/*
* Instantiate the generic non-control parts of the device.
*/
static int wm8994_device_init(struct wm8994 *wm8994, int irq)
{
struct wm8994_pdata *pdata = wm8994->dev->platform_data;
const char *devname;
int ret, i;
mutex_init(&wm8994->io_lock);
dev_set_drvdata(wm8994->dev, wm8994);
//
ret = gpio_request(GPIO_WM8994_LDO_EN, "wm8994_ldo");
if (ret < 0) {
printk(KERN_ERR "Can't request gpio%d for wm8994_ldo: %d\n",
GPIO_WM8994_LDO_EN, ret);
goto err;
}
tegra_gpio_enable(GPIO_WM8994_LDO_EN);
ret = gpio_direction_output(GPIO_WM8994_LDO_EN, 1);
if (ret < 0) {
printk(KERN_ERR "Can't set gpio%d direction to output: %d\n",
GPIO_WM8994_LDO_EN, ret);
goto err;
}
gpio_set_value(GPIO_WM8994_LDO_EN, 1);
msleep(10);
//
//
/* Add the on-chip regulators first for bootstrapping */
ret = mfd_add_devices(wm8994->dev, -1,
wm8994_regulator_devs,
ARRAY_SIZE(wm8994_regulator_devs),
NULL, 0);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
goto err;
}
switch (wm8994->type) {
case WM8994:
wm8994->num_supplies = ARRAY_SIZE(wm8994_main_supplies);
break;
case WM8958:
wm8994->num_supplies = ARRAY_SIZE(wm8958_main_supplies);
break;
default:
BUG();
return -EINVAL;
}
wm8994->supplies = kzalloc(sizeof(struct regulator_bulk_data) *
wm8994->num_supplies,
GFP_KERNEL);
if (!wm8994->supplies) {
ret = -ENOMEM;
goto err;
}
switch (wm8994->type) {
case WM8994:
for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++)
wm8994->supplies[i].supply = wm8994_main_supplies[i];
break;
case WM8958:
for (i = 0; i < ARRAY_SIZE(wm8958_main_supplies); i++)
wm8994->supplies[i].supply = wm8958_main_supplies[i];
break;
default:
BUG();
return -EINVAL;
}
ret = regulator_bulk_get(wm8994->dev, wm8994->num_supplies,
wm8994->supplies);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to get supplies: %d\n", ret);
goto err_supplies;
}
ret = regulator_bulk_enable(wm8994->num_supplies,
wm8994->supplies);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to enable supplies: %d\n", ret);
goto err_get;
}
ret = wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET);
if (ret < 0) {
dev_err(wm8994->dev, "Failed to read ID register\n");
goto err_enable;
}
switch (ret) {
case 0x8994:
devname = "WM8994";
if (wm8994->type != WM8994)
dev_warn(wm8994->dev, "Device registered as type %d\n",
wm8994->type);
wm8994->type = WM8994;
break;
case 0x8958:
devname = "WM8958";
if (wm8994->type != WM8958)
dev_warn(wm8994->dev, "Device registered as type %d\n",
wm8994->type);
wm8994->type = WM8958;
break;
default:
dev_err(wm8994->dev, "Device is not a WM8994, ID is %x\n",
ret);
ret = -EINVAL;
goto err_enable;
}
ret = wm8994_reg_read(wm8994, WM8994_CHIP_REVISION);
if (ret < 0) {
dev_err(wm8994->dev, "Failed to read revision register: %d\n",
ret);
goto err_enable;
}
switch (ret) {
case 0:
case 1:
if (wm8994->type == WM8994)
dev_warn(wm8994->dev,
"revision %c not fully supported\n",
'A' + ret);
break;
default:
break;
}
dev_info(wm8994->dev, "%s revision %c\n", devname, 'A' + ret);
if (pdata) {
wm8994->irq_base = pdata->irq_base;
wm8994->gpio_base = pdata->gpio_base;
/* GPIO configuration is only applied if it's non-zero */
for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
if (pdata->gpio_defaults[i]) {
wm8994_set_bits(wm8994, WM8994_GPIO_1 + i,
0xffff,
pdata->gpio_defaults[i]);
}
}
}
/* In some system designs where the regulators are not in use,
* we can achieve a small reduction in leakage currents by
* floating LDO outputs. This bit makes no difference if the
* LDOs are enabled, it only affects cases where the LDOs were
* in operation and are then disabled.
