On 09/23/2013 04:01 PM, Rhyland Klein wrote: > On 9/23/2013 5:53 PM, Stephen Warren wrote: >> On 09/19/2013 10:18 AM, Rhyland Klein wrote: >>> Adding driver support for bq24735 charger chipset. >> >>> diff --git a/Documentation/devicetree/bindings/power_supply/ti,bq24735.txt b/Documentation/devicetree/bindings/power_supply/ti,bq24735.txt >>> + - ti,charge-current : Used to control and set the charging current. This value >>> + must follow the below guidelines: >>> + bit 0 - 5: Not used >>> + bit 6: 1 = Adds 64mA of charger current >>> + bit 7: 1 = Adds 128mA of charger current >>> + bit 8: 1 = Adds 256mA of charger current >>> + bit 9: 1 = Adds 512mA of charger current >>> + bit 10: 1 = Adds 1024mA of charger current >>> + bit 11: 1 = Adds 2048mA of charger current >>> + bit 12: 1 = Adds 4096mA of charger current >>> + bit 13 - 15: Not used >> >> That's a little odd. Why not just put the number of mA directly into the >> property unshifted? > > This is how the hw register is defined, its the literal number of mA. > This is cleaned up in the upcoming revision. OK. If you still want to use the raw register encoding, which seems reasonable, why not just say: ti,charge-current: Value for charge current register as described in the HW documentation. >>> + Setting the value to < 128mA or > 8.128A terminates charging. >> >> "terminates charging" is a driver action, not a description of HW. It's >> fine to say that what min/max value should be specified in the property >> for it to be valid, but not what action SW should take in response to that. > > This isn't sw. This is defined in the HW documentation as to what > happens if an invalid value is used. OK, if the HW documentation already says that, I don't see the need for the DT binding to also say it; I would suggest just removing that text. -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
