From: Linus Walleij <linus.walleij@linaro.org>
To: linux-gpio@vger.kernel.org, Johan Hovold <johan@kernel.org>,
Alexandre Courbot <acourbot@nvidia.com>,
Michael Welling <mwelling@ieee.org>,
Markus Pargmann <mpa@pengutronix.de>
Cc: "Linus Walleij" <linus.walleij@linaro.org>,
"Michal Simek" <michal.simek@xilinx.com>,
"Sören Brinkmann" <soren.brinkmann@xilinx.com>
Subject: [PATCH 083/182] gpio: xilinx: use gpiochip data pointer
Date: Wed, 9 Dec 2015 14:28:24 +0100 [thread overview]
Message-ID: <1449667704-1395-1-git-send-email-linus.walleij@linaro.org> (raw)
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: Michal Simek <michal.simek@xilinx.com>
Cc: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/gpio/gpio-xilinx.c | 17 ++++++-----------
1 file changed, 6 insertions(+), 11 deletions(-)
diff --git a/drivers/gpio/gpio-xilinx.c b/drivers/gpio/gpio-xilinx.c
index 5c2971e1cb08..3345ab0ba1b3 100644
--- a/drivers/gpio/gpio-xilinx.c
+++ b/drivers/gpio/gpio-xilinx.c
@@ -92,8 +92,7 @@ static inline int xgpio_offset(struct xgpio_instance *chip, int gpio)
static int xgpio_get(struct gpio_chip *gc, unsigned int gpio)
{
struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct xgpio_instance *chip =
- container_of(mm_gc, struct xgpio_instance, mmchip);
+ struct xgpio_instance *chip = gpiochip_get_data(gc);
u32 val;
val = xgpio_readreg(mm_gc->regs + XGPIO_DATA_OFFSET +
@@ -115,8 +114,7 @@ static void xgpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
{
unsigned long flags;
struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct xgpio_instance *chip =
- container_of(mm_gc, struct xgpio_instance, mmchip);
+ struct xgpio_instance *chip = gpiochip_get_data(gc);
int index = xgpio_index(chip, gpio);
int offset = xgpio_offset(chip, gpio);
@@ -147,8 +145,7 @@ static int xgpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
{
unsigned long flags;
struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct xgpio_instance *chip =
- container_of(mm_gc, struct xgpio_instance, mmchip);
+ struct xgpio_instance *chip = gpiochip_get_data(gc);
int index = xgpio_index(chip, gpio);
int offset = xgpio_offset(chip, gpio);
@@ -180,8 +177,7 @@ static int xgpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
{
unsigned long flags;
struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct xgpio_instance *chip =
- container_of(mm_gc, struct xgpio_instance, mmchip);
+ struct xgpio_instance *chip = gpiochip_get_data(gc);
int index = xgpio_index(chip, gpio);
int offset = xgpio_offset(chip, gpio);
@@ -211,8 +207,7 @@ static int xgpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
*/
static void xgpio_save_regs(struct of_mm_gpio_chip *mm_gc)
{
- struct xgpio_instance *chip =
- container_of(mm_gc, struct xgpio_instance, mmchip);
+ struct xgpio_instance *chip = gpiochip_get_data(&mm_gc->gc);
xgpio_writereg(mm_gc->regs + XGPIO_DATA_OFFSET, chip->gpio_state[0]);
xgpio_writereg(mm_gc->regs + XGPIO_TRI_OFFSET, chip->gpio_dir[0]);
@@ -314,7 +309,7 @@ static int xgpio_probe(struct platform_device *pdev)
chip->mmchip.save_regs = xgpio_save_regs;
/* Call the OF gpio helper to setup and register the GPIO device */
- status = of_mm_gpiochip_add(np, &chip->mmchip);
+ status = of_mm_gpiochip_add_data(np, &chip->mmchip, chip);
if (status) {
pr_err("%s: error in probe function with status %d\n",
np->full_name, status);
--
2.4.3
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reply other threads:[~2015-12-09 13:28 UTC|newest]
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