO Chip */
gpiod_add_lookup_table(&panel_gpio_table);
/* Add lookup table for crc-pwm */
pwm_add_table(crc_pwm_lookup, ARRAY_SIZE(crc_pwm_lookup));
ret = mfd_add_devices(dev, -1, config->cell_dev,
config->n_cell_devs, NULL, 0,
regmap_irq_get_domain(pmic->irq_chip_data));
if (ret)
goto err_del_irq_chip;
return 0;
err_del_irq_chip:
regmap_del_irq_chip(pmic->irq, pmic->irq_chip_data);
return ret;
}
static enum da280_chipset da280_match_acpi_device(struct device *dev)
{
const struct acpi_device_id *id;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return -EINVAL;
return (enum da280_chipset) id->driver_data;
}
static int spt_pinctrl_probe(struct platform_device *pdev)
{
const struct intel_pinctrl_soc_data *soc_data;
const struct acpi_device_id *id;
id = acpi_match_device(spt_pinctrl_acpi_match, &pdev->dev);
if (!id || !id->driver_data)
return -ENODEV;
soc_data = (const struct intel_pinctrl_soc_data *)id->driver_data;
return intel_pinctrl_probe(pdev, soc_data);
}
static const char *inv_mpu_match_acpi_device(struct device *dev, int *chip_id)
{
const struct acpi_device_id *id;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return NULL;
*chip_id = (int)id->driver_data;
return dev_name(dev);
}
static char *ak8975_match_acpi_device(struct device *dev,
enum asahi_compass_chipset *chipset)
{
const struct acpi_device_id *id;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return NULL;
*chipset = (int)id->driver_data;
return (char *)dev_name(dev);
}
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 void dw8250_quirks(struct uart_port *p, struct dw8250_data *data)
{
if (p->dev->of_node) {
struct device_node *np = p->dev->of_node;
int id;
/* get index of serial line, if found in DT aliases */
id = of_alias_get_id(np, "serial");
if (id >= 0)
p->line = id;
#ifdef CONFIG_64BIT
if (of_device_is_compatible(np, "cavium,octeon-3860-uart")) {
p->serial_in = dw8250_serial_inq;
p->serial_out = dw8250_serial_outq;
p->flags = UPF_SKIP_TEST | UPF_SHARE_IRQ | UPF_FIXED_TYPE;
p->type = PORT_OCTEON;
data->usr_reg = 0x27;
data->skip_autocfg = true;
}
#endif
if (of_device_is_big_endian(p->dev->of_node)) {
p->iotype = UPIO_MEM32BE;
p->serial_in = dw8250_serial_in32be;
p->serial_out = dw8250_serial_out32be;
}
} else if (has_acpi_companion(p->dev)) {
const struct acpi_device_id *id;
id = acpi_match_device(p->dev->driver->acpi_match_table,
p->dev);
if (id && !strcmp(id->id, "APMC0D08")) {
p->iotype = UPIO_MEM32;
p->regshift = 2;
p->serial_in = dw8250_serial_in32;
data->uart_16550_compatible = true;
}
p->set_termios = dw8250_set_termios;
}
/* Platforms with iDMA */
if (platform_get_resource_byname(to_platform_device(p->dev),
IORESOURCE_MEM, "lpss_priv")) {
p->set_termios = dw8250_set_termios;
data->dma.rx_param = p->dev->parent;
data->dma.tx_param = p->dev->parent;
data->dma.fn = dw8250_idma_filter;
}
}
static int soc_button_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
const struct acpi_device_id *id;
struct soc_button_info *button_info;
struct soc_button_data *priv;
struct platform_device *pd;
int i;
int error;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return -ENODEV;
button_info = (struct soc_button_info *)id->driver_data;
if (gpiod_count(dev, KBUILD_MODNAME) <= 0) {
dev_dbg(dev, "no GPIO attached, ignoring...\n");
return -ENODEV;
}
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
platform_set_drvdata(pdev, priv);
for (i = 0; i < BUTTON_TYPES; i++) {
pd = soc_button_device_create(pdev, button_info, i == 0);
if (IS_ERR(pd)) {
error = PTR_ERR(pd);
if (error != -ENODEV) {
soc_button_remove(pdev);
return error;
}
continue;
}
priv->children[i] = pd;
}
if (!priv->children[0] && !priv->children[1])
return -ENODEV;
return 0;
}