*/
for (i = 0; i < WM8994_NUM_LDO_REGS; i++) {
if (wm8994_ldo_in_use(pdata, i))
wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
WM8994_LDO1_DISCH, WM8994_LDO1_DISCH);
else
wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
WM8994_LDO1_DISCH, 0);
}
wm8994_irq_init(wm8994);
ret = mfd_add_devices(wm8994->dev, -1,
wm8994_devs, ARRAY_SIZE(wm8994_devs),
NULL, 0);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
goto err_irq;
}
#if !defined(CONFIG_ARCH_TEGRA)
pm_runtime_enable(wm8994->dev);
pm_runtime_resume(wm8994->dev);
#endif
return 0;
err_irq:
wm8994_irq_exit(wm8994);
err_enable:
regulator_bulk_disable(wm8994->num_supplies,
wm8994->supplies);
err_get:
regulator_bulk_free(wm8994->num_supplies, wm8994->supplies);
err_supplies:
kfree(wm8994->supplies);
err:
mfd_remove_devices(wm8994->dev);
kfree(wm8994);
return ret;
}
static int wm8994_device_init(struct wm8994 *wm8994, unsigned long id, int irq)
{
struct wm8994_pdata *pdata = wm8994->dev->platform_data;
int ret, i;
mutex_init(&wm8994->io_lock);
dev_set_drvdata(wm8994->dev, wm8994);
/* Add the on-chip regulators first for bootstrapping */
ret = mfd_add_devices(wm8994->dev, -1,
wm8994_regulator_devs,
ARRAY_SIZE(wm8994_regulator_devs),
NULL, 0);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
goto err;
}
wm8994->supplies = kzalloc(sizeof(struct regulator_bulk_data) *
ARRAY_SIZE(wm8994_main_supplies),
GFP_KERNEL);
if (!wm8994->supplies)
goto err;
for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++)
wm8994->supplies[i].supply = wm8994_main_supplies[i];
ret = regulator_bulk_get(wm8994->dev, ARRAY_SIZE(wm8994_main_supplies),
wm8994->supplies);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to get supplies: %d\n", ret);
goto err_supplies;
}
ret = regulator_bulk_enable(ARRAY_SIZE(wm8994_main_supplies),
wm8994->supplies);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to enable supplies: %d\n", ret);
goto err_get;
}
ret = wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET);
if (ret < 0) {
dev_err(wm8994->dev, "Failed to read ID register\n");
goto err_enable;
}
if (ret != 0x8994) {
dev_err(wm8994->dev, "Device is not a WM8994, ID is %x\n",
ret);
ret = -EINVAL;
goto err_enable;
}
ret = wm8994_reg_read(wm8994, WM8994_CHIP_REVISION);
if (ret < 0) {
dev_err(wm8994->dev, "Failed to read revision register: %d\n",
ret);
goto err_enable;
}
switch (ret) {
case 0:
case 1:
dev_warn(wm8994->dev, "revision %c not fully supported\n",
'A' + ret);
break;
default:
dev_info(wm8994->dev, "revision %c\n", 'A' + ret);
break;
}
if (pdata) {
wm8994->irq_base = pdata->irq_base;
wm8994->gpio_base = pdata->gpio_base;
/* GPIO configuration is only applied if it's non-zero */
for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
if (pdata->gpio_defaults[i]) {
wm8994_set_bits(wm8994, WM8994_GPIO_1 + i,
0xffff,
pdata->gpio_defaults[i]);
}
}
}
/* In some system designs where the regulators are not in use,
* we can achieve a small reduction in leakage currents by
* floating LDO outputs. This bit makes no difference if the
* LDOs are enabled, it only affects cases where the LDOs were
* in operation and are then disabled.
