* [PATCH 004/182] gpio: generic: factor into gpio_chip struct
@ 2015-12-09 13:12 ` Linus Walleij
0 siblings, 0 replies; 18+ messages in thread
From: Linus Walleij @ 2015-12-09 13:12 UTC (permalink / raw)
To: linux-gpio, Johan Hovold, Alexandre Courbot, Michael Welling,
Markus Pargmann, Anton Vorontsov
Cc: Linus Walleij, arm, Lee Jones, Alexander Shiyan, Shawn Guo,
Sascha Hauer, Tony Lindgren, Kukjin Kim, Krzysztof Kozlowski,
Alexandre Courbot, Gregory Fong, Brian Norris, Florian Fainelli,
Liviu Dudau, Sudeep Holla, Lorenzo Pieralisi, Nicolas Pitre,
Olof Johansson, Vladimir Zapolskiy, Rabin Vincent,
linux-arm-kernel, linux-omap, linux-samsung-soc,
bcm-kernel-feedback-list
The separate struct bgpio_chip has been a pain to handle, both
by being confusingly similar in name to struct gpio_chip and
for being contained inside a struct so that struct gpio_chip
is contained in a struct contained in a struct, making several
steps of dereferencing necessary.
Make things simpler: include the fields directly into
<linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
some of the member variables with bgpio_* and add proper
kerneldoc while we're at it.
Modify all users to handle the change and use a struct
gpio_chip directly. And while we're at it: replace all
container_of() dereferencing by gpiochip_get_data() and
registering the gpio_chip with gpiochip_add_data().
Cc: arm@kernel.org
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Alexander Shiyan <shc_work@mail.ru>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Gregory Fong <gregory.0xf0@gmail.com>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Olof Johansson <olof@lixom.net>
Cc: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Cc: Rabin Vincent <rabin@rab.in>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-omap@vger.kernel.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: bcm-kernel-feedback-list@broadcom.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
ARM SoC folks and Lee: it would be great if you could
ACK the few lines hitting arch/arm/* and drivers/mfd/* in this
so I can take it through the GPIO tree.
---
arch/arm/mach-clps711x/board-autcpu12.c | 2 +-
arch/arm/mach-clps711x/board-p720t.c | 2 +-
arch/arm/mach-imx/mach-mx21ads.c | 2 +-
arch/arm/mach-omap1/board-ams-delta.c | 2 +-
arch/arm/mach-s3c64xx/mach-crag6410.c | 2 +-
drivers/gpio/gpio-74xx-mmio.c | 37 ++--
drivers/gpio/gpio-brcmstb.c | 80 ++++-----
drivers/gpio/gpio-clps711x.c | 28 +--
drivers/gpio/gpio-dwapb.c | 92 +++++-----
drivers/gpio/gpio-ep93xx.c | 25 +--
drivers/gpio/gpio-etraxfs.c | 49 +++---
drivers/gpio/gpio-ge.c | 24 +--
drivers/gpio/gpio-generic.c | 292 +++++++++++++++-----------------
drivers/gpio/gpio-grgpio.c | 73 ++++----
drivers/gpio/gpio-moxart.c | 29 ++--
drivers/gpio/gpio-mxc.c | 27 ++-
drivers/gpio/gpio-mxs.c | 33 ++--
drivers/gpio/gpio-sodaville.c | 13 +-
drivers/gpio/gpio-xgene-sb.c | 40 ++---
drivers/mfd/vexpress-sysreg.c | 8 +-
include/linux/basic_mmio_gpio.h | 80 ---------
include/linux/gpio/driver.h | 54 ++++++
22 files changed, 442 insertions(+), 552 deletions(-)
delete mode 100644 include/linux/basic_mmio_gpio.h
diff --git a/arch/arm/mach-clps711x/board-autcpu12.c b/arch/arm/mach-clps711x/board-autcpu12.c
index c3d964221767..ba3d7d1b28f8 100644
--- a/arch/arm/mach-clps711x/board-autcpu12.c
+++ b/arch/arm/mach-clps711x/board-autcpu12.c
@@ -31,7 +31,7 @@
#include <linux/mtd/partitions.h>
#include <linux/mtd/nand-gpio.h>
#include <linux/platform_device.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <mach/hardware.h>
#include <asm/sizes.h>
diff --git a/arch/arm/mach-clps711x/board-p720t.c b/arch/arm/mach-clps711x/board-p720t.c
index e68dd629bda2..80a16a8b3776 100644
--- a/arch/arm/mach-clps711x/board-p720t.c
+++ b/arch/arm/mach-clps711x/board-p720t.c
@@ -28,7 +28,7 @@
#include <linux/leds.h>
#include <linux/sizes.h>
#include <linux/backlight.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/platform_device.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/nand-gpio.h>
diff --git a/arch/arm/mach-imx/mach-mx21ads.c b/arch/arm/mach-imx/mach-mx21ads.c
index 703ce31d7379..9986f9a697c8 100644
--- a/arch/arm/mach-imx/mach-mx21ads.c
+++ b/arch/arm/mach-imx/mach-mx21ads.c
@@ -17,7 +17,7 @@
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/physmap.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/gpio.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
diff --git a/arch/arm/mach-omap1/board-ams-delta.c b/arch/arm/mach-omap1/board-ams-delta.c
index a95499ea8706..97e66558c238 100644
--- a/arch/arm/mach-omap1/board-ams-delta.c
+++ b/arch/arm/mach-omap1/board-ams-delta.c
@@ -11,7 +11,7 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/init.h>
diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c
index f776adcdaee8..723f47fefc81 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -29,7 +29,7 @@
#include <linux/pwm_backlight.h>
#include <linux/dm9000.h>
#include <linux/gpio_keys.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/spi/spi.h>
#include <linux/platform_data/pca953x.h>
diff --git a/drivers/gpio/gpio-74xx-mmio.c b/drivers/gpio/gpio-74xx-mmio.c
index 6ed7c0fb3378..464cb57b07c7 100644
--- a/drivers/gpio/gpio-74xx-mmio.c
+++ b/drivers/gpio/gpio-74xx-mmio.c
@@ -10,10 +10,9 @@
*/
#include <linux/err.h>
-#include <linux/gpio.h>
#include <linux/module.h>
#include <linux/of_device.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/platform_device.h>
#define MMIO_74XX_DIR_IN (0 << 8)
@@ -21,7 +20,7 @@
#define MMIO_74XX_BIT_CNT(x) ((x) & 0xff)
struct mmio_74xx_gpio_priv {
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
unsigned flags;
};
@@ -78,30 +77,23 @@ static const struct of_device_id mmio_74xx_gpio_ids[] = {
};
MODULE_DEVICE_TABLE(of, mmio_74xx_gpio_ids);
-static inline struct mmio_74xx_gpio_priv *to_74xx_gpio(struct gpio_chip *gc)
-{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return container_of(bgc, struct mmio_74xx_gpio_priv, bgc);
-}
-
static int mmio_74xx_get_direction(struct gpio_chip *gc, unsigned offset)
{
- struct mmio_74xx_gpio_priv *priv = to_74xx_gpio(gc);
+ struct mmio_74xx_gpio_priv *priv = gpiochip_get_data(gc);
- return (priv->flags & MMIO_74XX_DIR_OUT) ? GPIOF_DIR_OUT : GPIOF_DIR_IN;
+ return !(priv->flags & MMIO_74XX_DIR_OUT);
}
static int mmio_74xx_dir_in(struct gpio_chip *gc, unsigned int gpio)
{
- struct mmio_74xx_gpio_priv *priv = to_74xx_gpio(gc);
+ struct mmio_74xx_gpio_priv *priv = gpiochip_get_data(gc);
return (priv->flags & MMIO_74XX_DIR_OUT) ? -ENOTSUPP : 0;
}
static int mmio_74xx_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
{
- struct mmio_74xx_gpio_priv *priv = to_74xx_gpio(gc);
+ struct mmio_74xx_gpio_priv *priv = gpiochip_get_data(gc);
if (priv->flags & MMIO_74XX_DIR_OUT) {
gc->set(gc, gpio, val);
@@ -131,28 +123,29 @@ static int mmio_74xx_gpio_probe(struct platform_device *pdev)
priv->flags = (uintptr_t) of_id->data;
- err = bgpio_init(&priv->bgc, &pdev->dev,
+ err = bgpio_init(&priv->gc, &pdev->dev,
DIV_ROUND_UP(MMIO_74XX_BIT_CNT(priv->flags), 8),
dat, NULL, NULL, NULL, NULL, 0);
if (err)
return err;
- priv->bgc.gc.direction_input = mmio_74xx_dir_in;
- priv->bgc.gc.direction_output = mmio_74xx_dir_out;
- priv->bgc.gc.get_direction = mmio_74xx_get_direction;
- priv->bgc.gc.ngpio = MMIO_74XX_BIT_CNT(priv->flags);
- priv->bgc.gc.owner = THIS_MODULE;
+ priv->gc.direction_input = mmio_74xx_dir_in;
+ priv->gc.direction_output = mmio_74xx_dir_out;
+ priv->gc.get_direction = mmio_74xx_get_direction;
+ priv->gc.ngpio = MMIO_74XX_BIT_CNT(priv->flags);
+ priv->gc.owner = THIS_MODULE;
platform_set_drvdata(pdev, priv);
- return gpiochip_add(&priv->bgc.gc);
+ return gpiochip_add_data(&priv->gc, priv);
}
static int mmio_74xx_gpio_remove(struct platform_device *pdev)
{
struct mmio_74xx_gpio_priv *priv = platform_get_drvdata(pdev);
- return bgpio_remove(&priv->bgc);
+ gpiochip_remove(&priv->gc);
+ return 0;
}
static struct platform_driver mmio_74xx_gpio_driver = {
diff --git a/drivers/gpio/gpio-brcmstb.c b/drivers/gpio/gpio-brcmstb.c
index 4c64627c6bb5..dc3f0395693b 100644
--- a/drivers/gpio/gpio-brcmstb.c
+++ b/drivers/gpio/gpio-brcmstb.c
@@ -16,7 +16,6 @@
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/module.h>
-#include <linux/basic_mmio_gpio.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/interrupt.h>
@@ -35,7 +34,7 @@
struct brcmstb_gpio_bank {
struct list_head node;
int id;
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
struct brcmstb_gpio_priv *parent_priv;
u32 width;
struct irq_chip irq_chip;
@@ -57,37 +56,30 @@ struct brcmstb_gpio_priv {
/* assumes MAX_GPIO_PER_BANK is a multiple of 2 */
#define GPIO_BIT(gpio) ((gpio) & (MAX_GPIO_PER_BANK - 1))
-static inline struct brcmstb_gpio_bank *
-brcmstb_gpio_gc_to_bank(struct gpio_chip *gc)
-{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- return container_of(bgc, struct brcmstb_gpio_bank, bgc);
-}
-
static inline struct brcmstb_gpio_priv *
brcmstb_gpio_gc_to_priv(struct gpio_chip *gc)
{
- struct brcmstb_gpio_bank *bank = brcmstb_gpio_gc_to_bank(gc);
+ struct brcmstb_gpio_bank *bank = gpiochip_get_data(gc);
return bank->parent_priv;
}
static void brcmstb_gpio_set_imask(struct brcmstb_gpio_bank *bank,
unsigned int offset, bool enable)
{
- struct bgpio_chip *bgc = &bank->bgc;
+ struct gpio_chip *gc = &bank->gc;
struct brcmstb_gpio_priv *priv = bank->parent_priv;
- u32 mask = bgc->pin2mask(bgc, offset);
+ u32 mask = gc->pin2mask(gc, offset);
u32 imask;
unsigned long flags;
- spin_lock_irqsave(&bgc->lock, flags);
- imask = bgc->read_reg(priv->reg_base + GIO_MASK(bank->id));
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
+ imask = gc->read_reg(priv->reg_base + GIO_MASK(bank->id));
if (enable)
imask |= mask;
else
imask &= ~mask;
- bgc->write_reg(priv->reg_base + GIO_MASK(bank->id), imask);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ gc->write_reg(priv->reg_base + GIO_MASK(bank->id), imask);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
/* -------------------- IRQ chip functions -------------------- */
@@ -95,7 +87,7 @@ static void brcmstb_gpio_set_imask(struct brcmstb_gpio_bank *bank,
static void brcmstb_gpio_irq_mask(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
- struct brcmstb_gpio_bank *bank = brcmstb_gpio_gc_to_bank(gc);
+ struct brcmstb_gpio_bank *bank = gpiochip_get_data(gc);
brcmstb_gpio_set_imask(bank, d->hwirq, false);
}
@@ -103,7 +95,7 @@ static void brcmstb_gpio_irq_mask(struct irq_data *d)
static void brcmstb_gpio_irq_unmask(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
- struct brcmstb_gpio_bank *bank = brcmstb_gpio_gc_to_bank(gc);
+ struct brcmstb_gpio_bank *bank = gpiochip_get_data(gc);
brcmstb_gpio_set_imask(bank, d->hwirq, true);
}
@@ -111,7 +103,7 @@ static void brcmstb_gpio_irq_unmask(struct irq_data *d)
static int brcmstb_gpio_irq_set_type(struct irq_data *d, unsigned int type)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
- struct brcmstb_gpio_bank *bank = brcmstb_gpio_gc_to_bank(gc);
+ struct brcmstb_gpio_bank *bank = gpiochip_get_data(gc);
struct brcmstb_gpio_priv *priv = bank->parent_priv;
u32 mask = BIT(d->hwirq);
u32 edge_insensitive, iedge_insensitive;
@@ -149,23 +141,23 @@ static int brcmstb_gpio_irq_set_type(struct irq_data *d, unsigned int type)
return -EINVAL;
}
- spin_lock_irqsave(&bank->bgc.lock, flags);
+ spin_lock_irqsave(&bank->gc.bgpio_lock, flags);
- iedge_config = bank->bgc.read_reg(priv->reg_base +
+ iedge_config = bank->gc.read_reg(priv->reg_base +
GIO_EC(bank->id)) & ~mask;
- iedge_insensitive = bank->bgc.read_reg(priv->reg_base +
+ iedge_insensitive = bank->gc.read_reg(priv->reg_base +
GIO_EI(bank->id)) & ~mask;
- ilevel = bank->bgc.read_reg(priv->reg_base +
+ ilevel = bank->gc.read_reg(priv->reg_base +
GIO_LEVEL(bank->id)) & ~mask;
- bank->bgc.write_reg(priv->reg_base + GIO_EC(bank->id),
+ bank->gc.write_reg(priv->reg_base + GIO_EC(bank->id),
iedge_config | edge_config);
- bank->bgc.write_reg(priv->reg_base + GIO_EI(bank->id),
+ bank->gc.write_reg(priv->reg_base + GIO_EI(bank->id),
iedge_insensitive | edge_insensitive);
- bank->bgc.write_reg(priv->reg_base + GIO_LEVEL(bank->id),
+ bank->gc.write_reg(priv->reg_base + GIO_LEVEL(bank->id),
ilevel | level);
- spin_unlock_irqrestore(&bank->bgc.lock, flags);
+ spin_unlock_irqrestore(&bank->gc.bgpio_lock, flags);
return 0;
}
@@ -210,29 +202,29 @@ static irqreturn_t brcmstb_gpio_wake_irq_handler(int irq, void *data)
static void brcmstb_gpio_irq_bank_handler(struct brcmstb_gpio_bank *bank)
{
struct brcmstb_gpio_priv *priv = bank->parent_priv;
- struct irq_domain *irq_domain = bank->bgc.gc.irqdomain;
+ struct irq_domain *irq_domain = bank->gc.irqdomain;
void __iomem *reg_base = priv->reg_base;
unsigned long status;
unsigned long flags;
- spin_lock_irqsave(&bank->bgc.lock, flags);
- while ((status = bank->bgc.read_reg(reg_base + GIO_STAT(bank->id)) &
- bank->bgc.read_reg(reg_base + GIO_MASK(bank->id)))) {
+ spin_lock_irqsave(&bank->gc.bgpio_lock, flags);
+ while ((status = bank->gc.read_reg(reg_base + GIO_STAT(bank->id)) &
+ bank->gc.read_reg(reg_base + GIO_MASK(bank->id)))) {
int bit;
for_each_set_bit(bit, &status, 32) {
- u32 stat = bank->bgc.read_reg(reg_base +
+ u32 stat = bank->gc.read_reg(reg_base +
GIO_STAT(bank->id));
if (bit >= bank->width)
dev_warn(&priv->pdev->dev,
"IRQ for invalid GPIO (bank=%d, offset=%d)\n",
bank->id, bit);
- bank->bgc.write_reg(reg_base + GIO_STAT(bank->id),
+ bank->gc.write_reg(reg_base + GIO_STAT(bank->id),
stat | BIT(bit));
generic_handle_irq(irq_find_mapping(irq_domain, bit));
}
}
- spin_unlock_irqrestore(&bank->bgc.lock, flags);
+ spin_unlock_irqrestore(&bank->gc.bgpio_lock, flags);
}
/* Each UPG GIO block has one IRQ for all banks */
@@ -303,9 +295,7 @@ static int brcmstb_gpio_remove(struct platform_device *pdev)
*/
list_for_each(pos, &priv->bank_list) {
bank = list_entry(pos, struct brcmstb_gpio_bank, node);
- ret = bgpio_remove(&bank->bgc);
- if (ret)
- dev_err(&pdev->dev, "gpiochip_remove fail in cleanup\n");
+ gpiochip_remove(&bank->gc);
}
if (priv->reboot_notifier.notifier_call) {
ret = unregister_reboot_notifier(&priv->reboot_notifier);
@@ -320,7 +310,7 @@ static int brcmstb_gpio_of_xlate(struct gpio_chip *gc,
const struct of_phandle_args *gpiospec, u32 *flags)
{
struct brcmstb_gpio_priv *priv = brcmstb_gpio_gc_to_priv(gc);
- struct brcmstb_gpio_bank *bank = brcmstb_gpio_gc_to_bank(gc);
+ struct brcmstb_gpio_bank *bank = gpiochip_get_data(gc);
int offset;
if (gc->of_gpio_n_cells != 2) {
@@ -398,9 +388,9 @@ static int brcmstb_gpio_irq_setup(struct platform_device *pdev,
if (priv->can_wake)
bank->irq_chip.irq_set_wake = brcmstb_gpio_irq_set_wake;
- gpiochip_irqchip_add(&bank->bgc.gc, &bank->irq_chip, 0,
+ gpiochip_irqchip_add(&bank->gc, &bank->irq_chip, 0,
handle_simple_irq, IRQ_TYPE_NONE);
- gpiochip_set_chained_irqchip(&bank->bgc.gc, &bank->irq_chip,
+ gpiochip_set_chained_irqchip(&bank->gc, &bank->irq_chip,
priv->parent_irq, brcmstb_gpio_irq_handler);
return 0;
@@ -451,7 +441,6 @@ static int brcmstb_gpio_probe(struct platform_device *pdev)
of_property_for_each_u32(np, "brcm,gpio-bank-widths", prop, p,
bank_width) {
struct brcmstb_gpio_bank *bank;
- struct bgpio_chip *bgc;
struct gpio_chip *gc;
bank = devm_kzalloc(dev, sizeof(*bank), GFP_KERNEL);
@@ -473,8 +462,8 @@ static int brcmstb_gpio_probe(struct platform_device *pdev)
* Regs are 4 bytes wide, have data reg, no set/clear regs,
* and direction bits have 0 = output and 1 = input
*/
- bgc = &bank->bgc;
- err = bgpio_init(bgc, dev, 4,
+ gc = &bank->gc;
+ err = bgpio_init(gc, dev, 4,
reg_base + GIO_DATA(bank->id),
NULL, NULL, NULL,
reg_base + GIO_IODIR(bank->id), 0);
@@ -483,7 +472,6 @@ static int brcmstb_gpio_probe(struct platform_device *pdev)
goto fail;
}
- gc = &bgc->gc;
gc->of_node = np;
gc->owner = THIS_MODULE;
gc->label = np->full_name;
@@ -497,9 +485,9 @@ static int brcmstb_gpio_probe(struct platform_device *pdev)
* Mask all interrupts by default, since wakeup interrupts may
* be retained from S5 cold boot
*/
- bank->bgc.write_reg(reg_base + GIO_MASK(bank->id), 0);
+ gc->write_reg(reg_base + GIO_MASK(bank->id), 0);
- err = gpiochip_add(gc);
+ err = gpiochip_add_data(gc, bank);
if (err) {
dev_err(dev, "Could not add gpiochip for bank %d\n",
bank->id);
diff --git a/drivers/gpio/gpio-clps711x.c b/drivers/gpio/gpio-clps711x.c
index b6908f1ff1ab..c84f9551f108 100644
--- a/drivers/gpio/gpio-clps711x.c
+++ b/drivers/gpio/gpio-clps711x.c
@@ -10,24 +10,23 @@
*/
#include <linux/err.h>
-#include <linux/gpio.h>
#include <linux/module.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/platform_device.h>
static int clps711x_gpio_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
void __iomem *dat, *dir;
- struct bgpio_chip *bgc;
+ struct gpio_chip *gc;
struct resource *res;
int err, id = np ? of_alias_get_id(np, "gpio") : pdev->id;
if ((id < 0) || (id > 4))
return -ENODEV;
- bgc = devm_kzalloc(&pdev->dev, sizeof(*bgc), GFP_KERNEL);
- if (!bgc)
+ gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
+ if (!gc)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -43,11 +42,11 @@ static int clps711x_gpio_probe(struct platform_device *pdev)
switch (id) {
case 3:
/* PORTD is inverted logic for direction register */
- err = bgpio_init(bgc, &pdev->dev, 1, dat, NULL, NULL,
+ err = bgpio_init(gc, &pdev->dev, 1, dat, NULL, NULL,
NULL, dir, 0);
break;
default:
- err = bgpio_init(bgc, &pdev->dev, 1, dat, NULL, NULL,
+ err = bgpio_init(gc, &pdev->dev, 1, dat, NULL, NULL,
dir, NULL, 0);
break;
}
@@ -58,24 +57,25 @@ static int clps711x_gpio_probe(struct platform_device *pdev)
switch (id) {
case 4:
/* PORTE is 3 lines only */
- bgc->gc.ngpio = 3;
+ gc->ngpio = 3;
break;
default:
break;
}
- bgc->gc.base = id * 8;
- bgc->gc.owner = THIS_MODULE;
- platform_set_drvdata(pdev, bgc);
+ gc->base = id * 8;
+ gc->owner = THIS_MODULE;
+ platform_set_drvdata(pdev, gc);
- return gpiochip_add(&bgc->gc);
+ return gpiochip_add_data(gc, NULL);
}
static int clps711x_gpio_remove(struct platform_device *pdev)
{
- struct bgpio_chip *bgc = platform_get_drvdata(pdev);
+ struct gpio_chip *gc = platform_get_drvdata(pdev);
- return bgpio_remove(bgc);
+ gpiochip_remove(gc);
+ return 0;
}
static const struct of_device_id __maybe_unused clps711x_gpio_ids[] = {
diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index fcd5b0acfc72..597de1ef497b 100644
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -7,7 +7,9 @@
*
* All enquiries to support@picochip.com
*/
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
+/* FIXME: for gpio_get_value(), replace this with direct register read */
+#include <linux/gpio.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/interrupt.h>
@@ -66,7 +68,7 @@ struct dwapb_context {
#endif
struct dwapb_gpio_port {
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
bool is_registered;
struct dwapb_gpio *gpio;
#ifdef CONFIG_PM_SLEEP
@@ -83,33 +85,26 @@ struct dwapb_gpio {
struct irq_domain *domain;
};
-static inline struct dwapb_gpio_port *
-to_dwapb_gpio_port(struct bgpio_chip *bgc)
-{
- return container_of(bgc, struct dwapb_gpio_port, bgc);
-}
-
static inline u32 dwapb_read(struct dwapb_gpio *gpio, unsigned int offset)
{
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
void __iomem *reg_base = gpio->regs;
- return bgc->read_reg(reg_base + offset);
+ return gc->read_reg(reg_base + offset);
}
static inline void dwapb_write(struct dwapb_gpio *gpio, unsigned int offset,
u32 val)
{
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
void __iomem *reg_base = gpio->regs;
- bgc->write_reg(reg_base + offset, val);
+ gc->write_reg(reg_base + offset, val);
}
static int dwapb_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- struct dwapb_gpio_port *port = to_dwapb_gpio_port(bgc);
+ struct dwapb_gpio_port *port = gpiochip_get_data(gc);
struct dwapb_gpio *gpio = port->gpio;
return irq_find_mapping(gpio->domain, offset);
@@ -119,7 +114,7 @@ static void dwapb_toggle_trigger(struct dwapb_gpio *gpio, unsigned int offs)
{
u32 v = dwapb_read(gpio, GPIO_INT_POLARITY);
- if (gpio_get_value(gpio->ports[0].bgc.gc.base + offs))
+ if (gpio_get_value(gpio->ports[0].gc.base + offs))
v &= ~BIT(offs);
else
v |= BIT(offs);
@@ -162,39 +157,39 @@ static void dwapb_irq_enable(struct irq_data *d)
{
struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
struct dwapb_gpio *gpio = igc->private;
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
unsigned long flags;
u32 val;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
val = dwapb_read(gpio, GPIO_INTEN);
val |= BIT(d->hwirq);
dwapb_write(gpio, GPIO_INTEN, val);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
static void dwapb_irq_disable(struct irq_data *d)
{
struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
struct dwapb_gpio *gpio = igc->private;
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
unsigned long flags;
u32 val;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
val = dwapb_read(gpio, GPIO_INTEN);
val &= ~BIT(d->hwirq);
dwapb_write(gpio, GPIO_INTEN, val);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
static int dwapb_irq_reqres(struct irq_data *d)
{
struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
struct dwapb_gpio *gpio = igc->private;
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
- if (gpiochip_lock_as_irq(&bgc->gc, irqd_to_hwirq(d))) {
+ if (gpiochip_lock_as_irq(gc, irqd_to_hwirq(d))) {
dev_err(gpio->dev, "unable to lock HW IRQ %lu for IRQ\n",
irqd_to_hwirq(d));
return -EINVAL;
@@ -206,16 +201,16 @@ static void dwapb_irq_relres(struct irq_data *d)
{
struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
struct dwapb_gpio *gpio = igc->private;
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
- gpiochip_unlock_as_irq(&bgc->gc, irqd_to_hwirq(d));
+ gpiochip_unlock_as_irq(gc, irqd_to_hwirq(d));
}
static int dwapb_irq_set_type(struct irq_data *d, u32 type)
{
struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
struct dwapb_gpio *gpio = igc->private;
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
int bit = d->hwirq;
unsigned long level, polarity, flags;
@@ -223,7 +218,7 @@ static int dwapb_irq_set_type(struct irq_data *d, u32 type)
IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW))
return -EINVAL;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
level = dwapb_read(gpio, GPIO_INTTYPE_LEVEL);
polarity = dwapb_read(gpio, GPIO_INT_POLARITY);