static int axp20x_match_device(struct axp20x_dev *axp20x, struct device *dev)
{
const struct acpi_device_id *acpi_id;
const struct of_device_id *of_id;
if (dev->of_node) {
of_id = of_match_device(axp20x_of_match, dev);
if (!of_id) {
dev_err(dev, "Unable to match OF ID\n");
return -ENODEV;
}
axp20x->variant = (long) of_id->data;
} else {
acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!acpi_id || !acpi_id->driver_data) {
dev_err(dev, "Unable to match ACPI ID and data\n");
return -ENODEV;
}
axp20x->variant = (long) acpi_id->driver_data;
}
switch (axp20x->variant) {
case AXP202_ID:
case AXP209_ID:
axp20x->nr_cells = ARRAY_SIZE(axp20x_cells);
axp20x->cells = axp20x_cells;
axp20x->regmap_cfg = &axp20x_regmap_config;
axp20x->regmap_irq_chip = &axp20x_regmap_irq_chip;
break;
case AXP288_ID:
axp20x->cells = axp288_cells;
axp20x->nr_cells = ARRAY_SIZE(axp288_cells);
axp20x->regmap_cfg = &axp288_regmap_config;
axp20x->regmap_irq_chip = &axp288_regmap_irq_chip;
break;
default:
dev_err(dev, "unsupported AXP20X ID %lu\n", axp20x->variant);
return -EINVAL;
}
dev_info(dev, "AXP20x variant %s found\n",
axp20x_model_names[axp20x->variant]);
return 0;
}
static int bxt_pinctrl_probe(struct platform_device *pdev)
{
const struct intel_pinctrl_soc_data *soc_data = NULL;
const struct intel_pinctrl_soc_data **soc_table;
struct acpi_device *adev;
int i;
adev = ACPI_COMPANION(&pdev->dev);
if (adev) {
const struct acpi_device_id *id;
id = acpi_match_device(bxt_pinctrl_acpi_match, &pdev->dev);
if (!id)
return -ENODEV;
soc_table = (const struct intel_pinctrl_soc_data **)
id->driver_data;
for (i = 0; soc_table[i]; i++) {
if (!strcmp(adev->pnp.unique_id, soc_table[i]->uid)) {
soc_data = soc_table[i];
break;
}
}
} else {
const struct platform_device_id *pid;
pid = platform_get_device_id(pdev);
if (!pid)
return -ENODEV;
soc_table = (const struct intel_pinctrl_soc_data **)
pid->driver_data;
soc_data = soc_table[pdev->id];
}
if (!soc_data)
return -ENODEV;
return intel_pinctrl_probe(pdev, soc_data);
}
static int intel_lpss_acpi_probe(struct platform_device *pdev)
{
struct intel_lpss_platform_info *info;
const struct acpi_device_id *id;
id = acpi_match_device(intel_lpss_acpi_ids, &pdev->dev);
if (!id)
return -ENODEV;
info = devm_kmemdup(&pdev->dev, (void *)id->driver_data, sizeof(*info),
GFP_KERNEL);
if (!info)
return -ENOMEM;
info->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
info->irq = platform_get_irq(pdev, 0);
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
return intel_lpss_probe(&pdev->dev, info);
}
static int silead_ts_set_default_fw_name(struct silead_ts_data *data,
const struct i2c_device_id *id)
{
const struct acpi_device_id *acpi_id;
struct device *dev = &data->client->dev;
int i;
if (ACPI_HANDLE(dev)) {
acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!acpi_id)
return -ENODEV;
snprintf(data->fw_name, sizeof(data->fw_name),
"silead/%s.fw", acpi_id->id);
for (i = 0; i < strlen(data->fw_name); i++)
data->fw_name[i] = tolower(data->fw_name[i]);
} else {
snprintf(data->fw_name, sizeof(data->fw_name),
"silead/%s.fw", id->name);
}
return 0;
}
writel(0, sgmii->base + EMAC_SGMII_PHY_INTERRUPT_MASK);
synchronize_irq(sgmii->irq);
return 0;
}
static int emac_sgmii_acpi_match(struct device *dev, void *data)
{
#ifdef CONFIG_ACPI
static const struct acpi_device_id match_table[] = {
{
.id = "QCOM8071",
},
{}
};
const struct acpi_device_id *id = acpi_match_device(match_table, dev);
emac_sgmii_function *initialize = data;
if (id) {
acpi_handle handle = ACPI_HANDLE(dev);
unsigned long long hrv;
acpi_status status;
status = acpi_evaluate_integer(handle, "_HRV", NULL, &hrv);
if (status) {
if (status == AE_NOT_FOUND)
/* Older versions of the QDF2432 ACPI tables do
* not have an _HRV property.
