[U-Boot] [PATCH v8 0/12] Enable driver model for GPIOs on Tegra and Exynos

[Simon Glass]

Hi Minkyu,

On 14 September 2014 16:29, Simon Glass <sjg at chromium.org> wrote:
> (Note: Tegra patches have been applied, I am resending with exynos only)
>
> 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. Each GPIO bank has a separate
> device. Some arguments have been made that a single device should support
> all the GPIO banks, but currently the driver model uclass does not work that
> way and it would require a second-level data structure to handle the bank
> feature.
>
> This driver has been tested on:
>
> - Seaboard (Tegra 20)
> - Beaver (Tegra 30)
> - Jetson-TK1 (Tegra 124).
>
> I don't have a Tegra 114 board (Dalmore seems to be the only one with U-Boot
> support) but I am quite confident that it works.
>
> For exynos, the pinctrl device tree files are brought in from the kernel
> and cut down to remove the groupings which we don't yet use. Very small
> additions are made to avoid replicating the awful tables that Linux has
> for every exynos SoC. This series sits on top of the exynos refactors.
>
> The 'gpio' command is updated to support display of only the allocated
> GPIOs. This is much more friendly than displaying a large table.
>
> A few related clean-ups are provided as well.
>
> This series is available at u-boot-dm.git, branch working.
>
> Changes in v8:
> - Adjust odroid device tree file to use #include instead of /include/
> - Add missing special case reg property for exynos5420 GPX0
> - Add patch containing pinctrl settings for s5p_goni
> - Add patch containing pinctrl settings for s5p_goni
> - Add new patch to move smdkc100 to generic board
> - Add new patch to move s5p_goni to generic board
> - Enable driver model for smdkc100 and s5p_goni separately

Are you comfortable with me applying this series and the serial and
SPI ones to dm/next (along with the contributed goni patch)? It is too
late for this release and that will give us lots of testing time for
2015.01. I'd like to pull together all the driver model stuff over the
next few days.

Regards,
Simon