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pmic:i2c: Handle PMIC I2C transmission comprising of two bytes

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This patch adds support for proper handling of a PMIC I2C transmission
comprising of two bytes.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Łukasz Majewski 2012-11-13 03:21:52 +00:00 committed by Anatolij Gustschin
parent a6d0f62a0c
commit b5bf9cafea
1 changed files with 8 additions and 1 deletions
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9
drivers/misc/pmic_i2c.c
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@ -44,6 +44,10 @@ int pmic_reg_write(struct pmic *p, u32 reg, u32 val)
buf[1] = (val >> 8) & 0xff;
buf[2] = val & 0xff;
break;
case 2:
buf[0] = (val >> 8) & 0xff;
buf[1] = val & 0xff;
break;
case 1:
buf[0] = val & 0xff;
break;
@ -73,6 +77,9 @@ int pmic_reg_read(struct pmic *p, u32 reg, u32 *val)
case 3:
ret_val = buf[0] << 16 | buf[1] << 8 | buf[2];
break;
case 2:
ret_val = buf[0] << 8 | buf[1];
break;
case 1:
ret_val = buf[0];
break;
@ -88,7 +95,7 @@ int pmic_reg_read(struct pmic *p, u32 reg, u32 *val)
int pmic_probe(struct pmic *p)
{
I2C_SET_BUS(p->bus);
debug("PMIC:%s probed!\n", p->name);
debug("Bus: %d PMIC:%s probed!\n", p->bus, p->name);
if (i2c_probe(pmic_i2c_addr)) {
printf("Can't find PMIC:%s\n", p->name);
return -1;