diff mbox

[172/182] staging: vme: use gpiochip data pointer

Message ID 1449669005-6835-1-git-send-email-linus.walleij@linaro.org
State New
Headers show

Commit Message

Linus Walleij Dec. 9, 2015, 1:50 p.m. UTC
This makes the driver use the data pointer added to the gpio_chip
to store a pointer to the state container instead of relying on
container_of().

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Martyn Welch <martyn@welchs.me.uk>
Cc: Manohar Vanga <manohar.vanga@gmail.com>
Cc: devel@driverdev.osuosl.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
Greg, please ACK this so I can take this through the GPIO tree.
---
 drivers/staging/vme/devices/vme_pio2_gpio.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

Comments

Martyn Welch Dec. 11, 2015, 6:58 a.m. UTC | #1
On 09/12/15 13:50, Linus Walleij wrote:
> This makes the driver use the data pointer added to the gpio_chip
> to store a pointer to the state container instead of relying on
> container_of().
>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Martyn Welch <martyn@welchs.me.uk>
> Cc: Manohar Vanga <manohar.vanga@gmail.com>
> Cc: devel@driverdev.osuosl.org
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Signed-of-by: Martyn Welch <martyn@welchs.me.uk>

> ---
> Greg, please ACK this so I can take this through the GPIO tree.
> ---
>   drivers/staging/vme/devices/vme_pio2_gpio.c | 17 ++++++-----------
>   1 file changed, 6 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/staging/vme/devices/vme_pio2_gpio.c b/drivers/staging/vme/devices/vme_pio2_gpio.c
> index 77901b345a71..a2b740ab7ffe 100644
> --- a/drivers/staging/vme/devices/vme_pio2_gpio.c
> +++ b/drivers/staging/vme/devices/vme_pio2_gpio.c
> @@ -17,7 +17,7 @@
>   #include <linux/device.h>
>   #include <linux/platform_device.h>
>   #include <linux/ctype.h>
> -#include <linux/gpio.h>
> +#include <linux/gpio/driver.h>
>   #include <linux/slab.h>
>   #include <linux/vme.h>
>   
> @@ -25,16 +25,11 @@
>   
>   static const char driver_name[] = "pio2_gpio";
>   
> -static struct pio2_card *gpio_to_pio2_card(struct gpio_chip *chip)
> -{
> -	return container_of(chip, struct pio2_card, gc);
> -}
> -
>   static int pio2_gpio_get(struct gpio_chip *chip, unsigned int offset)
>   {
>   	u8 reg;
>   	int retval;
> -	struct pio2_card *card = gpio_to_pio2_card(chip);
> +	struct pio2_card *card = gpiochip_get_data(chip);
>   
>   	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == OUTPUT) |
>   		(card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
> @@ -72,7 +67,7 @@ static void pio2_gpio_set(struct gpio_chip *chip, unsigned int offset,
>   {
>   	u8 reg;
>   	int retval;
> -	struct pio2_card *card = gpio_to_pio2_card(chip);
> +	struct pio2_card *card = gpiochip_get_data(chip);
>   
>   	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == INPUT) |
>   		(card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
> @@ -102,7 +97,7 @@ static void pio2_gpio_set(struct gpio_chip *chip, unsigned int offset,
>   static int pio2_gpio_dir_in(struct gpio_chip *chip, unsigned offset)
>   {
>   	int data;
> -	struct pio2_card *card = gpio_to_pio2_card(chip);
> +	struct pio2_card *card = gpiochip_get_data(chip);
>   
>   	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == OUTPUT) |
>   		(card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
> @@ -121,7 +116,7 @@ static int pio2_gpio_dir_in(struct gpio_chip *chip, unsigned offset)
>   static int pio2_gpio_dir_out(struct gpio_chip *chip, unsigned offset, int value)
>   {
>   	int data;
> -	struct pio2_card *card = gpio_to_pio2_card(chip);
> +	struct pio2_card *card = gpiochip_get_data(chip);
>   
>   	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == INPUT) |
>   		(card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
> @@ -207,7 +202,7 @@ int pio2_gpio_init(struct pio2_card *card)
>   	card->gc.set = pio2_gpio_set;
>   
>   	/* This function adds a memory mapped GPIO chip */
> -	retval = gpiochip_add(&(card->gc));
> +	retval = gpiochip_add_data(&(card->gc), card);
>   	if (retval) {
>   		dev_err(&card->vdev->dev, "Unable to register GPIO\n");
>   		kfree(card->gc.label);

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Linus Walleij Dec. 14, 2015, 2:14 p.m. UTC | #2
On Fri, Dec 11, 2015 at 7:58 AM, Martyn Welch <martyn@welchs.me.uk> wrote:
> On 09/12/15 13:50, Linus Walleij wrote:
>>
>> This makes the driver use the data pointer added to the gpio_chip
>> to store a pointer to the state container instead of relying on
>> container_of().
>>
>> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
>> Cc: Martyn Welch <martyn@welchs.me.uk>
>> Cc: Manohar Vanga <manohar.vanga@gmail.com>
>> Cc: devel@driverdev.osuosl.org
>> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
>
>
> Signed-of-by: Martyn Welch <martyn@welchs.me.uk>

Signed-off is for the delivery path so I assume you meant
Acked-by and I added that.

