15 Jun, 2009
3 commits
-
On Thu, May 28, 2009 at 10:59 AM, Mark Brown wrote:
> On Thu, May 28, 2009 at 07:15:16AM +0200, Philipp Zabel wrote:
>> The V3 regulator can be configured with an external resistor
>> connected to the feedback pin (R24 in the data sheet) to
>> increase the voltage range.
>>
>> For example, hx4700 has R24 = 3.32 kOhm to achieve a maximum
>> V3 voltage of 1.55 V which is needed for 624 MHz CPU frequency.
>>
>> Signed-off-by: Philipp Zabel
>
> Looks good.
>
> Acked-by: Mark BrownThanks, but it turns out I hit a 32 bit integer overflow in
the gain calculation. I'd like to mend that with the following
patch. Now max_uV could be increased up to 4.294 V, enough to
charge LiPo cells.Signed-off-by: Philipp Zabel
Acked-by: Robert Jarzmik
Signed-off-by: Liam Girdwood -
The V3 regulator can be configured with an external resistor
connected to the feedback pin (R24 in the data sheet) to
increase the voltage range.For example, hx4700 has R24 = 3.32 kOhm to achieve a maximum
V3 voltage of 1.55 V which is needed for 624 MHz CPU frequency.Signed-off-by: Philipp Zabel
Acked-by: Mark Brown
Acked-by: Robert Jarzmik
Signed-off-by: Liam Girdwood -
The Maxim 1586 regulator is a voltage regulator with 2
voltage outputs, specially suitable for Marvell PXA
chips. One output is in the range of required VCC_CORE by
the PXA27x chips, the other in the VCC_USIM required as well
by PXA27x chips.The chip is controlled through the I2C bus.
Signed-off-by: Robert Jarzmik
Acked-by: Mark Brown
Signed-off-by: Liam Girdwood