*/
hrv = 1;
else
static int sst_acpi_probe(struct platform_device *pdev)
{
const struct acpi_device_id *id;
struct device *dev = &pdev->dev;
struct sst_acpi_priv *sst_acpi;
struct sst_pdata *sst_pdata;
struct sst_acpi_mach *mach;
struct sst_acpi_desc *desc;
struct resource *mmio;
int ret = 0;
sst_acpi = devm_kzalloc(dev, sizeof(*sst_acpi), GFP_KERNEL);
if (sst_acpi == NULL)
return -ENOMEM;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return -ENODEV;
desc = (struct sst_acpi_desc *)id->driver_data;
mach = sst_acpi_find_machine(desc->machines);
if (mach == NULL) {
dev_err(dev, "No matching ASoC machine driver found\n");
return -ENODEV;
}
sst_pdata = &sst_acpi->sst_pdata;
sst_pdata->id = desc->sst_id;
sst_acpi->desc = desc;
sst_acpi->mach = mach;
if (desc->resindex_dma_base >= 0) {
sst_pdata->dma_engine = desc->dma_engine;
sst_pdata->dma_base = desc->resindex_dma_base;
sst_pdata->dma_size = desc->dma_size;
}
if (desc->irqindex_host_ipc >= 0)
sst_pdata->irq = platform_get_irq(pdev, desc->irqindex_host_ipc);
if (desc->resindex_lpe_base >= 0) {
mmio = platform_get_resource(pdev, IORESOURCE_MEM,
desc->resindex_lpe_base);
if (mmio) {
sst_pdata->lpe_base = mmio->start;
sst_pdata->lpe_size = resource_size(mmio);
}
}
if (desc->resindex_pcicfg_base >= 0) {
mmio = platform_get_resource(pdev, IORESOURCE_MEM,
desc->resindex_pcicfg_base);
if (mmio) {
sst_pdata->pcicfg_base = mmio->start;
sst_pdata->pcicfg_size = resource_size(mmio);
}
}
if (desc->resindex_fw_base >= 0) {
mmio = platform_get_resource(pdev, IORESOURCE_MEM,
desc->resindex_fw_base);
if (mmio) {
sst_pdata->fw_base = mmio->start;
sst_pdata->fw_size = resource_size(mmio);
}
}
platform_set_drvdata(pdev, sst_acpi);
/* register machine driver */
sst_acpi->pdev_mach =
platform_device_register_data(dev, mach->drv_name, -1,
sst_pdata, sizeof(*sst_pdata));
if (IS_ERR(sst_acpi->pdev_mach))
return PTR_ERR(sst_acpi->pdev_mach);
/* continue SST probing after firmware is loaded */
ret = request_firmware_nowait(THIS_MODULE, true, mach->fw_filename,
dev, GFP_KERNEL, pdev, sst_acpi_fw_cb);
if (ret)
platform_device_unregister(sst_acpi->pdev_mach);
return ret;
}
int axp20x_match_device(struct axp20x_dev *axp20x)
{
struct device *dev = axp20x->dev;
const struct acpi_device_id *acpi_id;
const struct of_device_id *of_id;
if (dev->of_node) {
of_id = of_match_device(dev->driver->of_match_table, dev);
