[PATCH] ARM: socfpga: Set reset-names property for &mmc

[Sascha Hauer]

On Mon, Nov 01, 2021 at 05:40:53PM +0000, Ian Abbott wrote:
> Since commit 90bdf1e5d1e4 ("mci: dw_mmc: match against StarFive MMC
> compatibles"), the dw_mmc driver requires a reset line called "reset".
> The slightly earlier commit a3cf324593ea ("mci: dw_mmc: add optional
> reset line") introduced the reset line support, but made it optional.
> 
> The device tree node for SoCFPGA's MMC device has the "resets" property,
> but is missing the "reset-names" property, so MMC no longer works.
> Barebox produces the error message:
> 
> ERROR: dw_mmc ff704000.dwmmc0 at ff704000.of: probe failed: Invalid argument
> 
> Add the missing "reset-names" property to the "&mmc" node in
> "arch/arm/dts/socfpga.dtsi".  It probably needs fixing in the upstream
> Linux device tree sources too!

The reset binding lists reset-names as an optional property, so it seems
our reset code needs fixing and not the dtsi file.

Sascha

-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |