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 5/6] of_spi: Add fetching of of_gpio flags to of_spi_register_master
Date: Mon, 11 Feb 2013 00:22:20 +0000 [thread overview]
Message-ID: <20130211002220.AFCA83E0C13@localhost> (raw)
In-Reply-To: <1359471223-4794-6-git-send-email-andreas@gaisler.com>
On Tue, 29 Jan 2013 15:53:42 +0100, Andreas Larsson <andreas@gaisler.com> wrote:
> When using a gpio chip select with a OF_GPIO_ACTIVE_LOW flag, this needs to be
> known to the controller driver.
>
> Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Out of curiosity, what do you need the flags for? Polarity of the CS
signal? I think it is long past time to revisit baking polarity control
into core of gpiolib. Would you mind investigating doing that instead of
having to manage it manually in each and every driver?
g.
next prev parent reply other threads:[~2013-02-11 0:22 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
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 [this message]
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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