if (!of_id) {
dev_err(dev, "Unable to match OF ID\n");
return -ENODEV;
}
axp20x->variant = (long)of_id->data;
} else {
acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!acpi_id || !acpi_id->driver_data) {
dev_err(dev, "Unable to match ACPI ID and data\n");
return -ENODEV;
}
axp20x->variant = (long)acpi_id->driver_data;
}
switch (axp20x->variant) {
case AXP152_ID:
axp20x->nr_cells = ARRAY_SIZE(axp152_cells);
axp20x->cells = axp152_cells;
axp20x->regmap_cfg = &axp152_regmap_config;
axp20x->regmap_irq_chip = &axp152_regmap_irq_chip;
break;
case AXP202_ID:
case AXP209_ID:
axp20x->nr_cells = ARRAY_SIZE(axp20x_cells);
axp20x->cells = axp20x_cells;
axp20x->regmap_cfg = &axp20x_regmap_config;
axp20x->regmap_irq_chip = &axp20x_regmap_irq_chip;
break;
case AXP221_ID:
axp20x->nr_cells = ARRAY_SIZE(axp221_cells);
axp20x->cells = axp221_cells;
axp20x->regmap_cfg = &axp22x_regmap_config;
axp20x->regmap_irq_chip = &axp22x_regmap_irq_chip;
break;
case AXP223_ID:
axp20x->nr_cells = ARRAY_SIZE(axp223_cells);
axp20x->cells = axp223_cells;
axp20x->regmap_cfg = &axp22x_regmap_config;
axp20x->regmap_irq_chip = &axp22x_regmap_irq_chip;
break;
case AXP288_ID:
axp20x->cells = axp288_cells;
axp20x->nr_cells = ARRAY_SIZE(axp288_cells);
axp20x->regmap_cfg = &axp288_regmap_config;
axp20x->regmap_irq_chip = &axp288_regmap_irq_chip;
axp20x->irq_flags = IRQF_TRIGGER_LOW;
break;
case AXP803_ID:
axp20x->nr_cells = ARRAY_SIZE(axp803_cells);
axp20x->cells = axp803_cells;
axp20x->regmap_cfg = &axp288_regmap_config;
axp20x->regmap_irq_chip = &axp803_regmap_irq_chip;
break;
case AXP806_ID:
axp20x->nr_cells = ARRAY_SIZE(axp806_cells);
axp20x->cells = axp806_cells;
axp20x->regmap_cfg = &axp806_regmap_config;
axp20x->regmap_irq_chip = &axp806_regmap_irq_chip;
break;
case AXP809_ID:
axp20x->nr_cells = ARRAY_SIZE(axp809_cells);
axp20x->cells = axp809_cells;
axp20x->regmap_cfg = &axp22x_regmap_config;
axp20x->regmap_irq_chip = &axp809_regmap_irq_chip;
break;
case AXP813_ID:
axp20x->nr_cells = ARRAY_SIZE(axp813_cells);
axp20x->cells = axp813_cells;
axp20x->regmap_cfg = &axp288_regmap_config;
/*
* The IRQ table given in the datasheet is incorrect.
* In IRQ enable/status registers 1, there are separate
* IRQs for ACIN and VBUS, instead of bits [7:5] being
* the same as bits [4:2]. So it shares the same IRQs
* as the AXP803, rather than the AXP288.