@@ -254,7 +249,7 @@ static int dwapb_irq_set_type(struct irq_data *d, u32 type)
dwapb_write(gpio, GPIO_INTTYPE_LEVEL, level);
dwapb_write(gpio, GPIO_INT_POLARITY, polarity);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
@@ -262,13 +257,12 @@ static int dwapb_irq_set_type(struct irq_data *d, u32 type)
static int dwapb_gpio_set_debounce(struct gpio_chip *gc,
unsigned offset, unsigned debounce)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- struct dwapb_gpio_port *port = to_dwapb_gpio_port(bgc);
+ struct dwapb_gpio_port *port = gpiochip_get_data(gc);
struct dwapb_gpio *gpio = port->gpio;
unsigned long flags, val_deb;
- unsigned long mask = bgc->pin2mask(bgc, offset);
+ unsigned long mask = gc->pin2mask(gc, offset);
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
val_deb = dwapb_read(gpio, GPIO_PORTA_DEBOUNCE);
if (debounce)
@@ -276,7 +270,7 @@ static int dwapb_gpio_set_debounce(struct gpio_chip *gc,
else
dwapb_write(gpio, GPIO_PORTA_DEBOUNCE, val_deb & ~mask);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
@@ -295,7 +289,7 @@ static void dwapb_configure_irqs(struct dwapb_gpio *gpio,
struct dwapb_gpio_port *port,
struct dwapb_port_property *pp)
{
- struct gpio_chip *gc = &port->bgc.gc;
+ struct gpio_chip *gc = &port->gc;
struct device_node *node = pp->node;
struct irq_chip_generic *irq_gc = NULL;
unsigned int hwirq, ngpio = gc->ngpio;
@@ -369,13 +363,13 @@ static void dwapb_configure_irqs(struct dwapb_gpio *gpio,
for (hwirq = 0 ; hwirq < ngpio ; hwirq++)
irq_create_mapping(gpio->domain, hwirq);
- port->bgc.gc.to_irq = dwapb_gpio_to_irq;
+ port->gc.to_irq = dwapb_gpio_to_irq;
}
static void dwapb_irq_teardown(struct dwapb_gpio *gpio)
{
struct dwapb_gpio_port *port = &gpio->ports[0];
- struct gpio_chip *gc = &port->bgc.gc;
+ struct gpio_chip *gc = &port->gc;
unsigned int ngpio = gc->ngpio;
irq_hw_number_t hwirq;
@@ -412,7 +406,7 @@ static int dwapb_gpio_add_port(struct dwapb_gpio *gpio,
dirout = gpio->regs + GPIO_SWPORTA_DDR +
(pp->idx * GPIO_SWPORT_DDR_SIZE);
- err = bgpio_init(&port->bgc, gpio->dev, 4, dat, set, NULL, dirout,
+ err = bgpio_init(&port->gc, gpio->dev, 4, dat, set, NULL, dirout,
NULL, false);
if (err) {
dev_err(gpio->dev, "failed to init gpio chip for %s\n",
@@ -421,19 +415,19 @@ static int dwapb_gpio_add_port(struct dwapb_gpio *gpio,
}
#ifdef CONFIG_OF_GPIO
- port->bgc.gc.of_node = pp->node;
+ port->gc.of_node = pp->node;
#endif
- port->bgc.gc.ngpio = pp->ngpio;
- port->bgc.gc.base = pp->gpio_base;
+ port->gc.ngpio = pp->ngpio;
+ port->gc.base = pp->gpio_base;
/* Only port A support debounce */
if (pp->idx == 0)
- port->bgc.gc.set_debounce = dwapb_gpio_set_debounce;
+ port->gc.set_debounce = dwapb_gpio_set_debounce;
if (pp->irq)
dwapb_configure_irqs(gpio, port, pp);
- err = gpiochip_add(&port->bgc.gc);
+ err = gpiochip_add_data(&port->gc, port);
if (err)
dev_err(gpio->dev, "failed to register gpiochip for %s\n",
pp->name);
@@ -449,7 +443,7 @@ static void dwapb_gpio_unregister(struct dwapb_gpio *gpio)
for (m = 0; m < gpio->nr_ports; ++m)
if (gpio->ports[m].is_registered)
- gpiochip_remove(&gpio->ports[m].bgc.gc);
+ gpiochip_remove(&gpio->ports[m].gc);
}
static struct dwapb_platform_data *
@@ -591,11 +585,11 @@ static int dwapb_gpio_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct dwapb_gpio *gpio = platform_get_drvdata(pdev);
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
unsigned long flags;
int i;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
for (i = 0; i < gpio->nr_ports; i++) {
unsigned int offset;
unsigned int idx = gpio->ports[i].idx;
@@ -624,7 +618,7 @@ static int dwapb_gpio_suspend(struct device *dev)
dwapb_write(gpio, GPIO_INTMASK, 0xffffffff);
}
}
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
@@ -633,11 +627,11 @@ static int dwapb_gpio_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct dwapb_gpio *gpio = platform_get_drvdata(pdev);
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
unsigned long flags;
int i;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
for (i = 0; i < gpio->nr_ports; i++) {
unsigned int offset;
unsigned int idx = gpio->ports[i].idx;
@@ -666,7 +660,7 @@ static int dwapb_gpio_resume(struct device *dev)
dwapb_write(gpio, GPIO_PORTA_EOI, 0xffffffff);
}
}
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c
index 3e3947b35c83..ad279078fed7 100644
--- a/drivers/gpio/gpio-ep93xx.c
+++ b/drivers/gpio/gpio-ep93xx.c
@@ -16,10 +16,11 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/io.h>
-#include <linux/gpio.h>
#include <linux/irq.h>
#include <linux/slab.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
+/* FIXME: this is here for gpio_to_irq() - get rid of this! */
+#include <linux/gpio.h>
#include <mach/hardware.h>
#include <mach/gpio-ep93xx.h>
@@ -28,7 +29,7 @@
struct ep93xx_gpio {
void __iomem *mmio_base;
- struct bgpio_chip bgc[8];
+ struct gpio_chip gc[8];
};
/*************************************************************************
@@ -319,26 +320,26 @@ static int ep93xx_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
return 64 + gpio;
}
-static int ep93xx_gpio_add_bank(struct bgpio_chip *bgc, struct device *dev,
+static int ep93xx_gpio_add_bank(struct gpio_chip *gc, struct device *dev,
void __iomem *mmio_base, struct ep93xx_gpio_bank *bank)
{
void __iomem *data = mmio_base + bank->data;
void __iomem *dir = mmio_base + bank->dir;
int err;
- err = bgpio_init(bgc, dev, 1, data, NULL, NULL, dir, NULL, 0);
+ err = bgpio_init(gc, dev, 1, data, NULL, NULL, dir, NULL, 0);
if (err)
return err;
- bgc->gc.label = bank->label;
- bgc->gc.base = bank->base;
+ gc->label = bank->label;
+ gc->base = bank->base;
if (bank->has_debounce) {
- bgc->gc.set_debounce = ep93xx_gpio_set_debounce;
- bgc->gc.to_irq = ep93xx_gpio_to_irq;
+ gc->set_debounce = ep93xx_gpio_set_debounce;
+ gc->to_irq = ep93xx_gpio_to_irq;
}
- return gpiochip_add(&bgc->gc);
+ return gpiochip_add_data(gc, NULL);
}
static int ep93xx_gpio_probe(struct platform_device *pdev)
@@ -358,10 +359,10 @@ static int ep93xx_gpio_probe(struct platform_device *pdev)
return PTR_ERR(ep93xx_gpio->mmio_base);
for (i = 0; i < ARRAY_SIZE(ep93xx_gpio_banks); i++) {
- struct bgpio_chip *bgc = &ep93xx_gpio->bgc[i];
+ struct gpio_chip *gc = &ep93xx_gpio->gc[i];
struct ep93xx_gpio_bank *bank = &ep93xx_gpio_banks[i];
- if (ep93xx_gpio_add_bank(bgc, &pdev->dev,
+ if (ep93xx_gpio_add_bank(gc, &pdev->dev,
ep93xx_gpio->mmio_base, bank))
dev_warn(&pdev->dev, "Unable to add gpio bank %s\n",
bank->label);
diff --git a/drivers/gpio/gpio-etraxfs.c b/drivers/gpio/gpio-etraxfs.c
index 5c15dd12172d..00b022c9acb3 100644
--- a/drivers/gpio/gpio-etraxfs.c
+++ b/drivers/gpio/gpio-etraxfs.c
@@ -1,12 +1,10 @@
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/gpio.h>
#include <linux/gpio/driver.h>
#include <linux/of_gpio.h>
#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
-#include <linux/basic_mmio_gpio.h>
#define ETRAX_FS_rw_pa_dout 0
#define ETRAX_FS_r_pa_din 4
@@ -67,7 +65,7 @@ struct etraxfs_gpio_block {
};
struct etraxfs_gpio_chip {
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
struct etraxfs_gpio_block *block;
};
@@ -176,11 +174,6 @@ static const struct etraxfs_gpio_info etraxfs_gpio_artpec3 = {
.rw_intr_pins = ARTPEC3_rw_intr_pins,
};
-static struct etraxfs_gpio_chip *to_etraxfs(struct gpio_chip *gc)
-{
- return container_of(gc, struct etraxfs_gpio_chip, bgc.gc);
-}
-
static unsigned int etraxfs_gpio_chip_to_port(struct gpio_chip *gc)
{
return gc->label[0] - 'A';
@@ -220,13 +213,13 @@ static unsigned int etraxfs_gpio_to_group_irq(unsigned int gpio)
static unsigned int etraxfs_gpio_to_group_pin(struct etraxfs_gpio_chip *chip,
unsigned int gpio)
{
- return 4 * etraxfs_gpio_chip_to_port(&chip->bgc.gc) + gpio / 8;
+ return 4 * etraxfs_gpio_chip_to_port(&chip->gc) + gpio / 8;
}
static void etraxfs_gpio_irq_ack(struct irq_data *d)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
@@ -236,7 +229,7 @@ static void etraxfs_gpio_irq_ack(struct irq_data *d)
static void etraxfs_gpio_irq_mask(struct irq_data *d)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
@@ -249,7 +242,7 @@ static void etraxfs_gpio_irq_mask(struct irq_data *d)
static void etraxfs_gpio_irq_unmask(struct irq_data *d)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
@@ -262,7 +255,7 @@ static void etraxfs_gpio_irq_unmask(struct irq_data *d)
static int etraxfs_gpio_irq_set_type(struct irq_data *d, u32 type)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
u32 cfg;
@@ -299,7 +292,7 @@ static int etraxfs_gpio_irq_set_type(struct irq_data *d, u32 type)
static int etraxfs_gpio_irq_request_resources(struct irq_data *d)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
int ret = -EBUSY;
@@ -308,7 +301,7 @@ static int etraxfs_gpio_irq_request_resources(struct irq_data *d)
if (block->group[grpirq])
goto out;
- ret = gpiochip_lock_as_irq(&chip->bgc.gc, d->hwirq);
+ ret = gpiochip_lock_as_irq(&chip->gc, d->hwirq);
if (ret)
goto out;
@@ -330,13 +323,13 @@ out:
static void etraxfs_gpio_irq_release_resources(struct irq_data *d)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
spin_lock(&block->lock);
block->group[grpirq] = 0;
- gpiochip_unlock_as_irq(&chip->bgc.gc, d->hwirq);
+ gpiochip_unlock_as_irq(&chip->gc, d->hwirq);
spin_unlock(&block->lock);
}
@@ -419,7 +412,7 @@ static int etraxfs_gpio_probe(struct platform_device *pdev)
for (i = 0; i < info->num_ports; i++) {
struct etraxfs_gpio_chip *chip = &chips[i];
- struct bgpio_chip *bgc = &chip->bgc;
+ struct gpio_chip *gc = &chip->gc;
const struct etraxfs_gpio_port *port = &info->ports[i];
unsigned long flags = BGPIOF_READ_OUTPUT_REG_SET;
void __iomem *dat = regs + port->din;
@@ -433,7 +426,7 @@ static int etraxfs_gpio_probe(struct platform_device *pdev)
flags = BGPIOF_NO_OUTPUT;
}
- ret = bgpio_init(bgc, dev, 4,
+ ret = bgpio_init(gc, dev, 4,
dat, set, NULL, dirout, NULL,
flags);
if (ret) {
@@ -442,28 +435,28 @@ static int etraxfs_gpio_probe(struct platform_device *pdev)
continue;
}
- bgc->gc.ngpio = port->ngpio;
- bgc->gc.label = port->label;
+ gc->ngpio = port->ngpio;
+ gc->label = port->label;
- bgc->gc.of_node = dev->of_node;
- bgc->gc.of_gpio_n_cells = 3;
- bgc->gc.of_xlate = etraxfs_gpio_of_xlate;
+ gc->of_node = dev->of_node;
+ gc->of_gpio_n_cells = 3;
+ gc->of_xlate = etraxfs_gpio_of_xlate;
- ret = gpiochip_add(&bgc->gc);
+ ret = gpiochip_add_data(gc, chip);
if (ret) {
dev_err(dev, "Unable to register port %s\n",
- bgc->gc.label);
+ gc->label);
continue;
}
if (i > 0 && !allportsirq)
continue;
- ret = gpiochip_irqchip_add(&bgc->gc, &etraxfs_gpio_irq_chip, 0,
+ ret = gpiochip_irqchip_add(gc, &etraxfs_gpio_irq_chip, 0,
handle_level_irq, IRQ_TYPE_NONE);
if (ret) {
dev_err(dev, "Unable to add irqchip to port %s\n",
- bgc->gc.label);
+ gc->label);
}
}
diff --git a/drivers/gpio/gpio-ge.c b/drivers/gpio/gpio-ge.c
index f9ac3f351753..cbbec838a9d1 100644
--- a/drivers/gpio/gpio-ge.c
+++ b/drivers/gpio/gpio-ge.c
@@ -24,7 +24,7 @@
#include <linux/of_gpio.h>
#include <linux/of_address.h>
#include <linux/module.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#define GEF_GPIO_DIRECT 0x00
#define GEF_GPIO_IN 0x04
@@ -55,19 +55,19 @@ static int __init gef_gpio_probe(struct platform_device *pdev)
{
const struct of_device_id *of_id =
of_match_device(gef_gpio_ids, &pdev->dev);
- struct bgpio_chip *bgc;
+ struct gpio_chip *gc;
void __iomem *regs;
int ret;
- bgc = devm_kzalloc(&pdev->dev, sizeof(*bgc), GFP_KERNEL);
- if (!bgc)
+ gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
+ if (!gc)
return -ENOMEM;
regs = of_iomap(pdev->dev.of_node, 0);
if (!regs)
return -ENOMEM;
- ret = bgpio_init(bgc, &pdev->dev, 4, regs + GEF_GPIO_IN,
+ ret = bgpio_init(gc, &pdev->dev, 4, regs + GEF_GPIO_IN,
regs + GEF_GPIO_OUT, NULL, NULL,
regs + GEF_GPIO_DIRECT, BGPIOF_BIG_ENDIAN_BYTE_ORDER);
if (ret) {
@@ -76,20 +76,20 @@ static int __init gef_gpio_probe(struct platform_device *pdev)
}
/* Setup pointers to chip functions */
- bgc->gc.label = devm_kstrdup(&pdev->dev, pdev->dev.of_node->full_name,
+ gc->label = devm_kstrdup(&pdev->dev, pdev->dev.of_node->full_name,
GFP_KERNEL);
- if (!bgc->gc.label) {
+ if (!gc->label) {
ret = -ENOMEM;
goto err0;
}
- bgc->gc.base = -1;
- bgc->gc.ngpio = (u16)(uintptr_t)of_id->data;
- bgc->gc.of_gpio_n_cells = 2;
- bgc->gc.of_node = pdev->dev.of_node;
+ gc->base = -1;
+ gc->ngpio = (u16)(uintptr_t)of_id->data;
+ gc->of_gpio_n_cells = 2;
+ gc->of_node = pdev->dev.of_node;
/* This function adds a memory mapped GPIO chip */
- ret = gpiochip_add(&bgc->gc);
+ ret = gpiochip_add_data(gc, NULL);
if (ret)
goto err0;
diff --git a/drivers/gpio/gpio-generic.c b/drivers/gpio/gpio-generic.c
index 72088028d7a9..5eb7aaf43dc5 100644
--- a/drivers/gpio/gpio-generic.c
+++ b/drivers/gpio/gpio-generic.c
@@ -56,11 +56,10 @@ o ` ~~~~\___/~~~~ ` controller in FPGA is ,.`
#include <linux/log2.h>
#include <linux/ioport.h>
#include <linux/io.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/mod_devicetable.h>
-#include <linux/basic_mmio_gpio.h>
static void bgpio_write8(void __iomem *reg, unsigned long data)
{
@@ -124,33 +123,30 @@ static unsigned long bgpio_read32be(void __iomem *reg)
return ioread32be(reg);
}
-static unsigned long bgpio_pin2mask(struct bgpio_chip *bgc, unsigned int pin)
+static unsigned long bgpio_pin2mask(struct gpio_chip *gc, unsigned int pin)
{
return 1 << pin;
}
-static unsigned long bgpio_pin2mask_be(struct bgpio_chip *bgc,
+static unsigned long bgpio_pin2mask_be(struct gpio_chip *gc,
unsigned int pin)
{
- return 1 << (bgc->bits - 1 - pin);
+ return 1 << (gc->bgpio_bits - 1 - pin);
}
static int bgpio_get_set(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- unsigned long pinmask = bgc->pin2mask(bgc, gpio);
+ unsigned long pinmask = gc->pin2mask(gc, gpio);
- if (bgc->dir & pinmask)
- return bgc->read_reg(bgc->reg_set) & pinmask;
+ if (gc->bgpio_dir & pinmask)
+ return gc->read_reg(gc->reg_set) & pinmask;
else
- return bgc->read_reg(bgc->reg_dat) & pinmask;
+ return gc->read_reg(gc->reg_dat) & pinmask;
}
static int bgpio_get(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return !!(bgc->read_reg(bgc->reg_dat) & bgc->pin2mask(bgc, gpio));
+ return !!(gc->read_reg(gc->reg_dat) & gc->pin2mask(gc, gpio));
}
static void bgpio_set_none(struct gpio_chip *gc, unsigned int gpio, int val)
@@ -159,53 +155,50 @@ static void bgpio_set_none(struct gpio_chip *gc, unsigned int gpio, int val)
static void bgpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- unsigned long mask = bgc->pin2mask(bgc, gpio);
+ unsigned long mask = gc->pin2mask(gc, gpio);
unsigned long flags;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
if (val)
- bgc->data |= mask;
+ gc->bgpio_data |= mask;
else
- bgc->data &= ~mask;
+ gc->bgpio_data &= ~mask;
- bgc->write_reg(bgc->reg_dat, bgc->data);
+ gc->write_reg(gc->reg_dat, gc->bgpio_data);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
static void bgpio_set_with_clear(struct gpio_chip *gc, unsigned int gpio,
int val)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- unsigned long mask = bgc->pin2mask(bgc, gpio);
+ unsigned long mask = gc->pin2mask(gc, gpio);
if (val)
- bgc->write_reg(bgc->reg_set, mask);
+ gc->write_reg(gc->reg_set, mask);
else
- bgc->write_reg(bgc->reg_clr, mask);
+ gc->write_reg(gc->reg_clr, mask);
}
static void bgpio_set_set(struct gpio_chip *gc, unsigned int gpio, int val)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- unsigned long mask = bgc->pin2mask(bgc, gpio);
+ unsigned long mask = gc->pin2mask(gc, gpio);
unsigned long flags;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
if (val)
- bgc->data |= mask;
+ gc->bgpio_data |= mask;
else
- bgc->data &= ~mask;
+ gc->bgpio_data &= ~mask;
- bgc->write_reg(bgc->reg_set, bgc->data);
+ gc->write_reg(gc->reg_set, gc->bgpio_data);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
-static void bgpio_multiple_get_masks(struct bgpio_chip *bgc,
+static void bgpio_multiple_get_masks(struct gpio_chip *gc,
unsigned long *mask, unsigned long *bits,
unsigned long *set_mask,
unsigned long *clear_mask)
@@ -215,19 +208,19 @@ static void bgpio_multiple_get_masks(struct bgpio_chip *bgc,
*set_mask = 0;
*clear_mask = 0;
- for (i = 0; i < bgc->bits; i++) {
+ for (i = 0; i < gc->bgpio_bits; i++) {
if (*mask == 0)
break;
if (__test_and_clear_bit(i, mask)) {
if (test_bit(i, bits))
- *set_mask |= bgc->pin2mask(bgc, i);
+ *set_mask |= gc->pin2mask(gc, i);
else
- *clear_mask |= bgc->pin2mask(bgc, i);
+ *clear_mask |= gc->pin2mask(gc, i);
}
}
}
-static void bgpio_set_multiple_single_reg(struct bgpio_chip *bgc,
+static void bgpio_set_multiple_single_reg(struct gpio_chip *gc,
unsigned long *mask,
unsigned long *bits,
void __iomem *reg)
@@ -235,47 +228,42 @@ static void bgpio_set_multiple_single_reg(struct bgpio_chip *bgc,
unsigned long flags;
unsigned long set_mask, clear_mask;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
- bgpio_multiple_get_masks(bgc, mask, bits, &set_mask, &clear_mask);
+ bgpio_multiple_get_masks(gc, mask, bits, &set_mask, &clear_mask);
- bgc->data |= set_mask;
- bgc->data &= ~clear_mask;
+ gc->bgpio_data |= set_mask;
+ gc->bgpio_data &= ~clear_mask;
- bgc->write_reg(reg, bgc->data);
+ gc->write_reg(reg, gc->bgpio_data);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
static void bgpio_set_multiple(struct gpio_chip *gc, unsigned long *mask,
unsigned long *bits)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- bgpio_set_multiple_single_reg(bgc, mask, bits, bgc->reg_dat);
+ bgpio_set_multiple_single_reg(gc, mask, bits, gc->reg_dat);
}
static void bgpio_set_multiple_set(struct gpio_chip *gc, unsigned long *mask,
unsigned long *bits)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- bgpio_set_multiple_single_reg(bgc, mask, bits, bgc->reg_set);
+ bgpio_set_multiple_single_reg(gc, mask, bits, gc->reg_set);
}
static void bgpio_set_multiple_with_clear(struct gpio_chip *gc,
unsigned long *mask,
unsigned long *bits)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
unsigned long set_mask, clear_mask;
- bgpio_multiple_get_masks(bgc, mask, bits, &set_mask, &clear_mask);
+ bgpio_multiple_get_masks(gc, mask, bits, &set_mask, &clear_mask);
if (set_mask)
- bgc->write_reg(bgc->reg_set, set_mask);
+ gc->write_reg(gc->reg_set, set_mask);
if (clear_mask)
- bgc->write_reg(bgc->reg_clr, clear_mask);
+ gc->write_reg(gc->reg_clr, clear_mask);
}
static int bgpio_simple_dir_in(struct gpio_chip *gc, unsigned int gpio)
@@ -299,111 +287,103 @@ static int bgpio_simple_dir_out(struct gpio_chip *gc, unsigned int gpio,
static int bgpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
unsigned long flags;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
- bgc->dir &= ~bgc->pin2mask(bgc, gpio);
- bgc->write_reg(bgc->reg_dir, bgc->dir);
+ gc->bgpio_dir &= ~gc->pin2mask(gc, gpio);
+ gc->write_reg(gc->reg_dir, gc->bgpio_dir);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
static int bgpio_get_dir(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return (bgc->read_reg(bgc->reg_dir) & bgc->pin2mask(bgc, gpio)) ?
- GPIOF_DIR_OUT : GPIOF_DIR_IN;
+ /* Return 0 if output, 1 of input */
+ return !(gc->read_reg(gc->reg_dir) & gc->pin2mask(gc, gpio));
}
static int bgpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
unsigned long flags;
gc->set(gc, gpio, val);
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
- bgc->dir |= bgc->pin2mask(bgc, gpio);
- bgc->write_reg(bgc->reg_dir, bgc->dir);
+ gc->bgpio_dir |= gc->pin2mask(gc, gpio);
+ gc->write_reg(gc->reg_dir, gc->bgpio_dir);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
static int bgpio_dir_in_inv(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
unsigned long flags;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
- bgc->dir |= bgc->pin2mask(bgc, gpio);
- bgc->write_reg(bgc->reg_dir, bgc->dir);
+ gc->bgpio_dir |= gc->pin2mask(gc, gpio);
+ gc->write_reg(gc->reg_dir, gc->bgpio_dir);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
static int bgpio_dir_out_inv(struct gpio_chip *gc, unsigned int gpio, int val)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
unsigned long flags;
gc->set(gc, gpio, val);
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
- bgc->dir &= ~bgc->pin2mask(bgc, gpio);
- bgc->write_reg(bgc->reg_dir, bgc->dir);
+ gc->bgpio_dir &= ~gc->pin2mask(gc, gpio);
+ gc->write_reg(gc->reg_dir, gc->bgpio_dir);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
static int bgpio_get_dir_inv(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return (bgc->read_reg(bgc->reg_dir) & bgc->pin2mask(bgc, gpio)) ?
- GPIOF_DIR_IN : GPIOF_DIR_OUT;
+ /* Return 0 if output, 1 if input */
+ return !!(gc->read_reg(gc->reg_dir) & gc->pin2mask(gc, gpio));
}
static int bgpio_setup_accessors(struct device *dev,
- struct bgpio_chip *bgc,
+ struct gpio_chip *gc,
bool bit_be,
bool byte_be)
{
- switch (bgc->bits) {
+ switch (gc->bgpio_bits) {
case 8:
- bgc->read_reg = bgpio_read8;
- bgc->write_reg = bgpio_write8;
+ gc->read_reg = bgpio_read8;
+ gc->write_reg = bgpio_write8;
break;
case 16:
if (byte_be) {
- bgc->read_reg = bgpio_read16be;
- bgc->write_reg = bgpio_write16be;
+ gc->read_reg = bgpio_read16be;
+ gc->write_reg = bgpio_write16be;
} else {
- bgc->read_reg = bgpio_read16;
- bgc->write_reg = bgpio_write16;
+ gc->read_reg = bgpio_read16;
+ gc->write_reg = bgpio_write16;
}
break;
case 32:
if (byte_be) {
- bgc->read_reg = bgpio_read32be;
- bgc->write_reg = bgpio_write32be;
+ gc->read_reg = bgpio_read32be;
+ gc->write_reg = bgpio_write32be;
} else {
- bgc->read_reg = bgpio_read32;
- bgc->write_reg = bgpio_write32;
+ gc->read_reg = bgpio_read32;
+ gc->write_reg = bgpio_write32;
}
break;
#if BITS_PER_LONG >= 64
@@ -413,17 +393,17 @@ static int bgpio_setup_accessors(struct device *dev,
"64 bit big endian byte order unsupported\n");
return -EINVAL;
} else {
- bgc->read_reg = bgpio_read64;
- bgc->write_reg = bgpio_write64;
+ gc->read_reg = bgpio_read64;
+ gc->write_reg = bgpio_write64;
}
break;
#endif /* BITS_PER_LONG >= 64 */
default:
- dev_err(dev, "unsupported data width %u bits\n", bgc->bits);
+ dev_err(dev, "unsupported data width %u bits\n", gc->bgpio_bits);
return -EINVAL;
}
- bgc->pin2mask = bit_be ? bgpio_pin2mask_be : bgpio_pin2mask;
+ gc->pin2mask = bit_be ? bgpio_pin2mask_be : bgpio_pin2mask;
return 0;
}
@@ -450,44 +430,44 @@ static int bgpio_setup_accessors(struct device *dev,
* - an input direction register (named "dirin") where a 1 bit indicates
* the GPIO is an input.
