HI TI:
THE SMPS3 of TPS65917 is use for VDD_GPU of TDA2E,
and i need increase the voltage of VDD_GPU about 50mv,
How do I achieve this?
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HI TI:
THE SMPS3 of TPS65917 is use for VDD_GPU of TDA2E,
and i need increase the voltage of VDD_GPU about 50mv,
How do I achieve this?
Hi,
You can try changing the regulator-min-microvolt to the value you want to program. The framework should take care of setting the minimum voltage.
Or else you can use the U-Boot i2c md commands to program the value that you want.
- Keerthy
Hi,
Thanks for your reply.
I still have some questions as flow,
The default setting of <regulator-min-microvolt> is 850000,
<regulator-max-microvolt> default value is 1250000 in dts;
The value of VDD_GPU is 1.16v actually measure by multimeter.
Then set the <regulator-min-microvolt> from 850000 to 1200000,
the value of VDD_GPU is still 1.16v. Why it seems useless only change the min-microvolt?
Unless i Set <regulator-min-microvolt> to be equal to <regulator-min-microvolt>,as flow,
the value of VDD_GPU will be about 1.2v.
Hi Michael,
Unless i Set <regulator-min-microvolt> to be equal to <regulator-min-microvolt>,as flow,
That is one good way to do that. The easiest way in fact.
The value of VDD_GPU is 1.16v actually measure by multimeter.
Then set the <regulator-min-microvolt> from 850000 to 1200000,
the value of VDD_GPU is still 1.16v. Why it seems useless only change the min-microvolt?
I can say may be driver has its own minimum data that is getting over-ridden. If this is for one time setting then what you have done with both min/max at 1.2V is correct.
- Keerthy