*/
axp20x->regmap_irq_chip = &axp803_regmap_irq_chip;
break;
default:
dev_err(dev, "unsupported AXP20X ID %lu\n", axp20x->variant);
return -EINVAL;
}
dev_info(dev, "AXP20x variant %s found\n",
axp20x_model_names[axp20x->variant]);
return 0;
}
static struct dma_chan *dw_dma_of_xlate(struct of_phandle_args *dma_spec,
struct of_dma *ofdma)
{
struct dw_dma *dw = ofdma->of_dma_data;
struct dw_dma_slave slave = {
.dma_dev = dw->dma.dev,
};
dma_cap_mask_t cap;
if (dma_spec->args_count != 3)
return NULL;
slave.src_id = dma_spec->args[0];
slave.dst_id = dma_spec->args[0];
slave.src_master = dma_spec->args[1];
slave.dst_master = dma_spec->args[2];
if (WARN_ON(slave.src_id >= DW_DMA_MAX_NR_REQUESTS ||
slave.dst_id >= DW_DMA_MAX_NR_REQUESTS ||
slave.src_master >= dw->nr_masters ||
slave.dst_master >= dw->nr_masters))
return NULL;
dma_cap_zero(cap);
dma_cap_set(DMA_SLAVE, cap);
/* TODO: there should be a simpler way to do this */
return dma_request_channel(cap, dw_dma_filter, &slave);
}
#ifdef CONFIG_ACPI
static bool dw_dma_acpi_filter(struct dma_chan *chan, void *param)
{
struct acpi_dma_spec *dma_spec = param;
struct dw_dma_slave slave = {
.dma_dev = dma_spec->dev,
.src_id = dma_spec->slave_id,
.dst_id = dma_spec->slave_id,
.src_master = 1,
.dst_master = 0,
};
return dw_dma_filter(chan, &slave);
}
static void dw_dma_acpi_controller_register(struct dw_dma *dw)
{
struct device *dev = dw->dma.dev;
struct acpi_dma_filter_info *info;
int ret;
info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
if (!info)
return;
dma_cap_zero(info->dma_cap);
dma_cap_set(DMA_SLAVE, info->dma_cap);
info->filter_fn = dw_dma_acpi_filter;
ret = devm_acpi_dma_controller_register(dev, acpi_dma_simple_xlate,
info);
if (ret)
dev_err(dev, "could not register acpi_dma_controller\n");
}
#else /* !CONFIG_ACPI */
static inline void dw_dma_acpi_controller_register(struct dw_dma *dw) {}
#endif /* !CONFIG_ACPI */
#ifdef CONFIG_OF
static struct dw_dma_platform_data *
dw_dma_parse_dt(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct dw_dma_platform_data *pdata;
u32 tmp, arr[DW_DMA_MAX_NR_MASTERS];
if (!np) {
dev_err(&pdev->dev, "Missing DT data\n");
return NULL;
}
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return NULL;
if (of_property_read_u32(np, "dma-channels", &pdata->nr_channels))
return NULL;
if (of_property_read_bool(np, "is_private"))
pdata->is_private = true;
if (!of_property_read_u32(np, "chan_allocation_order", &tmp))
pdata->chan_allocation_order = (unsigned char)tmp;
if (!of_property_read_u32(np, "chan_priority", &tmp))
pdata->chan_priority = tmp;
if (!of_property_read_u32(np, "block_size", &tmp))
pdata->block_size = tmp;
if (!of_property_read_u32(np, "dma-masters", &tmp)) {
if (tmp > DW_DMA_MAX_NR_MASTERS)
return NULL;
pdata->nr_masters = tmp;
}
if (!of_property_read_u32_array(np, "data_width", arr,
pdata->nr_masters))
for (tmp = 0; tmp < pdata->nr_masters; tmp++)
pdata->data_width[tmp] = arr[tmp];
return pdata;
}
#else
static inline struct dw_dma_platform_data *
dw_dma_parse_dt(struct platform_device *pdev)
{
return NULL;
}
#endif
static int dw_probe(struct platform_device *pdev)
{
struct dw_dma_chip *chip;
struct device *dev = &pdev->dev;
