On Fri, Aug 16, 2013 at 5:06 PM, Loh Tien Hock <thloh@xxxxxxxxxx> wrote: >> On Mon, Jul 29, 2013 at 6:24 PM, Loh Tien Hock <thloh@xxxxxxxxxx> wrote: >>> On Tue, Jul 30, 2013 at 12:11 AM, Linus Walleij >>> We still need to compare the altera_gc->edge_type to the expected ones >>> (so that we don't allow incorrect configuration, eg. the GPIO is >>> configured as rising, but set_type tries to set falling). >>> So we should compare it with magic numbers, instead of custom defines >>> like the example below? >>> if (type == IRQ_TYPE_EDGE_RISING && >>> altera_gc->edge_type == 0) >>> return 0; >> >> And why can't altera_gc->edge_type use exactly the same enumerators so it becomes: >> >> (type == IRQ_TYPE_EDGE_RISING && >> altera_gc->edge_type == IRQ_TYPE_EDGE_RISING) >> >> ? > > We're unable to do that because the tool that generates the dts file > had the number that way, and if we were to change to code to your > suggestion, the tool needs to be changed and it will break backward > compatibility. Sorry? The values used in DTS bindings are decided on the mailing list devicetree@xxxxxxxxxxxxxxx, not by your proprietary tools. This should have been discussed with the apropriate authorities *before* implementing funny tools, DT bindings are not owned or defined by any one company. Please study this binding include: include/dt-bindings/interrupt-controller/irq.h: #define IRQ_TYPE_NONE 0 #define IRQ_TYPE_EDGE_RISING 1 #define IRQ_TYPE_EDGE_FALLING 2 #define IRQ_TYPE_EDGE_BOTH (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING) #define IRQ_TYPE_LEVEL_HIGH 4 #define IRQ_TYPE_LEVEL_LOW 8 Please use this binding, nothing else. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
