Merge tag 'gpio-v4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO changes for kernel cycle v4.7:

  Core infrastructural changes:

   - Support for natively single-ended GPIO driver stages.

     This means that if the hardware has registers to configure open
     drain or open source configuration, we use that rather than (as we
     did before) try to emulate it by switching the line to an input to
     get high impedance.

     This is also documented throughly in Documentation/gpio/driver.txt
     for those of you who did not understand one word of what I just
     wrote.

   - Start to do away with the unnecessarily complex and unitelligible
     ARCH_REQUIRE_GPIOLIB and ARCH_WANT_OPTIONAL_GPIOLIB, another
     evolutional artifact from the time when the GPIO subsystem was
     unmaintained.

     Archs can now just select GPIOLIB and be done with it, cleanups to
     arches will trickle in for the next kernel.  Some minor archs ACKed
     the changes immediately so these are included in this pull request.

   - Advancing the use of the data pointer inside the GPIO device for
     storing driver data by switching the PowerPC, Super-H Unicore and
     a few other subarches or subsystem drivers in ALSA SoC, Input,
     serial, SSB, staging etc to use it.

   - The initialization now reads the input/output state of the GPIO
     lines, so that each GPIO descriptor knows - if this callback is
     implemented - whether the line is input or output.  This also
     reflects nicely in userspace "lsgpio".

   - It is now possible to name GPIO producer names, line names, from
     the device tree.  (Platform data has been supported for a while).
     I bet we will get a similar mechanism for ACPI one of those days.
     This makes is possible to get sensible producer names for e.g.
     GPIO rails in "lsgpio" in userspace.

  New drivers:

   - New driver for the Loongson1.

   - The XLP driver now supports Broadcom Vulcan ARM64.

   - The IT87 driver now supports IT8620 and IT8628.

   - The PCA953X driver now supports Galileo Gen2.

  Driver improvements:

   - MCP23S08 was switched to use the gpiolib irqchip helpers and now
     also suppors level-triggered interrupts.

   - 74x164 and RCAR now supports the .set_multiple() callback

   - AMDPT was converted to use generic GPIO.

   - TC3589x, TPS65218, SX150X, F7188X, MENZ127, VX855, WM831X, WM8994
     support the new single ended callback for open drain and in some
     cases open source.

   - Implement the .get_direction() callback for a few more drivers like
     PL061, Xgene.

  Cleanups:

   - Paul Gortmaker combed through the drivers and de-modularized those
     who are not really modules.

   - Move the GPIO poweroff DT bindings to the power subdir where they
     belong.

   - Rename gpio-generic.c to gpio-mmio.c, which is much more to the
     point.  That's what it is handling, nothing more, nothing less"

* tag 'gpio-v4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (126 commits)
  MIPS: do away with ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB
  gpio: zevio: make it explicitly non-modular
  gpio: timberdale: make it explicitly non-modular
  gpio: stmpe: make it explicitly non-modular
  gpio: sodaville: make it explicitly non-modular
  pinctrl: sh-pfc: Let gpio_chip.to_irq() return zero on error
  gpio: dwapb: Add ACPI device ID for DWAPB GPIO controller on X-Gene platforms
  gpio: dt-bindings: add wd,mbl-gpio bindings
  gpio: of: make it possible to name GPIO lines
  gpio: make gpiod_to_irq() return negative for NO_IRQ
  gpio: xgene: implement .get_direction()
  gpio: xgene: Enable ACPI support for X-Gene GFC GPIO driver
  gpio: tegra: Implement gpio_get_direction callback
  gpio: set up initial state from .get_direction()
  gpio: rename gpio-generic.c into gpio-mmio.c
  gpio: generic: fix GPIO_GENERIC_PLATFORM is set to module case
  gpio: dwapb: add gpio-signaled acpi event support
  gpio: dwapb: convert device node to fwnode
  gpio: dwapb: remove name from dwapb_port_property
  gpio/qoriq: select IRQ_DOMAIN
  ...

