From: Sascha Hauer <s.hauer@pengutronix.de>
To: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 1/5] device: introduce resource structure to simplify resource delaration
Date: Fri, 19 Nov 2010 09:00:49 +0100 [thread overview]
Message-ID: <20101119080049.GA6017@pengutronix.de> (raw)
In-Reply-To: <1289585938-22813-1-git-send-email-plagnioj@jcrosoft.com>
Hi J,
On Fri, Nov 12, 2010 at 07:18:54PM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
> introdude also some helper to manager them
>
> and add multi resource per device support
>
> ram device: use resource structure instead of memory_platform_data
>
> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
You shouldn't use a resource_size_t type to access registers. This will
lead to problems when we start to support 64bit resource sizes. Instead
we should introduce a
#define resource_size_to_iomem(size) (void __force __iomem *)(size)
macro which does the conversion to a void __iomem * type. In a more
advanced version this could also spit a warning when the resource start
is bigger than a pointer type. As an additional plus we'll get rid of
some sparse warnings where map_base is used for readl/writel.
> diff --git a/arch/arm/mach-imx/devices.c b/arch/arm/mach-imx/devices.c
> index 11cf2a4..e89f8bb 100644
> --- a/arch/arm/mach-imx/devices.c
> +++ b/arch/arm/mach-imx/devices.c
> @@ -9,8 +9,8 @@ static struct device_d *imx_add_device(char *name, int id, void *base, int size,
> dev = xzalloc(sizeof(*dev));
> strcpy(dev->name,name);
> dev->id = id;
> - dev->map_base = (unsigned long)base;
> - dev->size = size;
> + dev_resource_set_start(dev, (unsigned long)base);
> + dev_resource_set_size(dev, (unsigned long)size);
> dev->platform_data = pdata;
Should be a cast to resource_size_t.
> diff --git a/include/driver.h b/include/driver.h
> index b9edca0..c7dce1e 100644
> --- a/include/driver.h
> +++ b/include/driver.h
> @@ -24,6 +24,7 @@
> #define DRIVER_H
>
> #include <linux/list.h>
> +#include <linux/ioport.h>
>
> #define MAX_DRIVER_NAME 32
> #define FORMAT_DRIVER_MANE_ID "%s%d"
> @@ -70,11 +71,8 @@ struct device_d {
> * something like eth0 or nor0. */
> int id;
>
> - resource_size_t size;
> -
> - /*! For devices which are directly mapped into memory, i.e. NOR
> - * Flash or SDRAM. */
> - resource_size_t map_base;
> + struct resource *resource;
> + int num_resources;
>
> void *platform_data; /*! board specific information about this device */
>
> @@ -184,6 +182,41 @@ static inline const char *dev_name(const struct device_d *dev)
> return dev_id(dev);
> }
>
> +/* ressource helper */
s/ressource/resource/
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
next prev parent reply other threads:[~2010-11-19 8:00 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-12 18:02 [To test] [PATCH 0/5] device: introduce resource structure Jean-Christophe PLAGNIOL-VILLARD
2010-11-12 18:18 ` [PATCH 1/5] device: introduce resource structure to simplify resource delaration Jean-Christophe PLAGNIOL-VILLARD
2010-11-19 8:00 ` Sascha Hauer [this message]
2010-11-19 11:30 ` Jean-Christophe PLAGNIOL-VILLARD
2010-11-20 13:40 ` Sascha Hauer
2010-11-20 13:58 ` Jean-Christophe PLAGNIOL-VILLARD
2010-11-21 4:28 ` Jean-Christophe PLAGNIOL-VILLARD
2010-11-21 6:46 ` Jean-Christophe PLAGNIOL-VILLARD
2010-11-23 7:36 ` Sascha Hauer
2010-11-23 8:25 ` Jean-Christophe PLAGNIOL-VILLARD
2010-11-23 11:34 ` Sascha Hauer
2011-01-27 8:20 ` Sascha Hauer
2010-11-12 18:18 ` [PATCH 2/5] mem: add multiple resource support Jean-Christophe PLAGNIOL-VILLARD
2010-11-12 18:18 ` [PATCH 3/5] arm/setup_memory_tags: " Jean-Christophe PLAGNIOL-VILLARD
2010-11-12 18:18 ` [PATCH 4/5] edb93xx: convert to multiple mem resources Jean-Christophe PLAGNIOL-VILLARD
2010-11-12 18:18 ` [PATCH 5/5] pcm037: " Jean-Christophe PLAGNIOL-VILLARD
2010-11-17 13:59 ` [PATCH 1/2] mem: multiple resource support allow exclude a resource Jean-Christophe PLAGNIOL-VILLARD
2010-11-19 8:24 ` Sascha Hauer
2010-11-19 11:31 ` Jean-Christophe PLAGNIOL-VILLARD
2010-11-17 13:59 ` [PATCH 2/2] mem: convert to DEVFS_MEM_BAREBOX_ONLY for freescale-mx25-3-stack/pcm037/pvm038 Jean-Christophe PLAGNIOL-VILLARD
2010-11-17 14:09 ` Baruch Siach
2010-11-17 14:02 ` [To test] [PATCH 0/5] device: introduce resource structure Jean-Christophe PLAGNIOL-VILLARD
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20101119080049.GA6017@pengutronix.de \
--to=s.hauer@pengutronix.de \
--cc=barebox@lists.infradead.org \
--cc=plagnioj@jcrosoft.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox