Re: [PATCH] Revert "mmc: dw_mmc-rockchip: add runtime PM support"

Randy Li
2016-12-30T02:44:40Z

On 12/30/2016 10:35 AM, Jaehoon Chung wrote:
> On 12/30/2016 12:07 AM, ayaka wrote:
>>
>>
>> On 12/29/2016 10:04 PM, Jaehoon Chung wrote:
>>> Hi,
>>>
>>> On 12/29/2016 09:55 PM, ayaka wrote:
>>>> [ 5.849733] rk_gmac-dwmac ff290000.ethernet (unnamed net_device) (uninitialized): Enable RX Mitigation via HW Watchdog Timer
>>>> [ 5.944512] mmc_host mmc1: Bus speed (slot 0) = 50000000Hz (slot req 50000000Hz, actual 50000000HZ div = 0)
>>>> [ 5.958249] mmc1: new ultra high speed DDR50 SDIO card at address 0001
>>>> [ 6.294548] dwmmc_rockchip ff0f0000.dwmmc: Successfully tuned phase to 177
>>>> [ 6.301591] mmc2: new HS200 MMC card at address 0001
>>>> [ 6.306758] mmc_host mmc0: Bus speed (slot 0) = 300000Hz (slot req 300000Hz, actual 300000HZ div = 0)
>>>> [ 6.316830] mmcblk2: mmc2:0001 AGND3R 14.6 GiB
>>>> [ 6.321881] mmcblk2boot0: mmc2:0001 AGND3R partition 1 4.00 MiB
>>>> [ 6.328331] mmcblk2boot1: mmc2:0001 AGND3R partition 2 4.00 MiB
>>>> [ 6.334792] mmcblk2rpmb: mmc2:0001 AGND3R partition 3 4.00 MiB
>>>> [ 6.344295] mmcblk2: p1 p2 p3 p4 p5 p6 p7
>>>> [ 6.469892] mmc_host mmc0: Bus speed (slot 0) = 200000Hz (slot req 200000Hz, actual 200000HZ div = 0)
>>>> [ 6.621888] mmc_host mmc0: Bus speed (slot 0) = 187500Hz (slot req 100000Hz, actual 93750HZ div = 1)
>>>> [ 6.917883] libphy: stmmac: probed
>>>> [ 6.921319] rk_gmac-dwmac ff290000.ethernet eth0: PHY ID 001cc915 at 0 IRQ POLL (stmmac-0:00) active
>>>> [ 6.930476] rk_gmac-dwmac ff290000.ethernet eth0: PHY ID 001cc915 at 2 IRQ POLL (stmmac-0:02)
>>>> [ 6.939757] input: gpio-keys as /devices/platform/gpio-keys/input/input0
>>>> [ 6.946937] rtc-hym8563 0-0051: no valid clock/calendar values available
>>>> [ 6.953694] rtc-hym8563 0-0051: hctosys: unable to read the hardware clock
>>>> [ 6.961262] vcc_sd: disabling
>>>> [ 6.964275] dovdd_1v8: disabling
>>>> [ 6.967527] dvdd_1v2: disabling
>>>> [ 6.971006] vdd10_lcd: disabling
>>>> [ 6.974701] vcc18_lcd: disabling
>>>> [ 6.978467] ttyS2 - failed to request DMA
>>>> [ 7.101883] mmc_host mmc0: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, actual 400000HZ div = 0)
>>>> [ 7.253874] mmc_host mmc0: Bus speed (slot 0) = 300000Hz (slot req 300000Hz, actual 300000HZ div = 0)
>>>> [ 7.405883] mmc_host mmc0: Bus speed (slot 0) = 200000Hz (slot req 200000Hz, actual 200000HZ div = 0)
>>>> [ 7.557885] mmc_host mmc0: Bus speed (slot 0) = 187500Hz (slot req 100000Hz, actual 93750HZ div = 1)
>>>> [ 8.037872] mmc_host mmc0: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, actual 400000HZ div = 0)
>>>> [ 8.189877] mmc_host mmc0: Bus speed (slot 0) = 300000Hz (slot req 300000Hz, actual 300000HZ div = 0)
>>>> [ 8.341881] mmc_host mmc0: Bus speed (slot 0) = 200000Hz (slot req 200000Hz, actual 200000HZ div = 0)
>>>> [ 8.493884] mmc_host mmc0: Bus speed (slot 0) = 187500Hz (slot req 100000Hz, actual 93750HZ div = 1)
>>>> [ 8.973871] mmc_host mmc0: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, actual 400000HZ div = 0)
>>>> [ 9.125876] mmc_host mmc0: Bus speed (slot 0) = 300000Hz (slot req 300000Hz, actual 300000HZ div = 0)
>>>> [ 9.277884] mmc_host mmc0: Bus speed (slot 0) = 200000Hz (slot req 200000Hz, actual 200000HZ div = 0)
>>>> [ 9.429882] mmc_host mmc0: Bus speed (slot 0) = 187500Hz (slot req 100000Hz, actual 93750HZ div = 1)
>>>>
>>>> looping here
>>>>
>>>> If I revert that patch, there are still lots of Bus speed messages, but finally would enter into system.
>>>>
>>> Plz..Don't put the comment on the top.
>>>
>>> Which kernel did you use?
>> Add linux-next specific files for 20161224
>
> mmc0 is what card? Is it polling for detecting card?
> (It seems the SD-card..right?)
Yes, but the Firefly release won't show that, just stop at "ttyS2 -
failed to request DMA". I check both the firefly reload and firefly
release, they both have a cd line for them, so it won't be poll mode.
> Those logs should be polled for detecting mmc0 card..Hmm..I sent the patch for disabling log message when polling.
> If this log is displayed, then my patch might be some wrong.. :(
>
> Best Regards,
> Jaehoon Chung
>
>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>
> [snip]
>
>>
>>
>>
>>
>
>

--
Randy Li
The third produce department
===========================================================================
This email message, including any attachments, is for the sole
use of the intended recipient(s) and may contain confidential and
privileged information. Any unauthorized review, use, disclosure or
distribution is prohibited. If you are not the intended recipient, please
contact the sender by reply e-mail and destroy all copies of the original
message. [Fuzhou Rockchip Electronics, INC. China mainland]
===========================================================================