6 files changed, 32 insertions, 57 deletions

diff --git a/sound/soc/codecs/rt5677.c b/sound/soc/codecs/rt5677.c
index 33e290b..6021226 100644
--- a/sound/soc/codecs/rt5677.c
+++ b/sound/soc/codecs/rt5677.c
@@ -4520,14 +4520,9 @@ static int rt5677_set_bias_level(struct snd_soc_codec *codec,
 }
 
 #ifdef CONFIG_GPIOLIB
-static inline struct rt5677_priv *gpio_to_rt5677(struct gpio_chip *chip)
-{
-	return container_of(chip, struct rt5677_priv, gpio_chip);
-}
-
 static void rt5677_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 {
-	struct rt5677_priv *rt5677 = gpio_to_rt5677(chip);
+	struct rt5677_priv *rt5677 = gpiochip_get_data(chip);
 
 	switch (offset) {
 	case RT5677_GPIO1 ... RT5677_GPIO5:
@@ -4548,7 +4543,7 @@ static void rt5677_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 static int rt5677_gpio_direction_out(struct gpio_chip *chip,
 				     unsigned offset, int value)
 {
-	struct rt5677_priv *rt5677 = gpio_to_rt5677(chip);
+	struct rt5677_priv *rt5677 = gpiochip_get_data(chip);
 
 	switch (offset) {
 	case RT5677_GPIO1 ... RT5677_GPIO5:
@@ -4572,7 +4567,7 @@ static int rt5677_gpio_direction_out(struct gpio_chip *chip,
 
 static int rt5677_gpio_get(struct gpio_chip *chip, unsigned offset)
 {
-	struct rt5677_priv *rt5677 = gpio_to_rt5677(chip);
+	struct rt5677_priv *rt5677 = gpiochip_get_data(chip);
 	int value, ret;
 
 	ret = regmap_read(rt5677->regmap, RT5677_GPIO_ST, &value);
@@ -4584,7 +4579,7 @@ static int rt5677_gpio_get(struct gpio_chip *chip, unsigned offset)
 
 static int rt5677_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
 {
-	struct rt5677_priv *rt5677 = gpio_to_rt5677(chip);
+	struct rt5677_priv *rt5677 = gpiochip_get_data(chip);
 
 	switch (offset) {
 	case RT5677_GPIO1 ... RT5677_GPIO5:
@@ -4638,7 +4633,7 @@ static void rt5677_gpio_config(struct rt5677_priv *rt5677, unsigned offset,
 
 static int rt5677_to_irq(struct gpio_chip *chip, unsigned offset)
 {
-	struct rt5677_priv *rt5677 = gpio_to_rt5677(chip);
+	struct rt5677_priv *rt5677 = gpiochip_get_data(chip);
 	struct regmap_irq_chip_data *data = rt5677->irq_data;
 	int irq;
 
@@ -4697,7 +4692,7 @@ static void rt5677_init_gpio(struct i2c_client *i2c)
 	rt5677->gpio_chip.parent = &i2c->dev;
 	rt5677->gpio_chip.base = -1;
 
-	ret = gpiochip_add(&rt5677->gpio_chip);
+	ret = gpiochip_add_data(&rt5677->gpio_chip, rt5677);
 	if (ret != 0)
 		dev_err(&i2c->dev, "Failed to add GPIOs: %d\n", ret);
 }
diff --git a/sound/soc/codecs/wm5100.c b/sound/soc/codecs/wm5100.c
index 171a23d..512a9d2 100644
--- a/sound/soc/codecs/wm5100.c
+++ b/sound/soc/codecs/wm5100.c
@@ -17,6 +17,7 @@
 #include <linux/export.h>
 #include <linux/pm.h>
 #include <linux/gcd.h>
+#include <linux/gpio/driver.h>
 #include <linux/gpio.h>
 #include <linux/i2c.h>
 #include <linux/pm_runtime.h>
@@ -2236,14 +2237,9 @@ static irqreturn_t wm5100_edge_irq(int irq, void *data)
 }
 
