On Fri, 25 Nov 2016, Mugunthan V N wrote: > Hi Dmitry Torokhov, > > On Thursday 10 November 2016 10:05 PM, Mugunthan V N wrote: > > This patch series enables ADC to be clocked at 24MHz as the > > TI AM335x ADC driver has already adopted to use DMA to transfer > > ADC samples. Now ADC can generated upto 800K Samples per second > > with the patch [1] on AM335x BBB and AM437x GP EVM. > > > > when ADC ref clock is set at 24MHz, I am seeing some issue with > > touch screen pointer as the pointer jumps to random locations > > with free draw application. The issue is due to increase in ADC > > clock and charge delay for the touchscreen ADC line duration > > reduced. > > > > So the notation of ti,charge-delay in terms of ADC clock is > > wrong, it has to be represented in time and driver has to convert > > the charge delay time to ADC clocks based on what ADC clock > > frequency is set. > > > > Measured the performance with the iio_generic_buffer with the > > patch [2] applied > > > > Verified the touch screen on AM335x GP EVM and AM335x BBB LCD7 > > cape with [3] dts for display and touch screen to work. > > > > Since there are acks from DT and MFD maintainers, can you pull the patch > series if you do not have any more comments. Cant do anything without *all* Acks. -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- 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
