Re: MMC error on Exynos4210 board

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On Wed, Jun 18, 2014 at 4:33 AM, Sachin Kamat <spk.linux@xxxxxxxxx> wrote:
> Hi Tim,
>
> I see the below error on Exynos4210 based Origen board with linux-next
> (20140618).
> Reverting the below commit works fine.
>
> Commit: 8d02e775a6 "mmc: sdhci: Use mmc core regulator infrastucture"
>
> Any ideas?
>
> ***************
>
> -- [    2.068992] sdhci: Secure Digital Host Controller Interface driver
> [    2.075059] sdhci: Copyright(c) Pierre Ossman
> [    2.079762] of_get_named_gpiod_flags: can't parse gpios property of
> node '/sdhci@12510000[0]'
> [    2.088021] s3c-sdhci 12510000.sdhci: clock source 2: mmc_busclk.2
> (50000000 Hz)
> [    2.095322] of_get_named_gpiod_flags: can't parse gpios property of
> node '/sdhci@12510000[0]'
> [    2.103794] of_get_named_gpiod_flags: can't parse gpios property of
> node '/sdhci@12510000[0]'
> [    2.112478] s3c-sdhci 12510000.sdhci: No vqmmc regulator found
> [    2.118117] mmc0: Hardware doesn't report any support voltages.
> [    2.124004] s3c-sdhci 12510000.sdhci: sdhci_add_host() failed
> [    2.130080] of_get_named_gpiod_flags: can't parse gpios property of
> node '/sdhci@12530000[0]'
> [    2.138352] s3c-sdhci 12530000.sdhci: clock source 2: mmc_busclk.2
> (16666667 Hz)
> [    2.145661] of_get_named_gpiod_flags: can't parse gpios property of
> node '/sdhci@12530000[0]'
> [    2.154139] of_get_named_gpiod_flags: can't parse gpios property of
> node '/sdhci@12530000[0]'
> [    2.162834] s3c-sdhci 12530000.sdhci: No vqmmc regulator found
> [    2.168464] mmc0: Hardware doesn't report any support voltages.
> [    2.174349] s3c-sdhci 12530000.sdhci: sdhci_add_host() failed
> [    2.180281] Synopsys Designware Multimedia Card Interface Driver
> [    2.188131] usbcore: registered new interface driver usbhid
> [    2.192287] usbhid: USB HID core driver
> [    2.196329] TCP: cubic registered
> [    2.199362] NET: Registered protocol family 17
> [    2.203917] NET: Registered protocol family 15
> [    2.208404] Registering SWP/SWPB emulation handler
> [    2.214357] of_get_named_gpiod_flags exited with status 0
> [    2.218430] of_get_named_gpiod_flags exited with status 0
> [    2.223803] of_get_named_gpiod_flags exited with status 0
> [    2.229170] of_get_named_gpiod_flags exited with status 0
> [    2.234560] of_get_named_gpiod_flags exited with status 0
> [    2.239953] gpio-229: gpiod_set_debounce: missing set() or
> set_debounce() operations
> [    2.247773] gpio-230: gpiod_set_debounce: missing set() or
> set_debounce() operations
> [    2.255473] gpio-228: gpiod_set_debounce: missing set() or
> set_debounce() operations
> [    2.263221] gpio-227: gpiod_set_debounce: missing set() or
> set_debounce() operations
> [    2.270918] gpio-226: gpiod_set_debounce: missing set() or
> set_debounce() operations
> [    2.278899] input: gpio_keys as /devices/gpio_keys/input/input0
> [    2.285196] s3c-rtc 10070000.rtc: setting system clock to
> 2000-01-01 00:00:00 UTC (946684800)
> [    2.295072] VDD_G3D_1.1V: disabling
> [    2.304744] VADC_3.3V: disabling
> [    2.312095] VDD_AUD_1.8V: disabling
> [    2.319714] VMIPI_1.1V: disabling
> [    2.327193] VDD_ABB_3.3V: disabling
> [    2.332779] VMEM_VDD_2.8V: disabling
> [    2.336148] Waiting for root device /dev/mmcblk0p1...
>
> *************
> Regards,
> Sachin.

Would you mind reverting just this part of the commit to see if it
clears up your trouble?

>         if (host->ocr_mask)
> -               ocr_avail = host->ocr_mask;
> +               ocr_avail &= host->ocr_mask;
>
>         mmc->ocr_avail = ocr_avail;
>         mmc->ocr_avail_sdio = ocr_avail;

Thanks,
Tim Kryger
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