diff options
Diffstat (limited to 'drivers/mfd/intel_soc_pmic_chtwc.c')
| -rw-r--r-- | drivers/mfd/intel_soc_pmic_chtwc.c | 67 |
1 files changed, 51 insertions, 16 deletions
diff --git a/drivers/mfd/intel_soc_pmic_chtwc.c b/drivers/mfd/intel_soc_pmic_chtwc.c index 49c5f71664bc..9216f0d34206 100644 --- a/drivers/mfd/intel_soc_pmic_chtwc.c +++ b/drivers/mfd/intel_soc_pmic_chtwc.c @@ -10,6 +10,7 @@ #include <linux/acpi.h> #include <linux/delay.h> +#include <linux/dmi.h> #include <linux/err.h> #include <linux/i2c.h> #include <linux/interrupt.h> @@ -134,32 +135,66 @@ static const struct regmap_irq_chip cht_wc_regmap_irq_chip = { .num_regs = 1, }; +static const struct dmi_system_id cht_wc_model_dmi_ids[] = { + { + /* GPD win / GPD pocket mini laptops */ + .driver_data = (void *)(long)INTEL_CHT_WC_GPD_WIN_POCKET, + /* + * This DMI match may not seem unique, but it is. In the 67000+ + * DMI decode dumps from linux-hardware.org only 116 have + * board_vendor set to "AMI Corporation" and of those 116 only + * the GPD win's and pocket's board_name is "Default string". + */ + .matches = { + DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), + DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), + DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), + }, + }, { + /* Xiaomi Mi Pad 2 */ + .driver_data = (void *)(long)INTEL_CHT_WC_XIAOMI_MIPAD2, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Xiaomi Inc"), + DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"), + }, + }, { + /* Lenovo Yoga Book X90F / X91F / X91L */ + .driver_data = (void *)(long)INTEL_CHT_WC_LENOVO_YOGABOOK1, + .matches = { + /* Non exact match to match all versions */ + DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X9"), + }, + }, + { } +}; + static int cht_wc_probe(struct i2c_client *client) { struct device *dev = &client->dev; + const struct dmi_system_id *id; struct intel_soc_pmic *pmic; acpi_status status; unsigned long long hrv; int ret; status = acpi_evaluate_integer(ACPI_HANDLE(dev), "_HRV", NULL, &hrv); - if (ACPI_FAILURE(status)) { - dev_err(dev, "Failed to get PMIC hardware revision\n"); - return -ENODEV; - } - if (hrv != CHT_WC_HRV) { - dev_err(dev, "Invalid PMIC hardware revision: %llu\n", hrv); - return -ENODEV; - } - if (client->irq < 0) { - dev_err(dev, "Invalid IRQ\n"); - return -EINVAL; - } + if (ACPI_FAILURE(status)) + return dev_err_probe(dev, -ENODEV, "Failed to get PMIC hardware revision\n"); + if (hrv != CHT_WC_HRV) + return dev_err_probe(dev, -ENODEV, "Invalid PMIC hardware revision: %llu\n", hrv); + + if (client->irq < 0) + return dev_err_probe(dev, -EINVAL, "Invalid IRQ\n"); pmic = devm_kzalloc(dev, sizeof(*pmic), GFP_KERNEL); if (!pmic) return -ENOMEM; + id = dmi_first_match(cht_wc_model_dmi_ids); + if (id) + pmic->cht_wc_model = (long)id->driver_data; + pmic->irq = client->irq; pmic->dev = dev; i2c_set_clientdata(client, pmic); @@ -187,7 +222,7 @@ static void cht_wc_shutdown(struct i2c_client *client) disable_irq(pmic->irq); } -static int __maybe_unused cht_wc_suspend(struct device *dev) +static int cht_wc_suspend(struct device *dev) { struct intel_soc_pmic *pmic = dev_get_drvdata(dev); @@ -196,7 +231,7 @@ static int __maybe_unused cht_wc_suspend(struct device *dev) return 0; } -static int __maybe_unused cht_wc_resume(struct device *dev) +static int cht_wc_resume(struct device *dev) { struct intel_soc_pmic *pmic = dev_get_drvdata(dev); @@ -204,7 +239,7 @@ static int __maybe_unused cht_wc_resume(struct device *dev) return 0; } -static SIMPLE_DEV_PM_OPS(cht_wc_pm_ops, cht_wc_suspend, cht_wc_resume); +static DEFINE_SIMPLE_DEV_PM_OPS(cht_wc_pm_ops, cht_wc_suspend, cht_wc_resume); static const struct i2c_device_id cht_wc_i2c_id[] = { { } @@ -218,7 +253,7 @@ static const struct acpi_device_id cht_wc_acpi_ids[] = { static struct i2c_driver cht_wc_driver = { .driver = { .name = "CHT Whiskey Cove PMIC", - .pm = &cht_wc_pm_ops, + .pm = pm_sleep_ptr(&cht_wc_pm_ops), .acpi_match_table = cht_wc_acpi_ids, }, .probe_new = cht_wc_probe, |