*/
for (i = 0; i < WM8994_NUM_LDO_REGS; i++) {
if (wm8994_ldo_in_use(pdata, i))
wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
WM8994_LDO1_DISCH, WM8994_LDO1_DISCH);
else
wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
WM8994_LDO1_DISCH, 0);
}
wm8994_irq_init(wm8994);
ret = mfd_add_devices(wm8994->dev, -1,
wm8994_devs, ARRAY_SIZE(wm8994_devs),
NULL, 0);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
goto err_irq;
}
return 0;
err_irq:
wm8994_irq_exit(wm8994);
err_enable:
regulator_bulk_disable(ARRAY_SIZE(wm8994_main_supplies),
wm8994->supplies);
err_get:
regulator_bulk_free(ARRAY_SIZE(wm8994_main_supplies), wm8994->supplies);
err_supplies:
kfree(wm8994->supplies);
err:
mfd_remove_devices(wm8994->dev);
kfree(wm8994);
return ret;
}
/*
* Instantiate the generic non-control parts of the device.
*/
static int wm8994_device_init(struct wm8994 *wm8994, int irq)
{
struct wm8994_pdata *pdata = wm8994->dev->platform_data;
const char *devname;
int ret, i;
int pulls = 0;
mutex_init(&wm8994->io_lock);
dev_set_drvdata(wm8994->dev, wm8994);
/* Add the on-chip regulators first for bootstrapping */
ret = mfd_add_devices(wm8994->dev, -1,
wm8994_regulator_devs,
ARRAY_SIZE(wm8994_regulator_devs),
NULL, 0);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
goto err;
}
switch (wm8994->type) {
case WM1811:
wm8994->num_supplies = ARRAY_SIZE(wm1811_main_supplies);
break;
case WM8994:
wm8994->num_supplies = ARRAY_SIZE(wm8994_main_supplies);
break;
case WM8958:
wm8994->num_supplies = ARRAY_SIZE(wm8958_main_supplies);
break;
default:
BUG();
goto err;
}
wm8994->supplies = kzalloc(sizeof(struct regulator_bulk_data) *
wm8994->num_supplies,
GFP_KERNEL);
if (!wm8994->supplies) {
ret = -ENOMEM;
goto err;
}
switch (wm8994->type) {
case WM1811:
for (i = 0; i < ARRAY_SIZE(wm1811_main_supplies); i++)
wm8994->supplies[i].supply = wm1811_main_supplies[i];
break;
case WM8994:
for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++)
wm8994->supplies[i].supply = wm8994_main_supplies[i];
break;
case WM8958:
for (i = 0; i < ARRAY_SIZE(wm8958_main_supplies); i++)
wm8994->supplies[i].supply = wm8958_main_supplies[i];
break;
default:
BUG();
goto err_supplies;
}
ret = regulator_bulk_get(wm8994->dev, wm8994->num_supplies,
wm8994->supplies);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to get supplies: %d\n", ret);
goto err_supplies;
}
ret = regulator_bulk_enable(wm8994->num_supplies,
wm8994->supplies);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to enable supplies: %d\n", ret);
goto err_get;
}
ret = wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET);
if (ret < 0) {
dev_err(wm8994->dev, "Failed to read ID register\n");
goto err_enable;
} else
dev_info(wm8994->dev, "Succeeded to read ID register\n");
switch (ret) {
case 0x1811:
devname = "WM1811";
if (wm8994->type != WM1811)
dev_warn(wm8994->dev, "Device registered as type %d\n",
wm8994->type);
wm8994->type = WM1811;
break;
case 0x8994:
devname = "WM8994";
if (wm8994->type != WM8994)
dev_warn(wm8994->dev, "Device registered as type %d\n",
wm8994->type);
wm8994->type = WM8994;
break;
case 0x8958:
devname = "WM8958";
if (wm8994->type != WM8958)
dev_warn(wm8994->dev, "Device registered as type %d\n",
wm8994->type);
wm8994->type = WM8958;
break;
default:
dev_err(wm8994->dev, "Device is not a WM8994, ID is %x\n",
ret);
ret = -EINVAL;
goto err_enable;
}
ret = wm8994_reg_read(wm8994, WM8994_CHIP_REVISION);
if (ret < 0) {
dev_err(wm8994->dev, "Failed to read revision register: %d\n",
ret);
goto err_enable;
}
switch (wm8994->type) {
case WM8994:
switch (ret) {
case 0:
case 1:
dev_warn(wm8994->dev,
"revision %c not fully supported\n",
'A' + ret);
break;
default:
break;
}
break;
default:
break;
}
dev_info(wm8994->dev, "%s revision %c\n", devname, 'A' + ret);
if (pdata) {
wm8994->irq_base = pdata->irq_base;
wm8994->gpio_base = pdata->gpio_base;
/* GPIO configuration is only applied if it's non-zero */
for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
if (pdata->gpio_defaults[i]) {
wm8994_set_bits(wm8994, WM8994_GPIO_1 + i,
0xffff,
pdata->gpio_defaults[i]);
}
}
wm8994->ldo_ena_always_driven = pdata->ldo_ena_always_driven;
if (pdata->spkmode_pu)
pulls |= WM8994_SPKMODE_PU;
}
/* Disable unneeded pulls */
wm8994_set_bits(wm8994, WM8994_PULL_CONTROL_2,
WM8994_LDO1ENA_PD | WM8994_LDO2ENA_PD |
WM8994_SPKMODE_PU | WM8994_CSNADDR_PD,
pulls);
/* In some system designs where the regulators are not in use,
* we can achieve a small reduction in leakage currents by
* floating LDO outputs. This bit makes no difference if the
* LDOs are enabled, it only affects cases where the LDOs were
* in operation and are then disabled.
