From: Lars Poeschel <larsi@wh2.tu-dresden.de> To: poeschel@lemonage.de, grant.likely@secretlab.ca, rob.herring@calxeda.com, rob@landley.net, linus.walleij@linaro.org, devicetree-discuss@lists.ozlabs.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, spi-devel-general@lists.sourceforge.net Cc: w.sang@pengutronix.de, ben-linux@fluff.org, linux-i2c@vger.kernel.org Subject: [PATCH 1/2] gpio: mcp23s08: Allow -1 as a legal value for global gpio base Date: Wed, 6 Feb 2013 18:01:57 +0100 [thread overview] Message-ID: <1360170118-11937-2-git-send-email-larsi@wh2.tu-dresden.de> (raw) In-Reply-To: <1360170118-11937-1-git-send-email-larsi@wh2.tu-dresden.de> From: Lars Poeschel <poeschel@lemonage.de> Explicitly allow -1 as a legal value for the mcp23s08_platform_data->base. This is the special value lets the kernel choose a valid global gpio base number. Signed-off-by: Lars Poeschel <poeschel@lemonage.de> --- drivers/gpio/gpio-mcp23s08.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpio/gpio-mcp23s08.c b/drivers/gpio/gpio-mcp23s08.c index 3cea0ea..2afb828 100644 --- a/drivers/gpio/gpio-mcp23s08.c +++ b/drivers/gpio/gpio-mcp23s08.c @@ -483,7 +483,7 @@ static int mcp230xx_probe(struct i2c_client *client, int status; pdata = client->dev.platform_data; - if (!pdata || !gpio_is_valid(pdata->base)) { + if ((!pdata || !gpio_is_valid(pdata->base)) && pdata->base != -1) { dev_dbg(&client->dev, "invalid or missing platform data\n"); return -EINVAL; } @@ -570,7 +570,7 @@ static int mcp23s08_probe(struct spi_device *spi) type = spi_get_device_id(spi)->driver_data; pdata = spi->dev.platform_data; - if (!pdata || !gpio_is_valid(pdata->base)) { + if ((!pdata || !gpio_is_valid(pdata->base)) && pdata->base != -1) { dev_dbg(&spi->dev, "invalid or missing platform data\n"); return -EINVAL; } -- 1.7.10.4
WARNING: multiple messages have this Message-ID (diff)
From: Lars Poeschel <larsi-myOXECIRRCL4ajHJ1XSv27NAH6kLmebB@public.gmane.org> To: poeschel-Xtl8qvBWbHwb1SvskN2V4Q@public.gmane.org, grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org, rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org, rob-VoJi6FS/r0vR7s880joybQ@public.gmane.org, linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Cc: w.sang-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org, ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org, linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Subject: [PATCH 1/2] gpio: mcp23s08: Allow -1 as a legal value for global gpio base Date: Wed, 6 Feb 2013 18:01:57 +0100 [thread overview] Message-ID: <1360170118-11937-2-git-send-email-larsi@wh2.tu-dresden.de> (raw) In-Reply-To: <1360170118-11937-1-git-send-email-larsi-myOXECIRRCL4ajHJ1XSv27NAH6kLmebB@public.gmane.org> From: Lars Poeschel <poeschel-Xtl8qvBWbHwb1SvskN2V4Q@public.gmane.org> Explicitly allow -1 as a legal value for the mcp23s08_platform_data->base. This is the special value lets the kernel choose a valid global gpio base number. Signed-off-by: Lars Poeschel <poeschel-Xtl8qvBWbHwb1SvskN2V4Q@public.gmane.org> --- drivers/gpio/gpio-mcp23s08.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpio/gpio-mcp23s08.c b/drivers/gpio/gpio-mcp23s08.c index 3cea0ea..2afb828 100644 --- a/drivers/gpio/gpio-mcp23s08.c +++ b/drivers/gpio/gpio-mcp23s08.c @@ -483,7 +483,7 @@ static int mcp230xx_probe(struct i2c_client *client, int status; pdata = client->dev.platform_data; - if (!pdata || !gpio_is_valid(pdata->base)) { + if ((!pdata || !gpio_is_valid(pdata->base)) && pdata->base != -1) { dev_dbg(&client->dev, "invalid or missing platform data\n"); return -EINVAL; } @@ -570,7 +570,7 @@ static int mcp23s08_probe(struct spi_device *spi) type = spi_get_device_id(spi)->driver_data; pdata = spi->dev.platform_data; - if (!pdata || !gpio_is_valid(pdata->base)) { + if ((!pdata || !gpio_is_valid(pdata->base)) && pdata->base != -1) { dev_dbg(&spi->dev, "invalid or missing platform data\n"); return -EINVAL; } -- 1.7.10.4 ------------------------------------------------------------------------------ Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb
next prev parent reply other threads:[~2013-02-06 17:01 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2013-02-06 17:01 [PATCH 0/2] Convert mcp23s08 to DT usage Lars Poeschel 2013-02-06 17:01 ` Lars Poeschel [this message] 2013-02-06 17:01 ` [PATCH 1/2] gpio: mcp23s08: Allow -1 as a legal value for global gpio base Lars Poeschel 2013-02-09 14:27 ` Grant Likely 2013-02-06 17:01 ` [PATCH 2/2] gpio: mcp23s08: convert driver to DT Lars Poeschel 2013-02-06 17:01 ` Lars Poeschel 2013-02-09 14:31 ` Grant Likely
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