[U-Boot] [PATCH 10/16] pmic:max8997: Function for calculating LDO internal register value

[Lukasz Majewski]

Function for calculating LDO internal register value from passed micro
Volt.

Signed-off-by: Lukasz Majewski <l.majewski at samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
Cc: Stefano Babic <sbabic at denx.de>
---
 drivers/misc/pmic_max8997.c |   17 +++++++++++++++++
 1 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/drivers/misc/pmic_max8997.c b/drivers/misc/pmic_max8997.c
index 4e8283a..a4158e2 100644
--- a/drivers/misc/pmic_max8997.c
+++ b/drivers/misc/pmic_max8997.c
@@ -42,3 +42,20 @@ int pmic_init(unsigned char bus)
 
 	return 0;
 }
+
+unsigned char max8997_reg_ldo(int uV)
+{
+	unsigned char ret;
+	if (uV <= 800000)
+		return 0;
+	if (uV >= 3950000)
+		return 0x3f;
+	ret = (uV - 800000) / 50000;
+	if (ret > 0x3f) {
+		printf("MAX8997 LDO SETTING ERROR (%duV) -> %u\n", uV, ret);
+		ret = 0x3f;
+	}
+
+	return ret;
+}
+
-- 
1.7.2.3