*/
-static int bgpio_setup_io(struct bgpio_chip *bgc,
+static int bgpio_setup_io(struct gpio_chip *gc,
void __iomem *dat,
void __iomem *set,
void __iomem *clr,
unsigned long flags)
{
- bgc->reg_dat = dat;
- if (!bgc->reg_dat)
+ gc->reg_dat = dat;
+ if (!gc->reg_dat)
return -EINVAL;
if (set && clr) {
- bgc->reg_set = set;
- bgc->reg_clr = clr;
- bgc->gc.set = bgpio_set_with_clear;
- bgc->gc.set_multiple = bgpio_set_multiple_with_clear;
+ gc->reg_set = set;
+ gc->reg_clr = clr;
+ gc->set = bgpio_set_with_clear;
+ gc->set_multiple = bgpio_set_multiple_with_clear;
} else if (set && !clr) {
- bgc->reg_set = set;
- bgc->gc.set = bgpio_set_set;
- bgc->gc.set_multiple = bgpio_set_multiple_set;
+ gc->reg_set = set;
+ gc->set = bgpio_set_set;
+ gc->set_multiple = bgpio_set_multiple_set;
} else if (flags & BGPIOF_NO_OUTPUT) {
- bgc->gc.set = bgpio_set_none;
- bgc->gc.set_multiple = NULL;
+ gc->set = bgpio_set_none;
+ gc->set_multiple = NULL;
} else {
- bgc->gc.set = bgpio_set;
- bgc->gc.set_multiple = bgpio_set_multiple;
+ gc->set = bgpio_set;
+ gc->set_multiple = bgpio_set_multiple;
}
if (!(flags & BGPIOF_UNREADABLE_REG_SET) &&
(flags & BGPIOF_READ_OUTPUT_REG_SET))
- bgc->gc.get = bgpio_get_set;
+ gc->get = bgpio_get_set;
else
- bgc->gc.get = bgpio_get;
+ gc->get = bgpio_get;
return 0;
}
-static int bgpio_setup_direction(struct bgpio_chip *bgc,
+static int bgpio_setup_direction(struct gpio_chip *gc,
void __iomem *dirout,
void __iomem *dirin,
unsigned long flags)
@@ -495,21 +475,21 @@ static int bgpio_setup_direction(struct bgpio_chip *bgc,
if (dirout && dirin) {
return -EINVAL;
} else if (dirout) {
- bgc->reg_dir = dirout;
- bgc->gc.direction_output = bgpio_dir_out;
- bgc->gc.direction_input = bgpio_dir_in;
- bgc->gc.get_direction = bgpio_get_dir;
+ gc->reg_dir = dirout;
+ gc->direction_output = bgpio_dir_out;
+ gc->direction_input = bgpio_dir_in;
+ gc->get_direction = bgpio_get_dir;
} else if (dirin) {
- bgc->reg_dir = dirin;
- bgc->gc.direction_output = bgpio_dir_out_inv;
- bgc->gc.direction_input = bgpio_dir_in_inv;
- bgc->gc.get_direction = bgpio_get_dir_inv;
+ gc->reg_dir = dirin;
+ gc->direction_output = bgpio_dir_out_inv;
+ gc->direction_input = bgpio_dir_in_inv;
+ gc->get_direction = bgpio_get_dir_inv;
} else {
if (flags & BGPIOF_NO_OUTPUT)
- bgc->gc.direction_output = bgpio_dir_out_err;
+ gc->direction_output = bgpio_dir_out_err;
else
- bgc->gc.direction_output = bgpio_simple_dir_out;
- bgc->gc.direction_input = bgpio_simple_dir_in;
+ gc->direction_output = bgpio_simple_dir_out;
+ gc->direction_input = bgpio_simple_dir_in;
}
return 0;
@@ -523,14 +503,7 @@ static int bgpio_request(struct gpio_chip *chip, unsigned gpio_pin)
return -EINVAL;
}
-int bgpio_remove(struct bgpio_chip *bgc)
-{
- gpiochip_remove(&bgc->gc);
- return 0;
-}
-EXPORT_SYMBOL_GPL(bgpio_remove);
-
-int bgpio_init(struct bgpio_chip *bgc, struct device *dev,
+int bgpio_init(struct gpio_chip *gc, struct device *dev,
unsigned long sz, void __iomem *dat, void __iomem *set,
void __iomem *clr, void __iomem *dirout, void __iomem *dirin,
unsigned long flags)
@@ -540,36 +513,36 @@ int bgpio_init(struct bgpio_chip *bgc, struct device *dev,
if (!is_power_of_2(sz))
return -EINVAL;
- bgc->bits = sz * 8;
- if (bgc->bits > BITS_PER_LONG)
+ gc->bgpio_bits = sz * 8;
+ if (gc->bgpio_bits > BITS_PER_LONG)
return -EINVAL;
- spin_lock_init(&bgc->lock);
- bgc->gc.parent = dev;
- bgc->gc.label = dev_name(dev);
- bgc->gc.base = -1;
- bgc->gc.ngpio = bgc->bits;
- bgc->gc.request = bgpio_request;
+ spin_lock_init(&gc->bgpio_lock);
+ gc->parent = dev;
+ gc->label = dev_name(dev);
+ gc->base = -1;
+ gc->ngpio = gc->bgpio_bits;
+ gc->request = bgpio_request;
- ret = bgpio_setup_io(bgc, dat, set, clr, flags);
+ ret = bgpio_setup_io(gc, dat, set, clr, flags);
if (ret)
return ret;
- ret = bgpio_setup_accessors(dev, bgc, flags & BGPIOF_BIG_ENDIAN,
+ ret = bgpio_setup_accessors(dev, gc, flags & BGPIOF_BIG_ENDIAN,
flags & BGPIOF_BIG_ENDIAN_BYTE_ORDER);
if (ret)
return ret;
- ret = bgpio_setup_direction(bgc, dirout, dirin, flags);
+ ret = bgpio_setup_direction(gc, dirout, dirin, flags);
if (ret)
return ret;
- bgc->data = bgc->read_reg(bgc->reg_dat);
- if (bgc->gc.set == bgpio_set_set &&
+ gc->bgpio_data = gc->read_reg(gc->reg_dat);
+ if (gc->set == bgpio_set_set &&
!(flags & BGPIOF_UNREADABLE_REG_SET))
- bgc->data = bgc->read_reg(bgc->reg_set);
- if (bgc->reg_dir && !(flags & BGPIOF_UNREADABLE_REG_DIR))
- bgc->dir = bgc->read_reg(bgc->reg_dir);
+ gc->bgpio_data = gc->read_reg(gc->reg_set);
+ if (gc->reg_dir && !(flags & BGPIOF_UNREADABLE_REG_DIR))
+ gc->bgpio_dir = gc->read_reg(gc->reg_dir);
return ret;
}
@@ -607,7 +580,7 @@ static int bgpio_pdev_probe(struct platform_device *pdev)
unsigned long sz;
unsigned long flags = pdev->id_entry->driver_data;
int err;
- struct bgpio_chip *bgc;
+ struct gpio_chip *gc;
struct bgpio_pdata *pdata = dev_get_platdata(dev);
r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dat");
@@ -636,32 +609,33 @@ static int bgpio_pdev_probe(struct platform_device *pdev)
if (IS_ERR(dirin))
return PTR_ERR(dirin);
- bgc = devm_kzalloc(&pdev->dev, sizeof(*bgc), GFP_KERNEL);
- if (!bgc)
+ gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
+ if (!gc)
return -ENOMEM;
- err = bgpio_init(bgc, dev, sz, dat, set, clr, dirout, dirin, flags);
+ err = bgpio_init(gc, dev, sz, dat, set, clr, dirout, dirin, flags);
if (err)
return err;
if (pdata) {
if (pdata->label)
- bgc->gc.label = pdata->label;
- bgc->gc.base = pdata->base;
+ gc->label = pdata->label;
+ gc->base = pdata->base;
if (pdata->ngpio > 0)
- bgc->gc.ngpio = pdata->ngpio;
+ gc->ngpio = pdata->ngpio;
}
- platform_set_drvdata(pdev, bgc);
+ platform_set_drvdata(pdev, gc);
- return gpiochip_add(&bgc->gc);
+ return gpiochip_add_data(gc, NULL);
}
static int bgpio_pdev_remove(struct platform_device *pdev)
{
- struct bgpio_chip *bgc = platform_get_drvdata(pdev);
+ struct gpio_chip *gc = platform_get_drvdata(pdev);
- return bgpio_remove(bgc);
+ gpiochip_remove(gc);
+ return 0;
}
static const struct platform_device_id bgpio_id_table[] = {
diff --git a/drivers/gpio/gpio-grgpio.c b/drivers/gpio/gpio-grgpio.c
index 801423fe8143..7847dd34f86f 100644
--- a/drivers/gpio/gpio-grgpio.c
+++ b/drivers/gpio/gpio-grgpio.c
@@ -31,7 +31,7 @@
#include <linux/gpio.h>
#include <linux/slab.h>
#include <linux/err.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
@@ -63,7 +63,7 @@ struct grgpio_lirq {
};
struct grgpio_priv {
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
void __iomem *regs;
struct device *dev;
@@ -92,29 +92,22 @@ struct grgpio_priv {
struct grgpio_lirq lirqs[GRGPIO_MAX_NGPIO];
};
-static inline struct grgpio_priv *grgpio_gc_to_priv(struct gpio_chip *gc)
-{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return container_of(bgc, struct grgpio_priv, bgc);
-}
-
static void grgpio_set_imask(struct grgpio_priv *priv, unsigned int offset,
int val)
{
- struct bgpio_chip *bgc = &priv->bgc;
- unsigned long mask = bgc->pin2mask(bgc, offset);
+ struct gpio_chip *gc = &priv->gc;
+ unsigned long mask = gc->pin2mask(gc, offset);
if (val)
priv->imask |= mask;
else
priv->imask &= ~mask;
- bgc->write_reg(priv->regs + GRGPIO_IMASK, priv->imask);
+ gc->write_reg(priv->regs + GRGPIO_IMASK, priv->imask);
}
static int grgpio_to_irq(struct gpio_chip *gc, unsigned offset)
{
- struct grgpio_priv *priv = grgpio_gc_to_priv(gc);
+ struct grgpio_priv *priv = gpiochip_get_data(gc);
if (offset >= gc->ngpio)
return -ENXIO;
@@ -158,15 +151,15 @@ static int grgpio_irq_set_type(struct irq_data *d, unsigned int type)
return -EINVAL;
}
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
- ipol = priv->bgc.read_reg(priv->regs + GRGPIO_IPOL) & ~mask;
- iedge = priv->bgc.read_reg(priv->regs + GRGPIO_IEDGE) & ~mask;
+ ipol = priv->gc.read_reg(priv->regs + GRGPIO_IPOL) & ~mask;
+ iedge = priv->gc.read_reg(priv->regs + GRGPIO_IEDGE) & ~mask;
- priv->bgc.write_reg(priv->regs + GRGPIO_IPOL, ipol | pol);
- priv->bgc.write_reg(priv->regs + GRGPIO_IEDGE, iedge | edge);
+ priv->gc.write_reg(priv->regs + GRGPIO_IPOL, ipol | pol);
+ priv->gc.write_reg(priv->regs + GRGPIO_IEDGE, iedge | edge);
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
return 0;
}
@@ -177,11 +170,11 @@ static void grgpio_irq_mask(struct irq_data *d)
int offset = d->hwirq;
unsigned long flags;
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
grgpio_set_imask(priv, offset, 0);
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
}
static void grgpio_irq_unmask(struct irq_data *d)
@@ -190,11 +183,11 @@ static void grgpio_irq_unmask(struct irq_data *d)
int offset = d->hwirq;
unsigned long flags;
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
grgpio_set_imask(priv, offset, 1);
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
}
static struct irq_chip grgpio_irq_chip = {
@@ -207,12 +200,12 @@ static struct irq_chip grgpio_irq_chip = {
static irqreturn_t grgpio_irq_handler(int irq, void *dev)
{
struct grgpio_priv *priv = dev;
- int ngpio = priv->bgc.gc.ngpio;
+ int ngpio = priv->gc.ngpio;
unsigned long flags;
int i;
int match = 0;
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
/*
* For each gpio line, call its interrupt handler if it its underlying
@@ -228,7 +221,7 @@ static irqreturn_t grgpio_irq_handler(int irq, void *dev)
}
}
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
if (!match)
dev_warn(priv->dev, "No gpio line matched irq %d\n", irq);
@@ -260,7 +253,7 @@ static int grgpio_irq_map(struct irq_domain *d, unsigned int irq,
dev_dbg(priv->dev, "Mapping irq %d for gpio line %d\n",
irq, offset);
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
/* Request underlying irq if not already requested */
lirq->irq = irq;
@@ -273,14 +266,14 @@ static int grgpio_irq_map(struct irq_domain *d, unsigned int irq,
"Could not request underlying irq %d\n",
uirq->uirq);
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
return ret;
}
}
uirq->refcnt++;
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
/* Setup irq */
irq_set_chip_data(irq, priv);
@@ -298,13 +291,13 @@ static void grgpio_irq_unmap(struct irq_domain *d, unsigned int irq)
struct grgpio_lirq *lirq;
struct grgpio_uirq *uirq;
unsigned long flags;
- int ngpio = priv->bgc.gc.ngpio;
+ int ngpio = priv->gc.ngpio;
int i;
irq_set_chip_and_handler(irq, NULL, NULL);
irq_set_chip_data(irq, NULL);
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
/* Free underlying irq if last user unmapped */
index = -1;
@@ -326,7 +319,7 @@ static void grgpio_irq_unmap(struct irq_domain *d, unsigned int irq)
free_irq(uirq->uirq, priv);
}
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
}
static const struct irq_domain_ops grgpio_irq_domain_ops = {
@@ -341,7 +334,6 @@ static int grgpio_probe(struct platform_device *ofdev)
struct device_node *np = ofdev->dev.of_node;
void __iomem *regs;
struct gpio_chip *gc;
- struct bgpio_chip *bgc;
struct grgpio_priv *priv;
struct resource *res;
int err;
@@ -359,8 +351,8 @@ static int grgpio_probe(struct platform_device *ofdev)
if (IS_ERR(regs))
return PTR_ERR(regs);
- bgc = &priv->bgc;
- err = bgpio_init(bgc, &ofdev->dev, 4, regs + GRGPIO_DATA,
+ gc = &priv->gc;
+ err = bgpio_init(gc, &ofdev->dev, 4, regs + GRGPIO_DATA,
regs + GRGPIO_OUTPUT, NULL, regs + GRGPIO_DIR, NULL,
BGPIOF_BIG_ENDIAN_BYTE_ORDER);
if (err) {
@@ -369,10 +361,9 @@ static int grgpio_probe(struct platform_device *ofdev)
}
priv->regs = regs;
- priv->imask = bgc->read_reg(regs + GRGPIO_IMASK);
+ priv->imask = gc->read_reg(regs + GRGPIO_IMASK);
priv->dev = &ofdev->dev;
- gc = &bgc->gc;
gc->of_node = np;
gc->owner = THIS_MODULE;
gc->to_irq = grgpio_to_irq;
@@ -435,7 +426,7 @@ static int grgpio_probe(struct platform_device *ofdev)
platform_set_drvdata(ofdev, priv);
- err = gpiochip_add(gc);
+ err = gpiochip_add_data(gc, priv);
if (err) {
dev_err(&ofdev->dev, "Could not add gpiochip\n");
if (priv->domain)
@@ -456,7 +447,7 @@ static int grgpio_remove(struct platform_device *ofdev)
int i;
int ret = 0;
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
if (priv->domain) {
for (i = 0; i < GRGPIO_MAX_NGPIO; i++) {
@@ -467,13 +458,13 @@ static int grgpio_remove(struct platform_device *ofdev)
}
}
- gpiochip_remove(&priv->bgc.gc);
+ gpiochip_remove(&priv->gc);
if (priv->domain)
irq_domain_remove(priv->domain);
out:
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
return ret;
}
diff --git a/drivers/gpio/gpio-moxart.c b/drivers/gpio/gpio-moxart.c
index 8942f4909a31..71c13c4e12b5 100644
--- a/drivers/gpio/gpio-moxart.c
+++ b/drivers/gpio/gpio-moxart.c
@@ -14,7 +14,6 @@
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/io.h>
-#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/of_address.h>
@@ -23,7 +22,7 @@
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/bitops.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#define GPIO_DATA_OUT 0x00
#define GPIO_DATA_IN 0x04
@@ -33,12 +32,12 @@ static int moxart_gpio_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct resource *res;
- struct bgpio_chip *bgc;
+ struct gpio_chip *gc;
void __iomem *base;
int ret;
- bgc = devm_kzalloc(dev, sizeof(*bgc), GFP_KERNEL);
- if (!bgc)
+ gc = devm_kzalloc(dev, sizeof(*gc), GFP_KERNEL);
+ if (!gc)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -46,7 +45,7 @@ static int moxart_gpio_probe(struct platform_device *pdev)
if (IS_ERR(base))
return PTR_ERR(base);
- ret = bgpio_init(bgc, dev, 4, base + GPIO_DATA_IN,
+ ret = bgpio_init(gc, dev, 4, base + GPIO_DATA_IN,
base + GPIO_DATA_OUT, NULL,
base + GPIO_PIN_DIRECTION, NULL,
BGPIOF_READ_OUTPUT_REG_SET);
@@ -55,16 +54,16 @@ static int moxart_gpio_probe(struct platform_device *pdev)
return ret;
}
- bgc->gc.label = "moxart-gpio";
- bgc->gc.request = gpiochip_generic_request;
- bgc->gc.free = gpiochip_generic_free;
- bgc->data = bgc->read_reg(bgc->reg_set);
- bgc->gc.base = 0;
- bgc->gc.ngpio = 32;
- bgc->gc.parent = dev;
- bgc->gc.owner = THIS_MODULE;
+ gc->label = "moxart-gpio";
+ gc->request = gpiochip_generic_request;
+ gc->free = gpiochip_generic_free;
+ gc->bgpio_data = bgc->read_reg(bgc->reg_set);
+ gc->base = 0;
+ gc->ngpio = 32;
+ gc->parent = dev;
+ gc->owner = THIS_MODULE;
- ret = gpiochip_add(&bgc->gc);
+ ret = gpiochip_add_data(gc, NULL);
if (ret) {
dev_err(dev, "%s: gpiochip_add failed\n",
dev->of_node->full_name);
diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index 6ea8df6c7397..7fd21cb53c81 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -26,10 +26,11 @@
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
-#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
+/* FIXME: for gpio_get_value() replace this with direct register read */
+#include <linux/gpio.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/module.h>
@@ -64,7 +65,7 @@ struct mxc_gpio_port {
int irq;
int irq_high;
struct irq_domain *domain;
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
u32 both_edges;
};
@@ -172,7 +173,7 @@ static int gpio_set_irq_type(struct irq_data *d, u32 type)
struct mxc_gpio_port *port = gc->private;
u32 bit, val;
u32 gpio_idx = d->hwirq;
- u32 gpio = port->bgc.gc.base + gpio_idx;
+ u32 gpio = port->gc.base + gpio_idx;
int edge;
void __iomem *reg = port->base;
@@ -398,9 +399,7 @@ static void mxc_gpio_get_hw(struct platform_device *pdev)
static int mxc_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- struct mxc_gpio_port *port =
- container_of(bgc, struct mxc_gpio_port, bgc);
+ struct mxc_gpio_port *port = gpiochip_get_data(gc);
return irq_find_mapping(port->domain, offset);
}
@@ -451,7 +450,7 @@ static int mxc_gpio_probe(struct platform_device *pdev)
port);
}
- err = bgpio_init(&port->bgc, &pdev->dev, 4,
+ err = bgpio_init(&port->gc, &pdev->dev, 4,
port->base + GPIO_PSR,
port->base + GPIO_DR, NULL,
port->base + GPIO_GDIR, NULL,
@@ -459,13 +458,13 @@ static int mxc_gpio_probe(struct platform_device *pdev)
if (err)
goto out_bgio;
- port->bgc.gc.to_irq = mxc_gpio_to_irq;
- port->bgc.gc.base = (pdev->id < 0) ? of_alias_get_id(np, "gpio") * 32 :
+ port->gc.to_irq = mxc_gpio_to_irq;
+ port->gc.base = (pdev->id < 0) ? of_alias_get_id(np, "gpio") * 32 :
pdev->id * 32;
- err = gpiochip_add(&port->bgc.gc);
+ err = gpiochip_add_data(&port->gc, port);
if (err)
- goto out_bgpio_remove;
+ goto out_bgio;
irq_base = irq_alloc_descs(-1, 0, 32, numa_node_id());
if (irq_base < 0) {
@@ -494,9 +493,7 @@ out_irqdomain_remove:
out_irqdesc_free:
irq_free_descs(irq_base, 32);
out_gpiochip_remove:
- gpiochip_remove(&port->bgc.gc);
-out_bgpio_remove:
- bgpio_remove(&port->bgc);
+ gpiochip_remove(&port->gc);
out_bgio:
dev_info(&pdev->dev, "%s failed with errno %d\n", __func__, err);
return err;
diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
index a4288f428819..b9daa0bf32a4 100644
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -26,13 +26,14 @@
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
-#include <linux/gpio.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
+/* FIXME: for gpio_get_value(), replace this by direct register read */
+#include <linux/gpio.h>
#include <linux/module.h>
#define MXS_SET 0x4
@@ -64,7 +65,7 @@ struct mxs_gpio_port {
int id;
int irq;
struct irq_domain *domain;
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
enum mxs_gpio_id devid;
u32 both_edges;
};
@@ -93,7 +94,7 @@ static int mxs_gpio_set_irq_type(struct irq_data *d, unsigned int type)
port->both_edges &= ~pin_mask;
switch (type) {
case IRQ_TYPE_EDGE_BOTH:
- val = gpio_get_value(port->bgc.gc.base + d->hwirq);
+ val = gpio_get_value(port->gc.base + d->hwirq);
if (val)
edge = GPIO_INT_FALL_EDGE;
else
@@ -225,18 +226,14 @@ static int __init mxs_gpio_init_gc(struct mxs_gpio_port *port, int irq_base)
static int mxs_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- struct mxs_gpio_port *port =
- container_of(bgc, struct mxs_gpio_port, bgc);
+ struct mxs_gpio_port *port = gpiochip_get_data(gc);
return irq_find_mapping(port->domain, offset);
}
static int mxs_gpio_get_direction(struct gpio_chip *gc, unsigned offset)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- struct mxs_gpio_port *port =
- container_of(bgc, struct mxs_gpio_port, bgc);
+ struct mxs_gpio_port *port = gpiochip_get_data(gc);
u32 mask = 1 << offset;
u32 dir;
@@ -330,26 +327,24 @@ static int mxs_gpio_probe(struct platform_device *pdev)
irq_set_chained_handler_and_data(port->irq, mxs_gpio_irq_handler,
port);
- err = bgpio_init(&port->bgc, &pdev->dev, 4,
+ err = bgpio_init(&port->gc, &pdev->dev, 4,
port->base + PINCTRL_DIN(port),
port->base + PINCTRL_DOUT(port) + MXS_SET,
port->base + PINCTRL_DOUT(port) + MXS_CLR,
port->base + PINCTRL_DOE(port), NULL, 0);
if (err)
- goto out_irqdesc_free;
+ goto out_irqdomain_remove;
- port->bgc.gc.to_irq = mxs_gpio_to_irq;
- port->bgc.gc.get_direction = mxs_gpio_get_direction;
- port->bgc.gc.base = port->id * 32;
+ port->gc.to_irq = mxs_gpio_to_irq;
+ port->gc.get_direction = mxs_gpio_get_direction;
+ port->gc.base = port->id * 32;
- err = gpiochip_add(&port->bgc.gc);
+ err = gpiochip_add_data(&port->gc, port);
if (err)
- goto out_bgpio_remove;
+ goto out_irqdomain_remove;
return 0;
-out_bgpio_remove:
- bgpio_remove(&port->bgc);
out_irqdomain_remove:
irq_domain_remove(port->domain);
out_irqdesc_free:
diff --git a/drivers/gpio/gpio-sodaville.c b/drivers/gpio/gpio-sodaville.c
index 34b02b42ab9e..e3cb6772f6ec 100644
--- a/drivers/gpio/gpio-sodaville.c
+++ b/drivers/gpio/gpio-sodaville.c
@@ -10,7 +10,6 @@
*/
#include <linux/errno.h>
-#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/irq.h>
@@ -20,7 +19,7 @@
#include <linux/pci.h>
#include <linux/platform_device.h>
#include <linux/of_irq.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#define DRV_NAME "sdv_gpio"
#define SDV_NUM_PUB_GPIOS 12
@@ -43,7 +42,7 @@ struct sdv_gpio_chip_data {
void __iomem *gpio_pub_base;
struct irq_domain *id;
struct irq_chip_generic *gc;
- struct bgpio_chip bgpio;
+ struct gpio_chip chip;
};
static int sdv_gpio_pub_set_type(struct irq_data *d, unsigned int type)
@@ -226,14 +225,14 @@ static int sdv_gpio_probe(struct pci_dev *pdev,
writel(mux_val, sd->gpio_pub_base + GPMUXCTL);
}
- ret = bgpio_init(&sd->bgpio, &pdev->dev, 4,
+ ret = bgpio_init(&sd->chip, &pdev->dev, 4,
sd->gpio_pub_base + GPINR, sd->gpio_pub_base + GPOUTR,
NULL, sd->gpio_pub_base + GPOER, NULL, 0);
if (ret)
goto unmap;
- sd->bgpio.gc.ngpio = SDV_NUM_PUB_GPIOS;
+ sd->chip.ngpio = SDV_NUM_PUB_GPIOS;
- ret = gpiochip_add(&sd->bgpio.gc);
+ ret = gpiochip_add_data(&sd->chip, sd);
if (ret < 0) {
dev_err(&pdev->dev, "gpiochip_add() failed.\n");
goto unmap;
@@ -265,7 +264,7 @@ static void sdv_gpio_remove(struct pci_dev *pdev)
free_irq(pdev->irq, sd);
irq_free_descs(sd->irq_base, SDV_NUM_PUB_GPIOS);
- gpiochip_remove(&sd->bgpio.gc);
+ gpiochip_remove(&sd->chip);
pci_release_region(pdev, GPIO_BAR);
iounmap(sd->gpio_pub_base);
pci_disable_device(pdev);
diff --git a/drivers/gpio/gpio-xgene-sb.c b/drivers/gpio/gpio-xgene-sb.c
index d57068b9083e..282004deb5d4 100644
--- a/drivers/gpio/gpio-xgene-sb.c
+++ b/drivers/gpio/gpio-xgene-sb.c
@@ -23,10 +23,8 @@
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/of_gpio.h>
-#include <linux/gpio.h>
#include <linux/gpio/driver.h>
#include <linux/acpi.h>
-#include <linux/basic_mmio_gpio.h>
#include "gpiolib.h"
@@ -43,38 +41,31 @@
/**
* struct xgene_gpio_sb - GPIO-Standby private data structure.
- * @bgc: memory-mapped GPIO controllers.
+ * @gc: memory-mapped GPIO controllers.
* @irq: Mapping GPIO pins and interrupt number
* nirq: Number of GPIO pins that supports interrupt
*/
struct xgene_gpio_sb {
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
u32 *irq;
u32 nirq;
};
-static inline struct xgene_gpio_sb *to_xgene_gpio_sb(struct gpio_chip *gc)
-{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return container_of(bgc, struct xgene_gpio_sb, bgc);
-}
-
-static void xgene_gpio_set_bit(struct bgpio_chip *bgc, void __iomem *reg, u32 gpio, int val)
+static void xgene_gpio_set_bit(struct gpio_chip *gc, void __iomem *reg, u32 gpio, int val)
{
u32 data;
- data = bgc->read_reg(reg);
+ data = gc->read_reg(reg);
if (val)
data |= GPIO_MASK(gpio);
else
data &= ~GPIO_MASK(gpio);
- bgc->write_reg(reg, data);
+ gc->write_reg(reg, data);
}
static int apm_gpio_sb_to_irq(struct gpio_chip *gc, u32 gpio)
{
- struct xgene_gpio_sb *priv = to_xgene_gpio_sb(gc);
+ struct xgene_gpio_sb *priv = gpiochip_get_data(gc);
if (priv->irq[gpio])
return priv->irq[gpio];
@@ -99,15 +90,15 @@ static int xgene_gpio_sb_probe(struct platform_device *pdev)
if (IS_ERR(regs))
return PTR_ERR(regs);
- ret = bgpio_init(&priv->bgc, &pdev->dev, 4,
+ ret = bgpio_init(&priv->gc, &pdev->dev, 4,
regs + MPA_GPIO_IN_ADDR,
regs + MPA_GPIO_OUT_ADDR, NULL,
regs + MPA_GPIO_OE_ADDR, NULL, 0);
if (ret)
return ret;
- priv->bgc.gc.to_irq = apm_gpio_sb_to_irq;
- priv->bgc.gc.ngpio = XGENE_MAX_GPIO_DS;
+ priv->gc.to_irq = apm_gpio_sb_to_irq;
+ priv->gc.ngpio = XGENE_MAX_GPIO_DS;
priv->nirq = XGENE_MAX_GPIO_DS_IRQ;
@@ -118,14 +109,14 @@ static int xgene_gpio_sb_probe(struct platform_device *pdev)
for (i = 0; i < priv->nirq; i++) {
priv->irq[default_lines[i]] = platform_get_irq(pdev, i);
- xgene_gpio_set_bit(&priv->bgc, regs + MPA_GPIO_SEL_LO,
+ xgene_gpio_set_bit(&priv->gc, regs + MPA_GPIO_SEL_LO,
default_lines[i] * 2, 1);
- xgene_gpio_set_bit(&priv->bgc, regs + MPA_GPIO_INT_LVL, i, 1);
+ xgene_gpio_set_bit(&priv->gc, regs + MPA_GPIO_INT_LVL, i, 1);
}
platform_set_drvdata(pdev, priv);
- ret = gpiochip_add(&priv->bgc.gc);
+ ret = gpiochip_add_data(&priv->gc, priv);
if (ret)
dev_err(&pdev->dev, "failed to register X-Gene GPIO Standby driver\n");
else
@@ -133,7 +124,7 @@ static int xgene_gpio_sb_probe(struct platform_device *pdev)
if (priv->nirq > 0) {
/* Register interrupt handlers for gpio signaled acpi events */
- acpi_gpiochip_request_interrupts(&priv->bgc.gc);
+ acpi_gpiochip_request_interrupts(&priv->gc);
}
return ret;
@@ -144,10 +135,11 @@ static int xgene_gpio_sb_remove(struct platform_device *pdev)
struct xgene_gpio_sb *priv = platform_get_drvdata(pdev);
if (priv->nirq > 0) {
- acpi_gpiochip_free_interrupts(&priv->bgc.gc);
+ acpi_gpiochip_free_interrupts(&priv->gc);
}
- return bgpio_remove(&priv->bgc);
+ gpiochip_remove(&priv->gc);
+ return 0;
}
static const struct of_device_id xgene_gpio_sb_of_match[] = {
diff --git a/drivers/mfd/vexpress-sysreg.c b/drivers/mfd/vexpress-sysreg.c
index 3e628df9280c..855c0204f09a 100644
--- a/drivers/mfd/vexpress-sysreg.c
+++ b/drivers/mfd/vexpress-sysreg.c
@@ -11,7 +11,7 @@
* Copyright (C) 2012 ARM Limited
*/
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/mfd/core.h>
@@ -164,7 +164,7 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
{
struct resource *mem;
void __iomem *base;
- struct bgpio_chip *mmc_gpio_chip;
+ struct gpio_chip *mmc_gpio_chip;
int master;
u32 dt_hbi;
@@ -201,8 +201,8 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
return -ENOMEM;
bgpio_init(mmc_gpio_chip, &pdev->dev, 0x4, base + SYS_MCI,
NULL, NULL, NULL, NULL, 0);
- mmc_gpio_chip->gc.ngpio = 2;
- gpiochip_add(&mmc_gpio_chip->gc);
+ mmc_gpio_chip->ngpio = 2;
+ gpiochip_add(mmc_gpio_chip);
return mfd_add_devices(&pdev->dev, PLATFORM_DEVID_AUTO,
vexpress_sysreg_cells,
diff --git a/include/linux/basic_mmio_gpio.h b/include/linux/basic_mmio_gpio.h
deleted file mode 100644
index ed3768f4ecc7..000000000000
--- a/include/linux/basic_mmio_gpio.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Basic memory-mapped GPIO controllers.
- *
- * Copyright 2008 MontaVista Software, Inc.
- * Copyright 2008,2010 Anton Vorontsov <cbouatmailru@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#ifndef __BASIC_MMIO_GPIO_H
-#define __BASIC_MMIO_GPIO_H
-
-#include <linux/gpio.h>
-#include <linux/types.h>
-#include <linux/compiler.h>
-#include <linux/spinlock_types.h>
-
-struct bgpio_pdata {
- const char *label;
- int base;
- int ngpio;
-};
-
-struct device;
-
-struct bgpio_chip {
- struct gpio_chip gc;
-
- unsigned long (*read_reg)(void __iomem *reg);
- void (*write_reg)(void __iomem *reg, unsigned long data);
-
- void __iomem *reg_dat;
- void __iomem *reg_set;
- void __iomem *reg_clr;
- void __iomem *reg_dir;
-
- /* Number of bits (GPIOs): <register width> * 8. */
- int bits;
-
- /*
- * Some GPIO controllers work with the big-endian bits notation,
- * e.g. in a 8-bits register, GPIO7 is the least significant bit.
- */
- unsigned long (*pin2mask)(struct bgpio_chip *bgc, unsigned int pin);
-
- /*
- * Used to lock bgpio_chip->data. Also, this is needed to keep
- * shadowed and real data registers writes together.
