+
+/**
+ * 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 {
+ 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);