 #ifdef CONFIG_GPIOLIB
-static inline struct wm5100_priv *gpio_to_wm5100(struct gpio_chip *chip)
-{
-	return container_of(chip, struct wm5100_priv, gpio_chip);
-}
-
 static void wm5100_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 {
-	struct wm5100_priv *wm5100 = gpio_to_wm5100(chip);
+	struct wm5100_priv *wm5100 = gpiochip_get_data(chip);
 
 	regmap_update_bits(wm5100->regmap, WM5100_GPIO_CTRL_1 + offset,
 			   WM5100_GP1_LVL, !!value << WM5100_GP1_LVL_SHIFT);
@@ -2252,7 +2248,7 @@ static void wm5100_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 static int wm5100_gpio_direction_out(struct gpio_chip *chip,
 				     unsigned offset, int value)
 {
-	struct wm5100_priv *wm5100 = gpio_to_wm5100(chip);
+	struct wm5100_priv *wm5100 = gpiochip_get_data(chip);
 	int val, ret;
 
 	val = (1 << WM5100_GP1_FN_SHIFT) | (!!value << WM5100_GP1_LVL_SHIFT);
@@ -2268,7 +2264,7 @@ static int wm5100_gpio_direction_out(struct gpio_chip *chip,
 
 static int wm5100_gpio_get(struct gpio_chip *chip, unsigned offset)
 {
-	struct wm5100_priv *wm5100 = gpio_to_wm5100(chip);
+	struct wm5100_priv *wm5100 = gpiochip_get_data(chip);
 	unsigned int reg;
 	int ret;
 
@@ -2281,7 +2277,7 @@ static int wm5100_gpio_get(struct gpio_chip *chip, unsigned offset)
 
 static int wm5100_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
 {
-	struct wm5100_priv *wm5100 = gpio_to_wm5100(chip);
+	struct wm5100_priv *wm5100 = gpiochip_get_data(chip);
 
 	return regmap_update_bits(wm5100->regmap, WM5100_GPIO_CTRL_1 + offset,
 				  WM5100_GP1_FN_MASK | WM5100_GP1_DIR,
@@ -2313,7 +2309,7 @@ static void wm5100_init_gpio(struct i2c_client *i2c)
 	else
 		wm5100->gpio_chip.base = -1;
 
-	ret = gpiochip_add(&wm5100->gpio_chip);
+	ret = gpiochip_add_data(&wm5100->gpio_chip, wm5100);
 	if (ret != 0)
 		dev_err(&i2c->dev, "Failed to add GPIOs: %d\n", ret);
 }
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index a82b8bc..a26ca49 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -20,7 +20,7 @@
 #include <linux/init.h>
 #include <linux/completion.h>
 #include <linux/delay.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 #include <linux/pm.h>
 #include <linux/i2c.h>
 #include <linux/regmap.h>
@@ -1766,11 +1766,6 @@ static int wm8903_resume(struct snd_soc_codec *codec)
 }
 
 #ifdef CONFIG_GPIOLIB
-static inline struct wm8903_priv *gpio_to_wm8903(struct gpio_chip *chip)
-{
-	return container_of(chip, struct wm8903_priv, gpio_chip);
-}
-
 static int wm8903_gpio_request(struct gpio_chip *chip, unsigned offset)
 {
 	if (offset >= WM8903_NUM_GPIO)
@@ -1781,7 +1776,7 @@ static int wm8903_gpio_request(struct gpio_chip *chip, unsigned offset)
 
 static int wm8903_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
 {
-	struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
+	struct wm8903_priv *wm8903 = gpiochip_get_data(chip);
 	unsigned int mask, val;
 	int ret;
 
@@ -1799,7 +1794,7 @@ static int wm8903_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
 
 static int wm8903_gpio_get(struct gpio_chip *chip, unsigned offset)
 {
-	struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
+	struct wm8903_priv *wm8903 = gpiochip_get_data(chip);
 	unsigned int reg;
 
 	regmap_read(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset, &reg);
@@ -1810,7 +1805,7 @@ static int wm8903_gpio_get(struct gpio_chip *chip, unsigned offset)
 static int wm8903_gpio_direction_out(struct gpio_chip *chip,
 				     unsigned offset, int value)
 {
-	struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
+	struct wm8903_priv *wm8903 = gpiochip_get_data(chip);
 	unsigned int mask, val;
 	int ret;
 