- */
- spinlock_t lock;
-
- /* Shadowed data register to clear/set bits safely. */
- unsigned long data;
-
- /* Shadowed direction registers to clear/set direction safely. */
- unsigned long dir;
-};
-
-static inline struct bgpio_chip *to_bgpio_chip(struct gpio_chip *gc)
-{
- return container_of(gc, struct bgpio_chip, gc);
-}
-
-int bgpio_remove(struct bgpio_chip *bgc);
-int bgpio_init(struct bgpio_chip *bgc, struct device *dev,
- unsigned long sz, void __iomem *dat, void __iomem *set,
- void __iomem *clr, void __iomem *dirout, void __iomem *dirin,
- unsigned long flags);
-
-#define BGPIOF_BIG_ENDIAN BIT(0)
-#define BGPIOF_UNREADABLE_REG_SET BIT(1) /* reg_set is unreadable */
-#define BGPIOF_UNREADABLE_REG_DIR BIT(2) /* reg_dir is unreadable */
-#define BGPIOF_BIG_ENDIAN_BYTE_ORDER BIT(3)
-#define BGPIOF_READ_OUTPUT_REG_SET BIT(4) /* reg_set stores output value */
-#define BGPIOF_NO_OUTPUT BIT(5) /* only input */
-
-#endif /* __BASIC_MMIO_GPIO_H */
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index f066742061f2..3334ba66f6a8 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -8,6 +8,7 @@
#include <linux/irqdomain.h>
#include <linux/lockdep.h>
#include <linux/pinctrl/pinctrl.h>
+#include <linux/kconfig.h>
struct device;
struct gpio_desc;
@@ -66,6 +67,23 @@ struct seq_file;
* registers.
* @irq_not_threaded: flag must be set if @can_sleep is set but the
* IRQs don't need to be threaded
+ * @read_reg: reader function for generic GPIO
+ * @write_reg: writer function for generic GPIO
+ * @pin2mask: some generic GPIO controllers work with the big-endian bits
+ * notation, e.g. in a 8-bits register, GPIO7 is the least significant
+ * bit. This callback assigns the right bit mask.
+ * @reg_dat: data (in) register for generic GPIO
+ * @reg_set: output set register (out=high) for generic GPIO
+ * @reg_clk: output clear register (out=low) for generic GPIO
+ * @reg_dir: direction setting register for generic GPIO
+ * @bgpio_bits: number of register bits used for a generic GPIO i.e.
+ * <register width> * 8
+ * @bgpio_lock: used to lock chip->bgpio_data. Also, this is needed to keep
+ * shadowed and real data registers writes together.
+ * @bgpio_data: shadowed data register for generic GPIO to clear/set bits
+ * safely.
+ * @bgpio_dir: shadowed direction register for generic GPIO to clear/set
+ * direction safely.
* @irqchip: GPIO IRQ chip impl, provided by GPIO driver
* @irqdomain: Interrupt translation domain; responsible for mapping
* between GPIO hwirq number and linux irq number
@@ -129,6 +147,20 @@ struct gpio_chip {
bool can_sleep;
bool irq_not_threaded;
+#if IS_ENABLED(CONFIG_GPIO_GENERIC)
+ unsigned long (*read_reg)(void __iomem *reg);
+ void (*write_reg)(void __iomem *reg, unsigned long data);
+ unsigned long (*pin2mask)(struct gpio_chip *gc, unsigned int pin);
+ void __iomem *reg_dat;
+ void __iomem *reg_set;
+ void __iomem *reg_clr;
+ void __iomem *reg_dir;
+ int bgpio_bits;
+ spinlock_t bgpio_lock;
+ unsigned long bgpio_data;
+ unsigned long bgpio_dir;
+#endif
+
#ifdef CONFIG_GPIOLIB_IRQCHIP
/*
* With CONFIG_GPIOLIB_IRQCHIP we get an irqchip inside the gpiolib
@@ -189,6 +221,28 @@ static inline void *gpiochip_get_data(struct gpio_chip *chip)
struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc);
+#if IS_ENABLED(CONFIG_GPIO_GENERIC)
+
+struct bgpio_pdata {
+ const char *label;
+ int base;
+ int ngpio;
+};
+
+int bgpio_init(struct gpio_chip *gc, struct device *dev,
+ unsigned long sz, void __iomem *dat, void __iomem *set,
+ void __iomem *clr, void __iomem *dirout, void __iomem *dirin,
+ unsigned long flags);
+
+#define BGPIOF_BIG_ENDIAN BIT(0)
+#define BGPIOF_UNREADABLE_REG_SET BIT(1) /* reg_set is unreadable */
+#define BGPIOF_UNREADABLE_REG_DIR BIT(2) /* reg_dir is unreadable */
+#define BGPIOF_BIG_ENDIAN_BYTE_ORDER BIT(3)
+#define BGPIOF_READ_OUTPUT_REG_SET BIT(4) /* reg_set stores output value */
+#define BGPIOF_NO_OUTPUT BIT(5) /* only input */
+
+#endif
+
#ifdef CONFIG_GPIOLIB_IRQCHIP
void gpiochip_set_chained_irqchip(struct gpio_chip *gpiochip,
--
2.4.3
^ permalink raw reply related [flat|nested] 18+ messages in thread
* [PATCH 004/182] gpio: generic: factor into gpio_chip struct
@ 2015-12-09 13:12 ` Linus Walleij
0 siblings, 0 replies; 18+ messages in thread
From: Linus Walleij @ 2015-12-09 13:12 UTC (permalink / raw)
To: linux-arm-kernel
The separate struct bgpio_chip has been a pain to handle, both
by being confusingly similar in name to struct gpio_chip and
for being contained inside a struct so that struct gpio_chip
is contained in a struct contained in a struct, making several
steps of dereferencing necessary.
Make things simpler: include the fields directly into
<linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
some of the member variables with bgpio_* and add proper
kerneldoc while we're at it.
Modify all users to handle the change and use a struct
gpio_chip directly. And while we're at it: replace all
container_of() dereferencing by gpiochip_get_data() and
registering the gpio_chip with gpiochip_add_data().
Cc: arm at kernel.org
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Alexander Shiyan <shc_work@mail.ru>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Gregory Fong <gregory.0xf0@gmail.com>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Olof Johansson <olof@lixom.net>
Cc: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Cc: Rabin Vincent <rabin@rab.in>
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-omap at vger.kernel.org
Cc: linux-samsung-soc at vger.kernel.org
Cc: bcm-kernel-feedback-list at broadcom.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
ARM SoC folks and Lee: it would be great if you could
ACK the few lines hitting arch/arm/* and drivers/mfd/* in this
so I can take it through the GPIO tree.
---
arch/arm/mach-clps711x/board-autcpu12.c | 2 +-
arch/arm/mach-clps711x/board-p720t.c | 2 +-
arch/arm/mach-imx/mach-mx21ads.c | 2 +-
arch/arm/mach-omap1/board-ams-delta.c | 2 +-
arch/arm/mach-s3c64xx/mach-crag6410.c | 2 +-
drivers/gpio/gpio-74xx-mmio.c | 37 ++--
drivers/gpio/gpio-brcmstb.c | 80 ++++-----
drivers/gpio/gpio-clps711x.c | 28 +--
drivers/gpio/gpio-dwapb.c | 92 +++++-----
drivers/gpio/gpio-ep93xx.c | 25 +--
drivers/gpio/gpio-etraxfs.c | 49 +++---
drivers/gpio/gpio-ge.c | 24 +--
drivers/gpio/gpio-generic.c | 292 +++++++++++++++-----------------
drivers/gpio/gpio-grgpio.c | 73 ++++----
drivers/gpio/gpio-moxart.c | 29 ++--
drivers/gpio/gpio-mxc.c | 27 ++-
drivers/gpio/gpio-mxs.c | 33 ++--
drivers/gpio/gpio-sodaville.c | 13 +-
drivers/gpio/gpio-xgene-sb.c | 40 ++---
drivers/mfd/vexpress-sysreg.c | 8 +-
include/linux/basic_mmio_gpio.h | 80 ---------
include/linux/gpio/driver.h | 54 ++++++
22 files changed, 442 insertions(+), 552 deletions(-)
delete mode 100644 include/linux/basic_mmio_gpio.h
diff --git a/arch/arm/mach-clps711x/board-autcpu12.c b/arch/arm/mach-clps711x/board-autcpu12.c
index c3d964221767..ba3d7d1b28f8 100644
--- a/arch/arm/mach-clps711x/board-autcpu12.c
+++ b/arch/arm/mach-clps711x/board-autcpu12.c
@@ -31,7 +31,7 @@
#include <linux/mtd/partitions.h>
#include <linux/mtd/nand-gpio.h>
#include <linux/platform_device.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <mach/hardware.h>
#include <asm/sizes.h>
diff --git a/arch/arm/mach-clps711x/board-p720t.c b/arch/arm/mach-clps711x/board-p720t.c
index e68dd629bda2..80a16a8b3776 100644
--- a/arch/arm/mach-clps711x/board-p720t.c
+++ b/arch/arm/mach-clps711x/board-p720t.c
@@ -28,7 +28,7 @@
#include <linux/leds.h>
#include <linux/sizes.h>
#include <linux/backlight.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/platform_device.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/nand-gpio.h>
diff --git a/arch/arm/mach-imx/mach-mx21ads.c b/arch/arm/mach-imx/mach-mx21ads.c
index 703ce31d7379..9986f9a697c8 100644
--- a/arch/arm/mach-imx/mach-mx21ads.c
+++ b/arch/arm/mach-imx/mach-mx21ads.c
@@ -17,7 +17,7 @@
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/physmap.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/gpio.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
diff --git a/arch/arm/mach-omap1/board-ams-delta.c b/arch/arm/mach-omap1/board-ams-delta.c
index a95499ea8706..97e66558c238 100644
--- a/arch/arm/mach-omap1/board-ams-delta.c
+++ b/arch/arm/mach-omap1/board-ams-delta.c
@@ -11,7 +11,7 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/init.h>
diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c
index f776adcdaee8..723f47fefc81 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -29,7 +29,7 @@
#include <linux/pwm_backlight.h>
#include <linux/dm9000.h>
#include <linux/gpio_keys.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/spi/spi.h>
#include <linux/platform_data/pca953x.h>
diff --git a/drivers/gpio/gpio-74xx-mmio.c b/drivers/gpio/gpio-74xx-mmio.c
index 6ed7c0fb3378..464cb57b07c7 100644
--- a/drivers/gpio/gpio-74xx-mmio.c
+++ b/drivers/gpio/gpio-74xx-mmio.c
@@ -10,10 +10,9 @@
*/
#include <linux/err.h>
-#include <linux/gpio.h>
#include <linux/module.h>
#include <linux/of_device.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/platform_device.h>
#define MMIO_74XX_DIR_IN (0 << 8)
@@ -21,7 +20,7 @@
#define MMIO_74XX_BIT_CNT(x) ((x) & 0xff)
struct mmio_74xx_gpio_priv {
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
unsigned flags;
};
@@ -78,30 +77,23 @@ static const struct of_device_id mmio_74xx_gpio_ids[] = {
};
MODULE_DEVICE_TABLE(of, mmio_74xx_gpio_ids);
-static inline struct mmio_74xx_gpio_priv *to_74xx_gpio(struct gpio_chip *gc)
-{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return container_of(bgc, struct mmio_74xx_gpio_priv, bgc);
-}
-
static int mmio_74xx_get_direction(struct gpio_chip *gc, unsigned offset)
{
- struct mmio_74xx_gpio_priv *priv = to_74xx_gpio(gc);
+ struct mmio_74xx_gpio_priv *priv = gpiochip_get_data(gc);
- return (priv->flags & MMIO_74XX_DIR_OUT) ? GPIOF_DIR_OUT : GPIOF_DIR_IN;
+ return !(priv->flags & MMIO_74XX_DIR_OUT);
}
static int mmio_74xx_dir_in(struct gpio_chip *gc, unsigned int gpio)
{
- struct mmio_74xx_gpio_priv *priv = to_74xx_gpio(gc);
+ struct mmio_74xx_gpio_priv *priv = gpiochip_get_data(gc);
return (priv->flags & MMIO_74XX_DIR_OUT) ? -ENOTSUPP : 0;
}
static int mmio_74xx_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
{
- struct mmio_74xx_gpio_priv *priv = to_74xx_gpio(gc);
+ struct mmio_74xx_gpio_priv *priv = gpiochip_get_data(gc);
if (priv->flags & MMIO_74XX_DIR_OUT) {
gc->set(gc, gpio, val);
@@ -131,28 +123,29 @@ static int mmio_74xx_gpio_probe(struct platform_device *pdev)
priv->flags = (uintptr_t) of_id->data;
- err = bgpio_init(&priv->bgc, &pdev->dev,
+ err = bgpio_init(&priv->gc, &pdev->dev,
DIV_ROUND_UP(MMIO_74XX_BIT_CNT(priv->flags), 8),
dat, NULL, NULL, NULL, NULL, 0);
if (err)
return err;
- priv->bgc.gc.direction_input = mmio_74xx_dir_in;
- priv->bgc.gc.direction_output = mmio_74xx_dir_out;
- priv->bgc.gc.get_direction = mmio_74xx_get_direction;
- priv->bgc.gc.ngpio = MMIO_74XX_BIT_CNT(priv->flags);
- priv->bgc.gc.owner = THIS_MODULE;
+ priv->gc.direction_input = mmio_74xx_dir_in;
+ priv->gc.direction_output = mmio_74xx_dir_out;
+ priv->gc.get_direction = mmio_74xx_get_direction;
+ priv->gc.ngpio = MMIO_74XX_BIT_CNT(priv->flags);
+ priv->gc.owner = THIS_MODULE;
platform_set_drvdata(pdev, priv);
- return gpiochip_add(&priv->bgc.gc);
+ return gpiochip_add_data(&priv->gc, priv);
}
static int mmio_74xx_gpio_remove(struct platform_device *pdev)
{
struct mmio_74xx_gpio_priv *priv = platform_get_drvdata(pdev);
- return bgpio_remove(&priv->bgc);
+ gpiochip_remove(&priv->gc);
+ return 0;
}
static struct platform_driver mmio_74xx_gpio_driver = {
diff --git a/drivers/gpio/gpio-brcmstb.c b/drivers/gpio/gpio-brcmstb.c
index 4c64627c6bb5..dc3f0395693b 100644
--- a/drivers/gpio/gpio-brcmstb.c
+++ b/drivers/gpio/gpio-brcmstb.c
@@ -16,7 +16,6 @@
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/module.h>
-#include <linux/basic_mmio_gpio.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/interrupt.h>
@@ -35,7 +34,7 @@
struct brcmstb_gpio_bank {
struct list_head node;
int id;
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
struct brcmstb_gpio_priv *parent_priv;
u32 width;
struct irq_chip irq_chip;
@@ -57,37 +56,30 @@ struct brcmstb_gpio_priv {
/* assumes MAX_GPIO_PER_BANK is a multiple of 2 */
#define GPIO_BIT(gpio) ((gpio) & (MAX_GPIO_PER_BANK - 1))
-static inline struct brcmstb_gpio_bank *
-brcmstb_gpio_gc_to_bank(struct gpio_chip *gc)
-{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- return container_of(bgc, struct brcmstb_gpio_bank, bgc);
-}
-
static inline struct brcmstb_gpio_priv *
brcmstb_gpio_gc_to_priv(struct gpio_chip *gc)
{
- struct brcmstb_gpio_bank *bank = brcmstb_gpio_gc_to_bank(gc);
+ struct brcmstb_gpio_bank *bank = gpiochip_get_data(gc);
return bank->parent_priv;
}
static void brcmstb_gpio_set_imask(struct brcmstb_gpio_bank *bank,
unsigned int offset, bool enable)
{
- struct bgpio_chip *bgc = &bank->bgc;
+ struct gpio_chip *gc = &bank->gc;
struct brcmstb_gpio_priv *priv = bank->parent_priv;
- u32 mask = bgc->pin2mask(bgc, offset);
+ u32 mask = gc->pin2mask(gc, offset);
u32 imask;
unsigned long flags;
- spin_lock_irqsave(&bgc->lock, flags);
- imask = bgc->read_reg(priv->reg_base + GIO_MASK(bank->id));
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
+ imask = gc->read_reg(priv->reg_base + GIO_MASK(bank->id));
if (enable)
imask |= mask;
else
imask &= ~mask;
- bgc->write_reg(priv->reg_base + GIO_MASK(bank->id), imask);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ gc->write_reg(priv->reg_base + GIO_MASK(bank->id), imask);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
/* -------------------- IRQ chip functions -------------------- */
@@ -95,7 +87,7 @@ static void brcmstb_gpio_set_imask(struct brcmstb_gpio_bank *bank,
static void brcmstb_gpio_irq_mask(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
- struct brcmstb_gpio_bank *bank = brcmstb_gpio_gc_to_bank(gc);
+ struct brcmstb_gpio_bank *bank = gpiochip_get_data(gc);
brcmstb_gpio_set_imask(bank, d->hwirq, false);
}
@@ -103,7 +95,7 @@ static void brcmstb_gpio_irq_mask(struct irq_data *d)
static void brcmstb_gpio_irq_unmask(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
- struct brcmstb_gpio_bank *bank = brcmstb_gpio_gc_to_bank(gc);
+ struct brcmstb_gpio_bank *bank = gpiochip_get_data(gc);
brcmstb_gpio_set_imask(bank, d->hwirq, true);
}
@@ -111,7 +103,7 @@ static void brcmstb_gpio_irq_unmask(struct irq_data *d)
static int brcmstb_gpio_irq_set_type(struct irq_data *d, unsigned int type)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
- struct brcmstb_gpio_bank *bank = brcmstb_gpio_gc_to_bank(gc);
+ struct brcmstb_gpio_bank *bank = gpiochip_get_data(gc);
struct brcmstb_gpio_priv *priv = bank->parent_priv;
u32 mask = BIT(d->hwirq);
u32 edge_insensitive, iedge_insensitive;
@@ -149,23 +141,23 @@ static int brcmstb_gpio_irq_set_type(struct irq_data *d, unsigned int type)
return -EINVAL;
}
- spin_lock_irqsave(&bank->bgc.lock, flags);
+ spin_lock_irqsave(&bank->gc.bgpio_lock, flags);
- iedge_config = bank->bgc.read_reg(priv->reg_base +
+ iedge_config = bank->gc.read_reg(priv->reg_base +
GIO_EC(bank->id)) & ~mask;
- iedge_insensitive = bank->bgc.read_reg(priv->reg_base +
+ iedge_insensitive = bank->gc.read_reg(priv->reg_base +
GIO_EI(bank->id)) & ~mask;
- ilevel = bank->bgc.read_reg(priv->reg_base +
+ ilevel = bank->gc.read_reg(priv->reg_base +
GIO_LEVEL(bank->id)) & ~mask;
- bank->bgc.write_reg(priv->reg_base + GIO_EC(bank->id),
+ bank->gc.write_reg(priv->reg_base + GIO_EC(bank->id),
iedge_config | edge_config);
- bank->bgc.write_reg(priv->reg_base + GIO_EI(bank->id),
+ bank->gc.write_reg(priv->reg_base + GIO_EI(bank->id),
iedge_insensitive | edge_insensitive);
- bank->bgc.write_reg(priv->reg_base + GIO_LEVEL(bank->id),
+ bank->gc.write_reg(priv->reg_base + GIO_LEVEL(bank->id),
ilevel | level);
- spin_unlock_irqrestore(&bank->bgc.lock, flags);
+ spin_unlock_irqrestore(&bank->gc.bgpio_lock, flags);
return 0;
}
@@ -210,29 +202,29 @@ static irqreturn_t brcmstb_gpio_wake_irq_handler(int irq, void *data)
static void brcmstb_gpio_irq_bank_handler(struct brcmstb_gpio_bank *bank)
{
struct brcmstb_gpio_priv *priv = bank->parent_priv;
- struct irq_domain *irq_domain = bank->bgc.gc.irqdomain;
+ struct irq_domain *irq_domain = bank->gc.irqdomain;
void __iomem *reg_base = priv->reg_base;
unsigned long status;
unsigned long flags;
- spin_lock_irqsave(&bank->bgc.lock, flags);
- while ((status = bank->bgc.read_reg(reg_base + GIO_STAT(bank->id)) &
- bank->bgc.read_reg(reg_base + GIO_MASK(bank->id)))) {
+ spin_lock_irqsave(&bank->gc.bgpio_lock, flags);
+ while ((status = bank->gc.read_reg(reg_base + GIO_STAT(bank->id)) &
+ bank->gc.read_reg(reg_base + GIO_MASK(bank->id)))) {
int bit;
for_each_set_bit(bit, &status, 32) {
- u32 stat = bank->bgc.read_reg(reg_base +
+ u32 stat = bank->gc.read_reg(reg_base +
GIO_STAT(bank->id));
if (bit >= bank->width)
dev_warn(&priv->pdev->dev,
"IRQ for invalid GPIO (bank=%d, offset=%d)\n",
bank->id, bit);
- bank->bgc.write_reg(reg_base + GIO_STAT(bank->id),
+ bank->gc.write_reg(reg_base + GIO_STAT(bank->id),
stat | BIT(bit));
generic_handle_irq(irq_find_mapping(irq_domain, bit));
}
}
- spin_unlock_irqrestore(&bank->bgc.lock, flags);
+ spin_unlock_irqrestore(&bank->gc.bgpio_lock, flags);
}
/* Each UPG GIO block has one IRQ for all banks */
@@ -303,9 +295,7 @@ static int brcmstb_gpio_remove(struct platform_device *pdev)
*/
list_for_each(pos, &priv->bank_list) {
bank = list_entry(pos, struct brcmstb_gpio_bank, node);
- ret = bgpio_remove(&bank->bgc);
- if (ret)
- dev_err(&pdev->dev, "gpiochip_remove fail in cleanup\n");
+ gpiochip_remove(&bank->gc);
}
if (priv->reboot_notifier.notifier_call) {
ret = unregister_reboot_notifier(&priv->reboot_notifier);
@@ -320,7 +310,7 @@ static int brcmstb_gpio_of_xlate(struct gpio_chip *gc,
const struct of_phandle_args *gpiospec, u32 *flags)
{
struct brcmstb_gpio_priv *priv = brcmstb_gpio_gc_to_priv(gc);
- struct brcmstb_gpio_bank *bank = brcmstb_gpio_gc_to_bank(gc);
+ struct brcmstb_gpio_bank *bank = gpiochip_get_data(gc);
int offset;
if (gc->of_gpio_n_cells != 2) {
@@ -398,9 +388,9 @@ static int brcmstb_gpio_irq_setup(struct platform_device *pdev,
if (priv->can_wake)
bank->irq_chip.irq_set_wake = brcmstb_gpio_irq_set_wake;
- gpiochip_irqchip_add(&bank->bgc.gc, &bank->irq_chip, 0,
+ gpiochip_irqchip_add(&bank->gc, &bank->irq_chip, 0,
handle_simple_irq, IRQ_TYPE_NONE);
- gpiochip_set_chained_irqchip(&bank->bgc.gc, &bank->irq_chip,
+ gpiochip_set_chained_irqchip(&bank->gc, &bank->irq_chip,
priv->parent_irq, brcmstb_gpio_irq_handler);
return 0;
@@ -451,7 +441,6 @@ static int brcmstb_gpio_probe(struct platform_device *pdev)
of_property_for_each_u32(np, "brcm,gpio-bank-widths", prop, p,
bank_width) {
struct brcmstb_gpio_bank *bank;
- struct bgpio_chip *bgc;
struct gpio_chip *gc;
bank = devm_kzalloc(dev, sizeof(*bank), GFP_KERNEL);
@@ -473,8 +462,8 @@ static int brcmstb_gpio_probe(struct platform_device *pdev)
* Regs are 4 bytes wide, have data reg, no set/clear regs,
* and direction bits have 0 = output and 1 = input
*/
- bgc = &bank->bgc;
- err = bgpio_init(bgc, dev, 4,
+ gc = &bank->gc;
+ err = bgpio_init(gc, dev, 4,
reg_base + GIO_DATA(bank->id),
NULL, NULL, NULL,
reg_base + GIO_IODIR(bank->id), 0);
@@ -483,7 +472,6 @@ static int brcmstb_gpio_probe(struct platform_device *pdev)
goto fail;
}
- gc = &bgc->gc;
gc->of_node = np;
gc->owner = THIS_MODULE;
gc->label = np->full_name;
@@ -497,9 +485,9 @@ static int brcmstb_gpio_probe(struct platform_device *pdev)
* Mask all interrupts by default, since wakeup interrupts may
* be retained from S5 cold boot
*/
- bank->bgc.write_reg(reg_base + GIO_MASK(bank->id), 0);
+ gc->write_reg(reg_base + GIO_MASK(bank->id), 0);
- err = gpiochip_add(gc);
+ err = gpiochip_add_data(gc, bank);
if (err) {
dev_err(dev, "Could not add gpiochip for bank %d\n",
bank->id);
diff --git a/drivers/gpio/gpio-clps711x.c b/drivers/gpio/gpio-clps711x.c
index b6908f1ff1ab..c84f9551f108 100644
--- a/drivers/gpio/gpio-clps711x.c
+++ b/drivers/gpio/gpio-clps711x.c
@@ -10,24 +10,23 @@
*/
#include <linux/err.h>
-#include <linux/gpio.h>
#include <linux/module.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/platform_device.h>
static int clps711x_gpio_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
void __iomem *dat, *dir;
- struct bgpio_chip *bgc;
+ struct gpio_chip *gc;
struct resource *res;
int err, id = np ? of_alias_get_id(np, "gpio") : pdev->id;
if ((id < 0) || (id > 4))
return -ENODEV;
- bgc = devm_kzalloc(&pdev->dev, sizeof(*bgc), GFP_KERNEL);
- if (!bgc)
+ gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
+ if (!gc)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -43,11 +42,11 @@ static int clps711x_gpio_probe(struct platform_device *pdev)
switch (id) {
case 3:
/* PORTD is inverted logic for direction register */
- err = bgpio_init(bgc, &pdev->dev, 1, dat, NULL, NULL,
+ err = bgpio_init(gc, &pdev->dev, 1, dat, NULL, NULL,
NULL, dir, 0);
break;
default:
- err = bgpio_init(bgc, &pdev->dev, 1, dat, NULL, NULL,
+ err = bgpio_init(gc, &pdev->dev, 1, dat, NULL, NULL,
dir, NULL, 0);
break;
}
@@ -58,24 +57,25 @@ static int clps711x_gpio_probe(struct platform_device *pdev)
switch (id) {
case 4:
/* PORTE is 3 lines only */
- bgc->gc.ngpio = 3;
+ gc->ngpio = 3;
break;
default:
break;
}
- bgc->gc.base = id * 8;
- bgc->gc.owner = THIS_MODULE;
- platform_set_drvdata(pdev, bgc);
+ gc->base = id * 8;
+ gc->owner = THIS_MODULE;
+ platform_set_drvdata(pdev, gc);
- return gpiochip_add(&bgc->gc);
+ return gpiochip_add_data(gc, NULL);
}
static int clps711x_gpio_remove(struct platform_device *pdev)
{
- struct bgpio_chip *bgc = platform_get_drvdata(pdev);
+ struct gpio_chip *gc = platform_get_drvdata(pdev);
- return bgpio_remove(bgc);
+ gpiochip_remove(gc);
+ return 0;
}
static const struct of_device_id __maybe_unused clps711x_gpio_ids[] = {
diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index fcd5b0acfc72..597de1ef497b 100644
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -7,7 +7,9 @@
*
* All enquiries to support at picochip.com
*/
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
+/* FIXME: for gpio_get_value(), replace this with direct register read */
+#include <linux/gpio.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/interrupt.h>
@@ -66,7 +68,7 @@ struct dwapb_context {
#endif
struct dwapb_gpio_port {
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
bool is_registered;
struct dwapb_gpio *gpio;
#ifdef CONFIG_PM_SLEEP
@@ -83,33 +85,26 @@ struct dwapb_gpio {
struct irq_domain *domain;
};
-static inline struct dwapb_gpio_port *
-to_dwapb_gpio_port(struct bgpio_chip *bgc)
-{
- return container_of(bgc, struct dwapb_gpio_port, bgc);
-}
-
static inline u32 dwapb_read(struct dwapb_gpio *gpio, unsigned int offset)
{
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
void __iomem *reg_base = gpio->regs;
- return bgc->read_reg(reg_base + offset);
+ return gc->read_reg(reg_base + offset);
}
static inline void dwapb_write(struct dwapb_gpio *gpio, unsigned int offset,
u32 val)
{
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
void __iomem *reg_base = gpio->regs;
- bgc->write_reg(reg_base + offset, val);
+ gc->write_reg(reg_base + offset, val);
}
static int dwapb_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- struct dwapb_gpio_port *port = to_dwapb_gpio_port(bgc);
+ struct dwapb_gpio_port *port = gpiochip_get_data(gc);
struct dwapb_gpio *gpio = port->gpio;
return irq_find_mapping(gpio->domain, offset);
@@ -119,7 +114,7 @@ static void dwapb_toggle_trigger(struct dwapb_gpio *gpio, unsigned int offs)
{
u32 v = dwapb_read(gpio, GPIO_INT_POLARITY);
- if (gpio_get_value(gpio->ports[0].bgc.gc.base + offs))
+ if (gpio_get_value(gpio->ports[0].gc.base + offs))
v &= ~BIT(offs);
else
v |= BIT(offs);
@@ -162,39 +157,39 @@ static void dwapb_irq_enable(struct irq_data *d)
{
struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
struct dwapb_gpio *gpio = igc->private;
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
unsigned long flags;
u32 val;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
val = dwapb_read(gpio, GPIO_INTEN);
val |= BIT(d->hwirq);
