Is anyone else seeing this? I am running the Linux 4.9.0-rc3 kernel with the included ath9k wireless pcie device driver. I never see the device driver interupt handler called (ath_isr()). The interrupt is requested with:
request_irq(pdev->irq, ath_isr, IRQF_SHARED, "ath9k", sc); // With pdev->irq == 321.
/proc/interrupts shows the following:
CPU0
16: 2607 GIC-0 29 Edge twd
17: 0 GPC 55 Level i.MX Timer Tick
20: 0 GPC 120 Level mx6-pcie-msi
42: 0 GPC 81 Level 20c0000.wdog
43: 0 GPC 49 Level imx_thermal
48: 0 GPC 19 Level rtc alarm
53: 8 GPC 2 Level sdma
54: 1034 GPC 118 Level 2188000.ethernet
55: 0 GPC 119 Level 2188000.ethernet
56: 52 GPC 22 Level mmc0
57: 7235 GPC 24 Level mmc1
58: 144 GPC 36 Level 21a0000.i2c
59: 403 GPC 37 Level 21a4000.i2c
60: 458 GPC 38 Level 21a8000.i2c
61: 0 GPC 35 Level 21f8000.i2c
63: 1 GPC 27 Level 21e8000.serial
64: 199 GPC 30 Level 21f4000.serial
151: 0 gpio-mxc 22 Edge msp_nInt
167: 15 gpio-mxc 6 Level 1-0053
168: 0 gpio-mxc 7 Edge tether_sense
171: 0 gpio-mxc 10 Edge battery_inserted
172: 0 gpio-mxc 11 Edge reset_button
208: 1 gpio-mxc 15 Level FPGA
213: 0 gpio-mxc 20 Edge wakeup
289: 0 PCI-MSI 0 Edge PCIe PME
321: 0 GPC 123 Level ath9k
Err: 0
The imx6 dts file declares the pcie interrupt-map with GIC_SPI of 123.
GPC isr mask reg for interrupt 155 is clear - 0x020DC014 (0x76f6b014): 0xF63FFFFF
Does the Linux kernel for the imx6 support legacy interrupts? Can someone please confirm?
Thanks for any help!!
