[U-Boot] [PATCH v4 3/3] dm:gpio:mxc add DT support
Igor Grinberg
grinberg at compulab.co.il
Tue Feb 10 08:46:02 CET 2015
On 02/10/15 08:46, Peng Fan wrote:
> This patch add DT support for mxc gpio driver.
>
> There are one place using CONFIG_OF_CONTROL macro.
> 1. The U_BOOT_DEVICES and mxc_plat array are complied out. To DT,
> platdata is alloced using calloc, so there is no need to use mxc_plat.
>
> The following situations are tested, and all work fine:
> 1. with DM, without DT
> 2. with DM and DT
> 3. without DM
> Since device tree has not been upstreamed, if want to test this patch.
> The followings need to be done.
> + pieces of code does not gpio_request when using gpio_direction_xxx and
> etc, need to request gpio.
> + move the gpio settings from board_early_init_f to board_init
> + define CONFIG_DM ,CONFIG_DM_GPIO and CONFIG_OF_CONTROL
> + Add device tree file and do related configuration in
> `make ARCH=arm menuconfig`
> These will be done in future patches by step.
>
> Signed-off-by: Peng Fan <Peng.Fan at freescale.com>
Acked-by: Igor Grinberg <grinberg at compulab.co.il>
--
Regards,
Igor.
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