RE: OMAP34xx

Hiremath, Vaibhav
2012-02-10T07:10:40Z

On Fri, Feb 10, 2012 at 07:49:47, Paul Walmsley wrote:
>
> Kevin and I just doublechecked OMAP37xx BeagleBoard xM here with Tony's
> testing branch; it works.
>

I tried it on AM37x EVM, it did worked for me but I have some observations,

1) [root@arago /]# cat /tmp/pm_debug/count
usbhost_pwrdm (ON),OFF:434,RET:466,INA:0,ON:901,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0
sgx_pwrdm (OFF),OFF:1,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0
core_pwrdm (ON),OFF:3,RET:2,INA:0,ON:6,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0
per_pwrdm (ON),OFF:3,RET:2,INA:0,ON:6,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0
dss_pwrdm (ON),OFF:434,RET:466,INA:0,ON:901,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0
cam_pwrdm (OFF),OFF:1,RET:1,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0
neon_pwrdm (ON),OFF:434,RET:466,INA:0,ON:901,RET-LOGIC-OFF:0
mpu_pwrdm (ON),OFF:434,RET:466,INA:0,ON:901,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0
iva2_pwrdm (OFF),OFF:1,RET:1,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0,RET-MEMBANK3-OFF:0,RET-MEMBANK4-OFF:0

The OFF counter for MPU/NEON/DSS/USB is getting incremented to huge value. Is it expected?
Another observation is, if I include DSS driver into the kernel then I get proper count numbers for dss_pwrdm. (not tried same for usb though)

2) Missing clockdomain in usb clock -

[root@arago /]# dmesg | grep -ir hwmod
[ 0.114868] omap_hwmod: usbtll_fck: missing clockdomain for usbtll_fck.
...

3) Not sure how this can be handled, since from TWL regulator output perspective it is NA. I enabled DUMMY_REGILATOR option and tried it, it works.

[root@arago /]# dmesg | grep -ir fail
[ 0.166717] dpll3_m2_clk rate change failed: -22
[ 0.828521] sharp_ls_panel display0: failed to set lcd brightness
[ 1.672454] smsc911x smsc911x.0: Failed to get supply 'vdd33a': -19
...

Thanks,
Vaibhav
>
> - Paul
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