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authorLinus Walleij <linus.walleij@linaro.org>2015-12-08 15:49:10 +0100
committerLinus Walleij <linus.walleij@linaro.org>2016-03-30 10:53:04 +0200
commit1e714e54b5ca5bfc75bc43ed41f8217242e831fe (patch)
tree607976e445f5ebdf57b49181cac02e9c67eb59b8 /drivers/soc/fsl
parent0d36fe65f58391712e11a6621075f373216e5f00 (diff)
powerpc: qe_lib-gpio: use gpiochip data pointer
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: Anatolij Gustschin <agust@denx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/soc/fsl')
-rw-r--r--drivers/soc/fsl/qe/gpio.c20
1 files changed, 8 insertions, 12 deletions
diff --git a/drivers/soc/fsl/qe/gpio.c b/drivers/soc/fsl/qe/gpio.c
index 65845712571c..333eb2215a57 100644
--- a/drivers/soc/fsl/qe/gpio.c
+++ b/drivers/soc/fsl/qe/gpio.c
@@ -18,6 +18,8 @@
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_gpio.h>
+#include <linux/gpio/driver.h>
+/* FIXME: needed for gpio_to_chip() get rid of this */
#include <linux/gpio.h>
#include <linux/slab.h>
#include <linux/export.h>
@@ -37,15 +39,9 @@ struct qe_gpio_chip {
struct qe_pio_regs saved_regs;
};
-static inline struct qe_gpio_chip *
-to_qe_gpio_chip(struct of_mm_gpio_chip *mm_gc)
-{
- return container_of(mm_gc, struct qe_gpio_chip, mm_gc);
-}
-
static void qe_gpio_save_regs(struct of_mm_gpio_chip *mm_gc)
{
- struct qe_gpio_chip *qe_gc = to_qe_gpio_chip(mm_gc);
+ struct qe_gpio_chip *qe_gc = gpiochip_get_data(&mm_gc->gc);
struct qe_pio_regs __iomem *regs = mm_gc->regs;
qe_gc->cpdata = in_be32(&regs->cpdata);
@@ -69,7 +65,7 @@ static int qe_gpio_get(struct gpio_chip *gc, unsigned int gpio)
static void qe_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
{
struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct qe_gpio_chip *qe_gc = to_qe_gpio_chip(mm_gc);
+ struct qe_gpio_chip *qe_gc = gpiochip_get_data(gc);
struct qe_pio_regs __iomem *regs = mm_gc->regs;
unsigned long flags;
u32 pin_mask = 1 << (QE_PIO_PINS - 1 - gpio);
@@ -89,7 +85,7 @@ static void qe_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
static int qe_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
{
struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct qe_gpio_chip *qe_gc = to_qe_gpio_chip(mm_gc);
+ struct qe_gpio_chip *qe_gc = gpiochip_get_data(gc);
unsigned long flags;
spin_lock_irqsave(&qe_gc->lock, flags);
@@ -104,7 +100,7 @@ static int qe_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
static int qe_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
{
struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct qe_gpio_chip *qe_gc = to_qe_gpio_chip(mm_gc);
+ struct qe_gpio_chip *qe_gc = gpiochip_get_data(gc);
unsigned long flags;
qe_gpio_set(gc, gpio, val);
@@ -165,7 +161,7 @@ struct qe_pin *qe_pin_request(struct device_node *np, int index)
}
mm_gc = to_of_mm_gpio_chip(gc);
- qe_gc = to_qe_gpio_chip(mm_gc);
+ qe_gc = gpiochip_get_data(gc);
spin_lock_irqsave(&qe_gc->lock, flags);
@@ -302,7 +298,7 @@ static int __init qe_add_gpiochips(void)
gc->get = qe_gpio_get;
gc->set = qe_gpio_set;
- ret = of_mm_gpiochip_add(np, mm_gc);
+ ret = of_mm_gpiochip_add_data(np, mm_gc, qe_gc);
if (ret)
goto err;
continue;