void set_voltage(uint32_t value)
{
int i;
g_voltage = value;
if (!value) {
writel(0x7, &sft->reg);
return;
}
/* Reset */
writel(0, &sft->reg);
/* The power chip datasheet is here:
* http://www.onsemi.com/pub_link/Collateral/ADP3208D.PDF
* The high 16bits is the value*/
/* Set shifter to xx */
for (i = 0; i < 5; i++) {
writel(value | 0x1, &sft->reg);
shift_done();
}
/* Shift to reg */
for (i = 0; i < 5; i++) {
writel(0x2, &sft->reg);
shift_done();
}
/* Output enable, low active */
writel(0x3, &sft->reg);
}
void set_voltage(uint32_t value)
{
int i;
if (g_voltage == value)
return;
g_voltage = value;
if (value == 0x8f00) {
writel(0x7, &sft->reg);
delay(VOLTAGE_DELAY);
return;
}
/* Reset */
writel(0, &sft->reg);
/* The power chip datasheet is here:
* http://www.onsemi.com/pub_link/Collateral/ADP3208D.PDF
* REV_BITS((VALUE < 1) & 1) << 16: is the value, the */
/* Set shifter to xx */
for (i = 0; i < 5; i++) {
writel(value | 0x1, &sft->reg);
shift_done();
}
/* Shift to reg */
for (i = 0; i < 5; i++) {
writel(0x2, &sft->reg);
shift_done();
}
/* Output enable, low active */
writel(0x3, &sft->reg);
delay(VOLTAGE_DELAY);
}