@@ -1828,7 +1823,7 @@ static int wm8903_gpio_direction_out(struct gpio_chip *chip,
 
 static void wm8903_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 {
-	struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
+	struct wm8903_priv *wm8903 = gpiochip_get_data(chip);
 
 	regmap_update_bits(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset,
 			   WM8903_GP1_LVL_MASK,
@@ -1860,7 +1855,7 @@ static void wm8903_init_gpio(struct wm8903_priv *wm8903)
 	else
 		wm8903->gpio_chip.base = -1;
 
-	ret = gpiochip_add(&wm8903->gpio_chip);
+	ret = gpiochip_add_data(&wm8903->gpio_chip, wm8903);
 	if (ret != 0)
 		dev_err(wm8903->dev, "Failed to add GPIOs: %d\n", ret);
 }
diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 720a14e..fc164d6 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -18,7 +18,7 @@
 #include <linux/delay.h>
 #include <linux/pm.h>
 #include <linux/gcd.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 #include <linux/i2c.h>
 #include <linux/input.h>
 #include <linux/pm_runtime.h>
@@ -3307,14 +3307,9 @@ static void wm8962_set_gpio_mode(struct wm8962_priv *wm8962, int gpio)
 }
 
 #ifdef CONFIG_GPIOLIB
-static inline struct wm8962_priv *gpio_to_wm8962(struct gpio_chip *chip)
-{
-	return container_of(chip, struct wm8962_priv, gpio_chip);
-}
-
 static int wm8962_gpio_request(struct gpio_chip *chip, unsigned offset)
 {
-	struct wm8962_priv *wm8962 = gpio_to_wm8962(chip);
+	struct wm8962_priv *wm8962 = gpiochip_get_data(chip);
 
 	/* The WM8962 GPIOs aren't linearly numbered.  For simplicity
 	 * we export linear numbers and error out if the unsupported
@@ -3337,7 +3332,7 @@ static int wm8962_gpio_request(struct gpio_chip *chip, unsigned offset)
 
 static void wm8962_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 {
-	struct wm8962_priv *wm8962 = gpio_to_wm8962(chip);
+	struct wm8962_priv *wm8962 = gpiochip_get_data(chip);
 	struct snd_soc_codec *codec = wm8962->codec;
 
 	snd_soc_update_bits(codec, WM8962_GPIO_BASE + offset,
@@ -3347,7 +3342,7 @@ static void wm8962_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 static int wm8962_gpio_direction_out(struct gpio_chip *chip,
 				     unsigned offset, int value)
 {
-	struct wm8962_priv *wm8962 = gpio_to_wm8962(chip);
+	struct wm8962_priv *wm8962 = gpiochip_get_data(chip);
 	struct snd_soc_codec *codec = wm8962->codec;
 	int ret, val;
 
@@ -3386,7 +3381,7 @@ static void wm8962_init_gpio(struct snd_soc_codec *codec)
 	else
 		wm8962->gpio_chip.base = -1;
 
-	ret = gpiochip_add(&wm8962->gpio_chip);
+	ret = gpiochip_add_data(&wm8962->gpio_chip, wm8962);
 	if (ret != 0)
 		dev_err(codec->dev, "Failed to add GPIOs: %d\n", ret);
 }
diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c
index f99b34f..a730442 100644
--- a/sound/soc/codecs/wm8996.c
+++ b/sound/soc/codecs/wm8996.c
@@ -17,6 +17,7 @@
 #include <linux/delay.h>
 #include <linux/pm.h>
 #include <linux/gcd.h>
+#include <linux/gpio/driver.h>
 #include <linux/gpio.h>
 #include <linux/i2c.h>
 #include <linux/regmap.h>
@@ -2139,14 +2140,9 @@ static int wm8996_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
 }
 
