Hello Ferruh On Mon, Jan 4, 2016 at 12:46 PM, rajeev kumar <rajeevkumar.linux@xxxxxxxxx> wrote: > Hello Ferruh, > > I was going through exiting cypress touch screen driver > (drivers/input/touchscreen/cyttsp4_core.c). Driver copy write suggest > that it supports TMA4XX and TMA1036 cypress touch part. Is there any > planning to extend the support for tma884 part ? > In fact , support for tma884 part exit in android version of the code > for v3.0.31 Linux kernel. I've gone ahead and tried to review the > current version of the `cyttsp4*` sources in v4.3 relative to the > version present in > Android(https://android.googlesource.com/kernel/omap) and there are a > lot of similarities between these two versions of the drivers. It > looks to me that the version in v4.3 is a cleaned up fork of the older > version contained in Android. I understand that these two versions of > the driver may have both been targeted at different Cypress touch > screen controller part numbers. But based on what I've been reading, > both of these parts appear to be more closely related/in the same > product family than not and so should use a common driver. > So my question is: > 1. Is there any planning to extend support for cypress tma884 part in > existing cypress touch screen driver i.e in > drivers/input/touchscreen/cyttsp4_core.c ? or > 2. may be with minor changes, can I re-use the same driver for tma884 > part ? Please suggest. Continuation to the last mail, doing more post-mortem analysis for the code base, drivers/input/touchscreen/cyttsp4_core.c ( v4.3 kernel: support TMA4XX and TMA1036 cypress touch part) and android code base, https://android.googlesource.com/kernel/omap ( Supports CY8CTMA398 and CY8CTMA884 cypress touch part). I don't have the specification for TMA4XX device families but by looking/comparing code, my analysis suggest that I can use drivers/input/touchscreen/cyttsp4_core.c (v4.3 kernel) also for cypress touch part CY8CTMA884 as it is. Could you please strengthen my understanding ? TIA Best Regards Rajeev > > TIA > > Best Regards > Rajeev -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
