diff options
112 files changed, 2823 insertions, 3246 deletions
diff --git a/drivers/acpi/pmic/intel_pmic.c b/drivers/acpi/pmic/intel_pmic.c index ca18e0d23df9..c14cfaea92e2 100644 --- a/drivers/acpi/pmic/intel_pmic.c +++ b/drivers/acpi/pmic/intel_pmic.c @@ -15,6 +15,7 @@ #include <linux/export.h> #include <linux/acpi.h> +#include <linux/mfd/intel_soc_pmic.h> #include <linux/regmap.h> #include <acpi/acpi_lpat.h> #include "intel_pmic.h" @@ -36,6 +37,8 @@ struct intel_pmic_opregion { struct intel_pmic_regs_handler_ctx ctx; }; +static struct intel_pmic_opregion *intel_pmic_opregion; + static int pmic_get_reg_bit(int address, struct pmic_table *table, int count, int *reg, int *bit) { @@ -304,6 +307,7 @@ int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle, } opregion->data = d; + intel_pmic_opregion = opregion; return 0; out_remove_thermal_handler: @@ -319,3 +323,60 @@ out_error: return ret; } EXPORT_SYMBOL_GPL(intel_pmic_install_opregion_handler); + +/** + * intel_soc_pmic_exec_mipi_pmic_seq_element - Execute PMIC MIPI sequence + * @i2c_address: I2C client address for the PMIC + * @reg_address: PMIC register address + * @value: New value for the register bits to change + * @mask: Mask indicating which register bits to change + * + * DSI LCD panels describe an initialization sequence in the i915 VBT (Video + * BIOS Tables) using so called MIPI sequences. One possible element in these + * sequences is a PMIC specific element of 15 bytes. + * + * This function executes these PMIC specific elements sending the embedded + * commands to the PMIC. + * + * Return 0 on success, < 0 on failure. + */ +int intel_soc_pmic_exec_mipi_pmic_seq_element(u16 i2c_address, u32 reg_address, + u32 value, u32 mask) +{ + struct intel_pmic_opregion_data *d; + int ret; + + if (!intel_pmic_opregion) { + pr_warn("%s: No PMIC registered\n", __func__); + return -ENXIO; + } + + d = intel_pmic_opregion->data; + + mutex_lock(&intel_pmic_opregion->lock); + + if (d->exec_mipi_pmic_seq_element) { + ret = d->exec_mipi_pmic_seq_element(intel_pmic_opregion->regmap, + i2c_address, reg_address, + value, mask); + } else if (d->pmic_i2c_address) { + if (i2c_address == d->pmic_i2c_address) { + ret = regmap_update_bits(intel_pmic_opregion->regmap, + reg_address, mask, value); + } else { + pr_err("%s: Unexpected i2c-addr: 0x%02x (reg-addr 0x%x value 0x%x mask 0x%x)\n", + __func__, i2c_address, reg_address, value, mask); + ret = -ENXIO; + } + } else { + pr_warn("%s: Not implemented\n", __func__); + pr_warn("%s: i2c-addr: 0x%x reg-addr 0x%x value 0x%x mask 0x%x\n", + __func__, i2c_address, reg_address, value, mask); + ret = -EOPNOTSUPP; + } + + mutex_unlock(&intel_pmic_opregion->lock); + + return ret; +} +EXPORT_SYMBOL_GPL(intel_soc_pmic_exec_mipi_pmic_seq_element); diff --git a/drivers/acpi/pmic/intel_pmic.h b/drivers/acpi/pmic/intel_pmic.h index 095afc96952e..89379476a1df 100644 --- a/drivers/acpi/pmic/intel_pmic.h +++ b/drivers/acpi/pmic/intel_pmic.h @@ -15,10 +15,14 @@ struct intel_pmic_opregion_data { int (*update_aux)(struct regmap *r, int reg, int raw_temp); int (*get_policy)(struct regmap *r, int reg, int bit, u64 *value); int (*update_policy)(struct regmap *r, int reg, int bit, int enable); + int (*exec_mipi_pmic_seq_element)(struct regmap *r, u16 i2c_address, + u32 reg_address, u32 value, u32 mask); struct pmic_table *power_table; int power_table_count; struct pmic_table *thermal_table; int thermal_table_count; + /* For generic exec_mipi_pmic_seq_element handling */ + int pmic_i2c_address; }; int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle, struct regmap *regmap, struct intel_pmic_opregion_data *d); diff --git a/drivers/acpi/pmic/intel_pmic_chtwc.c b/drivers/acpi/pmic/intel_pmic_chtwc.c index 078b0448f30a..7ffd5624b8e1 100644 --- a/drivers/acpi/pmic/intel_pmic_chtwc.c +++ b/drivers/acpi/pmic/intel_pmic_chtwc.c @@ -231,6 +231,24 @@ static int intel_cht_wc_pmic_update_power(struct regmap *regmap, int reg, return regmap_update_bits(regmap, reg, bitmask, on ? 1 : 0); } +static int intel_cht_wc_exec_mipi_pmic_seq_element(struct regmap *regmap, + u16 i2c_client_address, + u32 reg_address, + u32 value, u32 mask) +{ + u32 address; + + if (i2c_client_address > 0xff || reg_address > 0xff) { + pr_warn("%s warning addresses too big client 0x%x reg 0x%x\n", + __func__, i2c_client_address, reg_address); + return -ERANGE; + } + + address = (i2c_client_address << 8) | reg_address; + + return regmap_update_bits(regmap, address, mask, value); +} + /* * The thermal table and ops are empty, we do not support the Thermal opregion * (DPTF) due to lacking documentation. @@ -238,6 +256,7 @@ static int intel_cht_wc_pmic_update_power(struct regmap *regmap, int reg, static struct intel_pmic_opregion_data intel_cht_wc_pmic_opregion_data = { .get_power = intel_cht_wc_pmic_get_power, .update_power = intel_cht_wc_pmic_update_power, + .exec_mipi_pmic_seq_element = intel_cht_wc_exec_mipi_pmic_seq_element, .power_table = power_table, .power_table_count = ARRAY_SIZE(power_table), }; diff --git a/drivers/acpi/pmic/intel_pmic_xpower.c b/drivers/acpi/pmic/intel_pmic_xpower.c index 2579675b7082..1b49cbb1e21e 100644 --- a/drivers/acpi/pmic/intel_pmic_xpower.c +++ b/drivers/acpi/pmic/intel_pmic_xpower.c @@ -240,6 +240,7 @@ static struct intel_pmic_opregion_data intel_xpower_pmic_opregion_data = { .power_table_count = ARRAY_SIZE(power_table), .thermal_table = thermal_table, .thermal_table_count = ARRAY_SIZE(thermal_table), + .pmic_i2c_address = 0x34, }; static acpi_status intel_xpower_pmic_gpio_handler(u32 function, diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c index f51a116543f7..26835d174939 100644 --- a/drivers/gpu/drm/drm_dp_helper.c +++ b/ |