All of lore.kernel.org
 help / color / mirror / Atom feed
From: Axel Lin <axel.lin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
	Linus Walleij
	<linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Subject: [PATCH] spi: use gpio_request_one() instead of spi_gpio_alloc() helper function
Date: Mon, 05 Dec 2011 15:50:47 +0800	[thread overview]
Message-ID: <1323071447.20963.3.camel@phoenix> (raw)

Signed-off-by: Axel Lin <axel.lin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 drivers/spi/spi-gpio.c |   21 ++++-----------------
 1 files changed, 4 insertions(+), 17 deletions(-)

diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c
index e093d3e..85c2eca 100644
--- a/drivers/spi/spi-gpio.c
+++ b/drivers/spi/spi-gpio.c
@@ -256,20 +256,6 @@ static void spi_gpio_cleanup(struct spi_device *spi)
 	spi_bitbang_cleanup(spi);
 }
 
-static int __init spi_gpio_alloc(unsigned pin, const char *label, bool is_in)
-{
-	int value;
-
-	value = gpio_request(pin, label);
-	if (value == 0) {
-		if (is_in)
-			value = gpio_direction_input(pin);
-		else
-			value = gpio_direction_output(pin, 0);
-	}
-	return value;
-}
-
 static int __init
 spi_gpio_request(struct spi_gpio_platform_data *pdata, const char *label,
 	u16 *res_flags)
@@ -279,7 +265,8 @@ spi_gpio_request(struct spi_gpio_platform_data *pdata, const char *label,
 	/* NOTE:  SPI_*_GPIO symbols may reference "pdata" */
 
 	if (SPI_MOSI_GPIO != SPI_GPIO_NO_MOSI) {
-		value = spi_gpio_alloc(SPI_MOSI_GPIO, label, false);
+		value = gpio_request_one(SPI_MOSI_GPIO, GPIOF_OUT_INIT_LOW,
+					 label);
 		if (value)
 			goto done;
 	} else {
@@ -288,7 +275,7 @@ spi_gpio_request(struct spi_gpio_platform_data *pdata, const char *label,
 	}
 
 	if (SPI_MISO_GPIO != SPI_GPIO_NO_MISO) {
-		value = spi_gpio_alloc(SPI_MISO_GPIO, label, true);
+		value = gpio_request_one(SPI_MISO_GPIO, GPIOF_IN, label);
 		if (value)
 			goto free_mosi;
 	} else {
@@ -296,7 +283,7 @@ spi_gpio_request(struct spi_gpio_platform_data *pdata, const char *label,
 		*res_flags |= SPI_MASTER_NO_RX;
 	}
 
-	value = spi_gpio_alloc(SPI_SCK_GPIO, label, false);
+	value = gpio_request_one(SPI_SCK_GPIO, GPIOF_OUT_INIT_LOW, label);
 	if (value)
 		goto free_miso;
 
-- 
1.7.5.4




------------------------------------------------------------------------------
All the data continuously generated in your IT infrastructure 
contains a definitive record of customers, application performance, 
security threats, fraudulent activity, and more. Splunk takes this 
data and makes sense of it. IT sense. And common sense.
http://p.sf.net/sfu/splunk-novd2d

WARNING: multiple messages have this Message-ID (diff)
From: Axel Lin <axel.lin@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Wolfram Sang <w.sang@pengutronix.de>,
	Linus Walleij <linus.walleij@linaro.org>,
	Grant Likely <grant.likely@secretlab.ca>,
	spi-devel-general@lists.sourceforge.net
Subject: [PATCH] spi: use gpio_request_one() instead of spi_gpio_alloc() helper function
Date: Mon, 05 Dec 2011 15:50:47 +0800	[thread overview]
Message-ID: <1323071447.20963.3.camel@phoenix> (raw)

Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
 drivers/spi/spi-gpio.c |   21 ++++-----------------
 1 files changed, 4 insertions(+), 17 deletions(-)

diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c
index e093d3e..85c2eca 100644
--- a/drivers/spi/spi-gpio.c
+++ b/drivers/spi/spi-gpio.c
@@ -256,20 +256,6 @@ static void spi_gpio_cleanup(struct spi_device *spi)
 	spi_bitbang_cleanup(spi);
 }
 
-static int __init spi_gpio_alloc(unsigned pin, const char *label, bool is_in)
-{
-	int value;
-
-	value = gpio_request(pin, label);
-	if (value == 0) {
-		if (is_in)
-			value = gpio_direction_input(pin);
-		else
-			value = gpio_direction_output(pin, 0);
-	}
-	return value;
-}
-
 static int __init
 spi_gpio_request(struct spi_gpio_platform_data *pdata, const char *label,
 	u16 *res_flags)
@@ -279,7 +265,8 @@ spi_gpio_request(struct spi_gpio_platform_data *pdata, const char *label,
 	/* NOTE:  SPI_*_GPIO symbols may reference "pdata" */
 
 	if (SPI_MOSI_GPIO != SPI_GPIO_NO_MOSI) {
-		value = spi_gpio_alloc(SPI_MOSI_GPIO, label, false);
+		value = gpio_request_one(SPI_MOSI_GPIO, GPIOF_OUT_INIT_LOW,
+					 label);
 		if (value)
 			goto done;
 	} else {
@@ -288,7 +275,7 @@ spi_gpio_request(struct spi_gpio_platform_data *pdata, const char *label,
 	}
 
 	if (SPI_MISO_GPIO != SPI_GPIO_NO_MISO) {
-		value = spi_gpio_alloc(SPI_MISO_GPIO, label, true);
+		value = gpio_request_one(SPI_MISO_GPIO, GPIOF_IN, label);
 		if (value)
 			goto free_mosi;
 	} else {
@@ -296,7 +283,7 @@ spi_gpio_request(struct spi_gpio_platform_data *pdata, const char *label,
 		*res_flags |= SPI_MASTER_NO_RX;
 	}
 
-	value = spi_gpio_alloc(SPI_SCK_GPIO, label, false);
+	value = gpio_request_one(SPI_SCK_GPIO, GPIOF_OUT_INIT_LOW, label);
 	if (value)
 		goto free_miso;
 
-- 
1.7.5.4




             reply	other threads:[~2011-12-05  7:50 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-05  7:50 Axel Lin [this message]
2011-12-05  7:50 ` [PATCH] spi: use gpio_request_one() instead of spi_gpio_alloc() helper function Axel Lin
2011-12-06  1:27 ` Denis Kuzmenko
2011-12-07 21:21 ` Wolfram Sang
2011-12-08  1:36   ` Axel Lin
2011-12-08  8:46     ` Wolfram Sang

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=1323071447.20963.3.camel@phoenix \
    --to=axel.lin-re5jqeeqqe8avxtiumwx3w@public.gmane.org \
    --cc=linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org \
    --cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.