struct resource *mem;
const struct acpi_device_id *id;
struct dw_dma_platform_data *pdata;
int err;
chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;
chip->irq = platform_get_irq(pdev, 0);
if (chip->irq < 0)
return chip->irq;
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
chip->regs = devm_ioremap_resource(dev, mem);
if (IS_ERR(chip->regs))
return PTR_ERR(chip->regs);
err = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (err)
return err;
pdata = dev_get_platdata(dev);
if (!pdata)
pdata = dw_dma_parse_dt(pdev);
if (!pdata && has_acpi_companion(dev)) {
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (id)
pdata = (struct dw_dma_platform_data *)id->driver_data;
}
chip->dev = dev;
chip->clk = devm_clk_get(chip->dev, "hclk");
if (IS_ERR(chip->clk))
return PTR_ERR(chip->clk);
err = clk_prepare_enable(chip->clk);
if (err)
return err;
pm_runtime_enable(&pdev->dev);
err = dw_dma_probe(chip, pdata);
if (err)
goto err_dw_dma_probe;
platform_set_drvdata(pdev, chip);
if (pdev->dev.of_node) {
err = of_dma_controller_register(pdev->dev.of_node,
dw_dma_of_xlate, chip->dw);
if (err)
dev_err(&pdev->dev,
"could not register of_dma_controller\n");
}
if (ACPI_HANDLE(&pdev->dev))
dw_dma_acpi_controller_register(chip->dw);
return 0;
err_dw_dma_probe:
pm_runtime_disable(&pdev->dev);
clk_disable_unprepare(chip->clk);
return err;
}
static int dw_remove(struct platform_device *pdev)
{
struct dw_dma_chip *chip = platform_get_drvdata(pdev);
if (pdev->dev.of_node)
of_dma_controller_free(pdev->dev.of_node);
dw_dma_remove(chip);
pm_runtime_disable(&pdev->dev);
clk_disable_unprepare(chip->clk);
return 0;
}
static void dw_shutdown(struct platform_device *pdev)
{
struct dw_dma_chip *chip = platform_get_drvdata(pdev);
dw_dma_disable(chip);
clk_disable_unprepare(chip->clk);
}
#ifdef CONFIG_OF
static const struct of_device_id dw_dma_of_id_table[] = {
{ .compatible = "snps,dma-spear1340" },
{}
};
static int xgene_mdio_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct mii_bus *mdio_bus;
const struct of_device_id *of_id;
struct resource *res;
struct xgene_mdio_pdata *pdata;
void __iomem *csr_base;
int mdio_id = 0, ret = 0;
of_id = of_match_device(xgene_mdio_of_match, &pdev->dev);
if (of_id) {
mdio_id = (enum xgene_mdio_id)of_id->data;
} else {
#ifdef CONFIG_ACPI
const struct acpi_device_id *acpi_id;
acpi_id = acpi_match_device(xgene_mdio_acpi_match, &pdev->dev);
if (acpi_id)
mdio_id = (enum xgene_mdio_id)acpi_id->driver_data;
#endif
}
if (!mdio_id)
return -ENODEV;
pdata = devm_kzalloc(dev, sizeof(struct xgene_mdio_pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
pdata->mdio_id = mdio_id;
pdata->dev = dev;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
csr_base = devm_ioremap_resource(dev, res);
if (IS_ERR(csr_base))
return PTR_ERR(csr_base);
pdata->mac_csr_addr = csr_base;
pdata->mdio_csr_addr = csr_base + BLOCK_XG_MDIO_CSR_OFFSET;
pdata->diag_csr_addr = csr_base + BLOCK_DIAG_CSR_OFFSET;
if (mdio_id == XGENE_MDIO_RGMII)
spin_lock_init(&pdata->mac_lock);
if (dev->of_node) {
pdata->clk = devm_clk_get(dev, NULL);
if (IS_ERR(pdata->clk)) {
dev_err(dev, "Unable to retrieve clk\n");
return PTR_ERR(pdata->clk);
