* Keerthy <j-keerthy@xxxxxx> [180925 05:18]: > I tried Branch [1] above. AM335x-boneblack is doing all good with ds0. > AM437x-gp the following is happening: > > https://pastebin.ubuntu.com/p/fmZNYgJ9Sp/ > > There seems to be a timeout due to which resume is not immediate i see > 1-2s delay and i see i2c timeout. > > [ 402.247271] omap_i2c 4802a000.i2c: controller timed out > [ 402.247441] pixcir_ts 1-005c: pixcir_int_enable: can't read reg 0x34 > : -110 > [ 402.247486] pixcir_ts 1-005c: Failed to disable interrupt generation: > -110 > [ 402.247522] pixcir_ts 1-005c: Failed to stop > [ 402.247607] dpm_run_callback(): pixcir_i2c_ts_resume+0x0/0x98 > [pixcir_i2c_ts] returns -110 > > so pixcir_i2c_ts_resume is retuning -110 which is timeout error code. > > I did some touch screen testing after DS0 resume seems to be working. > Everything is in pastebin link provided above. Thanks for testing. Hmm no idea what might be going on with the pixcir. I have edt-ft5x06 on the am437x-sk-evm and that behaves just fine for suspend and resume. Both are on i2c1, pixcir calls pixcir_start/stop from suspend and resume while edt-ft5x06 does not reconfigure anything. I'll try read some edt-ft5x06 register values on suspend and resume, let's see if that makes it reproducable here. Regards, Tony
