Re: [PATCH v3 2/6] mmc: sdhci-esdhc-imx: add tuning-step seting support

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




On Mi, 2015-07-29 at 17:03 +0800, Haibo Chen wrote:
> tuning-step is the delay cell steps in tuning procedure. The default
> value of tuning-step is 1. For imx6 series usdhc, tuning procedure can
> be passed when the tuning-step value is 1. But imx7d usdhc need the
> tuning-step value as 2, otherwise it can't pass the tuning procedure.
> 
> So this patch add the tuning-step setting in driver, so that user can
> set the tuning-step value in dts.

>From your description, the correct tuning-step value only depends on the
SoC. Why not derive it from the compatible string?

Regards,
Jan Lübbe
-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]
  Powered by Linux