dwapb_write(gpio, GPIO_INTEN, val);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
static void dwapb_irq_disable(struct irq_data *d)
{
struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
struct dwapb_gpio *gpio = igc->private;
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
unsigned long flags;
u32 val;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
val = dwapb_read(gpio, GPIO_INTEN);
val &= ~BIT(d->hwirq);
dwapb_write(gpio, GPIO_INTEN, val);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
static int dwapb_irq_reqres(struct irq_data *d)
{
struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
struct dwapb_gpio *gpio = igc->private;
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
- if (gpiochip_lock_as_irq(&bgc->gc, irqd_to_hwirq(d))) {
+ if (gpiochip_lock_as_irq(gc, irqd_to_hwirq(d))) {
dev_err(gpio->dev, "unable to lock HW IRQ %lu for IRQ\n",
irqd_to_hwirq(d));
return -EINVAL;
@@ -206,16 +201,16 @@ static void dwapb_irq_relres(struct irq_data *d)
{
struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
struct dwapb_gpio *gpio = igc->private;
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
- gpiochip_unlock_as_irq(&bgc->gc, irqd_to_hwirq(d));
+ gpiochip_unlock_as_irq(gc, irqd_to_hwirq(d));
}
static int dwapb_irq_set_type(struct irq_data *d, u32 type)
{
struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
struct dwapb_gpio *gpio = igc->private;
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
int bit = d->hwirq;
unsigned long level, polarity, flags;
@@ -223,7 +218,7 @@ static int dwapb_irq_set_type(struct irq_data *d, u32 type)
IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW))
return -EINVAL;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
level = dwapb_read(gpio, GPIO_INTTYPE_LEVEL);
polarity = dwapb_read(gpio, GPIO_INT_POLARITY);
@@ -254,7 +249,7 @@ static int dwapb_irq_set_type(struct irq_data *d, u32 type)
dwapb_write(gpio, GPIO_INTTYPE_LEVEL, level);
dwapb_write(gpio, GPIO_INT_POLARITY, polarity);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
@@ -262,13 +257,12 @@ static int dwapb_irq_set_type(struct irq_data *d, u32 type)
static int dwapb_gpio_set_debounce(struct gpio_chip *gc,
unsigned offset, unsigned debounce)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- struct dwapb_gpio_port *port = to_dwapb_gpio_port(bgc);
+ struct dwapb_gpio_port *port = gpiochip_get_data(gc);
struct dwapb_gpio *gpio = port->gpio;
unsigned long flags, val_deb;
- unsigned long mask = bgc->pin2mask(bgc, offset);
+ unsigned long mask = gc->pin2mask(gc, offset);
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
val_deb = dwapb_read(gpio, GPIO_PORTA_DEBOUNCE);
if (debounce)
@@ -276,7 +270,7 @@ static int dwapb_gpio_set_debounce(struct gpio_chip *gc,
else
dwapb_write(gpio, GPIO_PORTA_DEBOUNCE, val_deb & ~mask);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
@@ -295,7 +289,7 @@ static void dwapb_configure_irqs(struct dwapb_gpio *gpio,
struct dwapb_gpio_port *port,
struct dwapb_port_property *pp)
{
- struct gpio_chip *gc = &port->bgc.gc;
+ struct gpio_chip *gc = &port->gc;
struct device_node *node = pp->node;
struct irq_chip_generic *irq_gc = NULL;
unsigned int hwirq, ngpio = gc->ngpio;
@@ -369,13 +363,13 @@ static void dwapb_configure_irqs(struct dwapb_gpio *gpio,
for (hwirq = 0 ; hwirq < ngpio ; hwirq++)
irq_create_mapping(gpio->domain, hwirq);
- port->bgc.gc.to_irq = dwapb_gpio_to_irq;
+ port->gc.to_irq = dwapb_gpio_to_irq;
}
static void dwapb_irq_teardown(struct dwapb_gpio *gpio)
{
struct dwapb_gpio_port *port = &gpio->ports[0];
- struct gpio_chip *gc = &port->bgc.gc;
+ struct gpio_chip *gc = &port->gc;
unsigned int ngpio = gc->ngpio;
irq_hw_number_t hwirq;
@@ -412,7 +406,7 @@ static int dwapb_gpio_add_port(struct dwapb_gpio *gpio,
dirout = gpio->regs + GPIO_SWPORTA_DDR +
(pp->idx * GPIO_SWPORT_DDR_SIZE);
- err = bgpio_init(&port->bgc, gpio->dev, 4, dat, set, NULL, dirout,
+ err = bgpio_init(&port->gc, gpio->dev, 4, dat, set, NULL, dirout,
NULL, false);
if (err) {
dev_err(gpio->dev, "failed to init gpio chip for %s\n",
@@ -421,19 +415,19 @@ static int dwapb_gpio_add_port(struct dwapb_gpio *gpio,
}
#ifdef CONFIG_OF_GPIO
- port->bgc.gc.of_node = pp->node;
+ port->gc.of_node = pp->node;
#endif
- port->bgc.gc.ngpio = pp->ngpio;
- port->bgc.gc.base = pp->gpio_base;
+ port->gc.ngpio = pp->ngpio;
+ port->gc.base = pp->gpio_base;
/* Only port A support debounce */
if (pp->idx == 0)
- port->bgc.gc.set_debounce = dwapb_gpio_set_debounce;
+ port->gc.set_debounce = dwapb_gpio_set_debounce;
if (pp->irq)
dwapb_configure_irqs(gpio, port, pp);
- err = gpiochip_add(&port->bgc.gc);
+ err = gpiochip_add_data(&port->gc, port);
if (err)
dev_err(gpio->dev, "failed to register gpiochip for %s\n",
pp->name);
@@ -449,7 +443,7 @@ static void dwapb_gpio_unregister(struct dwapb_gpio *gpio)
for (m = 0; m < gpio->nr_ports; ++m)
if (gpio->ports[m].is_registered)
- gpiochip_remove(&gpio->ports[m].bgc.gc);
+ gpiochip_remove(&gpio->ports[m].gc);
}
static struct dwapb_platform_data *
@@ -591,11 +585,11 @@ static int dwapb_gpio_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct dwapb_gpio *gpio = platform_get_drvdata(pdev);
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
unsigned long flags;
int i;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
for (i = 0; i < gpio->nr_ports; i++) {
unsigned int offset;
unsigned int idx = gpio->ports[i].idx;
@@ -624,7 +618,7 @@ static int dwapb_gpio_suspend(struct device *dev)
dwapb_write(gpio, GPIO_INTMASK, 0xffffffff);
}
}
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
@@ -633,11 +627,11 @@ static int dwapb_gpio_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct dwapb_gpio *gpio = platform_get_drvdata(pdev);
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
unsigned long flags;
int i;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
for (i = 0; i < gpio->nr_ports; i++) {
unsigned int offset;
unsigned int idx = gpio->ports[i].idx;
@@ -666,7 +660,7 @@ static int dwapb_gpio_resume(struct device *dev)
dwapb_write(gpio, GPIO_PORTA_EOI, 0xffffffff);
}
}
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c
index 3e3947b35c83..ad279078fed7 100644
--- a/drivers/gpio/gpio-ep93xx.c
+++ b/drivers/gpio/gpio-ep93xx.c
@@ -16,10 +16,11 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/io.h>
-#include <linux/gpio.h>
#include <linux/irq.h>
#include <linux/slab.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
+/* FIXME: this is here for gpio_to_irq() - get rid of this! */
+#include <linux/gpio.h>
#include <mach/hardware.h>
#include <mach/gpio-ep93xx.h>
@@ -28,7 +29,7 @@
struct ep93xx_gpio {
void __iomem *mmio_base;
- struct bgpio_chip bgc[8];
+ struct gpio_chip gc[8];
};
/*************************************************************************
@@ -319,26 +320,26 @@ static int ep93xx_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
return 64 + gpio;
}
-static int ep93xx_gpio_add_bank(struct bgpio_chip *bgc, struct device *dev,
+static int ep93xx_gpio_add_bank(struct gpio_chip *gc, struct device *dev,
void __iomem *mmio_base, struct ep93xx_gpio_bank *bank)
{
void __iomem *data = mmio_base + bank->data;
void __iomem *dir = mmio_base + bank->dir;
int err;
- err = bgpio_init(bgc, dev, 1, data, NULL, NULL, dir, NULL, 0);
+ err = bgpio_init(gc, dev, 1, data, NULL, NULL, dir, NULL, 0);
if (err)
return err;
- bgc->gc.label = bank->label;
- bgc->gc.base = bank->base;
+ gc->label = bank->label;
+ gc->base = bank->base;
if (bank->has_debounce) {
- bgc->gc.set_debounce = ep93xx_gpio_set_debounce;
- bgc->gc.to_irq = ep93xx_gpio_to_irq;
+ gc->set_debounce = ep93xx_gpio_set_debounce;
+ gc->to_irq = ep93xx_gpio_to_irq;
}
- return gpiochip_add(&bgc->gc);
+ return gpiochip_add_data(gc, NULL);
}
static int ep93xx_gpio_probe(struct platform_device *pdev)
@@ -358,10 +359,10 @@ static int ep93xx_gpio_probe(struct platform_device *pdev)
return PTR_ERR(ep93xx_gpio->mmio_base);
for (i = 0; i < ARRAY_SIZE(ep93xx_gpio_banks); i++) {
- struct bgpio_chip *bgc = &ep93xx_gpio->bgc[i];
+ struct gpio_chip *gc = &ep93xx_gpio->gc[i];
struct ep93xx_gpio_bank *bank = &ep93xx_gpio_banks[i];
- if (ep93xx_gpio_add_bank(bgc, &pdev->dev,
+ if (ep93xx_gpio_add_bank(gc, &pdev->dev,
ep93xx_gpio->mmio_base, bank))
dev_warn(&pdev->dev, "Unable to add gpio bank %s\n",
bank->label);
diff --git a/drivers/gpio/gpio-etraxfs.c b/drivers/gpio/gpio-etraxfs.c
index 5c15dd12172d..00b022c9acb3 100644
--- a/drivers/gpio/gpio-etraxfs.c
+++ b/drivers/gpio/gpio-etraxfs.c
@@ -1,12 +1,10 @@
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/gpio.h>
#include <linux/gpio/driver.h>
#include <linux/of_gpio.h>
#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
-#include <linux/basic_mmio_gpio.h>
#define ETRAX_FS_rw_pa_dout 0
#define ETRAX_FS_r_pa_din 4
@@ -67,7 +65,7 @@ struct etraxfs_gpio_block {
};
struct etraxfs_gpio_chip {
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
struct etraxfs_gpio_block *block;
};
@@ -176,11 +174,6 @@ static const struct etraxfs_gpio_info etraxfs_gpio_artpec3 = {
.rw_intr_pins = ARTPEC3_rw_intr_pins,
};
-static struct etraxfs_gpio_chip *to_etraxfs(struct gpio_chip *gc)
-{
- return container_of(gc, struct etraxfs_gpio_chip, bgc.gc);
-}
-
static unsigned int etraxfs_gpio_chip_to_port(struct gpio_chip *gc)
{
return gc->label[0] - 'A';
@@ -220,13 +213,13 @@ static unsigned int etraxfs_gpio_to_group_irq(unsigned int gpio)
static unsigned int etraxfs_gpio_to_group_pin(struct etraxfs_gpio_chip *chip,
unsigned int gpio)
{
- return 4 * etraxfs_gpio_chip_to_port(&chip->bgc.gc) + gpio / 8;
+ return 4 * etraxfs_gpio_chip_to_port(&chip->gc) + gpio / 8;
}
static void etraxfs_gpio_irq_ack(struct irq_data *d)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
@@ -236,7 +229,7 @@ static void etraxfs_gpio_irq_ack(struct irq_data *d)
static void etraxfs_gpio_irq_mask(struct irq_data *d)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
@@ -249,7 +242,7 @@ static void etraxfs_gpio_irq_mask(struct irq_data *d)
static void etraxfs_gpio_irq_unmask(struct irq_data *d)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
@@ -262,7 +255,7 @@ static void etraxfs_gpio_irq_unmask(struct irq_data *d)
static int etraxfs_gpio_irq_set_type(struct irq_data *d, u32 type)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
u32 cfg;
@@ -299,7 +292,7 @@ static int etraxfs_gpio_irq_set_type(struct irq_data *d, u32 type)
static int etraxfs_gpio_irq_request_resources(struct irq_data *d)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
int ret = -EBUSY;
@@ -308,7 +301,7 @@ static int etraxfs_gpio_irq_request_resources(struct irq_data *d)
if (block->group[grpirq])
goto out;
- ret = gpiochip_lock_as_irq(&chip->bgc.gc, d->hwirq);
+ ret = gpiochip_lock_as_irq(&chip->gc, d->hwirq);
if (ret)
goto out;
@@ -330,13 +323,13 @@ out:
static void etraxfs_gpio_irq_release_resources(struct irq_data *d)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
spin_lock(&block->lock);
block->group[grpirq] = 0;
- gpiochip_unlock_as_irq(&chip->bgc.gc, d->hwirq);
+ gpiochip_unlock_as_irq(&chip->gc, d->hwirq);
spin_unlock(&block->lock);
}
@@ -419,7 +412,7 @@ static int etraxfs_gpio_probe(struct platform_device *pdev)
for (i = 0; i < info->num_ports; i++) {
struct etraxfs_gpio_chip *chip = &chips[i];
- struct bgpio_chip *bgc = &chip->bgc;
+ struct gpio_chip *gc = &chip->gc;
const struct etraxfs_gpio_port *port = &info->ports[i];
unsigned long flags = BGPIOF_READ_OUTPUT_REG_SET;
void __iomem *dat = regs + port->din;
@@ -433,7 +426,7 @@ static int etraxfs_gpio_probe(struct platform_device *pdev)
flags = BGPIOF_NO_OUTPUT;
}
- ret = bgpio_init(bgc, dev, 4,
+ ret = bgpio_init(gc, dev, 4,
dat, set, NULL, dirout, NULL,
flags);
if (ret) {
@@ -442,28 +435,28 @@ static int etraxfs_gpio_probe(struct platform_device *pdev)
continue;
}
- bgc->gc.ngpio = port->ngpio;
- bgc->gc.label = port->label;
+ gc->ngpio = port->ngpio;
+ gc->label = port->label;
- bgc->gc.of_node = dev->of_node;
- bgc->gc.of_gpio_n_cells = 3;
- bgc->gc.of_xlate = etraxfs_gpio_of_xlate;
+ gc->of_node = dev->of_node;
+ gc->of_gpio_n_cells = 3;
+ gc->of_xlate = etraxfs_gpio_of_xlate;
- ret = gpiochip_add(&bgc->gc);
+ ret = gpiochip_add_data(gc, chip);
if (ret) {
dev_err(dev, "Unable to register port %s\n",
- bgc->gc.label);
+ gc->label);
continue;
}
if (i > 0 && !allportsirq)
continue;
- ret = gpiochip_irqchip_add(&bgc->gc, &etraxfs_gpio_irq_chip, 0,
+ ret = gpiochip_irqchip_add(gc, &etraxfs_gpio_irq_chip, 0,
handle_level_irq, IRQ_TYPE_NONE);
if (ret) {
dev_err(dev, "Unable to add irqchip to port %s\n",
- bgc->gc.label);
+ gc->label);
}
}
diff --git a/drivers/gpio/gpio-ge.c b/drivers/gpio/gpio-ge.c
index f9ac3f351753..cbbec838a9d1 100644
--- a/drivers/gpio/gpio-ge.c
+++ b/drivers/gpio/gpio-ge.c
@@ -24,7 +24,7 @@
#include <linux/of_gpio.h>
#include <linux/of_address.h>
#include <linux/module.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#define GEF_GPIO_DIRECT 0x00
#define GEF_GPIO_IN 0x04
@@ -55,19 +55,19 @@ static int __init gef_gpio_probe(struct platform_device *pdev)
{
const struct of_device_id *of_id =
of_match_device(gef_gpio_ids, &pdev->dev);
- struct bgpio_chip *bgc;
+ struct gpio_chip *gc;
void __iomem *regs;
int ret;
- bgc = devm_kzalloc(&pdev->dev, sizeof(*bgc), GFP_KERNEL);
- if (!bgc)
+ gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
+ if (!gc)
return -ENOMEM;
regs = of_iomap(pdev->dev.of_node, 0);
if (!regs)
return -ENOMEM;
- ret = bgpio_init(bgc, &pdev->dev, 4, regs + GEF_GPIO_IN,
+ ret = bgpio_init(gc, &pdev->dev, 4, regs + GEF_GPIO_IN,
regs + GEF_GPIO_OUT, NULL, NULL,
regs + GEF_GPIO_DIRECT, BGPIOF_BIG_ENDIAN_BYTE_ORDER);
if (ret) {
@@ -76,20 +76,20 @@ static int __init gef_gpio_probe(struct platform_device *pdev)
}
/* Setup pointers to chip functions */
- bgc->gc.label = devm_kstrdup(&pdev->dev, pdev->dev.of_node->full_name,
+ gc->label = devm_kstrdup(&pdev->dev, pdev->dev.of_node->full_name,
GFP_KERNEL);
- if (!bgc->gc.label) {
+ if (!gc->label) {
ret = -ENOMEM;
goto err0;
}
- bgc->gc.base = -1;
- bgc->gc.ngpio = (u16)(uintptr_t)of_id->data;
- bgc->gc.of_gpio_n_cells = 2;
- bgc->gc.of_node = pdev->dev.of_node;
+ gc->base = -1;
+ gc->ngpio = (u16)(uintptr_t)of_id->data;
+ gc->of_gpio_n_cells = 2;
+ gc->of_node = pdev->dev.of_node;
/* This function adds a memory mapped GPIO chip */
- ret = gpiochip_add(&bgc->gc);
+ ret = gpiochip_add_data(gc, NULL);
if (ret)
goto err0;
diff --git a/drivers/gpio/gpio-generic.c b/drivers/gpio/gpio-generic.c
index 72088028d7a9..5eb7aaf43dc5 100644
--- a/drivers/gpio/gpio-generic.c
+++ b/drivers/gpio/gpio-generic.c
@@ -56,11 +56,10 @@ o ` ~~~~\___/~~~~ ` controller in FPGA is ,.`
#include <linux/log2.h>
#include <linux/ioport.h>
#include <linux/io.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/mod_devicetable.h>
-#include <linux/basic_mmio_gpio.h>
static void bgpio_write8(void __iomem *reg, unsigned long data)
{
@@ -124,33 +123,30 @@ static unsigned long bgpio_read32be(void __iomem *reg)
return ioread32be(reg);
}
-static unsigned long bgpio_pin2mask(struct bgpio_chip *bgc, unsigned int pin)
+static unsigned long bgpio_pin2mask(struct gpio_chip *gc, unsigned int pin)
{
return 1 << pin;
}
-static unsigned long bgpio_pin2mask_be(struct bgpio_chip *bgc,
+static unsigned long bgpio_pin2mask_be(struct gpio_chip *gc,
unsigned int pin)
{
- return 1 << (bgc->bits - 1 - pin);
+ return 1 << (gc->bgpio_bits - 1 - pin);
}
static int bgpio_get_set(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- unsigned long pinmask = bgc->pin2mask(bgc, gpio);
+ unsigned long pinmask = gc->pin2mask(gc, gpio);
- if (bgc->dir & pinmask)
- return bgc->read_reg(bgc->reg_set) & pinmask;
+ if (gc->bgpio_dir & pinmask)
+ return gc->read_reg(gc->reg_set) & pinmask;
else
- return bgc->read_reg(bgc->reg_dat) & pinmask;
+ return gc->read_reg(gc->reg_dat) & pinmask;
}
static int bgpio_get(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return !!(bgc->read_reg(bgc->reg_dat) & bgc->pin2mask(bgc, gpio));
+ return !!(gc->read_reg(gc->reg_dat) & gc->pin2mask(gc, gpio));
}
static void bgpio_set_none(struct gpio_chip *gc, unsigned int gpio, int val)
@@ -159,53 +155,50 @@ static void bgpio_set_none(struct gpio_chip *gc, unsigned int gpio, int val)
static void bgpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- unsigned long mask = bgc->pin2mask(bgc, gpio);
+ unsigned long mask = gc->pin2mask(gc, gpio);
unsigned long flags;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
if (val)
- bgc->data |= mask;
+ gc->bgpio_data |= mask;
else
- bgc->data &= ~mask;
+ gc->bgpio_data &= ~mask;
- bgc->write_reg(bgc->reg_dat, bgc->data);
+ gc->write_reg(gc->reg_dat, gc->bgpio_data);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
static void bgpio_set_with_clear(struct gpio_chip *gc, unsigned int gpio,
int val)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- unsigned long mask = bgc->pin2mask(bgc, gpio);
+ unsigned long mask = gc->pin2mask(gc, gpio);
if (val)
- bgc->write_reg(bgc->reg_set, mask);
+ gc->write_reg(gc->reg_set, mask);
else
- bgc->write_reg(bgc->reg_clr, mask);
+ gc->write_reg(gc->reg_clr, mask);
}
static void bgpio_set_set(struct gpio_chip *gc, unsigned int gpio, int val)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- unsigned long mask = bgc->pin2mask(bgc, gpio);
+ unsigned long mask = gc->pin2mask(gc, gpio);
unsigned long flags;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
if (val)
- bgc->data |= mask;
+ gc->bgpio_data |= mask;
else
- bgc->data &= ~mask;
+ gc->bgpio_data &= ~mask;
- bgc->write_reg(bgc->reg_set, bgc->data);
+ gc->write_reg(gc->reg_set, gc->bgpio_data);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
-static void bgpio_multiple_get_masks(struct bgpio_chip *bgc,
+static void bgpio_multiple_get_masks(struct gpio_chip *gc,
unsigned long *mask, unsigned long *bits,
unsigned long *set_mask,
unsigned long *clear_mask)
@@ -215,19 +208,19 @@ static void bgpio_multiple_get_masks(struct bgpio_chip *bgc,
*set_mask = 0;
*clear_mask = 0;
- for (i = 0; i < bgc->bits; i++) {
+ for (i = 0; i < gc->bgpio_bits; i++) {
if (*mask == 0)
break;
if (__test_and_clear_bit(i, mask)) {
if (test_bit(i, bits))
- *set_mask |= bgc->pin2mask(bgc, i);
+ *set_mask |= gc->pin2mask(gc, i);
else
- *clear_mask |= bgc->pin2mask(bgc, i);
+ *clear_mask |= gc->pin2mask(gc, i);
}
}
}
-static void bgpio_set_multiple_single_reg(struct bgpio_chip *bgc,
+static void bgpio_set_multiple_single_reg(struct gpio_chip *gc,
unsigned long *mask,
unsigned long *bits,
void __iomem *reg)
@@ -235,47 +228,42 @@ static void bgpio_set_multiple_single_reg(struct bgpio_chip *bgc,
unsigned long flags;
unsigned long set_mask, clear_mask;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
- bgpio_multiple_get_masks(bgc, mask, bits, &set_mask, &clear_mask);
+ bgpio_multiple_get_masks(gc, mask, bits, &set_mask, &clear_mask);
- bgc->data |= set_mask;
- bgc->data &= ~clear_mask;
+ gc->bgpio_data |= set_mask;
+ gc->bgpio_data &= ~clear_mask;
- bgc->write_reg(reg, bgc->data);
+ gc->write_reg(reg, gc->bgpio_data);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
static void bgpio_set_multiple(struct gpio_chip *gc, unsigned long *mask,
unsigned long *bits)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- bgpio_set_multiple_single_reg(bgc, mask, bits, bgc->reg_dat);
+ bgpio_set_multiple_single_reg(gc, mask, bits, gc->reg_dat);
}
static void bgpio_set_multiple_set(struct gpio_chip *gc, unsigned long *mask,
unsigned long *bits)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- bgpio_set_multiple_single_reg(bgc, mask, bits, bgc->reg_set);
+ bgpio_set_multiple_single_reg(gc, mask, bits, gc->reg_set);
}
static void bgpio_set_multiple_with_clear(struct gpio_chip *gc,
unsigned long *mask,
unsigned long *bits)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
unsigned long set_mask, clear_mask;
- bgpio_multiple_get_masks(bgc, mask, bits, &set_mask, &clear_mask);
+ bgpio_multiple_get_masks(gc, mask, bits, &set_mask, &clear_mask);
if (set_mask)
- bgc->write_reg(bgc->reg_set, set_mask);
+ gc->write_reg(gc->reg_set, set_mask);
if (clear_mask)
- bgc->write_reg(bgc->reg_clr, clear_mask);
+ gc->write_reg(gc->reg_clr, clear_mask);
}
static int bgpio_simple_dir_in(struct gpio_chip *gc, unsigned int gpio)
@@ -299,111 +287,103 @@ static int bgpio_simple_dir_out(struct gpio_chip *gc, unsigned int gpio,
static int bgpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
unsigned long flags;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
- bgc->dir &= ~bgc->pin2mask(bgc, gpio);
- bgc->write_reg(bgc->reg_dir, bgc->dir);
+ gc->bgpio_dir &= ~gc->pin2mask(gc, gpio);
+ gc->write_reg(gc->reg_dir, gc->bgpio_dir);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
static int bgpio_get_dir(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return (bgc->read_reg(bgc->reg_dir) & bgc->pin2mask(bgc, gpio)) ?
- GPIOF_DIR_OUT : GPIOF_DIR_IN;
+ /* Return 0 if output, 1 of input */
+ return !(gc->read_reg(gc->reg_dir) & gc->pin2mask(gc, gpio));
}
static int bgpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
unsigned long flags;
gc->set(gc, gpio, val);
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
- bgc->dir |= bgc->pin2mask(bgc, gpio);
- bgc->write_reg(bgc->reg_dir, bgc->dir);
+ gc->bgpio_dir |= gc->pin2mask(gc, gpio);
+ gc->write_reg(gc->reg_dir, gc->bgpio_dir);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
static int bgpio_dir_in_inv(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
unsigned long flags;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
- bgc->dir |= bgc->pin2mask(bgc, gpio);
- bgc->write_reg(bgc->reg_dir, bgc->dir);
+ gc->bgpio_dir |= gc->pin2mask(gc, gpio);
+ gc->write_reg(gc->reg_dir, gc->bgpio_dir);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
static int bgpio_dir_out_inv(struct gpio_chip *gc, unsigned int gpio, int val)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
unsigned long flags;
gc->set(gc, gpio, val);
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
- bgc->dir &= ~bgc->pin2mask(bgc, gpio);
- bgc->write_reg(bgc->reg_dir, bgc->dir);
+ gc->bgpio_dir &= ~gc->pin2mask(gc, gpio);
+ gc->write_reg(gc->reg_dir, gc->bgpio_dir);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
static int bgpio_get_dir_inv(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return (bgc->read_reg(bgc->reg_dir) & bgc->pin2mask(bgc, gpio)) ?
- GPIOF_DIR_IN : GPIOF_DIR_OUT;
+ /* Return 0 if output, 1 if input */
+ return !!(gc->read_reg(gc->reg_dir) & gc->pin2mask(gc, gpio));
}
static int bgpio_setup_accessors(struct device *dev,
- struct bgpio_chip *bgc,
+ struct gpio_chip *gc,
bool bit_be,
bool byte_be)
{
- switch (bgc->bits) {
+ switch (gc->bgpio_bits) {
case 8:
- bgc->read_reg = bgpio_read8;
- bgc->write_reg = bgpio_write8;
+ gc->read_reg = bgpio_read8;
+ gc->write_reg = bgpio_write8;
break;
case 16:
if (byte_be) {
- bgc->read_reg = bgpio_read16be;
- bgc->write_reg = bgpio_write16be;
+ gc->read_reg = bgpio_read16be;
+ gc->write_reg = bgpio_write16be;
} else {
- bgc->read_reg = bgpio_read16;
- bgc->write_reg = bgpio_write16;
+ gc->read_reg = bgpio_read16;
+ gc->write_reg = bgpio_write16;
}
break;
case 32:
if (byte_be) {
- bgc->read_reg = bgpio_read32be;
- bgc->write_reg = bgpio_write32be;
+ gc->read_reg = bgpio_read32be;
+ gc->write_reg = bgpio_write32be;
} else {
- bgc->read_reg = bgpio_read32;
- bgc->write_reg = bgpio_write32;
+ gc->read_reg = bgpio_read32;
+ gc->write_reg = bgpio_write32;
}
break;
#if BITS_PER_LONG >= 64
@@ -413,17 +393,17 @@ static int bgpio_setup_accessors(struct device *dev,
"64 bit big endian byte order unsupported\n");
return -EINVAL;
} else {
- bgc->read_reg = bgpio_read64;
- bgc->write_reg = bgpio_write64;
+ gc->read_reg = bgpio_read64;
+ gc->write_reg = bgpio_write64;
}
break;
#endif /* BITS_PER_LONG >= 64 */
default:
- dev_err(dev, "unsupported data width %u bits\n", bgc->bits);
+ dev_err(dev, "unsupported data width %u bits\n", gc->bgpio_bits);
return -EINVAL;
}
- bgc->pin2mask = bit_be ? bgpio_pin2mask_be : bgpio_pin2mask;
+ gc->pin2mask = bit_be ? bgpio_pin2mask_be : bgpio_pin2mask;
return 0;
}
@@ -450,44 +430,44 @@ static int bgpio_setup_accessors(struct device *dev,
* - an input direction register (named "dirin") where a 1 bit indicates
* the GPIO is an input.