*/
for (i = 0; i < WM8994_NUM_LDO_REGS; i++) {
if (wm8994_ldo_in_use(pdata, i))
wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
WM8994_LDO1_DISCH, WM8994_LDO1_DISCH);
else
wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
WM8994_LDO1_DISCH, 0);
}
wm8994_irq_init(wm8994);
ret = mfd_add_devices(wm8994->dev, -1,
wm8994_devs, ARRAY_SIZE(wm8994_devs),
NULL, 0);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
goto err_irq;
}
pm_runtime_enable(wm8994->dev);
pm_runtime_resume(wm8994->dev);
mclk_gpio = pdata->mclk_pin;
set_mclk(1);
return 0;
err_irq:
wm8994_irq_exit(wm8994);
err_enable:
regulator_bulk_disable(wm8994->num_supplies,
wm8994->supplies);
err_get:
regulator_bulk_free(wm8994->num_supplies, wm8994->supplies);
err_supplies:
kfree(wm8994->supplies);
err:
mfd_remove_devices(wm8994->dev);
return ret;
}
/*
* Instantiate the generic non-control parts of the device.
*/
static int wm8994_device_init(struct wm8994 *wm8994, int irq)
{
struct wm8994_pdata *pdata;
struct regmap_config *regmap_config;
const struct reg_default *regmap_patch = NULL;
const char *devname;
int ret, i, patch_regs = 0;
int pulls = 0;
if (dev_get_platdata(wm8994->dev)) {
pdata = dev_get_platdata(wm8994->dev);
wm8994->pdata = *pdata;
}
pdata = &wm8994->pdata;
ret = wm8994_set_pdata_from_of(wm8994);
if (ret != 0)
return ret;
dev_set_drvdata(wm8994->dev, wm8994);
/* Add the on-chip regulators first for bootstrapping */
ret = mfd_add_devices(wm8994->dev, -1,
wm8994_regulator_devs,
ARRAY_SIZE(wm8994_regulator_devs),
NULL, 0, NULL);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
goto err;
}
switch (wm8994->type) {
case WM1811:
wm8994->num_supplies = ARRAY_SIZE(wm1811_main_supplies);
break;
case WM8994:
wm8994->num_supplies = ARRAY_SIZE(wm8994_main_supplies);
break;
case WM8958:
wm8994->num_supplies = ARRAY_SIZE(wm8958_main_supplies);
break;
default:
BUG();
goto err;
}
wm8994->supplies = devm_kzalloc(wm8994->dev,
sizeof(struct regulator_bulk_data) *
wm8994->num_supplies, GFP_KERNEL);
if (!wm8994->supplies) {
ret = -ENOMEM;
goto err;
}
switch (wm8994->type) {
case WM1811:
for (i = 0; i < ARRAY_SIZE(wm1811_main_supplies); i++)
wm8994->supplies[i].supply = wm1811_main_supplies[i];
break;
case WM8994:
for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++)
wm8994->supplies[i].supply = wm8994_main_supplies[i];
break;
case WM8958:
for (i = 0; i < ARRAY_SIZE(wm8958_main_supplies); i++)
wm8994->supplies[i].supply = wm8958_main_supplies[i];
break;
default:
BUG();
goto err;
}
ret = devm_regulator_bulk_get(wm8994->dev, wm8994->num_supplies,
wm8994->supplies);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to get supplies: %d\n", ret);
