Messages in this thread | | | Subject | regulator: tps6586x: What is the meaning of TPS6586X_SLEW_RATE_SET setting? | From | Axel Lin <> | Date | Tue, 19 Jun 2012 19:15:22 +0800 |
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Hi Mike, While looking at the datasheet (tps65860 and tps65862), I don't understand why we have TPS6586X_SLEW_RATE_SET (0x08) in the code.
According to the datasheet, BIT3 of SM1SL/SM0SL is not used:
SM1SL [Addr 0x25] SM0SL [Addr 0x28] BIT[2:0] SM0/SM1 SUPPLY RAMP RATE BIT[7:3] NOT USED
So why we need to check the "unused bit" in tps6586x_regulator_set_slew_rate()?
if (!(setting->slew_rate & TPS6586X_SLEW_RATE_SET)) return 0;
Regards, Axel
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