Function for calculating LDO internal register value from passed micro Volt.
Signed-off-by: Lukasz Majewski l.majewski@samsung.com Signed-off-by: Kyungmin Park kyungmin.park@samsung.com Cc: Stefano Babic sbabic@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; +} +