[U-Boot] [PATCH] gpio: mxc_gpio: enable DM gpio before relocation

Simon Glass sjg at chromium.org
Tue Jun 16 23:44:23 CEST 2015


Hi Markus,

On 16 June 2015 at 01:08, Markus Niebel <list-09_u-boot at tqsc.de> wrote:
> From: Markus Niebel <Markus.Niebel at tq-group.com>
>
> gpio often are needed to detect revision and variants.
> Therefore gpio should be available ASAP.
>
> Signed-off-by: Markus Niebel <Markus.Niebel at tq-group.com>
> ---
>  drivers/gpio/mxc_gpio.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpio/mxc_gpio.c b/drivers/gpio/mxc_gpio.c
> index 2012f99..925758a 100644
> --- a/drivers/gpio/mxc_gpio.c
> +++ b/drivers/gpio/mxc_gpio.c
> @@ -330,6 +330,7 @@ U_BOOT_DRIVER(gpio_mxc) = {
>         .priv_auto_alloc_size = sizeof(struct mxc_bank_info),
>         .of_match = mxc_gpio_ids,
>         .bind   = mxc_gpio_bind,
> +       .flags  = DM_FLAG_PRE_RELOC,
>  };
>
>  #ifndef CONFIG_OF_CONTROL
> --
> 2.3.0
>

This should really be done in the device tree with the
u-boot,dm-pre-reloc property for the particular GPIO banks you need. I
don't think this should be a global setting.

Regards,
Simon


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