 #ifdef CONFIG_GPIOLIB
-static inline struct wm8996_priv *gpio_to_wm8996(struct gpio_chip *chip)
-{
-	return container_of(chip, struct wm8996_priv, gpio_chip);
-}
-
 static void wm8996_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 {
-	struct wm8996_priv *wm8996 = gpio_to_wm8996(chip);
+	struct wm8996_priv *wm8996 = gpiochip_get_data(chip);
 
 	regmap_update_bits(wm8996->regmap, WM8996_GPIO_1 + offset,
 			   WM8996_GP1_LVL, !!value << WM8996_GP1_LVL_SHIFT);
@@ -2155,7 +2151,7 @@ static void wm8996_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 static int wm8996_gpio_direction_out(struct gpio_chip *chip,
 				     unsigned offset, int value)
 {
-	struct wm8996_priv *wm8996 = gpio_to_wm8996(chip);
+	struct wm8996_priv *wm8996 = gpiochip_get_data(chip);
 	int val;
 
 	val = (1 << WM8996_GP1_FN_SHIFT) | (!!value << WM8996_GP1_LVL_SHIFT);
@@ -2167,7 +2163,7 @@ static int wm8996_gpio_direction_out(struct gpio_chip *chip,
 
 static int wm8996_gpio_get(struct gpio_chip *chip, unsigned offset)
 {
-	struct wm8996_priv *wm8996 = gpio_to_wm8996(chip);
+	struct wm8996_priv *wm8996 = gpiochip_get_data(chip);
 	unsigned int reg;
 	int ret;
 
@@ -2180,7 +2176,7 @@ static int wm8996_gpio_get(struct gpio_chip *chip, unsigned offset)
 
 static int wm8996_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
 {
-	struct wm8996_priv *wm8996 = gpio_to_wm8996(chip);
+	struct wm8996_priv *wm8996 = gpiochip_get_data(chip);
 
 	return regmap_update_bits(wm8996->regmap, WM8996_GPIO_1 + offset,
 				  WM8996_GP1_FN_MASK | WM8996_GP1_DIR,
@@ -2211,7 +2207,7 @@ static void wm8996_init_gpio(struct wm8996_priv *wm8996)
 	else
 		wm8996->gpio_chip.base = -1;
 
-	ret = gpiochip_add(&wm8996->gpio_chip);
+	ret = gpiochip_add_data(&wm8996->gpio_chip, wm8996);
 	if (ret != 0)
 		dev_err(wm8996->dev, "Failed to add GPIOs: %d\n", ret);
 }
diff --git a/sound/soc/soc-ac97.c b/sound/soc/soc-ac97.c
index 7e0acd8..bc4a55b 100644
--- a/sound/soc/soc-ac97.c
+++ b/sound/soc/soc-ac97.c
@@ -59,8 +59,7 @@ static void soc_ac97_device_release(struct device *dev)
 #ifdef CONFIG_GPIOLIB
 static inline struct snd_soc_codec *gpio_to_codec(struct gpio_chip *chip)
 {
-	struct snd_ac97_gpio_priv *gpio_priv =
-		container_of(chip, struct snd_ac97_gpio_priv, gpio_chip);
+	struct snd_ac97_gpio_priv *gpio_priv = gpiochip_get_data(chip);
 
 	return gpio_priv->codec;
 }
@@ -98,8 +97,7 @@ static int snd_soc_ac97_gpio_get(struct gpio_chip *chip, unsigned offset)
 static void snd_soc_ac97_gpio_set(struct gpio_chip *chip, unsigned offset,
 				  int value)
 {
-	struct snd_ac97_gpio_priv *gpio_priv =
-		container_of(chip, struct snd_ac97_gpio_priv, gpio_chip);
+	struct snd_ac97_gpio_priv *gpio_priv = gpiochip_get_data(chip);
 	struct snd_soc_codec *codec = gpio_to_codec(chip);
 
 	gpio_priv->gpios_set &= ~(1 << offset);
@@ -145,7 +143,7 @@ static int snd_soc_ac97_init_gpio(struct snd_ac97 *ac97,
 	gpio_priv->gpio_chip.parent = codec->dev;
 	gpio_priv->gpio_chip.base = -1;
 
-	ret = gpiochip_add(&gpio_priv->gpio_chip);
+	ret = gpiochip_add_data(&gpio_priv->gpio_chip, gpio_priv);
 	if (ret != 0)
 		dev_err(codec->dev, "Failed to add GPIOs: %d\n", ret);
 	return ret;