goto err;
}
ret = regulator_bulk_enable(wm8994->num_supplies,
wm8994->supplies);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to enable supplies: %d\n", ret);
goto err;
}
ret = wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET);
if (ret < 0) {
dev_err(wm8994->dev, "Failed to read ID register\n");
goto err_enable;
}
switch (ret) {
case 0x1811:
devname = "WM1811";
if (wm8994->type != WM1811)
dev_warn(wm8994->dev, "Device registered as type %d\n",
wm8994->type);
wm8994->type = WM1811;
break;
case 0x8994:
devname = "WM8994";
if (wm8994->type != WM8994)
dev_warn(wm8994->dev, "Device registered as type %d\n",
wm8994->type);
wm8994->type = WM8994;
break;
case 0x8958:
devname = "WM8958";
if (wm8994->type != WM8958)
dev_warn(wm8994->dev, "Device registered as type %d\n",
wm8994->type);
wm8994->type = WM8958;
break;
default:
dev_err(wm8994->dev, "Device is not a WM8994, ID is %x\n",
ret);
ret = -EINVAL;
goto err_enable;
}
ret = wm8994_reg_read(wm8994, WM8994_CHIP_REVISION);
if (ret < 0) {
dev_err(wm8994->dev, "Failed to read revision register: %d\n",
ret);
goto err_enable;
}
wm8994->revision = ret & WM8994_CHIP_REV_MASK;
wm8994->cust_id = (ret & WM8994_CUST_ID_MASK) >> WM8994_CUST_ID_SHIFT;
switch (wm8994->type) {
case WM8994:
switch (wm8994->revision) {
case 0:
case 1:
dev_warn(wm8994->dev,
"revision %c not fully supported\n",
'A' + wm8994->revision);
break;
case 2:
case 3:
default:
regmap_patch = wm8994_revc_patch;
patch_regs = ARRAY_SIZE(wm8994_revc_patch);
break;
}
break;
case WM8958:
switch (wm8994->revision) {
case 0:
regmap_patch = wm8958_reva_patch;
patch_regs = ARRAY_SIZE(wm8958_reva_patch);
break;
default:
break;
}
break;
case WM1811:
/* Revision C did not change the relevant layer */
if (wm8994->revision > 1)
wm8994->revision++;
regmap_patch = wm1811_reva_patch;
patch_regs = ARRAY_SIZE(wm1811_reva_patch);
break;
default:
break;
}
dev_info(wm8994->dev, "%s revision %c CUST_ID %02x\n", devname,
'A' + wm8994->revision, wm8994->cust_id);
switch (wm8994->type) {
case WM1811:
regmap_config = &wm1811_regmap_config;
break;
case WM8994:
regmap_config = &wm8994_regmap_config;
break;
case WM8958:
regmap_config = &wm8958_regmap_config;
break;
default:
dev_err(wm8994->dev, "Unknown device type %d\n", wm8994->type);
return -EINVAL;
}
ret = regmap_reinit_cache(wm8994->regmap, regmap_config);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to reinit register cache: %d\n",
ret);
return ret;
}
/* Explicitly put the device into reset in case regulators
* don't get disabled in order to ensure we know the device
* state.
