Hello Wolfram, On 12/08/15 10:43, ext Wolfram Sang wrote: >> > My opinion - it's time for compatible string :) "ti,keystone-i2c". >> > Especially taking int account two things: >> > 1) In Datasheet SPRS893B TCI6630K2L Multicore DSP+ARM KeyStone II >> > System-on-Chip (SoC) (Rev. E) >> > values for those registers specified as: >> > 0x0034 ICPID1 I2C Peripheral Identification Register 1 [value: 0x0000 >> > 0105] >> > 0x0038 ICPID2 I2C Peripheral Identification Register 2 [value: 0x0000 >> > 0005] >> > (actually the same is in k2h, k2e Datasheets). >> > >> > 2) This is not the first time such discussion has been raised. >> > >> > >>>>> > >> > This is not really critical fix. Currently bus rate is lower than >>>>> > >> > expected because of these >>>>> > >> > calculation errors. The fix maximizes the bus rate. So newer SoCs >>>>> > >> > will run little bit slower >>>>> > >> > until support is added to this part of the code. Not really >>>>> > >> > critical. >> > >> > Regarding the patch itself: >> > - Seems the "d" value is fixed to 6 as per User Guide SPRUGV3 >> > "KeyStone Architecture 2 Inter-IC Control Bus (I2C)" and this change is >> > correct. >> > It would be nice to have ref on document in commit message as above. >> > >> > - I think, it will be very useful to have same real digits/calculation >> > mentioned in >> > commit message which can show how valuable is the improvement. > Alexander, any comments to this feedback?
I would need to rework the patch to distinguish Keystones basing on DT compatible property. I will re-send another version along with actual bofore-after real world numbers. Thanks for feedback! -- Best regards, Alexander Sverdlin. -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