*/
-static int bgpio_setup_io(struct bgpio_chip *bgc,
+static int bgpio_setup_io(struct gpio_chip *gc,
void __iomem *dat,
void __iomem *set,
void __iomem *clr,
unsigned long flags)
{
- bgc->reg_dat = dat;
- if (!bgc->reg_dat)
+ gc->reg_dat = dat;
+ if (!gc->reg_dat)
return -EINVAL;
if (set && clr) {
- bgc->reg_set = set;
- bgc->reg_clr = clr;
- bgc->gc.set = bgpio_set_with_clear;
- bgc->gc.set_multiple = bgpio_set_multiple_with_clear;
+ gc->reg_set = set;
+ gc->reg_clr = clr;
+ gc->set = bgpio_set_with_clear;
+ gc->set_multiple = bgpio_set_multiple_with_clear;
} else if (set && !clr) {
- bgc->reg_set = set;
- bgc->gc.set = bgpio_set_set;
- bgc->gc.set_multiple = bgpio_set_multiple_set;
+ gc->reg_set = set;
+ gc->set = bgpio_set_set;
+ gc->set_multiple = bgpio_set_multiple_set;
} else if (flags & BGPIOF_NO_OUTPUT) {
- bgc->gc.set = bgpio_set_none;
- bgc->gc.set_multiple = NULL;
+ gc->set = bgpio_set_none;
+ gc->set_multiple = NULL;
} else {
- bgc->gc.set = bgpio_set;
- bgc->gc.set_multiple = bgpio_set_multiple;
+ gc->set = bgpio_set;
+ gc->set_multiple = bgpio_set_multiple;
}
if (!(flags & BGPIOF_UNREADABLE_REG_SET) &&
(flags & BGPIOF_READ_OUTPUT_REG_SET))
- bgc->gc.get = bgpio_get_set;
+ gc->get = bgpio_get_set;
else
- bgc->gc.get = bgpio_get;
+ gc->get = bgpio_get;
return 0;
}
-static int bgpio_setup_direction(struct bgpio_chip *bgc,
+static int bgpio_setup_direction(struct gpio_chip *gc,
void __iomem *dirout,
void __iomem *dirin,
unsigned long flags)
@@ -495,21 +475,21 @@ static int bgpio_setup_direction(struct bgpio_chip *bgc,
if (dirout && dirin) {
return -EINVAL;
} else if (dirout) {
- bgc->reg_dir = dirout;
- bgc->gc.direction_output = bgpio_dir_out;
- bgc->gc.direction_input = bgpio_dir_in;
- bgc->gc.get_direction = bgpio_get_dir;
+ gc->reg_dir = dirout;
+ gc->direction_output = bgpio_dir_out;
+ gc->direction_input = bgpio_dir_in;
+ gc->get_direction = bgpio_get_dir;
} else if (dirin) {
- bgc->reg_dir = dirin;
- bgc->gc.direction_output = bgpio_dir_out_inv;
- bgc->gc.direction_input = bgpio_dir_in_inv;
- bgc->gc.get_direction = bgpio_get_dir_inv;
+ gc->reg_dir = dirin;
+ gc->direction_output = bgpio_dir_out_inv;
+ gc->direction_input = bgpio_dir_in_inv;
+ gc->get_direction = bgpio_get_dir_inv;
} else {
if (flags & BGPIOF_NO_OUTPUT)
- bgc->gc.direction_output = bgpio_dir_out_err;
+ gc->direction_output = bgpio_dir_out_err;
else
- bgc->gc.direction_output = bgpio_simple_dir_out;
- bgc->gc.direction_input = bgpio_simple_dir_in;
+ gc->direction_output = bgpio_simple_dir_out;
+ gc->direction_input = bgpio_simple_dir_in;
}
return 0;
@@ -523,14 +503,7 @@ static int bgpio_request(struct gpio_chip *chip, unsigned gpio_pin)
return -EINVAL;
}
-int bgpio_remove(struct bgpio_chip *bgc)
-{
- gpiochip_remove(&bgc->gc);
- return 0;
-}
-EXPORT_SYMBOL_GPL(bgpio_remove);
-
-int bgpio_init(struct bgpio_chip *bgc, struct device *dev,
+int bgpio_init(struct gpio_chip *gc, struct device *dev,
unsigned long sz, void __iomem *dat, void __iomem *set,
void __iomem *clr, void __iomem *dirout, void __iomem *dirin,
unsigned long flags)
@@ -540,36 +513,36 @@ int bgpio_init(struct bgpio_chip *bgc, struct device *dev,
if (!is_power_of_2(sz))
return -EINVAL;
- bgc->bits = sz * 8;
- if (bgc->bits > BITS_PER_LONG)
+ gc->bgpio_bits = sz * 8;
+ if (gc->bgpio_bits > BITS_PER_LONG)
return -EINVAL;
- spin_lock_init(&bgc->lock);
- bgc->gc.parent = dev;
- bgc->gc.label = dev_name(dev);
- bgc->gc.base = -1;
- bgc->gc.ngpio = bgc->bits;
- bgc->gc.request = bgpio_request;
+ spin_lock_init(&gc->bgpio_lock);
+ gc->parent = dev;
+ gc->label = dev_name(dev);
+ gc->base = -1;
+ gc->ngpio = gc->bgpio_bits;
+ gc->request = bgpio_request;
- ret = bgpio_setup_io(bgc, dat, set, clr, flags);
+ ret = bgpio_setup_io(gc, dat, set, clr, flags);
if (ret)
return ret;
- ret = bgpio_setup_accessors(dev, bgc, flags & BGPIOF_BIG_ENDIAN,
+ ret = bgpio_setup_accessors(dev, gc, flags & BGPIOF_BIG_ENDIAN,
flags & BGPIOF_BIG_ENDIAN_BYTE_ORDER);
if (ret)
return ret;
- ret = bgpio_setup_direction(bgc, dirout, dirin, flags);
+ ret = bgpio_setup_direction(gc, dirout, dirin, flags);
if (ret)
return ret;
- bgc->data = bgc->read_reg(bgc->reg_dat);
- if (bgc->gc.set == bgpio_set_set &&
+ gc->bgpio_data = gc->read_reg(gc->reg_dat);
+ if (gc->set == bgpio_set_set &&
!(flags & BGPIOF_UNREADABLE_REG_SET))
- bgc->data = bgc->read_reg(bgc->reg_set);
- if (bgc->reg_dir && !(flags & BGPIOF_UNREADABLE_REG_DIR))
- bgc->dir = bgc->read_reg(bgc->reg_dir);
+ gc->bgpio_data = gc->read_reg(gc->reg_set);
+ if (gc->reg_dir && !(flags & BGPIOF_UNREADABLE_REG_DIR))
+ gc->bgpio_dir = gc->read_reg(gc->reg_dir);
return ret;
}
@@ -607,7 +580,7 @@ static int bgpio_pdev_probe(struct platform_device *pdev)
unsigned long sz;
unsigned long flags = pdev->id_entry->driver_data;
int err;
- struct bgpio_chip *bgc;
+ struct gpio_chip *gc;
struct bgpio_pdata *pdata = dev_get_platdata(dev);
r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dat");
@@ -636,32 +609,33 @@ static int bgpio_pdev_probe(struct platform_device *pdev)
if (IS_ERR(dirin))
return PTR_ERR(dirin);
- bgc = devm_kzalloc(&pdev->dev, sizeof(*bgc), GFP_KERNEL);
- if (!bgc)
+ gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
+ if (!gc)
return -ENOMEM;
- err = bgpio_init(bgc, dev, sz, dat, set, clr, dirout, dirin, flags);
+ err = bgpio_init(gc, dev, sz, dat, set, clr, dirout, dirin, flags);
if (err)
return err;
if (pdata) {
if (pdata->label)
- bgc->gc.label = pdata->label;
- bgc->gc.base = pdata->base;
+ gc->label = pdata->label;
+ gc->base = pdata->base;
if (pdata->ngpio > 0)
- bgc->gc.ngpio = pdata->ngpio;
+ gc->ngpio = pdata->ngpio;
}
- platform_set_drvdata(pdev, bgc);
+ platform_set_drvdata(pdev, gc);
- return gpiochip_add(&bgc->gc);
+ return gpiochip_add_data(gc, NULL);
}
static int bgpio_pdev_remove(struct platform_device *pdev)
{
- struct bgpio_chip *bgc = platform_get_drvdata(pdev);
+ struct gpio_chip *gc = platform_get_drvdata(pdev);
- return bgpio_remove(bgc);
+ gpiochip_remove(gc);
+ return 0;
}
static const struct platform_device_id bgpio_id_table[] = {
diff --git a/drivers/gpio/gpio-grgpio.c b/drivers/gpio/gpio-grgpio.c
index 801423fe8143..7847dd34f86f 100644
--- a/drivers/gpio/gpio-grgpio.c
+++ b/drivers/gpio/gpio-grgpio.c
@@ -31,7 +31,7 @@
#include <linux/gpio.h>
#include <linux/slab.h>
#include <linux/err.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
@@ -63,7 +63,7 @@ struct grgpio_lirq {
};
struct grgpio_priv {
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
void __iomem *regs;
struct device *dev;
@@ -92,29 +92,22 @@ struct grgpio_priv {
struct grgpio_lirq lirqs[GRGPIO_MAX_NGPIO];
};
-static inline struct grgpio_priv *grgpio_gc_to_priv(struct gpio_chip *gc)
-{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return container_of(bgc, struct grgpio_priv, bgc);
-}
-
static void grgpio_set_imask(struct grgpio_priv *priv, unsigned int offset,
int val)
{
- struct bgpio_chip *bgc = &priv->bgc;
- unsigned long mask = bgc->pin2mask(bgc, offset);
+ struct gpio_chip *gc = &priv->gc;
+ unsigned long mask = gc->pin2mask(gc, offset);
if (val)
priv->imask |= mask;
else
priv->imask &= ~mask;
- bgc->write_reg(priv->regs + GRGPIO_IMASK, priv->imask);
+ gc->write_reg(priv->regs + GRGPIO_IMASK, priv->imask);
}
static int grgpio_to_irq(struct gpio_chip *gc, unsigned offset)
{
- struct grgpio_priv *priv = grgpio_gc_to_priv(gc);
+ struct grgpio_priv *priv = gpiochip_get_data(gc);
if (offset >= gc->ngpio)
return -ENXIO;
@@ -158,15 +151,15 @@ static int grgpio_irq_set_type(struct irq_data *d, unsigned int type)
return -EINVAL;
}
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
- ipol = priv->bgc.read_reg(priv->regs + GRGPIO_IPOL) & ~mask;
- iedge = priv->bgc.read_reg(priv->regs + GRGPIO_IEDGE) & ~mask;
+ ipol = priv->gc.read_reg(priv->regs + GRGPIO_IPOL) & ~mask;
+ iedge = priv->gc.read_reg(priv->regs + GRGPIO_IEDGE) & ~mask;
- priv->bgc.write_reg(priv->regs + GRGPIO_IPOL, ipol | pol);
- priv->bgc.write_reg(priv->regs + GRGPIO_IEDGE, iedge | edge);
+ priv->gc.write_reg(priv->regs + GRGPIO_IPOL, ipol | pol);
+ priv->gc.write_reg(priv->regs + GRGPIO_IEDGE, iedge | edge);
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
return 0;
}
@@ -177,11 +170,11 @@ static void grgpio_irq_mask(struct irq_data *d)
int offset = d->hwirq;
unsigned long flags;
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
grgpio_set_imask(priv, offset, 0);
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
}
static void grgpio_irq_unmask(struct irq_data *d)
@@ -190,11 +183,11 @@ static void grgpio_irq_unmask(struct irq_data *d)
int offset = d->hwirq;
unsigned long flags;
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
grgpio_set_imask(priv, offset, 1);
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
}
static struct irq_chip grgpio_irq_chip = {
@@ -207,12 +200,12 @@ static struct irq_chip grgpio_irq_chip = {
static irqreturn_t grgpio_irq_handler(int irq, void *dev)
{
struct grgpio_priv *priv = dev;
- int ngpio = priv->bgc.gc.ngpio;
+ int ngpio = priv->gc.ngpio;
unsigned long flags;
int i;
int match = 0;
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
/*
* For each gpio line, call its interrupt handler if it its underlying
@@ -228,7 +221,7 @@ static irqreturn_t grgpio_irq_handler(int irq, void *dev)
}
}
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
if (!match)
dev_warn(priv->dev, "No gpio line matched irq %d\n", irq);
@@ -260,7 +253,7 @@ static int grgpio_irq_map(struct irq_domain *d, unsigned int irq,
dev_dbg(priv->dev, "Mapping irq %d for gpio line %d\n",
irq, offset);
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
/* Request underlying irq if not already requested */
lirq->irq = irq;
@@ -273,14 +266,14 @@ static int grgpio_irq_map(struct irq_domain *d, unsigned int irq,
"Could not request underlying irq %d\n",
uirq->uirq);
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
return ret;
}
}
uirq->refcnt++;
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
/* Setup irq */
irq_set_chip_data(irq, priv);
@@ -298,13 +291,13 @@ static void grgpio_irq_unmap(struct irq_domain *d, unsigned int irq)
struct grgpio_lirq *lirq;
struct grgpio_uirq *uirq;
unsigned long flags;
- int ngpio = priv->bgc.gc.ngpio;
+ int ngpio = priv->gc.ngpio;
int i;
irq_set_chip_and_handler(irq, NULL, NULL);
irq_set_chip_data(irq, NULL);
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
/* Free underlying irq if last user unmapped */
index = -1;
@@ -326,7 +319,7 @@ static void grgpio_irq_unmap(struct irq_domain *d, unsigned int irq)
free_irq(uirq->uirq, priv);
}
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
}
static const struct irq_domain_ops grgpio_irq_domain_ops = {
@@ -341,7 +334,6 @@ static int grgpio_probe(struct platform_device *ofdev)
struct device_node *np = ofdev->dev.of_node;
void __iomem *regs;
struct gpio_chip *gc;
- struct bgpio_chip *bgc;
struct grgpio_priv *priv;
struct resource *res;
int err;
@@ -359,8 +351,8 @@ static int grgpio_probe(struct platform_device *ofdev)
if (IS_ERR(regs))
return PTR_ERR(regs);
- bgc = &priv->bgc;
- err = bgpio_init(bgc, &ofdev->dev, 4, regs + GRGPIO_DATA,
+ gc = &priv->gc;
+ err = bgpio_init(gc, &ofdev->dev, 4, regs + GRGPIO_DATA,
regs + GRGPIO_OUTPUT, NULL, regs + GRGPIO_DIR, NULL,
BGPIOF_BIG_ENDIAN_BYTE_ORDER);
if (err) {
@@ -369,10 +361,9 @@ static int grgpio_probe(struct platform_device *ofdev)
}
priv->regs = regs;
- priv->imask = bgc->read_reg(regs + GRGPIO_IMASK);
+ priv->imask = gc->read_reg(regs + GRGPIO_IMASK);
priv->dev = &ofdev->dev;
- gc = &bgc->gc;
gc->of_node = np;
gc->owner = THIS_MODULE;
gc->to_irq = grgpio_to_irq;
@@ -435,7 +426,7 @@ static int grgpio_probe(struct platform_device *ofdev)
platform_set_drvdata(ofdev, priv);
- err = gpiochip_add(gc);
+ err = gpiochip_add_data(gc, priv);
if (err) {
dev_err(&ofdev->dev, "Could not add gpiochip\n");
if (priv->domain)
@@ -456,7 +447,7 @@ static int grgpio_remove(struct platform_device *ofdev)
int i;
int ret = 0;
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
if (priv->domain) {
for (i = 0; i < GRGPIO_MAX_NGPIO; i++) {
@@ -467,13 +458,13 @@ static int grgpio_remove(struct platform_device *ofdev)
}
}
- gpiochip_remove(&priv->bgc.gc);
+ gpiochip_remove(&priv->gc);
if (priv->domain)
irq_domain_remove(priv->domain);
out:
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
return ret;
}
diff --git a/drivers/gpio/gpio-moxart.c b/drivers/gpio/gpio-moxart.c
index 8942f4909a31..71c13c4e12b5 100644
--- a/drivers/gpio/gpio-moxart.c
+++ b/drivers/gpio/gpio-moxart.c
@@ -14,7 +14,6 @@
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/io.h>
-#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/of_address.h>
@@ -23,7 +22,7 @@
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/bitops.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#define GPIO_DATA_OUT 0x00
#define GPIO_DATA_IN 0x04
@@ -33,12 +32,12 @@ static int moxart_gpio_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct resource *res;
- struct bgpio_chip *bgc;
+ struct gpio_chip *gc;
void __iomem *base;
int ret;
- bgc = devm_kzalloc(dev, sizeof(*bgc), GFP_KERNEL);
- if (!bgc)
+ gc = devm_kzalloc(dev, sizeof(*gc), GFP_KERNEL);
+ if (!gc)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -46,7 +45,7 @@ static int moxart_gpio_probe(struct platform_device *pdev)
if (IS_ERR(base))
return PTR_ERR(base);
- ret = bgpio_init(bgc, dev, 4, base + GPIO_DATA_IN,
+ ret = bgpio_init(gc, dev, 4, base + GPIO_DATA_IN,
base + GPIO_DATA_OUT, NULL,
base + GPIO_PIN_DIRECTION, NULL,
BGPIOF_READ_OUTPUT_REG_SET);
@@ -55,16 +54,16 @@ static int moxart_gpio_probe(struct platform_device *pdev)
return ret;
}
- bgc->gc.label = "moxart-gpio";
- bgc->gc.request = gpiochip_generic_request;
- bgc->gc.free = gpiochip_generic_free;
- bgc->data = bgc->read_reg(bgc->reg_set);
- bgc->gc.base = 0;
- bgc->gc.ngpio = 32;
- bgc->gc.parent = dev;
- bgc->gc.owner = THIS_MODULE;
+ gc->label = "moxart-gpio";
+ gc->request = gpiochip_generic_request;
+ gc->free = gpiochip_generic_free;
+ gc->bgpio_data = bgc->read_reg(bgc->reg_set);
+ gc->base = 0;
+ gc->ngpio = 32;
+ gc->parent = dev;
+ gc->owner = THIS_MODULE;
- ret = gpiochip_add(&bgc->gc);
+ ret = gpiochip_add_data(gc, NULL);
if (ret) {
dev_err(dev, "%s: gpiochip_add failed\n",
dev->of_node->full_name);
diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index 6ea8df6c7397..7fd21cb53c81 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -26,10 +26,11 @@
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
-#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
+/* FIXME: for gpio_get_value() replace this with direct register read */
+#include <linux/gpio.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/module.h>
@@ -64,7 +65,7 @@ struct mxc_gpio_port {
int irq;
int irq_high;
struct irq_domain *domain;
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
u32 both_edges;
};
@@ -172,7 +173,7 @@ static int gpio_set_irq_type(struct irq_data *d, u32 type)
struct mxc_gpio_port *port = gc->private;
u32 bit, val;
u32 gpio_idx = d->hwirq;
- u32 gpio = port->bgc.gc.base + gpio_idx;
+ u32 gpio = port->gc.base + gpio_idx;
int edge;
void __iomem *reg = port->base;
@@ -398,9 +399,7 @@ static void mxc_gpio_get_hw(struct platform_device *pdev)
static int mxc_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- struct mxc_gpio_port *port =
- container_of(bgc, struct mxc_gpio_port, bgc);
+ struct mxc_gpio_port *port = gpiochip_get_data(gc);
return irq_find_mapping(port->domain, offset);
}
@@ -451,7 +450,7 @@ static int mxc_gpio_probe(struct platform_device *pdev)
port);
}
- err = bgpio_init(&port->bgc, &pdev->dev, 4,
+ err = bgpio_init(&port->gc, &pdev->dev, 4,
port->base + GPIO_PSR,
port->base + GPIO_DR, NULL,
port->base + GPIO_GDIR, NULL,
@@ -459,13 +458,13 @@ static int mxc_gpio_probe(struct platform_device *pdev)
if (err)
goto out_bgio;
- port->bgc.gc.to_irq = mxc_gpio_to_irq;
- port->bgc.gc.base = (pdev->id < 0) ? of_alias_get_id(np, "gpio") * 32 :
+ port->gc.to_irq = mxc_gpio_to_irq;
+ port->gc.base = (pdev->id < 0) ? of_alias_get_id(np, "gpio") * 32 :
pdev->id * 32;
- err = gpiochip_add(&port->bgc.gc);
+ err = gpiochip_add_data(&port->gc, port);
if (err)
- goto out_bgpio_remove;
+ goto out_bgio;
irq_base = irq_alloc_descs(-1, 0, 32, numa_node_id());
if (irq_base < 0) {
@@ -494,9 +493,7 @@ out_irqdomain_remove:
out_irqdesc_free:
irq_free_descs(irq_base, 32);
out_gpiochip_remove:
- gpiochip_remove(&port->bgc.gc);
-out_bgpio_remove:
- bgpio_remove(&port->bgc);
+ gpiochip_remove(&port->gc);
out_bgio:
dev_info(&pdev->dev, "%s failed with errno %d\n", __func__, err);
return err;
diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
index a4288f428819..b9daa0bf32a4 100644
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -26,13 +26,14 @@
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
-#include <linux/gpio.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
+/* FIXME: for gpio_get_value(), replace this by direct register read */
+#include <linux/gpio.h>
#include <linux/module.h>
#define MXS_SET 0x4
@@ -64,7 +65,7 @@ struct mxs_gpio_port {
int id;
int irq;
struct irq_domain *domain;
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
enum mxs_gpio_id devid;
u32 both_edges;
};
@@ -93,7 +94,7 @@ static int mxs_gpio_set_irq_type(struct irq_data *d, unsigned int type)
port->both_edges &= ~pin_mask;
switch (type) {
case IRQ_TYPE_EDGE_BOTH:
- val = gpio_get_value(port->bgc.gc.base + d->hwirq);
+ val = gpio_get_value(port->gc.base + d->hwirq);
if (val)
edge = GPIO_INT_FALL_EDGE;
else
@@ -225,18 +226,14 @@ static int __init mxs_gpio_init_gc(struct mxs_gpio_port *port, int irq_base)
static int mxs_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- struct mxs_gpio_port *port =
- container_of(bgc, struct mxs_gpio_port, bgc);
+ struct mxs_gpio_port *port = gpiochip_get_data(gc);
return irq_find_mapping(port->domain, offset);
}
static int mxs_gpio_get_direction(struct gpio_chip *gc, unsigned offset)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- struct mxs_gpio_port *port =
- container_of(bgc, struct mxs_gpio_port, bgc);
+ struct mxs_gpio_port *port = gpiochip_get_data(gc);
u32 mask = 1 << offset;
u32 dir;
@@ -330,26 +327,24 @@ static int mxs_gpio_probe(struct platform_device *pdev)
irq_set_chained_handler_and_data(port->irq, mxs_gpio_irq_handler,
port);
- err = bgpio_init(&port->bgc, &pdev->dev, 4,
+ err = bgpio_init(&port->gc, &pdev->dev, 4,
port->base + PINCTRL_DIN(port),
port->base + PINCTRL_DOUT(port) + MXS_SET,
port->base + PINCTRL_DOUT(port) + MXS_CLR,
port->base + PINCTRL_DOE(port), NULL, 0);
if (err)
- goto out_irqdesc_free;
+ goto out_irqdomain_remove;
- port->bgc.gc.to_irq = mxs_gpio_to_irq;
- port->bgc.gc.get_direction = mxs_gpio_get_direction;
- port->bgc.gc.base = port->id * 32;
+ port->gc.to_irq = mxs_gpio_to_irq;
+ port->gc.get_direction = mxs_gpio_get_direction;
+ port->gc.base = port->id * 32;
- err = gpiochip_add(&port->bgc.gc);
+ err = gpiochip_add_data(&port->gc, port);
if (err)
- goto out_bgpio_remove;
+ goto out_irqdomain_remove;
return 0;
-out_bgpio_remove:
- bgpio_remove(&port->bgc);
out_irqdomain_remove:
irq_domain_remove(port->domain);
out_irqdesc_free:
diff --git a/drivers/gpio/gpio-sodaville.c b/drivers/gpio/gpio-sodaville.c
index 34b02b42ab9e..e3cb6772f6ec 100644
--- a/drivers/gpio/gpio-sodaville.c
+++ b/drivers/gpio/gpio-sodaville.c
@@ -10,7 +10,6 @@
*/
#include <linux/errno.h>
-#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/irq.h>
@@ -20,7 +19,7 @@
#include <linux/pci.h>
#include <linux/platform_device.h>
#include <linux/of_irq.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#define DRV_NAME "sdv_gpio"
#define SDV_NUM_PUB_GPIOS 12
@@ -43,7 +42,7 @@ struct sdv_gpio_chip_data {
void __iomem *gpio_pub_base;
struct irq_domain *id;
struct irq_chip_generic *gc;
- struct bgpio_chip bgpio;
+ struct gpio_chip chip;
};
static int sdv_gpio_pub_set_type(struct irq_data *d, unsigned int type)
@@ -226,14 +225,14 @@ static int sdv_gpio_probe(struct pci_dev *pdev,
writel(mux_val, sd->gpio_pub_base + GPMUXCTL);
}
- ret = bgpio_init(&sd->bgpio, &pdev->dev, 4,
+ ret = bgpio_init(&sd->chip, &pdev->dev, 4,
sd->gpio_pub_base + GPINR, sd->gpio_pub_base + GPOUTR,
NULL, sd->gpio_pub_base + GPOER, NULL, 0);
if (ret)
goto unmap;
- sd->bgpio.gc.ngpio = SDV_NUM_PUB_GPIOS;
+ sd->chip.ngpio = SDV_NUM_PUB_GPIOS;
- ret = gpiochip_add(&sd->bgpio.gc);
+ ret = gpiochip_add_data(&sd->chip, sd);
if (ret < 0) {
dev_err(&pdev->dev, "gpiochip_add() failed.\n");
goto unmap;
@@ -265,7 +264,7 @@ static void sdv_gpio_remove(struct pci_dev *pdev)
free_irq(pdev->irq, sd);
irq_free_descs(sd->irq_base, SDV_NUM_PUB_GPIOS);
- gpiochip_remove(&sd->bgpio.gc);
+ gpiochip_remove(&sd->chip);
pci_release_region(pdev, GPIO_BAR);
iounmap(sd->gpio_pub_base);
pci_disable_device(pdev);
diff --git a/drivers/gpio/gpio-xgene-sb.c b/drivers/gpio/gpio-xgene-sb.c
index d57068b9083e..282004deb5d4 100644
--- a/drivers/gpio/gpio-xgene-sb.c
+++ b/drivers/gpio/gpio-xgene-sb.c
@@ -23,10 +23,8 @@
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/of_gpio.h>
-#include <linux/gpio.h>
#include <linux/gpio/driver.h>
#include <linux/acpi.h>
-#include <linux/basic_mmio_gpio.h>
#include "gpiolib.h"
@@ -43,38 +41,31 @@
/**
* struct xgene_gpio_sb - GPIO-Standby private data structure.
- * @bgc: memory-mapped GPIO controllers.
+ * @gc: memory-mapped GPIO controllers.
* @irq: Mapping GPIO pins and interrupt number
* nirq: Number of GPIO pins that supports interrupt
*/
struct xgene_gpio_sb {
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
u32 *irq;
u32 nirq;
};
-static inline struct xgene_gpio_sb *to_xgene_gpio_sb(struct gpio_chip *gc)
-{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return container_of(bgc, struct xgene_gpio_sb, bgc);
-}
-
-static void xgene_gpio_set_bit(struct bgpio_chip *bgc, void __iomem *reg, u32 gpio, int val)
+static void xgene_gpio_set_bit(struct gpio_chip *gc, void __iomem *reg, u32 gpio, int val)
{
u32 data;
- data = bgc->read_reg(reg);
+ data = gc->read_reg(reg);
if (val)
data |= GPIO_MASK(gpio);
else
data &= ~GPIO_MASK(gpio);
- bgc->write_reg(reg, data);
+ gc->write_reg(reg, data);
}
static int apm_gpio_sb_to_irq(struct gpio_chip *gc, u32 gpio)
{
- struct xgene_gpio_sb *priv = to_xgene_gpio_sb(gc);
+ struct xgene_gpio_sb *priv = gpiochip_get_data(gc);
if (priv->irq[gpio])
return priv->irq[gpio];
@@ -99,15 +90,15 @@ static int xgene_gpio_sb_probe(struct platform_device *pdev)
if (IS_ERR(regs))
return PTR_ERR(regs);
- ret = bgpio_init(&priv->bgc, &pdev->dev, 4,
+ ret = bgpio_init(&priv->gc, &pdev->dev, 4,
regs + MPA_GPIO_IN_ADDR,
regs + MPA_GPIO_OUT_ADDR, NULL,
regs + MPA_GPIO_OE_ADDR, NULL, 0);
if (ret)
return ret;
- priv->bgc.gc.to_irq = apm_gpio_sb_to_irq;
- priv->bgc.gc.ngpio = XGENE_MAX_GPIO_DS;
+ priv->gc.to_irq = apm_gpio_sb_to_irq;
+ priv->gc.ngpio = XGENE_MAX_GPIO_DS;
priv->nirq = XGENE_MAX_GPIO_DS_IRQ;
@@ -118,14 +109,14 @@ static int xgene_gpio_sb_probe(struct platform_device *pdev)
for (i = 0; i < priv->nirq; i++) {
priv->irq[default_lines[i]] = platform_get_irq(pdev, i);
- xgene_gpio_set_bit(&priv->bgc, regs + MPA_GPIO_SEL_LO,
+ xgene_gpio_set_bit(&priv->gc, regs + MPA_GPIO_SEL_LO,
default_lines[i] * 2, 1);
- xgene_gpio_set_bit(&priv->bgc, regs + MPA_GPIO_INT_LVL, i, 1);
+ xgene_gpio_set_bit(&priv->gc, regs + MPA_GPIO_INT_LVL, i, 1);
}
platform_set_drvdata(pdev, priv);
- ret = gpiochip_add(&priv->bgc.gc);
+ ret = gpiochip_add_data(&priv->gc, priv);
if (ret)
dev_err(&pdev->dev, "failed to register X-Gene GPIO Standby driver\n");
else
@@ -133,7 +124,7 @@ static int xgene_gpio_sb_probe(struct platform_device *pdev)
if (priv->nirq > 0) {
/* Register interrupt handlers for gpio signaled acpi events */
- acpi_gpiochip_request_interrupts(&priv->bgc.gc);
+ acpi_gpiochip_request_interrupts(&priv->gc);
}
return ret;
@@ -144,10 +135,11 @@ static int xgene_gpio_sb_remove(struct platform_device *pdev)
struct xgene_gpio_sb *priv = platform_get_drvdata(pdev);
if (priv->nirq > 0) {
- acpi_gpiochip_free_interrupts(&priv->bgc.gc);
+ acpi_gpiochip_free_interrupts(&priv->gc);
}
- return bgpio_remove(&priv->bgc);
+ gpiochip_remove(&priv->gc);
+ return 0;
}
static const struct of_device_id xgene_gpio_sb_of_match[] = {
diff --git a/drivers/mfd/vexpress-sysreg.c b/drivers/mfd/vexpress-sysreg.c
index 3e628df9280c..855c0204f09a 100644
--- a/drivers/mfd/vexpress-sysreg.c
+++ b/drivers/mfd/vexpress-sysreg.c
@@ -11,7 +11,7 @@
* Copyright (C) 2012 ARM Limited
*/
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/mfd/core.h>
@@ -164,7 +164,7 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
{
struct resource *mem;
void __iomem *base;
- struct bgpio_chip *mmc_gpio_chip;
+ struct gpio_chip *mmc_gpio_chip;
int master;
u32 dt_hbi;
@@ -201,8 +201,8 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
return -ENOMEM;
bgpio_init(mmc_gpio_chip, &pdev->dev, 0x4, base + SYS_MCI,
NULL, NULL, NULL, NULL, 0);
- mmc_gpio_chip->gc.ngpio = 2;
- gpiochip_add(&mmc_gpio_chip->gc);
+ mmc_gpio_chip->ngpio = 2;
+ gpiochip_add(mmc_gpio_chip);
return mfd_add_devices(&pdev->dev, PLATFORM_DEVID_AUTO,
vexpress_sysreg_cells,
diff --git a/include/linux/basic_mmio_gpio.h b/include/linux/basic_mmio_gpio.h
deleted file mode 100644
index ed3768f4ecc7..000000000000
--- a/include/linux/basic_mmio_gpio.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Basic memory-mapped GPIO controllers.
