On Mon, Mar 02, 2020 at 03:30:35PM +0100, Oliver Graute wrote: > Hello, > > I have on of these FT6336G Touch Panels here and I try to get it work > with the ft6236 driver. It comes up with model identification "0x11". So > I added that identification to the switch case in > edt_ft5x06_ts_identify(). But it crashes directly after the probe with a > corrupted stack. No clue why. Some ideas? > * the identification registers. > + case 0x11: /* EDT EP0110M09 */ I have a question, how do you know it's M09 flavour? > [ 2.232596] i2c i2c-0: LPI2C adapter registered > [ 2.238931] edt_ft5x06 1-0038: probing for EDT FT5x06 I2C > [ 2.244369] edt_ft5x06 1-0038: 1-0038 supply vcc not found, using dummy regulator > [ 2.257639] edt_ft5x06 1-0038: Model "EP0110M09", Rev. "�", 0x0 sensors ...because clearly here something wrong with Revision field. > [ 2.264536] input: EP0110M09 as /devices/platform/bus@5a000000/5a820000.i2c/i2c-1/1-0038/input/input0 > [ 2.273920] edt_ft5x06 1-0038: EDT FT5x06 initialized: IRQ 35, WAKE pin -1, Reset pin -1. > [ 2.282124] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: edt_ft5x06_ts_probe+0x9d4/0xa88 > [ 2.292830] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.6.0-rc1-next-20200214-00051-g9874f196742d #69 > [ 2.302224] Hardware name: Advantech iMX8QM DMSSE20 (DT) > [ 2.307544] Workqueue: events deferred_probe_work_func > [ 2.312686] Call trace: > [ 2.315141] dump_backtrace+0x0/0x1c0 > [ 2.318802] show_stack+0x14/0x20 > [ 2.322124] dump_stack+0xb4/0xfc > [ 2.325440] panic+0x158/0x320 > [ 2.328494] print_tainted+0x0/0xa8 > [ 2.331978] edt_ft5x06_ts_probe+0x9d4/0xa88 -- With Best Regards, Andy Shevchenko
