X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fpower%2Fpmic%2Fpmic_max77686.c;h=d4c430e22ed144dfbbf6243a07a0eab7dec861ad;hb=4913fc23f0b19a82e2e9cc56f7ee0087839855c4;hp=7fcb4c0bea1454b613d5906d73d021d876af4ba9;hpb=1199c377cf14c240b903e351ab02b3b2cd3800c6;p=u-boot

diff --git a/drivers/power/pmic/pmic_max77686.c b/drivers/power/pmic/pmic_max77686.c
index 7fcb4c0bea..d4c430e22e 100644
--- a/drivers/power/pmic/pmic_max77686.c
+++ b/drivers/power/pmic/pmic_max77686.c
@@ -2,23 +2,7 @@
  *  Copyright (C) 2012 Samsung Electronics
  *  Rajeshwari Shinde <rajeshwari.s@samsung.com>
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
@@ -30,6 +14,198 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+static const char max77686_buck_addr[] = {
+	0xff, 0x10, 0x12, 0x1c, 0x26, 0x30, 0x32, 0x34, 0x36, 0x38
+};
+
+static unsigned int max77686_ldo_volt2hex(int ldo, ulong uV)
+{
+	unsigned int hex = 0;
+
+	switch (ldo) {
+	case 1:
+	case 2:
+	case 6:
+	case 7:
+	case 8:
+	case 15:
+		hex = (uV - 800000) / 25000;
+		break;
+	default:
+		hex = (uV - 800000) / 50000;
+	}
+
+	if (hex >= 0 && hex <= MAX77686_LDO_VOLT_MAX_HEX)
+		return hex;
+
+	debug("%s: %ld is wrong voltage value for LDO%d\n", __func__, uV, ldo);
+	return 0;
+}
+
+int max77686_set_ldo_voltage(struct pmic *p, int ldo, ulong uV)
+{
+	unsigned int val, ret, hex, adr;
+
+	if (ldo < 1 && ldo > 26) {
+		printf("%s: %d is wrong ldo number\n", __func__, ldo);
+		return -1;
+	}
+
+	adr = MAX77686_REG_PMIC_LDO1CTRL1 + ldo - 1;
+	hex = max77686_ldo_volt2hex(ldo, uV);
+
+	if (!hex)
+		return -1;
+
+	ret = pmic_reg_read(p, adr, &val);
+	if (ret)
+		return ret;
+
+	val &= ~MAX77686_LDO_VOLT_MASK;
+	val |= hex;
+	ret |= pmic_reg_write(p, adr, val);
+
+	return ret;
+}
+
+int max77686_set_ldo_mode(struct pmic *p, int ldo, char opmode)
+{
+	unsigned int val, ret, adr, mode;
+
+	if (ldo < 1 && 26 < ldo) {
+		printf("%s: %d is wrong ldo number\n", __func__, ldo);
+		return -1;
+	}
+
+	adr = MAX77686_REG_PMIC_LDO1CTRL1 + ldo - 1;
+
+	/* mode */
+	switch (opmode) {
+	case OPMODE_OFF:
+		mode = MAX77686_LDO_MODE_OFF;
+		break;
+	case OPMODE_STANDBY:
+		switch (ldo) {
+		case 2:
+		case 6:
+		case 7:
+		case 8:
+		case 10:
+		case 11:
+		case 12:
+		case 14:
+		case 15:
+		case 16:
+			mode = MAX77686_LDO_MODE_STANDBY;
+			break;
+		default:
+			mode = 0xff;
+		}
+		break;
+	case OPMODE_LPM:
+		mode = MAX77686_LDO_MODE_LPM;
+		break;
+	case OPMODE_ON:
+		mode = MAX77686_LDO_MODE_ON;
+		break;
+	default:
+		mode = 0xff;
+	}
+
+	if (mode == 0xff) {
+		printf("%s: %d is not supported on LDO%d\n",
+		       __func__, opmode, ldo);
+		return -1;
+	}
+
+	ret = pmic_reg_read(p, adr, &val);
+	if (ret)
+		return ret;
+
+	val &= ~MAX77686_LDO_MODE_MASK;
+	val |= mode;
+	ret |= pmic_reg_write(p, adr, val);
+
+	return ret;
+}
+
+int max77686_set_buck_mode(struct pmic *p, int buck, char opmode)
+{
+	unsigned int val, ret, mask, adr, size, mode, mode_shift;
+
+	size = ARRAY_SIZE(max77686_buck_addr);
+	if (buck >= size) {
+		printf("%s: %d is wrong buck number\n", __func__, buck);
+		return -1;
+	}
+
+	adr = max77686_buck_addr[buck];
+
+	/* mask */
+	switch (buck) {
+	case 2:
+	case 3:
+	case 4:
+		mode_shift = MAX77686_BUCK_MODE_SHIFT_2;
+		break;
+	default:
+		mode_shift = MAX77686_BUCK_MODE_SHIFT_1;
+	}
+
+	mask = MAX77686_BUCK_MODE_MASK << mode_shift;
+
+	/* mode */
+	switch (opmode) {
+	case OPMODE_OFF:
+		mode = MAX77686_BUCK_MODE_OFF;
+		break;
+	case OPMODE_STANDBY:
+		switch (buck) {
+		case 1:
+		case 2:
+		case 3:
+		case 4:
+			mode = MAX77686_BUCK_MODE_STANDBY << mode_shift;
+			break;
+		default:
+			mode = 0xff;
+		}
+		break;
+	case OPMODE_LPM:
+		switch (buck) {
+		case 2:
+		case 3:
+		case 4:
+			mode = MAX77686_BUCK_MODE_LPM << mode_shift;
+			break;
+		default:
+			mode = 0xff;
+		}
+		break;
+	case OPMODE_ON:
+		mode = MAX77686_BUCK_MODE_ON << mode_shift;
+		break;
+	default:
+		mode = 0xff;
+	}
+
+	if (mode == 0xff) {
+		printf("%s: %d is not supported on BUCK%d\n",
+		       __func__, opmode, buck);
+		return -1;
+	}
+
+	ret = pmic_reg_read(p, adr, &val);
+	if (ret)
+		return ret;
+
+	val &= ~mask;
+	val |= mode;
+	ret |= pmic_reg_write(p, adr, val);
+
+	return ret;
+}
+
 int pmic_init(unsigned char bus)
 {
 	static const char name[] = "MAX77686_PMIC";