}
}
ret = xgene_mdio_reset(pdata);
if (ret)
return ret;
mdio_bus = mdiobus_alloc();
if (!mdio_bus) {
ret = -ENOMEM;
goto out_clk;
}
mdio_bus->name = "APM X-Gene MDIO bus";
if (mdio_id == XGENE_MDIO_RGMII) {
mdio_bus->read = xgene_mdio_rgmii_read;
mdio_bus->write = xgene_mdio_rgmii_write;
mdio_bus->priv = (void __force *)pdata;
snprintf(mdio_bus->id, MII_BUS_ID_SIZE, "%s",
"xgene-mii-rgmii");
} else {
mdio_bus->read = xgene_xfi_mdio_read;
mdio_bus->write = xgene_xfi_mdio_write;
mdio_bus->priv = (void __force *)pdata->mdio_csr_addr;
snprintf(mdio_bus->id, MII_BUS_ID_SIZE, "%s",
"xgene-mii-xfi");
}
mdio_bus->parent = dev;
platform_set_drvdata(pdev, pdata);
if (dev->of_node) {
ret = of_mdiobus_register(mdio_bus, dev->of_node);
} else {
#ifdef CONFIG_ACPI
/* Mask out all PHYs from auto probing. */
mdio_bus->phy_mask = ~0;
ret = mdiobus_register(mdio_bus);
if (ret)
goto out_mdiobus;
acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_HANDLE(dev), 1,
acpi_register_phy, NULL, mdio_bus, NULL);
#endif
}
if (ret)
goto out_mdiobus;
pdata->mdio_bus = mdio_bus;
xgene_mdio_status = true;
return 0;
out_mdiobus:
mdiobus_free(mdio_bus);
out_clk:
if (dev->of_node)
clk_disable_unprepare(pdata->clk);
return ret;
}
static int sst_acpi_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
int ret = 0;
struct intel_sst_drv *ctx;
const struct acpi_device_id *id;
struct sst_acpi_mach *mach;
struct platform_device *mdev;
struct platform_device *plat_dev;
struct sst_platform_info *pdata;
unsigned int dev_id;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return -ENODEV;
dev_dbg(dev, "for %s", id->id);
mach = (struct sst_acpi_mach *)id->driver_data;
mach = sst_acpi_find_machine(mach);
if (mach == NULL) {
dev_err(dev, "No matching machine driver found\n");
return -ENODEV;
}
pdata = mach->pdata;
ret = kstrtouint(id->id, 16, &dev_id);
if (ret < 0) {
dev_err(dev, "Unique device id conversion error: %d\n", ret);
return ret;
}
dev_dbg(dev, "ACPI device id: %x\n", dev_id);
plat_dev = platform_device_register_data(dev, pdata->platform, -1,
NULL, 0);
if (IS_ERR(plat_dev)) {
dev_err(dev, "Failed to create machine device: %s\n",
pdata->platform);
return PTR_ERR(plat_dev);
}
/*
* Create platform device for sst machine driver,
* pass machine info as pdata
*/
mdev = platform_device_register_data(dev, mach->drv_name, -1,
(const void *)mach, sizeof(*mach));
if (IS_ERR(mdev)) {
dev_err(dev, "Failed to create machine device: %s\n",
mach->drv_name);
return PTR_ERR(mdev);
}
ret = sst_alloc_drv_context(&ctx, dev, dev_id);
if (ret < 0)
return ret;
/* Fill sst platform data */
ctx->pdata = pdata;
strcpy(ctx->firmware_name, mach->fw_filename);
ret = sst_platform_get_resources(ctx);
if (ret)
return ret;
ret = sst_context_init(ctx);
if (ret < 0)
return ret;
/* need to save shim registers in BYT */
ctx->shim_regs64 = devm_kzalloc(ctx->dev, sizeof(*ctx->shim_regs64),
GFP_KERNEL);
if (!ctx->shim_regs64) {
ret = -ENOMEM;
goto do_sst_cleanup;
}
sst_configure_runtime_pm(ctx);
platform_set_drvdata(pdev, ctx);
return ret;
do_sst_cleanup:
sst_context_cleanup(ctx);
platform_set_drvdata(pdev, NULL);
dev_err(ctx->dev, "failed with %d\n", ret);
return ret;
}