- *
- * Copyright 2008 MontaVista Software, Inc.
- * Copyright 2008,2010 Anton Vorontsov <cbouatmailru@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#ifndef __BASIC_MMIO_GPIO_H
-#define __BASIC_MMIO_GPIO_H
-
-#include <linux/gpio.h>
-#include <linux/types.h>
-#include <linux/compiler.h>
-#include <linux/spinlock_types.h>
-
-struct bgpio_pdata {
- const char *label;
- int base;
- int ngpio;
-};
-
-struct device;
-
-struct bgpio_chip {
- struct gpio_chip gc;
-
- unsigned long (*read_reg)(void __iomem *reg);
- void (*write_reg)(void __iomem *reg, unsigned long data);
-
- void __iomem *reg_dat;
- void __iomem *reg_set;
- void __iomem *reg_clr;
- void __iomem *reg_dir;
-
- /* Number of bits (GPIOs): <register width> * 8. */
- int bits;
-
- /*
- * Some GPIO controllers work with the big-endian bits notation,
- * e.g. in a 8-bits register, GPIO7 is the least significant bit.
- */
- unsigned long (*pin2mask)(struct bgpio_chip *bgc, unsigned int pin);
-
- /*
- * Used to lock bgpio_chip->data. Also, this is needed to keep
- * shadowed and real data registers writes together.
- */
- spinlock_t lock;
-
- /* Shadowed data register to clear/set bits safely. */
- unsigned long data;
-
- /* Shadowed direction registers to clear/set direction safely. */
- unsigned long dir;
-};
-
-static inline struct bgpio_chip *to_bgpio_chip(struct gpio_chip *gc)
-{
- return container_of(gc, struct bgpio_chip, gc);
-}
-
-int bgpio_remove(struct bgpio_chip *bgc);
-int bgpio_init(struct bgpio_chip *bgc, struct device *dev,
- unsigned long sz, void __iomem *dat, void __iomem *set,
- void __iomem *clr, void __iomem *dirout, void __iomem *dirin,
- unsigned long flags);
-
-#define BGPIOF_BIG_ENDIAN BIT(0)
-#define BGPIOF_UNREADABLE_REG_SET BIT(1) /* reg_set is unreadable */
-#define BGPIOF_UNREADABLE_REG_DIR BIT(2) /* reg_dir is unreadable */
-#define BGPIOF_BIG_ENDIAN_BYTE_ORDER BIT(3)
-#define BGPIOF_READ_OUTPUT_REG_SET BIT(4) /* reg_set stores output value */
-#define BGPIOF_NO_OUTPUT BIT(5) /* only input */
-
-#endif /* __BASIC_MMIO_GPIO_H */
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index f066742061f2..3334ba66f6a8 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -8,6 +8,7 @@
#include <linux/irqdomain.h>
#include <linux/lockdep.h>
#include <linux/pinctrl/pinctrl.h>
+#include <linux/kconfig.h>
struct device;
struct gpio_desc;
@@ -66,6 +67,23 @@ struct seq_file;
* registers.
* @irq_not_threaded: flag must be set if @can_sleep is set but the
* IRQs don't need to be threaded
+ * @read_reg: reader function for generic GPIO
+ * @write_reg: writer function for generic GPIO
+ * @pin2mask: some generic GPIO controllers work with the big-endian bits
+ * notation, e.g. in a 8-bits register, GPIO7 is the least significant
+ * bit. This callback assigns the right bit mask.
+ * @reg_dat: data (in) register for generic GPIO
+ * @reg_set: output set register (out=high) for generic GPIO
+ * @reg_clk: output clear register (out=low) for generic GPIO
+ * @reg_dir: direction setting register for generic GPIO
+ * @bgpio_bits: number of register bits used for a generic GPIO i.e.
+ * <register width> * 8
+ * @bgpio_lock: used to lock chip->bgpio_data. Also, this is needed to keep
+ * shadowed and real data registers writes together.
+ * @bgpio_data: shadowed data register for generic GPIO to clear/set bits
+ * safely.
+ * @bgpio_dir: shadowed direction register for generic GPIO to clear/set
+ * direction safely.
* @irqchip: GPIO IRQ chip impl, provided by GPIO driver
* @irqdomain: Interrupt translation domain; responsible for mapping
* between GPIO hwirq number and linux irq number
@@ -129,6 +147,20 @@ struct gpio_chip {
bool can_sleep;
bool irq_not_threaded;
+#if IS_ENABLED(CONFIG_GPIO_GENERIC)
+ unsigned long (*read_reg)(void __iomem *reg);
+ void (*write_reg)(void __iomem *reg, unsigned long data);
+ unsigned long (*pin2mask)(struct gpio_chip *gc, unsigned int pin);
+ void __iomem *reg_dat;
+ void __iomem *reg_set;
+ void __iomem *reg_clr;
+ void __iomem *reg_dir;
+ int bgpio_bits;
+ spinlock_t bgpio_lock;
+ unsigned long bgpio_data;
+ unsigned long bgpio_dir;
+#endif
+
#ifdef CONFIG_GPIOLIB_IRQCHIP
/*
* With CONFIG_GPIOLIB_IRQCHIP we get an irqchip inside the gpiolib
@@ -189,6 +221,28 @@ static inline void *gpiochip_get_data(struct gpio_chip *chip)
struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc);
+#if IS_ENABLED(CONFIG_GPIO_GENERIC)
+
+struct bgpio_pdata {
+ const char *label;
+ int base;
+ int ngpio;
+};
+
+int bgpio_init(struct gpio_chip *gc, struct device *dev,
+ unsigned long sz, void __iomem *dat, void __iomem *set,
+ void __iomem *clr, void __iomem *dirout, void __iomem *dirin,
+ unsigned long flags);
+
+#define BGPIOF_BIG_ENDIAN BIT(0)
+#define BGPIOF_UNREADABLE_REG_SET BIT(1) /* reg_set is unreadable */
+#define BGPIOF_UNREADABLE_REG_DIR BIT(2) /* reg_dir is unreadable */
+#define BGPIOF_BIG_ENDIAN_BYTE_ORDER BIT(3)
+#define BGPIOF_READ_OUTPUT_REG_SET BIT(4) /* reg_set stores output value */
+#define BGPIOF_NO_OUTPUT BIT(5) /* only input */
+
+#endif
+
#ifdef CONFIG_GPIOLIB_IRQCHIP
void gpiochip_set_chained_irqchip(struct gpio_chip *gpiochip,
--
2.4.3
^ permalink raw reply related [flat|nested] 18+ messages in thread
* Re: [PATCH 004/182] gpio: generic: factor into gpio_chip struct
2015-12-09 13:12 ` Linus Walleij
@ 2015-12-09 15:45 ` Liviu Dudau
-1 siblings, 0 replies; 18+ messages in thread
From: Liviu Dudau @ 2015-12-09 15:45 UTC (permalink / raw)
To: Linus Walleij
Cc: linux-gpio, Johan Hovold, Alexandre Courbot, Michael Welling,
Markus Pargmann, Anton Vorontsov, arm, Lee Jones,
Alexander Shiyan, Shawn Guo, Sascha Hauer, Tony Lindgren,
Kukjin Kim, Krzysztof Kozlowski, Alexandre Courbot, Gregory Fong,
Brian Norris, Florian Fainelli, Sudeep Holla, Lorenzo Pieralisi,
Nicolas Pitre, Olof Johansson, Vladimir Zapolskiy, Rabin Vincent
On Wed, Dec 09, 2015 at 02:12:40PM +0100, Linus Walleij wrote:
> The separate struct bgpio_chip has been a pain to handle, both
> by being confusingly similar in name to struct gpio_chip and
> for being contained inside a struct so that struct gpio_chip
> is contained in a struct contained in a struct, making several
> steps of dereferencing necessary.
>
> Make things simpler: include the fields directly into
> <linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
> get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
> some of the member variables with bgpio_* and add proper
> kerneldoc while we're at it.
>
> Modify all users to handle the change and use a struct
> gpio_chip directly. And while we're at it: replace all
> container_of() dereferencing by gpiochip_get_data() and
> registering the gpio_chip with gpiochip_add_data().
>
> Cc: arm@kernel.org
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Alexander Shiyan <shc_work@mail.ru>
> Cc: Shawn Guo <shawnguo@kernel.org>
> Cc: Sascha Hauer <kernel@pengutronix.de>
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: Kukjin Kim <kgene@kernel.org>
> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> Cc: Alexandre Courbot <gnurou@gmail.com>
> Cc: Gregory Fong <gregory.0xf0@gmail.com>
> Cc: Brian Norris <computersforpeace@gmail.com>
> Cc: Florian Fainelli <f.fainelli@gmail.com>
> Cc: Liviu Dudau <liviu.dudau@arm.com>
> Cc: Sudeep Holla <sudeep.holla@arm.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
> Cc: Olof Johansson <olof@lixom.net>
> Cc: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
> Cc: Rabin Vincent <rabin@rab.in>
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-omap@vger.kernel.org
> Cc: linux-samsung-soc@vger.kernel.org
> Cc: bcm-kernel-feedback-list@broadcom.com
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> ARM SoC folks and Lee: it would be great if you could
> ACK the few lines hitting arch/arm/* and drivers/mfd/* in this
> so I can take it through the GPIO tree.
> ---
[....]
> drivers/mfd/vexpress-sysreg.c | 8 +-
[....]
> diff --git a/drivers/mfd/vexpress-sysreg.c b/drivers/mfd/vexpress-sysreg.c
> index 3e628df9280c..855c0204f09a 100644
> --- a/drivers/mfd/vexpress-sysreg.c
> +++ b/drivers/mfd/vexpress-sysreg.c
> @@ -11,7 +11,7 @@
> * Copyright (C) 2012 ARM Limited
> */
>
> -#include <linux/basic_mmio_gpio.h>
> +#include <linux/gpio/driver.h>
> #include <linux/err.h>
> #include <linux/io.h>
> #include <linux/mfd/core.h>
> @@ -164,7 +164,7 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
> {
> struct resource *mem;
> void __iomem *base;
> - struct bgpio_chip *mmc_gpio_chip;
> + struct gpio_chip *mmc_gpio_chip;
> int master;
> u32 dt_hbi;
>
> @@ -201,8 +201,8 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
> return -ENOMEM;
> bgpio_init(mmc_gpio_chip, &pdev->dev, 0x4, base + SYS_MCI,
> NULL, NULL, NULL, NULL, 0);
> - mmc_gpio_chip->gc.ngpio = 2;
> - gpiochip_add(&mmc_gpio_chip->gc);
> + mmc_gpio_chip->ngpio = 2;
> + gpiochip_add(mmc_gpio_chip);
>
> return mfd_add_devices(&pdev->dev, PLATFORM_DEVID_AUTO,
> vexpress_sysreg_cells,
[....]
> --
> 2.4.3
>
For the drivers/mfd/vexpress-sysreg.c part:
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
--
====================
| I would like to |
| fix the world, |
| but they're not |
| giving me the |
\ source code! /
---------------
¯\_(ツ)_/¯
--
To unsubscribe from this list: send the line "unsubscribe linux-gpio" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 18+ messages in thread
* [PATCH 004/182] gpio: generic: factor into gpio_chip struct
@ 2015-12-09 15:45 ` Liviu Dudau
0 siblings, 0 replies; 18+ messages in thread
From: Liviu Dudau @ 2015-12-09 15:45 UTC (permalink / raw)
To: linux-arm-kernel
On Wed, Dec 09, 2015 at 02:12:40PM +0100, Linus Walleij wrote:
> The separate struct bgpio_chip has been a pain to handle, both
> by being confusingly similar in name to struct gpio_chip and
> for being contained inside a struct so that struct gpio_chip
> is contained in a struct contained in a struct, making several
> steps of dereferencing necessary.
>
> Make things simpler: include the fields directly into
> <linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
> get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
> some of the member variables with bgpio_* and add proper
> kerneldoc while we're at it.
>
> Modify all users to handle the change and use a struct
> gpio_chip directly. And while we're at it: replace all
> container_of() dereferencing by gpiochip_get_data() and
> registering the gpio_chip with gpiochip_add_data().
>
> Cc: arm at kernel.org
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Alexander Shiyan <shc_work@mail.ru>
> Cc: Shawn Guo <shawnguo@kernel.org>
> Cc: Sascha Hauer <kernel@pengutronix.de>
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: Kukjin Kim <kgene@kernel.org>
> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> Cc: Alexandre Courbot <gnurou@gmail.com>
> Cc: Gregory Fong <gregory.0xf0@gmail.com>
> Cc: Brian Norris <computersforpeace@gmail.com>
> Cc: Florian Fainelli <f.fainelli@gmail.com>
> Cc: Liviu Dudau <liviu.dudau@arm.com>
> Cc: Sudeep Holla <sudeep.holla@arm.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
> Cc: Olof Johansson <olof@lixom.net>
> Cc: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
> Cc: Rabin Vincent <rabin@rab.in>
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: linux-omap at vger.kernel.org
> Cc: linux-samsung-soc at vger.kernel.org
> Cc: bcm-kernel-feedback-list at broadcom.com
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> ARM SoC folks and Lee: it would be great if you could
> ACK the few lines hitting arch/arm/* and drivers/mfd/* in this
> so I can take it through the GPIO tree.
> ---
[....]
> drivers/mfd/vexpress-sysreg.c | 8 +-
[....]
> diff --git a/drivers/mfd/vexpress-sysreg.c b/drivers/mfd/vexpress-sysreg.c
> index 3e628df9280c..855c0204f09a 100644
> --- a/drivers/mfd/vexpress-sysreg.c
> +++ b/drivers/mfd/vexpress-sysreg.c
> @@ -11,7 +11,7 @@
> * Copyright (C) 2012 ARM Limited
> */
>
> -#include <linux/basic_mmio_gpio.h>
> +#include <linux/gpio/driver.h>
> #include <linux/err.h>
> #include <linux/io.h>
> #include <linux/mfd/core.h>
> @@ -164,7 +164,7 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
> {
> struct resource *mem;
> void __iomem *base;
> - struct bgpio_chip *mmc_gpio_chip;
> + struct gpio_chip *mmc_gpio_chip;
> int master;
> u32 dt_hbi;
>
> @@ -201,8 +201,8 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
> return -ENOMEM;
> bgpio_init(mmc_gpio_chip, &pdev->dev, 0x4, base + SYS_MCI,
> NULL, NULL, NULL, NULL, 0);
> - mmc_gpio_chip->gc.ngpio = 2;
> - gpiochip_add(&mmc_gpio_chip->gc);
> + mmc_gpio_chip->ngpio = 2;
> + gpiochip_add(mmc_gpio_chip);
>
> return mfd_add_devices(&pdev->dev, PLATFORM_DEVID_AUTO,
> vexpress_sysreg_cells,
[....]
> --
> 2.4.3
>
For the drivers/mfd/vexpress-sysreg.c part:
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
--
====================
| I would like to |
| fix the world, |
| but they're not |
| giving me the |
\ source code! /
---------------
?\_(?)_/?
^ permalink raw reply [flat|nested] 18+ messages in thread
* RE: [PATCH 004/182] gpio: generic: factor into gpio_chip struct
2015-12-09 13:12 ` Linus Walleij
@ 2015-12-09 18:10 ` Hartley Sweeten
-1 siblings, 0 replies; 18+ messages in thread
From: Hartley Sweeten @ 2015-12-09 18:10 UTC (permalink / raw)
To: Linus Walleij, linux-gpio, Johan Hovold, Alexandre Courbot,
Michael Welling, Markus Pargmann, Anton Vorontsov
Cc: Nicolas Pitre, Krzysztof Kozlowski, Tony Lindgren, Liviu Dudau,
Lee Jones, Alexandre Courbot, Florian Fainelli, Alexander Shiyan,
linux-samsung-soc, arm, bcm-kernel-feedback-list,
Lorenzo Pieralisi, Gregory Fong, linux-omap, linux-arm-kernel,
Rabin Vincent, Kukjin Kim, Sascha Hauer, Sudeep Holla, Olof
On Wednesday, December 09, 2015 6:13 AM, Linus Walleij wrote:
> The separate struct bgpio_chip has been a pain to handle, both
> by being confusingly similar in name to struct gpio_chip and
> for being contained inside a struct so that struct gpio_chip
> is contained in a struct contained in a struct, making several
> steps of dereferencing necessary.
>
> Make things simpler: include the fields directly into
> <linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
> get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
> some of the member variables with bgpio_* and add proper
> kerneldoc while we're at it.
>
> Modify all users to handle the change and use a struct
> gpio_chip directly. And while we're at it: replace all
> container_of() dereferencing by gpiochip_get_data() and
> registering the gpio_chip with gpiochip_add_data().
>
> Cc: arm@kernel.org
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Alexander Shiyan <shc_work@mail.ru>
> Cc: Shawn Guo <shawnguo@kernel.org>
> Cc: Sascha Hauer <kernel@pengutronix.de>
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: Kukjin Kim <kgene@kernel.org>
> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> Cc: Alexandre Courbot <gnurou@gmail.com>
> Cc: Gregory Fong <gregory.0xf0@gmail.com>
> Cc: Brian Norris <computersforpeace@gmail.com>
> Cc: Florian Fainelli <f.fainelli@gmail.com>
> Cc: Liviu Dudau <liviu.dudau@arm.com>
> Cc: Sudeep Holla <sudeep.holla@arm.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
> Cc: Olof Johansson <olof@lixom.net>
> Cc: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
> Cc: Rabin Vincent <rabin@rab.in>
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-omap@vger.kernel.org
> Cc: linux-samsung-soc@vger.kernel.org
> Cc: bcm-kernel-feedback-list@broadcom.com
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> ARM SoC folks and Lee: it would be great if you could
> ACK the few lines hitting arch/arm/* and drivers/mfd/* in this
> so I can take it through the GPIO tree.
> ---
<snip>
> drivers/gpio/gpio-ep93xx.c | 25 +--
<snip>
> diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c
> index 3e3947b35c83..ad279078fed7 100644
> --- a/drivers/gpio/gpio-ep93xx.c
> +++ b/drivers/gpio/gpio-ep93xx.c
> @@ -16,10 +16,11 @@
> #include <linux/module.h>
> #include <linux/platform_device.h>
> #include <linux/io.h>
> -#include <linux/gpio.h>
> #include <linux/irq.h>
> #include <linux/slab.h>
> -#include <linux/basic_mmio_gpio.h>
> +#include <linux/gpio/driver.h>
> +/* FIXME: this is here for gpio_to_irq() - get rid of this! */
> +#include <linux/gpio.h>
>
> #include <mach/hardware.h>
> #include <mach/gpio-ep93xx.h>
> @@ -28,7 +29,7 @@
>
> struct ep93xx_gpio {
> void __iomem *mmio_base;
> - struct bgpio_chip bgc[8];
> + struct gpio_chip gc[8];
> };
>
> /*************************************************************************
> @@ -319,26 +320,26 @@ static int ep93xx_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
> return 64 + gpio;
> }
>
> -static int ep93xx_gpio_add_bank(struct bgpio_chip *bgc, struct device *dev,
> +static int ep93xx_gpio_add_bank(struct gpio_chip *gc, struct device *dev,
> void __iomem *mmio_base, struct ep93xx_gpio_bank *bank)
> {
> void __iomem *data = mmio_base + bank->data;
> void __iomem *dir = mmio_base + bank->dir;
> int err;
>
> - err = bgpio_init(bgc, dev, 1, data, NULL, NULL, dir, NULL, 0);
> + err = bgpio_init(gc, dev, 1, data, NULL, NULL, dir, NULL, 0);
> if (err)
> return err;
>
> - bgc->gc.label = bank->label;
> - bgc->gc.base = bank->base;
> + gc->label = bank->label;
> + gc->base = bank->base;
>
> if (bank->has_debounce) {
> - bgc->gc.set_debounce = ep93xx_gpio_set_debounce;
> - bgc->gc.to_irq = ep93xx_gpio_to_irq;
> + gc->set_debounce = ep93xx_gpio_set_debounce;
> + gc->to_irq = ep93xx_gpio_to_irq;
> }
>
> - return gpiochip_add(&bgc->gc);
> + return gpiochip_add_data(gc, NULL);
> }
>
> static int ep93xx_gpio_probe(struct platform_device *pdev)
> @@ -358,10 +359,10 @@ static int ep93xx_gpio_probe(struct platform_device *pdev)
> return PTR_ERR(ep93xx_gpio->mmio_base);
>
> for (i = 0; i < ARRAY_SIZE(ep93xx_gpio_banks); i++) {
> - struct bgpio_chip *bgc = &ep93xx_gpio->bgc[i];
> + struct gpio_chip *gc = &ep93xx_gpio->gc[i];
> struct ep93xx_gpio_bank *bank = &ep93xx_gpio_banks[i];
>
> - if (ep93xx_gpio_add_bank(bgc, &pdev->dev,
> + if (ep93xx_gpio_add_bank(gc, &pdev->dev,
> ep93xx_gpio->mmio_base, bank))
> dev_warn(&pdev->dev, "Unable to add gpio bank %s\n",
> bank->label);
For the drivers/gpio/gpio-ep93xx.c part:
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
^ permalink raw reply [flat|nested] 18+ messages in thread
* [PATCH 004/182] gpio: generic: factor into gpio_chip struct
@ 2015-12-09 18:10 ` Hartley Sweeten
0 siblings, 0 replies; 18+ messages in thread
From: Hartley Sweeten @ 2015-12-09 18:10 UTC (permalink / raw)
To: linux-arm-kernel
On Wednesday, December 09, 2015 6:13 AM, Linus Walleij wrote:
> The separate struct bgpio_chip has been a pain to handle, both
> by being confusingly similar in name to struct gpio_chip and
> for being contained inside a struct so that struct gpio_chip
> is contained in a struct contained in a struct, making several
> steps of dereferencing necessary.
>
> Make things simpler: include the fields directly into
> <linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
> get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
> some of the member variables with bgpio_* and add proper
> kerneldoc while we're at it.
>
> Modify all users to handle the change and use a struct
> gpio_chip directly. And while we're at it: replace all
> container_of() dereferencing by gpiochip_get_data() and
> registering the gpio_chip with gpiochip_add_data().
>
> Cc: arm at kernel.org
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Alexander Shiyan <shc_work@mail.ru>
> Cc: Shawn Guo <shawnguo@kernel.org>
> Cc: Sascha Hauer <kernel@pengutronix.de>
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: Kukjin Kim <kgene@kernel.org>
> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> Cc: Alexandre Courbot <gnurou@gmail.com>
> Cc: Gregory Fong <gregory.0xf0@gmail.com>
> Cc: Brian Norris <computersforpeace@gmail.com>
> Cc: Florian Fainelli <f.fainelli@gmail.com>
> Cc: Liviu Dudau <liviu.dudau@arm.com>
> Cc: Sudeep Holla <sudeep.holla@arm.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
> Cc: Olof Johansson <olof@lixom.net>
> Cc: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
> Cc: Rabin Vincent <rabin@rab.in>
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: linux-omap at vger.kernel.org
> Cc: linux-samsung-soc at vger.kernel.org
> Cc: bcm-kernel-feedback-list at broadcom.com
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> ARM SoC folks and Lee: it would be great if you could
> ACK the few lines hitting arch/arm/* and drivers/mfd/* in this
> so I can take it through the GPIO tree.
> ---
<snip>
> drivers/gpio/gpio-ep93xx.c | 25 +--
<snip>
> diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c
> index 3e3947b35c83..ad279078fed7 100644
> --- a/drivers/gpio/gpio-ep93xx.c
> +++ b/drivers/gpio/gpio-ep93xx.c
> @@ -16,10 +16,11 @@
> #include <linux/module.h>
> #include <linux/platform_device.h>
> #include <linux/io.h>
> -#include <linux/gpio.h>
> #include <linux/irq.h>
> #include <linux/slab.h>
> -#include <linux/basic_mmio_gpio.h>
> +#include <linux/gpio/driver.h>
> +/* FIXME: this is here for gpio_to_irq() - get rid of this! */
> +#include <linux/gpio.h>
>
> #include <mach/hardware.h>
> #include <mach/gpio-ep93xx.h>
> @@ -28,7 +29,7 @@
>
> struct ep93xx_gpio {
> void __iomem *mmio_base;
> - struct bgpio_chip bgc[8];
> + struct gpio_chip gc[8];
> };
>
> /*************************************************************************
> @@ -319,26 +320,26 @@ static int ep93xx_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
> return 64 + gpio;
> }
>
> -static int ep93xx_gpio_add_bank(struct bgpio_chip *bgc, struct device *dev,
> +static int ep93xx_gpio_add_bank(struct gpio_chip *gc, struct device *dev,
> void __iomem *mmio_base, struct ep93xx_gpio_bank *bank)
> {
> void __iomem *data = mmio_base + bank->data;
> void __iomem *dir = mmio_base + bank->dir;
> int err;
>
> - err = bgpio_init(bgc, dev, 1, data, NULL, NULL, dir, NULL, 0);
> + err = bgpio_init(gc, dev, 1, data, NULL, NULL, dir, NULL, 0);
> if (err)
> return err;
>
> - bgc->gc.label = bank->label;
> - bgc->gc.base = bank->base;
> + gc->label = bank->label;
> + gc->base = bank->base;
>
> if (bank->has_debounce) {
> - bgc->gc.set_debounce = ep93xx_gpio_set_debounce;
> - bgc->gc.to_irq = ep93xx_gpio_to_irq;
> + gc->set_debounce = ep93xx_gpio_set_debounce;
> + gc->to_irq = ep93xx_gpio_to_irq;
> }
>
> - return gpiochip_add(&bgc->gc);
> + return gpiochip_add_data(gc, NULL);
> }
>
> static int ep93xx_gpio_probe(struct platform_device *pdev)
> @@ -358,10 +359,10 @@ static int ep93xx_gpio_probe(struct platform_device *pdev)
> return PTR_ERR(ep93xx_gpio->mmio_base);
>
> for (i = 0; i < ARRAY_SIZE(ep93xx_gpio_banks); i++) {
> - struct bgpio_chip *bgc = &ep93xx_gpio->bgc[i];
> + struct gpio_chip *gc = &ep93xx_gpio->gc[i];
> struct ep93xx_gpio_bank *bank = &ep93xx_gpio_banks[i];
>
> - if (ep93xx_gpio_add_bank(bgc, &pdev->dev,
> + if (ep93xx_gpio_add_bank(gc, &pdev->dev,
> ep93xx_gpio->mmio_base, bank))
> dev_warn(&pdev->dev, "Unable to add gpio bank %s\n",
> bank->label);
For the drivers/gpio/gpio-ep93xx.c part:
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 004/182] gpio: generic: factor into gpio_chip struct
2015-12-09 13:12 ` Linus Walleij
@ 2015-12-09 19:49 ` Tony Lindgren
-1 siblings, 0 replies; 18+ messages in thread
From: Tony Lindgren @ 2015-12-09 19:49 UTC (permalink / raw)
To: Linus Walleij
Cc: linux-gpio, Johan Hovold, Alexandre Courbot, Michael Welling,
Markus Pargmann, Anton Vorontsov, arm, Lee Jones,
Alexander Shiyan, Shawn Guo, Sascha Hauer, Kukjin Kim,
Krzysztof Kozlowski, Alexandre Courbot, Gregory Fong,
Brian Norris, Florian Fainelli, Liviu Dudau, Sudeep Holla,
Lorenzo Pieralisi, Nicolas Pitre, Olof Johansson,
Vladimir Zapolskiy, Rabin Vincent
* Linus Walleij <linus.walleij@linaro.org> [151209 05:14]:
> The separate struct bgpio_chip has been a pain to handle, both
> by being confusingly similar in name to struct gpio_chip and
> for being contained inside a struct so that struct gpio_chip
> is contained in a struct contained in a struct, making several
> steps of dereferencing necessary.
>
> Make things simpler: include the fields directly into
> <linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
> get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
> some of the member variables with bgpio_* and add proper
> kerneldoc while we're at it.
