Hi,
On 9 May 2014 11:28, Simon Glass <s...@chromium.org> wrote:
> Now that driver model is part of U-Boot, the task of converting drivers over
> to it begins. GPIO is one of the easiest to convert, since it already has a
> sandbox driver and a uclass driver.
>
> The Tegra GPIO driver is relatively simple since it has a linear numbering
> and already uses the generic GPIO framework.
>
> Along the way some minor deficiencies were found with driver model - these
> are corrected in this series.
>
> Also it was difficult to exhaustively test the new driver against the old,
> so a new 'iotrace' framework was created to make this easier for future
> driver authors.
>
> This series has been tested on Trimslice (Tegra 20). I will try it on a
> beaver also.
One little update - region size increases:
$ ./tools/buildman/buildman -b us-gpio6 -sS seaboard
...
13: tegra: Enable driver model
arm: (for 1/1 boards) all +5088.0 bss -4.0 data +182.0
rodata +766.0 spl/u-boot-spl:all +16.0 spl/u-boot-spl:data +16.0
text +4144.0
14: tegra: Convert tegra GPIO driver to use driver model
arm: (for 1/1 boards) all -1422.0 bss -4480.0 data +88.0
rodata +330.0 spl/u-boot-spl:all +32.0 spl/u-boot-spl:text +32.0
text +2640.0
Regards,
Simon
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