Hi Sebastian, On Monday 24 November 2014 05:21 PM, Sebastian Andrzej Siewior wrote: > * Vignesh R | 2014-11-14 10:37:25 [+0530]: > >> This series of patches fix TSC defects related to lag in touchscreen >> performance and cursor jump at touch release. The lag was result of >> udelay in TSC interrupt handler. Cursor jump due to false pen-up event. >> The patches implement Advisory 1.0.31 in silicon errata of am335x-evm > am335x not -evm. The am335x-evm is a board (with its own advisory > document) built around the SoC. > > Just testing the v4. I can use now IIO and touchscren at the same time. > back at v1 I reported that it does not work, this has been fixed now. > I had it running for a few minutes, now I see one of WARN_ON() beeing > triggered (I've cut a few numbers so don't wonder about PID 2 and so on): > I fixed the issue that was triggering the WARN_ON(). I think it would be better if you tested these patches, before I posted them on the mainline. I don't want to clutter the list with too main versions. Here is the link to the tree with latest changes: git clone -b tsc-devel git://git.ti.com/kernel/tsc-adc.git (tsc-devel branch) Please test the above tree and let me know the results. I will post new version(v5) if there are no issues wrt IIO and TSC working at the same time. The cursor jump at touch release has been fixed. But I do see random cursor movement when dragging on the screen. This is not due to false pen-up events. My patches do not aim at fixing them. (the aim is to remove udelay in irq handler and fix false pen-ups). With these changes, false pen-ups have been eliminated and there is a significant improvement in the performance of TSC. I feel these patches can go in, if there are no other serious issues. I will work on random cursor jump in a separate patch series. Regards Vignesh -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
