[U-Boot] dm-spi: Convert to driver model

Hi All,

I'm trying to port or helping anyone from below driver authors to convert these drivers to driver model [1]

And I couldn't find any dts for the boards which uses these spi drivers if anyone knows if there is a dts which already exist in the code or in Linux please let me know.

armada100_spi.c

atmel_spi.c

bfin_spi6xx.c

bfin_spi.c

cf_qspi.c

cf_spi.c

davinci_spi.c

ep93xx_spi.c

fsl_espi.c

kirkwood_spi.c

lpc32xx_ssp.c

mpc52xx_spi.c

mpc8xxx_spi.c

mxc_spi.c

mxs_spi.c

omap3_spi.c

sh_qspi.c

sh_spi.c

soft_spi_legacy.c

ti_qspi.c

[1] doc/driver-model/spi-howto.txt

thanks!