Messages in this thread | | | Date | Fri, 6 Mar 2015 11:44:13 +0000 | From | Mark Brown <> | Subject | Re: [PATCH] spi: fsl-spi: use of_iomap() to map parameter ram on CPM1 |
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On Wed, Mar 04, 2015 at 09:00:39AM +0100, leroy christophe wrote: > Le 03/03/2015 19:44, Mark Brown a écrit :
> >Why are we using of_iomap() rather than a generic I/O mapping function > >here?
> because all drivers for powerpc seems to be using of_iomap(), as on powerpc > the HW is described by the bootloader in a OF device tree. > Today, of_iomap() is at least used in FSL SPI, FSL UART, SPI mpc52xx, UART > mpc52xx, i2c-mpc, i2c-cpm, freescale ethernet drivers, etc ....
> Is it not correct ?
It's legacy, all that code is really old. Modern code is written in as architecture and firmware neutral a fashion as possible to make things more consistent and maintainable. [unhandled content-type:application/pgp-signature] | |