From: Peter Mamonov <pmamonov@gmail.com>
To: Lucas Stach <l.stach@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH] driver: add function to look up device by DT node
Date: Thu, 19 Dec 2019 13:52:44 +0300 [thread overview]
Message-ID: <20191219105243.GA16955@localhost.localdomain> (raw)
In-Reply-To: <20191219101011.17583-1-l.stach@pengutronix.de>
Hi, Lucas,
On Thu, Dec 19, 2019 at 11:10:11AM +0100, Lucas Stach wrote:
> Useful if we need to remove a deivce from the Barebox internal DT.
>
> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
> ---
> This is a prerequisite for "ARM: zii-imx8mq-dev: add DT fixups", which
> I missed to send out in the series.
> ---
> drivers/base/driver.c | 12 ++++++++++++
> include/driver.h | 1 +
> 2 files changed, 13 insertions(+)
>
> diff --git a/drivers/base/driver.c b/drivers/base/driver.c
> index eec2a2d8a2a5..437b0162d3f7 100644
> --- a/drivers/base/driver.c
> +++ b/drivers/base/driver.c
> @@ -70,6 +70,18 @@ static struct device_d *get_device_by_name_id(const char *name, int id)
> return NULL;
> }
>
> +struct device_d *get_device_by_device_node(struct device_node *np)
> +{
> + struct device_d *dev;
> +
> + for_each_device(dev) {
> + if(dev->device_node == np)
> + return dev;
> + }
> +
> + return NULL;
> +}
> +
This is already implemented in `of_find_device_by_node`.
Regards,
Peter
> int get_free_deviceid(const char *name_template)
> {
> int i = 0;
> diff --git a/include/driver.h b/include/driver.h
> index ad59ce90c3a3..4e3b2443a708 100644
> --- a/include/driver.h
> +++ b/include/driver.h
> @@ -170,6 +170,7 @@ int unregister_device(struct device_d *);
> struct device_d *get_device_by_type(ulong type, struct device_d *last);
> struct device_d *get_device_by_id(const char *id);
> struct device_d *get_device_by_name(const char *name);
> +struct device_d *get_device_by_device_node(struct device_node *np);
>
> /* Find a free device id from the given template. This is archieved by
> * appending a number to the template. Dynamically created devices should
> --
> 2.20.1
>
>
> _______________________________________________
> barebox mailing list
> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
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next prev parent reply other threads:[~2019-12-19 10:52 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-19 10:10 Lucas Stach
2019-12-19 10:52 ` Peter Mamonov [this message]
2019-12-19 10:55 ` Lucas Stach
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