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ACPI / PMIC: Implement exec_mipi_pmic_seq_element for CHT Whiskey Cove PMIC 

Implement the exec_mipi_pmic_seq_element callback for the CHT Whiskey Cove
PMIC.

On some CHT devices this fixes the LCD panel not lighting up when it was
not initialized by the GOP, because an external monitor was plugged in and
the GOP initialized only the external monitor.

Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190107111556.4510-3-hdegoede@redhat.com
This commit is contained in:
Hans de Goede 2019-01-07 12:15:54 +01:00
parent 7b5618f4b8
commit 4f60168252
1 changed files with 19 additions and 0 deletions
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19
drivers/acpi/pmic/intel_pmic_chtwc.c
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@ -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),
};