Messages in this thread | | | Date | Wed, 3 Dec 2014 12:15:18 +0100 | From | Wolfram Sang <> | Subject | Re: [PATCH v2] i2c: rk3x: fix bug that cause measured high_ns doesn't meet I2C spec |
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> + - rise-ns : Number of nanoseconds the signal takes to rise (t(r) in i2c spec). > + If not specified this is assumed to be the max the spec allows > + (1000 ns for standard mode, 300 ns for fast mode) which might > + cause slightly slower communication. > + - fall-ns : Number of nanoseconds the signal takes to fall (t(f) in the i2c0 > + spec). If not specified this is assumed to be the max the spec > + allows (300 ns) which might cause slightly slower communication.
We already have those bindings from the designware driver:
- i2c-sda-hold-time-ns : should contain the SDA hold time in nanoseconds. - i2c-scl-falling-time : should contain the SCL falling time in nanoseconds. - i2c-sda-falling-time : should contain the SDA falling time in nanoseconds.
Can you reuse them? Or do you really need a specific rise-time property? If so, please matche the style of the bindings above.
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