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authorHans de Goede <hdegoede@redhat.com>2019-01-07 12:15:54 +0100
committerHans de Goede <hdegoede@redhat.com>2019-01-09 10:35:03 +0100
commit4f6016825237740257847eccd2bf446dac72182a (patch)
tree0463ab2c00c5ec413e3c46c78feca81420933229 /drivers
parent7b5618f4b834330a052958db934c3dffad4a15c2 (diff)
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
Diffstat (limited to 'drivers')
-rw-r--r--drivers/acpi/pmic/intel_pmic_chtwc.c19
1 files changed, 19 insertions, 0 deletions
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),
};