*/
ret = wm8994_reg_write(wm8994, WM8994_SOFTWARE_RESET,
wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET));
if (ret != 0) {
dev_err(wm8994->dev, "Failed to reset device: %d\n", ret);
return ret;
}
if (regmap_patch) {
ret = regmap_register_patch(wm8994->regmap, regmap_patch,
patch_regs);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to register patch: %d\n",
ret);
goto err;
}
}
wm8994->irq_base = pdata->irq_base;
wm8994->gpio_base = pdata->gpio_base;
/* GPIO configuration is only applied if it's non-zero */
for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
if (pdata->gpio_defaults[i]) {
wm8994_set_bits(wm8994, WM8994_GPIO_1 + i,
0xffff, pdata->gpio_defaults[i]);
}
}
wm8994->ldo_ena_always_driven = pdata->ldo_ena_always_driven;
if (pdata->spkmode_pu)
pulls |= WM8994_SPKMODE_PU;
/* Disable unneeded pulls */
wm8994_set_bits(wm8994, WM8994_PULL_CONTROL_2,
WM8994_LDO1ENA_PD | WM8994_LDO2ENA_PD |
WM8994_SPKMODE_PU | WM8994_CSNADDR_PD,
pulls);
/* In some system designs where the regulators are not in use,
* we can achieve a small reduction in leakage currents by
* floating LDO outputs. This bit makes no difference if the
* LDOs are enabled, it only affects cases where the LDOs were
* in operation and are then disabled.
*/
for (i = 0; i < WM8994_NUM_LDO_REGS; i++) {
if (wm8994_ldo_in_use(pdata, i))
wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
WM8994_LDO1_DISCH, WM8994_LDO1_DISCH);
else
wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
WM8994_LDO1_DISCH, 0);
}
wm8994_irq_init(wm8994);
ret = mfd_add_devices(wm8994->dev, -1,
wm8994_devs, ARRAY_SIZE(wm8994_devs),
NULL, 0, NULL);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
goto err_irq;
}
pm_runtime_enable(wm8994->dev);
pm_runtime_idle(wm8994->dev);
return 0;
err_irq:
wm8994_irq_exit(wm8994);
err_enable:
regulator_bulk_disable(wm8994->num_supplies,
wm8994->supplies);
err:
mfd_remove_devices(wm8994->dev);
return ret;
}
static __devinit int wm8994_device_init(struct wm8994 *wm8994, int irq)
{
struct wm8994_pdata *pdata = wm8994->dev->platform_data;
struct regmap_config *regmap_config;
const struct reg_default *regmap_patch = NULL;
const char *devname;
int ret, i, patch_regs;
int pulls = 0;
dev_set_drvdata(wm8994->dev, wm8994);
ret = mfd_add_devices(wm8994->dev, -1,
wm8994_regulator_devs,
ARRAY_SIZE(wm8994_regulator_devs),
NULL, 0);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
goto err;
}
switch (wm8994->type) {
case WM1811:
wm8994->num_supplies = ARRAY_SIZE(wm1811_main_supplies);
break;
case WM8994:
wm8994->num_supplies = ARRAY_SIZE(wm8994_main_supplies);
break;
case WM8958:
wm8994->num_supplies = ARRAY_SIZE(wm8958_main_supplies);
break;
default:
BUG();
goto err;
}
wm8994->supplies = devm_kzalloc(wm8994->dev,
sizeof(struct regulator_bulk_data) *
wm8994->num_supplies, GFP_KERNEL);
if (!wm8994->supplies) {
ret = -ENOMEM;
goto err;
}
switch (wm8994->type) {
case WM1811:
for (i = 0; i < ARRAY_SIZE(wm1811_main_supplies); i++)
wm8994->supplies[i].supply = wm1811_main_supplies[i];
break;
case WM8994:
for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++)
wm8994->supplies[i].supply = wm8994_main_supplies[i];
break;
case WM8958:
for (i = 0; i < ARRAY_SIZE(wm8958_main_supplies); i++)
wm8994->supplies[i].supply = wm8958_main_supplies[i];
break;
default:
BUG();
goto err;
}
ret = regulator_bulk_get(wm8994->dev, wm8994->num_supplies,
wm8994->supplies);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to get supplies: %d\n", ret);
goto err;
}
ret = regulator_bulk_enable(wm8994->num_supplies,
wm8994->supplies);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to enable supplies: %d\n", ret);
