[Letux-kernel] MIPS: CI20: DTS: Add IW8103 Wifi + bluetooth

[Alexandre GRIVEAUX]

On Tue, Dec 10, 2019 at 12:28:01PM +0100, H. Nikolaus Schaller wrote:
> Hi Alexandre,
Hi Nikolaus,

> I have seen your patch in v5.5-rc1 and now I am
> trying to make it work.
> 
> I have added
> 
> CONFIG_BT_HCIUART_SERDEV=y
> CONFIG_BT_HCIUART_BCM=y
> CONFIG_SERIAL_DEV_BUS=m
> 
> to my defconfig and the driver for serdev and bluetooth
> seems to be loaded:
> 
> root at letux:~# lsmod
> Module                  Size  Used by
> hci_uart               32259  3
> btbcm                   8796  1 hci_uart
> serdev                 10315  1 hci_uart
> bluetooth             366991  11 hci_uart,btbcm
> ecdh_generic            3419  1 bluetooth
> ecc                    20886  1 ecdh_generic
> g_ether                 5373  0
> usb_f_rndis            17648  1 g_ether
> u_ether                14794  2 g_ether,usb_f_rndis
> libcomposite           48158  2 g_ether,usb_f_rndis
> configfs               33740  3 usb_f_rndis,libcomposite
> drm_kms_helper        190773  0
> cfbfillrect             3316  1 drm_kms_helper
> syscopyarea             2754  1 drm_kms_helper
> cfbimgblt               2140  1 drm_kms_helper
> sysfillrect             3338  1 drm_kms_helper
> sysimgblt               2140  1 drm_kms_helper
> fb_sys_fops             1803  1 drm_kms_helper
> cfbcopyarea             2786  1 drm_kms_helper
> drm                   481117  1 drm_kms_helper
> drm_panel_orientation_quirks      942  1 drm
> gpio_ir_recv            2798  0
> dm9000                 19193  0
> mii                     7162  1 dm9000
> ipv6                  399467  16
> autofs4                28427  9
> root at letux:~#
> 
> But there is no activity (not even a warning
> that firmware download fails) from Bluetooth.
> 
> brcmfmac for WiFi is not automatically loaded.
> Maybe because the SDIO device is not found.
> 
> What should I do to make both working?

At this time I have some difficulties with the WiFi/Bt module power
supply, that why it's no enabled on ci20_defconfig because it's wont work.

> BR and thanks,
> Nikolaus
> 
> 
> PS: I have a strange error during boot which
> may also be the reason of failure (no interrupt = no
> working interface):
> 
> [    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
> [    0.000000] NR_IRQS: 222
> [    0.000000] irq: :interrupt-controller at 10001000 didn't like hwirq-0x0 to VIRQ8 mapping (rc=-19)
> [    0.000000] irq: :interrupt-controller at 10001000 didn't like hwirq-0x1 to VIRQ9 mapping (rc=-19)
> [    0.000000] irq: :interrupt-controller at 10001000 didn't like hwirq-0x2 to VIRQ10 mapping (rc=-19)
> [    0.000000] irq: :interrupt-controller at 10001000 didn't like hwirq-0x3 to VIRQ11 mapping (rc=-19)
> ...
Seem more related to I2C, but I doesn't have this problem at this
time,
I need more details.

Thanks.