+#if defined(CONFIG_POWER)
+#ifdef CONFIG_POWER_MAX77686
+static int pmic_reg_update(struct pmic *p, int reg, uint regval)
+{
+ u32 val;
+ int ret = 0;
+
+ ret = pmic_reg_read(p, reg, &val);
+ if (ret) {
+ debug("%s: PMIC %d register read failed\n", __func__, reg);
+ return -1;
+ }
+ val |= regval;
+ ret = pmic_reg_write(p, reg, val);
+ if (ret) {
+ debug("%s: PMIC %d register write failed\n", __func__, reg);
+ return -1;
+ }
+ return 0;
+}
+
+static int max77686_init(void)
+{
+ struct pmic *p;
+
+ if (pmic_init(I2C_PMIC))
+ return -1;
+
+ p = pmic_get("MAX77686_PMIC");
+ if (!p)
+ return -ENODEV;
+
+ if (pmic_probe(p))
+ return -1;
+
+ if (pmic_reg_update(p, MAX77686_REG_PMIC_32KHZ, MAX77686_32KHCP_EN))
+ return -1;
+
+ if (pmic_reg_update(p, MAX77686_REG_PMIC_BBAT,
+ MAX77686_BBCHOSTEN | MAX77686_BBCVS_3_5V))
+ return -1;
+
+ /* VDD_MIF */
+ if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK1OUT,
+ MAX77686_BUCK1OUT_1V)) {
+ debug("%s: PMIC %d register write failed\n", __func__,
+ MAX77686_REG_PMIC_BUCK1OUT);
+ return -1;
+ }
+
+ if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK1CRTL,
+ MAX77686_BUCK1CTRL_EN))
+ return -1;
+
+ /* VDD_ARM */
+ if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK2DVS1,
+ MAX77686_BUCK2DVS1_1_3V)) {
+ debug("%s: PMIC %d register write failed\n", __func__,
+ MAX77686_REG_PMIC_BUCK2DVS1);
+ return -1;
+ }
+
+ if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK2CTRL1,
+ MAX77686_BUCK2CTRL_ON))
+ return -1;
+
+ /* VDD_INT */
+ if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK3DVS1,
+ MAX77686_BUCK3DVS1_1_0125V)) {
+ debug("%s: PMIC %d register write failed\n", __func__,
+ MAX77686_REG_PMIC_BUCK3DVS1);
+ return -1;
+ }
+
+ if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK3CTRL,
+ MAX77686_BUCK3CTRL_ON))
+ return -1;
+
+ /* VDD_G3D */
+ if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK4DVS1,
+ MAX77686_BUCK4DVS1_1_2V)) {
+ debug("%s: PMIC %d register write failed\n", __func__,
+ MAX77686_REG_PMIC_BUCK4DVS1);
+ return -1;
+ }
+
+ if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK4CTRL1,
+ MAX77686_BUCK3CTRL_ON))
+ return -1;
+
+ /* VDD_LDO2 */
+ if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO2CTRL1,
+ MAX77686_LD02CTRL1_1_5V | EN_LDO))
+ return -1;
+
+ /* VDD_LDO3 */
+ if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO3CTRL1,
+ MAX77686_LD03CTRL1_1_8V | EN_LDO))
+ return -1;
+
+ /* VDD_LDO5 */
+ if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO5CTRL1,
+ MAX77686_LD05CTRL1_1_8V | EN_LDO))
+ return -1;
+
+ /* VDD_LDO10 */
+ if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO10CTRL1,
+ MAX77686_LD10CTRL1_1_8V | EN_LDO))
+ return -1;
+
+ return 0;
+}
+#endif /* CONFIG_POWER_MAX77686 */
+
+int exynos_power_init(void)
+{
+ int ret = 0;
+
+#ifdef CONFIG_POWER_MAX77686
+ ret = max77686_init();
+ if (ret)
+ return ret;
+#endif
+#ifdef CONFIG_POWER_TPS65090
+ /*
+ * The TPS65090 may not be in the device tree. If so, it is not
+ * an error.
+ */
+ ret = tps65090_init();
+ if (ret == 0 || ret == -ENODEV)
+ return 0;
+#endif
+
+ return ret;
+}
+#endif /* CONFIG_POWER */
+