goto err_get;
}
ret = wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET);
if (ret < 0) {
dev_err(wm8994->dev, "Failed to read ID register\n");
goto err_enable;
}
switch (ret) {
case 0x1811:
devname = "WM1811";
if (wm8994->type != WM1811)
dev_warn(wm8994->dev, "Device registered as type %d\n",
wm8994->type);
wm8994->type = WM1811;
break;
case 0x8994:
devname = "WM8994";
if (wm8994->type != WM8994)
dev_warn(wm8994->dev, "Device registered as type %d\n",
wm8994->type);
wm8994->type = WM8994;
break;
case 0x8958:
devname = "WM8958";
if (wm8994->type != WM8958)
dev_warn(wm8994->dev, "Device registered as type %d\n",
wm8994->type);
wm8994->type = WM8958;
break;
default:
dev_err(wm8994->dev, "Device is not a WM8994, ID is %x\n",
ret);
ret = -EINVAL;
goto err_enable;
}
ret = wm8994_reg_read(wm8994, WM8994_CHIP_REVISION);
if (ret < 0) {
dev_err(wm8994->dev, "Failed to read revision register: %d\n",
ret);
goto err_enable;
}
wm8994->revision = ret;
switch (wm8994->type) {
case WM8994:
switch (wm8994->revision) {
case 0:
case 1:
dev_warn(wm8994->dev,
"revision %c not fully supported\n",
'A' + wm8994->revision);
break;
case 2:
case 3:
regmap_patch = wm8994_revc_patch;
patch_regs = ARRAY_SIZE(wm8994_revc_patch);
break;
default:
break;
}
break;
case WM8958:
switch (wm8994->revision) {
case 0:
regmap_patch = wm8958_reva_patch;
patch_regs = ARRAY_SIZE(wm8958_reva_patch);
break;
default:
break;
}
break;
case WM1811:
if (wm8994->revision > 1)
wm8994->revision++;
switch (wm8994->revision) {
case 0:
case 1:
case 2:
case 3:
case 4:
regmap_patch = wm1811_reva_patch;
patch_regs = ARRAY_SIZE(wm1811_reva_patch);
break;
default:
break;
}
break;
default:
break;
}
dev_info(wm8994->dev, "%s revision %c\n", devname,
'A' + wm8994->revision);
switch (wm8994->type) {
case WM1811:
regmap_config = &wm1811_regmap_config;
break;
case WM8994:
regmap_config = &wm8994_regmap_config;
break;
case WM8958:
regmap_config = &wm8958_regmap_config;
break;
default:
dev_err(wm8994->dev, "Unknown device type %d\n", wm8994->type);
return -EINVAL;
}
ret = regmap_reinit_cache(wm8994->regmap, regmap_config);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to reinit register cache: %d\n",
ret);
return ret;
}
if (regmap_patch) {
ret = regmap_register_patch(wm8994->regmap, regmap_patch,
patch_regs);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to register patch: %d\n",
ret);
goto err;
}
}
if (pdata) {
wm8994->irq_base = pdata->irq_base;
wm8994->gpio_base = pdata->gpio_base;
for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
if (pdata->gpio_defaults[i]) {
wm8994_set_bits(wm8994, WM8994_GPIO_1 + i,
0xffff,
pdata->gpio_defaults[i]);
}
}
wm8994->ldo_ena_always_driven = pdata->ldo_ena_always_driven;
if (pdata->spkmode_pu)
pulls |= WM8994_SPKMODE_PU;
}
wm8994_set_bits(wm8994, WM8994_PULL_CONTROL_2,
WM8994_LDO1ENA_PD | WM8994_LDO2ENA_PD |
WM8994_SPKMODE_PU | WM8994_CSNADDR_PD,
pulls);
for (i = 0; i < WM8994_NUM_LDO_REGS; i++) {
if (wm8994_ldo_in_use(pdata, i))
wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
WM8994_LDO1_DISCH, WM8994_LDO1_DISCH);
else
wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
WM8994_LDO1_DISCH, 0);
}
wm8994_irq_init(wm8994);
ret = mfd_add_devices(wm8994->dev, -1,
wm8994_devs, ARRAY_SIZE(wm8994_devs),
NULL, 0);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
goto err_irq;
}
pm_runtime_enable(wm8994->dev);
pm_runtime_idle(wm8994->dev);
return 0;
err_irq:
wm8994_irq_exit(wm8994);
err_enable:
regulator_bulk_disable(wm8994->num_supplies,
wm8994->supplies);
err_get:
regulator_bulk_free(wm8994->num_supplies, wm8994->supplies);
err:
mfd_remove_devices(wm8994->dev);
return ret;
}
