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| author | Aaron Lu <aaron.lu@intel.com> | 2014-11-24 12:21:54 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-11-27 01:32:05 +0300 |
| commit | b1eea857d8c70dc3789cc2231e3c0a273a67ba06 (patch) | |
| tree | 4aa99b39d0b8aa244471dc2e8300dabc398c5194 /drivers/acpi/pmic/intel_pmic.h | |
| parent | a26033a1f56b7b1f8a56050c0a9095694aecae11 (diff) | |
| download | linux-b1eea857d8c70dc3789cc2231e3c0a273a67ba06.tar.xz | |
ACPI / PMIC: support PMIC operation region for CrystalCove
The Baytrail-T platform firmware has defined two customized operation
regions for PMIC chip Crystal Cove - one is for power resource handling
and one is for thermal: sensor temperature reporting, trip point setting,
etc. This patch adds support for them on top of the existing Crystal Cove
PMIC driver.
The reason to split code into a separate file intel_pmic.c is that there
are more PMIC drivers with ACPI operation region support coming and we can
re-use those code. The intel_pmic_opregion_data structure is created also
for this purpose: when we need to support a new PMIC's operation region,
we just need to fill those callbacks and the two register mapping tables.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Lee Jones <lee.jones@linaro.org> for the MFD part
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/pmic/intel_pmic.h')
| -rw-r--r-- | drivers/acpi/pmic/intel_pmic.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/acpi/pmic/intel_pmic.h b/drivers/acpi/pmic/intel_pmic.h new file mode 100644 index 000000000000..d4e90af8f0dd --- /dev/null +++ b/drivers/acpi/pmic/intel_pmic.h @@ -0,0 +1,25 @@ +#ifndef __INTEL_PMIC_H +#define __INTEL_PMIC_H + +struct pmic_table { + int address; /* operation region address */ + int reg; /* corresponding thermal register */ + int bit; /* control bit for power */ +}; + +struct intel_pmic_opregion_data { + int (*get_power)(struct regmap *r, int reg, int bit, u64 *value); + int (*update_power)(struct regmap *r, int reg, int bit, bool on); + int (*get_raw_temp)(struct regmap *r, int reg); + int (*update_aux)(struct regmap *r, int reg, int raw_temp); + int (*get_policy)(struct regmap *r, int reg, u64 *value); + int (*update_policy)(struct regmap *r, int reg, int enable); + struct pmic_table *power_table; + int power_table_count; + struct pmic_table *thermal_table; + int thermal_table_count; +}; + +int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle, struct regmap *regmap, struct intel_pmic_opregion_data *d); + +#endif |