From: Grant Likely <grant.likely@secretlab.ca>
To: Andreas Larsson <andreas@gaisler.com>
Cc: Rob Herring <rob.herring@calxeda.com>,
Linus Walleij <linus.walleij@linaro.org>,
devicetree-discuss@lists.ozlabs.org,
spi-devel-general@lists.sourceforge.net,
linux-kernel@vger.kernel.org, software@gaisler.com
Subject: Re: [PATCH v2 2/6] of: Return -ENXIO from of_parse_phandle_with_args for too large index and return errors from of_gpio_named_count
Date: Sun, 10 Feb 2013 23:56:31 +0000 [thread overview]
Message-ID: <20130210235631.DD54D3E0C13@localhost> (raw)
In-Reply-To: <1359471223-4794-3-git-send-email-andreas@gaisler.com>
On Tue, 29 Jan 2013 15:53:39 +0100, Andreas Larsson <andreas@gaisler.com> wrote:
> This lets of_gpio_named_count return an errno on errors by being able to
> distinguish between reaching the end of the phandle list and getting some other
> error from of_parse_phandle_with_args.
>
> Return error from of_spi_register_master when there is an "cs-gpios" list for
> which gp_gpio_named_count fails.
>
> Adjust various drivers cope with error return from of_gpio_named_count,
> including via of_gpio_count.
>
> Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Actually, I'd been meaning to fix of_gpio_count for quite a while now.
The current code uses a stupid algorithm to parse each specifier one at
a time and count how many iterations it takes before getting an error.
BLECH! A pox on me for being so lazy when I wrote it.
Anyway, your patch here spurred me on to fix it. I've just done so and
will post the patch in a few minutes. Please test and let me know if it
works for you.
g.
next prev parent reply other threads:[~2013-02-10 23:56 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-29 14:53 [PATCH v2 0/6] of, of_gpio, of_spi: Bugfix and improve of_parse_phandle_with_args, of_gpio_named_count and of_spi_register_master Andreas Larsson
[not found] ` <1359471223-4794-1-git-send-email-andreas-FkzTOoA/JUlBDgjK7y7TUQ@public.gmane.org>
2013-01-29 14:53 ` [PATCH v2 1/6] of: Return -EEXIST from of_parse_phandle_with_args for holes in phandle list Andreas Larsson
2013-01-29 14:53 ` [PATCH v2 2/6] of: Return -ENXIO from of_parse_phandle_with_args for too large index and return errors from of_gpio_named_count Andreas Larsson
[not found] ` <1359471223-4794-3-git-send-email-andreas-FkzTOoA/JUlBDgjK7y7TUQ@public.gmane.org>
2013-02-01 9:37 ` Linus Walleij
2013-02-10 23:56 ` Grant Likely [this message]
2013-01-29 14:53 ` [PATCH v2 3/6] of_spi: Initialize cs_gpios properly Andreas Larsson
2013-02-11 0:00 ` Grant Likely
2013-01-29 14:53 ` [PATCH v2 4/6] of_spi: Document cs_gpios and cs_gpio in kernel-doc Andreas Larsson
[not found] ` <1359471223-4794-5-git-send-email-andreas-FkzTOoA/JUlBDgjK7y7TUQ@public.gmane.org>
2013-02-11 0:06 ` Grant Likely
2013-01-29 14:53 ` [PATCH v2 5/6] of_spi: Add fetching of of_gpio flags to of_spi_register_master Andreas Larsson
2013-02-11 0:22 ` Grant Likely
2013-02-12 9:39 ` Andreas Larsson
2013-02-12 17:09 ` Grant Likely
2013-01-29 14:53 ` [PATCH v2 6/6] of_spi: Initialize cs_gpios and cs_gpio with -EEXIST Andreas Larsson
2013-02-11 0:23 ` Grant Likely
2013-02-12 9:46 ` Andreas Larsson
2013-02-12 18:01 ` Grant Likely
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