Yours,
Linus Walleij
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Martyn Welch Dec. 14, 2015, 9:51 p.m. UTC | #3
On 14/12/15 14:14, Linus Walleij wrote:
> On Fri, Dec 11, 2015 at 7:58 AM, Martyn Welch <martyn@welchs.me.uk> wrote:
>> On 09/12/15 13:50, Linus Walleij wrote:
>>> This makes the driver use the data pointer added to the gpio_chip
>>> to store a pointer to the state container instead of relying on
>>> container_of().
>>>
>>> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
>>> Cc: Martyn Welch <martyn@welchs.me.uk>
>>> Cc: Manohar Vanga <manohar.vanga@gmail.com>
>>> Cc: devel@driverdev.osuosl.org
>>> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
>>
>> Signed-of-by: Martyn Welch <martyn@welchs.me.uk>
> Signed-off is for the delivery path so I assume you meant
> Acked-by and I added that.

Yeah, no problem.

Martyn
> Yours,
> Linus Walleij

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Greg KH Feb. 8, 2016, 4:08 a.m. UTC | #4
On Wed, Dec 09, 2015 at 02:50:05PM +0100, Linus Walleij wrote:
> This makes the driver use the data pointer added to the gpio_chip
> to store a pointer to the state container instead of relying on
> container_of().
> 
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Martyn Welch <martyn@welchs.me.uk>
> Cc: Manohar Vanga <manohar.vanga@gmail.com>
> Cc: devel@driverdev.osuosl.org
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> Greg, please ACK this so I can take this through the GPIO tree.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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diff mbox

Patch

diff --git a/drivers/staging/vme/devices/vme_pio2_gpio.c b/drivers/staging/vme/devices/vme_pio2_gpio.c
index 77901b345a71..a2b740ab7ffe 100644
--- a/drivers/staging/vme/devices/vme_pio2_gpio.c
+++ b/drivers/staging/vme/devices/vme_pio2_gpio.c
@@ -17,7 +17,7 @@ 
 #include <linux/device.h>
 #include <linux/platform_device.h>
 #include <linux/ctype.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 #include <linux/slab.h>
 #include <linux/vme.h>
 
@@ -25,16 +25,11 @@ 
 
 static const char driver_name[] = "pio2_gpio";
 
-static struct pio2_card *gpio_to_pio2_card(struct gpio_chip *chip)
-{
-	return container_of(chip, struct pio2_card, gc);
-}
-
 static int pio2_gpio_get(struct gpio_chip *chip, unsigned int offset)
 {
 	u8 reg;
 	int retval;
-	struct pio2_card *card = gpio_to_pio2_card(chip);
+	struct pio2_card *card = gpiochip_get_data(chip);
 
 	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == OUTPUT) |
 		(card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
@@ -72,7 +67,7 @@  static void pio2_gpio_set(struct gpio_chip *chip, unsigned int offset,
 {
 	u8 reg;
 	int retval;
-	struct pio2_card *card = gpio_to_pio2_card(chip);
+	struct pio2_card *card = gpiochip_get_data(chip);
 
 	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == INPUT) |
 		(card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
@@ -102,7 +97,7 @@  static void pio2_gpio_set(struct gpio_chip *chip, unsigned int offset,
 static int pio2_gpio_dir_in(struct gpio_chip *chip, unsigned offset)
 {
 	int data;
-	struct pio2_card *card = gpio_to_pio2_card(chip);
+	struct pio2_card *card = gpiochip_get_data(chip);
 
 	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == OUTPUT) |
 		(card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
@@ -121,7 +116,7 @@  static int pio2_gpio_dir_in(struct gpio_chip *chip, unsigned offset)
 static int pio2_gpio_dir_out(struct gpio_chip *chip, unsigned offset, int value)
 {
 	int data;
-	struct pio2_card *card = gpio_to_pio2_card(chip);
+	struct pio2_card *card = gpiochip_get_data(chip);
 
 	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == INPUT) |
 		(card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
@@ -207,7 +202,7 @@  int pio2_gpio_init(struct pio2_card *card)
 	card->gc.set = pio2_gpio_set;
 
 	/* This function adds a memory mapped GPIO chip */
-	retval = gpiochip_add(&(card->gc));
+	retval = gpiochip_add_data(&(card->gc), card);
 	if (retval) {
 		dev_err(&card->vdev->dev, "Unable to register GPIO\n");
 		kfree(card->gc.label);