Hi at all, the current logs shows me, that something else is missing here. The spi irq is one of the issues I will try to solve today Looking at the read_regmap() where it reads its device id, I do not understand why it gots only an ID of 0xffff ! I have (silly or not), added a case for 0xffff in the next switch statements but anyway this seems not okay. I do not know what else (other than the wrong or missing spi irq, which is currently only -1) [ 2.427561] ALSA device list: [ 5.503750] sst-acpi 80860F28:00: No matching ASoC machine driver found [ 5.544365] pxa2xx-spi 80860F0E:00: no DMA channels available, using PIO [ 5.544449] pxa2xx-spi 80860F0E:00: registered master spi32766 (dynamic) [ 5.544646] spi spi-WM510205:00: 8333333 Hz actual, PIO [ 5.544653] spi spi-WM510205:00: setup mode 0, 8 bits/w, 8000000 Hz max --> 0 [ 5.544717] spi spi-WM510205:00: checking WM510205 with bmp180 [ 5.544723] spi spi-WM510205:00: checking WM510205 with bmp181 [ 5.544728] spi spi-WM510205:00: modalias WM510205 in id_table not found, returns NULL [ 5.544752] arizona spi-WM510205:00: arizona_acpi_get_type(), than via spi_get_device_id(). [ 5.544758] arizona spi-WM510205:00: arizona_acpi_get_type matched [ 5.544763] arizona spi-WM510205:00: using 1 as type for arizona audio codec [ 5.544767] arizona spi-WM510205:00: regmap set to wm5102_spi [ 5.545559] arizona spi-WM510205:00: spi_irq = -1 [ 5.545565] arizona spi-WM510205:00: acpi_dev_add_driver_gpios arizona_acpi_gpios added done, 0 [ 5.545570] arizona spi-WM510205:00: arizona_spi_probe done, calling arizona_dev_init [ 5.545574] arizona spi-WM510205:00: dev_set_drvdata done for 1 [ 5.545578] arizona spi-WM510205:00: arizona_of_get_core_pdata for 1 [ 5.545583] arizona spi-WM510205:00: regcache_cache_only for 1 set [ 5.545587] arizona spi-WM510205:00: added wm5102_core_supplies for 1 [ 5.545841] arizona spi-WM510205:00: mfd_add_devices done for 1 [ 5.545849] spi-WM510205:00 supply AVDD not found, using dummy regulator [ 5.545888] spi-WM510205:00 supply DBVDD1 not found, using dummy regulator [ 5.545919] arizona spi-WM510205:00: devm_regulator_bulk_get done for 1 [ 5.545924] LDO1: supplied by regulator-dummy [ 5.545973] arizona spi-WM510205:00: regulator_get done for 1 [ 5.546036] arizona spi-WM510205:00: (ACPI) using irq_gpio GPIO = 146 [ 5.546050] arizona spi-WM510205:00: devm_gpio_request_one done for request reset: 0 [ 5.546057] arizona spi-WM510205:00: regulator_bulk_enable done, enable core supplies: 0 [ 5.551362] arizona spi-WM510205:00: regulator_enable done, enable DCVDD: 0 [ 5.562754] arizona spi-WM510205:00: arizona_disabe_reset [ 5.562766] arizona spi-WM510205:00: regcache_cache_only [ 5.565842] arizona spi-WM510205:00: regmap_read : read ID register, return value: 0 [ 5.565852] arizona spi-WM510205:00: found device ID: ffff [ 5.609712] arizona spi-WM510205:00: WM5102 revision H [ 5.637683] arizona spi-WM510205:00: Polling reg 23 timed out: ffff [ 5.637953] arizona spi-WM510205:00: arizona_dev_init : Failed to apply hardware patch: -110 [ 5.670927] arizona: probe of spi-WM510205:00 failed with error -110 [ 5.670945] pxa2xx-spi 80860F0E:00: registered child spi-WM510205:00 [ 5.728336] intel_sst_acpi 80860F28:00: No matching machine driver found any ideas or what I can do next to find out was is the root issue here? Question about the spi-irq to clarify it for me: does this spi irq device belongs to the arizona child (the wm5102) or is this irq only of the spi master ? I much as I understand, this irq is from the spi master, the arizona spi child , the wm510205, has another irq , attachted at the irq_gpio - I am right so far?? in some previous mails it was mentioned, that I should or _must_ use and irqchip handler? still encouraged to get this device working as expected :) cheers chris -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html