>
> Modify all users to handle the change and use a struct
> gpio_chip directly. And while we're at it: replace all
> container_of() dereferencing by gpiochip_get_data() and
> registering the gpio_chip with gpiochip_add_data().
...
> ---
> ARM SoC folks and Lee: it would be great if you could
> ACK the few lines hitting arch/arm/* and drivers/mfd/* in this
> so I can take it through the GPIO tree.
For omap:
Acked-by: Tony Lindgren <tony@atomide.com>
^ permalink raw reply [flat|nested] 18+ messages in thread
* [PATCH 004/182] gpio: generic: factor into gpio_chip struct
@ 2015-12-09 19:49 ` Tony Lindgren
0 siblings, 0 replies; 18+ messages in thread
From: Tony Lindgren @ 2015-12-09 19:49 UTC (permalink / raw)
To: linux-arm-kernel
* Linus Walleij <linus.walleij@linaro.org> [151209 05:14]:
> The separate struct bgpio_chip has been a pain to handle, both
> by being confusingly similar in name to struct gpio_chip and
> for being contained inside a struct so that struct gpio_chip
> is contained in a struct contained in a struct, making several
> steps of dereferencing necessary.
>
> Make things simpler: include the fields directly into
> <linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
> get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
> some of the member variables with bgpio_* and add proper
> kerneldoc while we're at it.
>
> Modify all users to handle the change and use a struct
> gpio_chip directly. And while we're at it: replace all
> container_of() dereferencing by gpiochip_get_data() and
> registering the gpio_chip with gpiochip_add_data().
...
> ---
> ARM SoC folks and Lee: it would be great if you could
> ACK the few lines hitting arch/arm/* and drivers/mfd/* in this
> so I can take it through the GPIO tree.
For omap:
Acked-by: Tony Lindgren <tony@atomide.com>
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 004/182] gpio: generic: factor into gpio_chip struct
2015-12-09 13:12 ` Linus Walleij
@ 2015-12-09 23:08 ` Michael Welling
-1 siblings, 0 replies; 18+ messages in thread
From: Michael Welling @ 2015-12-09 23:08 UTC (permalink / raw)
To: Linus Walleij
Cc: linux-gpio, Johan Hovold, Alexandre Courbot, Markus Pargmann,
Anton Vorontsov, arm, Lee Jones, Alexander Shiyan, Shawn Guo,
Sascha Hauer, Tony Lindgren, Kukjin Kim, Krzysztof Kozlowski,
Alexandre Courbot, Gregory Fong, Brian Norris, Florian Fainelli,
Liviu Dudau, Sudeep Holla, Lorenzo Pieralisi, Nicolas Pitre,
Olof Johansson, Vladimir Zapolskiy, Rabin Vincent
On Wed, Dec 09, 2015 at 02:12:40PM +0100, Linus Walleij wrote:
...
> @@ -55,16 +54,16 @@ static int moxart_gpio_probe(struct platform_device *pdev)
> return ret;
> }
>
> - bgc->gc.label = "moxart-gpio";
> - bgc->gc.request = gpiochip_generic_request;
> - bgc->gc.free = gpiochip_generic_free;
> - bgc->data = bgc->read_reg(bgc->reg_set);
> - bgc->gc.base = 0;
> - bgc->gc.ngpio = 32;
> - bgc->gc.parent = dev;
> - bgc->gc.owner = THIS_MODULE;
> + gc->label = "moxart-gpio";
> + gc->request = gpiochip_generic_request;
> + gc->free = gpiochip_generic_free;
> + gc->bgpio_data = bgc->read_reg(bgc->reg_set);
> + gc->base = 0;
> + gc->ngpio = 32;
> + gc->parent = dev;
> + gc->owner = THIS_MODULE;
>
> - ret = gpiochip_add(&bgc->gc);
> + ret = gpiochip_add_data(gc, NULL);
> if (ret) {
gpiochip_add is still mentioned in the dev_err below.
> dev_err(dev, "%s: gpiochip_add failed\n",
> dev->of_node->full_name);
...
> @@ -226,14 +225,14 @@ static int sdv_gpio_probe(struct pci_dev *pdev,
> writel(mux_val, sd->gpio_pub_base + GPMUXCTL);
> }
>
> - ret = bgpio_init(&sd->bgpio, &pdev->dev, 4,
> + ret = bgpio_init(&sd->chip, &pdev->dev, 4,
> sd->gpio_pub_base + GPINR, sd->gpio_pub_base + GPOUTR,
> NULL, sd->gpio_pub_base + GPOER, NULL, 0);
> if (ret)
> goto unmap;
> - sd->bgpio.gc.ngpio = SDV_NUM_PUB_GPIOS;
> + sd->chip.ngpio = SDV_NUM_PUB_GPIOS;
>
> - ret = gpiochip_add(&sd->bgpio.gc);
> + ret = gpiochip_add_data(&sd->chip, sd);
> if (ret < 0) {
Also still mentioned here in the dev_err.
> dev_err(&pdev->dev, "gpiochip_add() failed.\n");
> goto unmap;
...
> @@ -201,8 +201,8 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
> return -ENOMEM;
> bgpio_init(mmc_gpio_chip, &pdev->dev, 0x4, base + SYS_MCI,
> NULL, NULL, NULL, NULL, 0);
Was going to complain about this one not switching to _data but it was
addressed in a follow up patch.
> - mmc_gpio_chip->gc.ngpio = 2;
> - gpiochip_add(&mmc_gpio_chip->gc);
> + mmc_gpio_chip->ngpio = 2;
> + gpiochip_add(mmc_gpio_chip);
^ permalink raw reply [flat|nested] 18+ messages in thread
* [PATCH 004/182] gpio: generic: factor into gpio_chip struct
@ 2015-12-09 23:08 ` Michael Welling
0 siblings, 0 replies; 18+ messages in thread
From: Michael Welling @ 2015-12-09 23:08 UTC (permalink / raw)
To: linux-arm-kernel
On Wed, Dec 09, 2015 at 02:12:40PM +0100, Linus Walleij wrote:
...
> @@ -55,16 +54,16 @@ static int moxart_gpio_probe(struct platform_device *pdev)
> return ret;
> }
>
> - bgc->gc.label = "moxart-gpio";
> - bgc->gc.request = gpiochip_generic_request;
> - bgc->gc.free = gpiochip_generic_free;
> - bgc->data = bgc->read_reg(bgc->reg_set);
> - bgc->gc.base = 0;
> - bgc->gc.ngpio = 32;
> - bgc->gc.parent = dev;
> - bgc->gc.owner = THIS_MODULE;
> + gc->label = "moxart-gpio";
> + gc->request = gpiochip_generic_request;
> + gc->free = gpiochip_generic_free;
> + gc->bgpio_data = bgc->read_reg(bgc->reg_set);
> + gc->base = 0;
> + gc->ngpio = 32;
> + gc->parent = dev;
> + gc->owner = THIS_MODULE;
>
> - ret = gpiochip_add(&bgc->gc);
> + ret = gpiochip_add_data(gc, NULL);
> if (ret) {
gpiochip_add is still mentioned in the dev_err below.
> dev_err(dev, "%s: gpiochip_add failed\n",
> dev->of_node->full_name);
...
> @@ -226,14 +225,14 @@ static int sdv_gpio_probe(struct pci_dev *pdev,
> writel(mux_val, sd->gpio_pub_base + GPMUXCTL);
> }
>
> - ret = bgpio_init(&sd->bgpio, &pdev->dev, 4,
> + ret = bgpio_init(&sd->chip, &pdev->dev, 4,
> sd->gpio_pub_base + GPINR, sd->gpio_pub_base + GPOUTR,
> NULL, sd->gpio_pub_base + GPOER, NULL, 0);
> if (ret)
> goto unmap;
> - sd->bgpio.gc.ngpio = SDV_NUM_PUB_GPIOS;
> + sd->chip.ngpio = SDV_NUM_PUB_GPIOS;
>
> - ret = gpiochip_add(&sd->bgpio.gc);
> + ret = gpiochip_add_data(&sd->chip, sd);
> if (ret < 0) {
Also still mentioned here in the dev_err.
> dev_err(&pdev->dev, "gpiochip_add() failed.\n");
> goto unmap;
...
> @@ -201,8 +201,8 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
> return -ENOMEM;
> bgpio_init(mmc_gpio_chip, &pdev->dev, 0x4, base + SYS_MCI,
> NULL, NULL, NULL, NULL, 0);
Was going to complain about this one not switching to _data but it was
addressed in a follow up patch.
> - mmc_gpio_chip->gc.ngpio = 2;
> - gpiochip_add(&mmc_gpio_chip->gc);
> + mmc_gpio_chip->ngpio = 2;
> + gpiochip_add(mmc_gpio_chip);
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 004/182] gpio: generic: factor into gpio_chip struct
2015-12-09 13:12 ` Linus Walleij
@ 2015-12-10 2:19 ` Krzysztof Kozlowski
-1 siblings, 0 replies; 18+ messages in thread
From: Krzysztof Kozlowski @ 2015-12-10 2:19 UTC (permalink / raw)
To: Linus Walleij, linux-gpio, Johan Hovold, Alexandre Courbot,
Michael Welling, Markus Pargmann, Anton Vorontsov
Cc: arm, Lee Jones, Alexander Shiyan, Shawn Guo, Sascha Hauer,
Tony Lindgren, Kukjin Kim, Alexandre Courbot, Gregory Fong,
Brian Norris, Florian Fainelli, Liviu Dudau, Sudeep Holla,
Lorenzo Pieralisi, Nicolas Pitre, Olof Johansson,
Vladimir Zapolskiy, Rabin Vincent, linux-arm-kernel, linux-omap,
linux-samsung-soc, bcm-kernel-feedback-list
On 09.12.2015 22:12, Linus Walleij wrote:
> The separate struct bgpio_chip has been a pain to handle, both
> by being confusingly similar in name to struct gpio_chip and
> for being contained inside a struct so that struct gpio_chip
> is contained in a struct contained in a struct, making several
> steps of dereferencing necessary.
>
> Make things simpler: include the fields directly into
> <linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
> get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
> some of the member variables with bgpio_* and add proper
> kerneldoc while we're at it.
>
> Modify all users to handle the change and use a struct
> gpio_chip directly. And while we're at it: replace all
> container_of() dereferencing by gpiochip_get_data() and
> registering the gpio_chip with gpiochip_add_data().
>
> Cc: arm@kernel.org
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Alexander Shiyan <shc_work@mail.ru>
> Cc: Shawn Guo <shawnguo@kernel.org>
> Cc: Sascha Hauer <kernel@pengutronix.de>
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: Kukjin Kim <kgene@kernel.org>
> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> Cc: Alexandre Courbot <gnurou@gmail.com>
> Cc: Gregory Fong <gregory.0xf0@gmail.com>
> Cc: Brian Norris <computersforpeace@gmail.com>
> Cc: Florian Fainelli <f.fainelli@gmail.com>
> Cc: Liviu Dudau <liviu.dudau@arm.com>
> Cc: Sudeep Holla <sudeep.holla@arm.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
> Cc: Olof Johansson <olof@lixom.net>
> Cc: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
> Cc: Rabin Vincent <rabin@rab.in>
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-omap@vger.kernel.org
> Cc: linux-samsung-soc@vger.kernel.org
> Cc: bcm-kernel-feedback-list@broadcom.com
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> ARM SoC folks and Lee: it would be great if you could
> ACK the few lines hitting arch/arm/* and drivers/mfd/* in this
> so I can take it through the GPIO tree.
> ---
> arch/arm/mach-clps711x/board-autcpu12.c | 2 +-
> arch/arm/mach-clps711x/board-p720t.c | 2 +-
> arch/arm/mach-imx/mach-mx21ads.c | 2 +-
> arch/arm/mach-omap1/board-ams-delta.c | 2 +-
> arch/arm/mach-s3c64xx/mach-crag6410.c | 2 +-
For s3c64xx:
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 18+ messages in thread
* [PATCH 004/182] gpio: generic: factor into gpio_chip struct
@ 2015-12-10 2:19 ` Krzysztof Kozlowski
0 siblings, 0 replies; 18+ messages in thread
From: Krzysztof Kozlowski @ 2015-12-10 2:19 UTC (permalink / raw)
To: linux-arm-kernel
On 09.12.2015 22:12, Linus Walleij wrote:
> The separate struct bgpio_chip has been a pain to handle, both
> by being confusingly similar in name to struct gpio_chip and
> for being contained inside a struct so that struct gpio_chip
> is contained in a struct contained in a struct, making several
> steps of dereferencing necessary.
>
> Make things simpler: include the fields directly into
> <linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
> get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
> some of the member variables with bgpio_* and add proper
> kerneldoc while we're at it.
>
> Modify all users to handle the change and use a struct
> gpio_chip directly. And while we're at it: replace all
> container_of() dereferencing by gpiochip_get_data() and
> registering the gpio_chip with gpiochip_add_data().
>
> Cc: arm at kernel.org
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Alexander Shiyan <shc_work@mail.ru>
> Cc: Shawn Guo <shawnguo@kernel.org>
> Cc: Sascha Hauer <kernel@pengutronix.de>
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: Kukjin Kim <kgene@kernel.org>
> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> Cc: Alexandre Courbot <gnurou@gmail.com>
> Cc: Gregory Fong <gregory.0xf0@gmail.com>
> Cc: Brian Norris <computersforpeace@gmail.com>
> Cc: Florian Fainelli <f.fainelli@gmail.com>
> Cc: Liviu Dudau <liviu.dudau@arm.com>
> Cc: Sudeep Holla <sudeep.holla@arm.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
> Cc: Olof Johansson <olof@lixom.net>
> Cc: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
> Cc: Rabin Vincent <rabin@rab.in>
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: linux-omap at vger.kernel.org
> Cc: linux-samsung-soc at vger.kernel.org
> Cc: bcm-kernel-feedback-list at broadcom.com
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> ARM SoC folks and Lee: it would be great if you could
> ACK the few lines hitting arch/arm/* and drivers/mfd/* in this
> so I can take it through the GPIO tree.
> ---
> arch/arm/mach-clps711x/board-autcpu12.c | 2 +-
> arch/arm/mach-clps711x/board-p720t.c | 2 +-
> arch/arm/mach-imx/mach-mx21ads.c | 2 +-
> arch/arm/mach-omap1/board-ams-delta.c | 2 +-
> arch/arm/mach-s3c64xx/mach-crag6410.c | 2 +-
For s3c64xx:
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 004/182] gpio: generic: factor into gpio_chip struct
2015-12-09 13:12 ` Linus Walleij
@ 2015-12-10 8:06 ` Lee Jones
-1 siblings, 0 replies; 18+ messages in thread
From: Lee Jones @ 2015-12-10 8:06 UTC (permalink / raw)
To: Linus Walleij
Cc: linux-gpio, Johan Hovold, Alexandre Courbot, Michael Welling,
Markus Pargmann, Anton Vorontsov, arm, Alexander Shiyan,
Shawn Guo, Sascha Hauer, Tony Lindgren, Kukjin Kim,
Krzysztof Kozlowski, Alexandre Courbot, Gregory Fong,
Brian Norris, Florian Fainelli, Liviu Dudau, Sudeep Holla,
Lorenzo Pieralisi, Nicolas Pitre, Olof Johansson,
Vladimir Zapolskiy, Rabin Vincent
On Wed, 09 Dec 2015, Linus Walleij wrote:
> The separate struct bgpio_chip has been a pain to handle, both
> by being confusingly similar in name to struct gpio_chip and
> for being contained inside a struct so that struct gpio_chip
> is contained in a struct contained in a struct, making several
> steps of dereferencing necessary.
>
> Make things simpler: include the fields directly into
> <linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
> get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
> some of the member variables with bgpio_* and add proper
> kerneldoc while we're at it.
>
> Modify all users to handle the change and use a struct
> gpio_chip directly. And while we're at it: replace all
> container_of() dereferencing by gpiochip_get_data() and
> registering the gpio_chip with gpiochip_add_data().
>
> Cc: arm@kernel.org
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Alexander Shiyan <shc_work@mail.ru>
> Cc: Shawn Guo <shawnguo@kernel.org>
> Cc: Sascha Hauer <kernel@pengutronix.de>
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: Kukjin Kim <kgene@kernel.org>
> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> Cc: Alexandre Courbot <gnurou@gmail.com>
> Cc: Gregory Fong <gregory.0xf0@gmail.com>
> Cc: Brian Norris <computersforpeace@gmail.com>
> Cc: Florian Fainelli <f.fainelli@gmail.com>
> Cc: Liviu Dudau <liviu.dudau@arm.com>
> Cc: Sudeep Holla <sudeep.holla@arm.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
> Cc: Olof Johansson <olof@lixom.net>
> Cc: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
> Cc: Rabin Vincent <rabin@rab.in>
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-omap@vger.kernel.org
> Cc: linux-samsung-soc@vger.kernel.org
> Cc: bcm-kernel-feedback-list@broadcom.com
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> ARM SoC folks and Lee: it would be great if you could
> ACK the few lines hitting arch/arm/* and drivers/mfd/* in this
> so I can take it through the GPIO tree.
> ---
> arch/arm/mach-clps711x/board-autcpu12.c | 2 +-
> arch/arm/mach-clps711x/board-p720t.c | 2 +-
> arch/arm/mach-imx/mach-mx21ads.c | 2 +-
> arch/arm/mach-omap1/board-ams-delta.c | 2 +-
> arch/arm/mach-s3c64xx/mach-crag6410.c | 2 +-
> drivers/gpio/gpio-74xx-mmio.c | 37 ++--
> drivers/gpio/gpio-brcmstb.c | 80 ++++-----
> drivers/gpio/gpio-clps711x.c | 28 +--
> drivers/gpio/gpio-dwapb.c | 92 +++++-----
> drivers/gpio/gpio-ep93xx.c | 25 +--
> drivers/gpio/gpio-etraxfs.c | 49 +++---
> drivers/gpio/gpio-ge.c | 24 +--
> drivers/gpio/gpio-generic.c | 292 +++++++++++++++-----------------
> drivers/gpio/gpio-grgpio.c | 73 ++++----
> drivers/gpio/gpio-moxart.c | 29 ++--
> drivers/gpio/gpio-mxc.c | 27 ++-
> drivers/gpio/gpio-mxs.c | 33 ++--
> drivers/gpio/gpio-sodaville.c | 13 +-
> drivers/gpio/gpio-xgene-sb.c | 40 ++---
> drivers/mfd/vexpress-sysreg.c | 8 +-
Acked-by: Lee Jones <lee.jones@linaro.org>
> include/linux/basic_mmio_gpio.h | 80 ---------
> include/linux/gpio/driver.h | 54 ++++++
> 22 files changed, 442 insertions(+), 552 deletions(-)
> delete mode 100644 include/linux/basic_mmio_gpio.h
[...]
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 18+ messages in thread
* [PATCH 004/182] gpio: generic: factor into gpio_chip struct
@ 2015-12-10 8:06 ` Lee Jones
0 siblings, 0 replies; 18+ messages in thread
From: Lee Jones @ 2015-12-10 8:06 UTC (permalink / raw)
To: linux-arm-kernel
On Wed, 09 Dec 2015, Linus Walleij wrote:
> The separate struct bgpio_chip has been a pain to handle, both
> by being confusingly similar in name to struct gpio_chip and
> for being contained inside a struct so that struct gpio_chip
> is contained in a struct contained in a struct, making several
> steps of dereferencing necessary.
>
> Make things simpler: include the fields directly into
> <linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
> get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
> some of the member variables with bgpio_* and add proper
> kerneldoc while we're at it.
>
> Modify all users to handle the change and use a struct
> gpio_chip directly. And while we're at it: replace all
> container_of() dereferencing by gpiochip_get_data() and
> registering the gpio_chip with gpiochip_add_data().
>
> Cc: arm at kernel.org
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Alexander Shiyan <shc_work@mail.ru>
> Cc: Shawn Guo <shawnguo@kernel.org>
> Cc: Sascha Hauer <kernel@pengutronix.de>
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: Kukjin Kim <kgene@kernel.org>
> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> Cc: Alexandre Courbot <gnurou@gmail.com>
> Cc: Gregory Fong <gregory.0xf0@gmail.com>
> Cc: Brian Norris <computersforpeace@gmail.com>
> Cc: Florian Fainelli <f.fainelli@gmail.com>
> Cc: Liviu Dudau <liviu.dudau@arm.com>
> Cc: Sudeep Holla <sudeep.holla@arm.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
> Cc: Olof Johansson <olof@lixom.net>
> Cc: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
> Cc: Rabin Vincent <rabin@rab.in>
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: linux-omap at vger.kernel.org
> Cc: linux-samsung-soc at vger.kernel.org
> Cc: bcm-kernel-feedback-list at broadcom.com
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> ARM SoC folks and Lee: it would be great if you could
> ACK the few lines hitting arch/arm/* and drivers/mfd/* in this
> so I can take it through the GPIO tree.
> ---
> arch/arm/mach-clps711x/board-autcpu12.c | 2 +-
> arch/arm/mach-clps711x/board-p720t.c | 2 +-
> arch/arm/mach-imx/mach-mx21ads.c | 2 +-
> arch/arm/mach-omap1/board-ams-delta.c | 2 +-
> arch/arm/mach-s3c64xx/mach-crag6410.c | 2 +-
> drivers/gpio/gpio-74xx-mmio.c | 37 ++--
> drivers/gpio/gpio-brcmstb.c | 80 ++++-----
> drivers/gpio/gpio-clps711x.c | 28 +--
> drivers/gpio/gpio-dwapb.c | 92 +++++-----
> drivers/gpio/gpio-ep93xx.c | 25 +--
> drivers/gpio/gpio-etraxfs.c | 49 +++---
> drivers/gpio/gpio-ge.c | 24 +--
> drivers/gpio/gpio-generic.c | 292 +++++++++++++++-----------------
> drivers/gpio/gpio-grgpio.c | 73 ++++----
> drivers/gpio/gpio-moxart.c | 29 ++--
> drivers/gpio/gpio-mxc.c | 27 ++-
> drivers/gpio/gpio-mxs.c | 33 ++--
> drivers/gpio/gpio-sodaville.c | 13 +-
> drivers/gpio/gpio-xgene-sb.c | 40 ++---
> drivers/mfd/vexpress-sysreg.c | 8 +-
Acked-by: Lee Jones <lee.jones@linaro.org>
> include/linux/basic_mmio_gpio.h | 80 ---------
> include/linux/gpio/driver.h | 54 ++++++
> 22 files changed, 442 insertions(+), 552 deletions(-)
> delete mode 100644 include/linux/basic_mmio_gpio.h
[...]
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org ? Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 004/182] gpio: generic: factor into gpio_chip struct
2015-12-09 23:08 ` Michael Welling
@ 2015-12-13 20:15 ` Linus Walleij
-1 siblings, 0 replies; 18+ messages in thread
From: Linus Walleij @ 2015-12-13 20:15 UTC (permalink / raw)
To: Michael Welling
Cc: linux-gpio, Johan Hovold, Alexandre Courbot, Markus Pargmann,
Anton Vorontsov, arm, Lee Jones, Alexander Shiyan, Shawn Guo,
Sascha Hauer, Tony Lindgren, Kukjin Kim, Krzysztof Kozlowski,
Alexandre Courbot, Gregory Fong, Brian Norris, Florian Fainelli,
Liviu Dudau, Sudeep Holla, Lorenzo Pieralisi, Nicolas Pitre,
Olof Johansson, Vladimir Zapolskiy
On Thu, Dec 10, 2015 at 12:08 AM, Michael Welling <mwelling@ieee.org> wrote:
> On Wed, Dec 09, 2015 at 02:12:40PM +0100, Linus Walleij wrote:
> ...
>> - ret = gpiochip_add(&bgc->gc);
>> + ret = gpiochip_add_data(gc, NULL);
>> if (ret) {
>
> gpiochip_add is still mentioned in the dev_err below.
I explicitly left text string updates aside, I am anyways going to have to go
over all drivers for a second refactoring with gpiodev_alloc() etc.
Yours,
Linus Walleij
^ permalink raw reply [flat|nested] 18+ messages in thread
* [PATCH 004/182] gpio: generic: factor into gpio_chip struct
@ 2015-12-13 20:15 ` Linus Walleij
0 siblings, 0 replies; 18+ messages in thread
From: Linus Walleij @ 2015-12-13 20:15 UTC (permalink / raw)
To: linux-arm-kernel
On Thu, Dec 10, 2015 at 12:08 AM, Michael Welling <mwelling@ieee.org> wrote:
> On Wed, Dec 09, 2015 at 02:12:40PM +0100, Linus Walleij wrote:
> ...
>> - ret = gpiochip_add(&bgc->gc);
>> + ret = gpiochip_add_data(gc, NULL);
>> if (ret) {
>
> gpiochip_add is still mentioned in the dev_err below.
I explicitly left text string updates aside, I am anyways going to have to go
over all drivers for a second refactoring with gpiodev_alloc() etc.
Yours,
Linus Walleij
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 004/182] gpio: generic: factor into gpio_chip struct
2015-12-09 13:12 ` Linus Walleij
@ 2015-12-14 2:35 ` Gregory Fong
-1 siblings, 0 replies; 18+ messages in thread
From: Gregory Fong @ 2015-12-14 2:35 UTC (permalink / raw)
To: Linus Walleij
Cc: linux-gpio, Johan Hovold, Alexandre Courbot, Michael Welling,
Markus Pargmann, Anton Vorontsov, arm, Lee Jones,
Alexander Shiyan, Shawn Guo, Sascha Hauer, Tony Lindgren,
Kukjin Kim, Krzysztof Kozlowski, Alexandre Courbot, Brian Norris,
Florian Fainelli, Liviu Dudau, Sudeep Holla, Lorenzo Pieralisi,
Nicolas Pitre, Olof Johansson, Vladimir Zapolskiy, Rabin Vincent
On Wed, Dec 9, 2015 at 5:12 AM, Linus Walleij <linus.walleij@linaro.org> wrote:
> The separate struct bgpio_chip has been a pain to handle, both
> by being confusingly similar in name to struct gpio_chip and
> for being contained inside a struct so that struct gpio_chip
> is contained in a struct contained in a struct, making several
> steps of dereferencing necessary.
>
> Make things simpler: include the fields directly into
> <linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
> get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
> some of the member variables with bgpio_* and add proper
> kerneldoc while we're at it.
>
> Modify all users to handle the change and use a struct
> gpio_chip directly. And while we're at it: replace all
> container_of() dereferencing by gpiochip_get_data() and
> registering the gpio_chip with gpiochip_add_data().
>
> Cc: arm@kernel.org
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Alexander Shiyan <shc_work@mail.ru>
> Cc: Shawn Guo <shawnguo@kernel.org>
> Cc: Sascha Hauer <kernel@pengutronix.de>
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: Kukjin Kim <kgene@kernel.org>
> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> Cc: Alexandre Courbot <gnurou@gmail.com>
> Cc: Gregory Fong <gregory.0xf0@gmail.com>
> Cc: Brian Norris <computersforpeace@gmail.com>
> Cc: Florian Fainelli <f.fainelli@gmail.com>
> Cc: Liviu Dudau <liviu.dudau@arm.com>
> Cc: Sudeep Holla <sudeep.holla@arm.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
> Cc: Olof Johansson <olof@lixom.net>
> Cc: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
> Cc: Rabin Vincent <rabin@rab.in>
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-omap@vger.kernel.org
> Cc: linux-samsung-soc@vger.kernel.org
> Cc: bcm-kernel-feedback-list@broadcom.com
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> ARM SoC folks and Lee: it would be great if you could
> ACK the few lines hitting arch/arm/* and drivers/mfd/* in this
> so I can take it through the GPIO tree.
> ---
[...]
> drivers/gpio/gpio-brcmstb.c | 80 ++++-----
For brcmstb:
Acked-by: Gregory Fong <gregory.0xf0@gmail.com>
^ permalink raw reply [flat|nested] 18+ messages in thread
* [PATCH 004/182] gpio: generic: factor into gpio_chip struct
@ 2015-12-14 2:35 ` Gregory Fong
0 siblings, 0 replies; 18+ messages in thread
From: Gregory Fong @ 2015-12-14 2:35 UTC (permalink / raw)
To: linux-arm-kernel
On Wed, Dec 9, 2015 at 5:12 AM, Linus Walleij <linus.walleij@linaro.org> wrote:
> The separate struct bgpio_chip has been a pain to handle, both
> by being confusingly similar in name to struct gpio_chip and
> for being contained inside a struct so that struct gpio_chip
> is contained in a struct contained in a struct, making several
> steps of dereferencing necessary.
>
> Make things simpler: include the fields directly into
> <linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
> get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
> some of the member variables with bgpio_* and add proper
> kerneldoc while we're at it.
>
> Modify all users to handle the change and use a struct
> gpio_chip directly. And while we're at it: replace all
> container_of() dereferencing by gpiochip_get_data() and
> registering the gpio_chip with gpiochip_add_data().
>
> Cc: arm at kernel.org
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Alexander Shiyan <shc_work@mail.ru>
> Cc: Shawn Guo <shawnguo@kernel.org>
> Cc: Sascha Hauer <kernel@pengutronix.de>
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: Kukjin Kim <kgene@kernel.org>
> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> Cc: Alexandre Courbot <gnurou@gmail.com>
> Cc: Gregory Fong <gregory.0xf0@gmail.com>
> Cc: Brian Norris <computersforpeace@gmail.com>
> Cc: Florian Fainelli <f.fainelli@gmail.com>
> Cc: Liviu Dudau <liviu.dudau@arm.com>
> Cc: Sudeep Holla <sudeep.holla@arm.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
> Cc: Olof Johansson <olof@lixom.net>
> Cc: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
> Cc: Rabin Vincent <rabin@rab.in>
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: linux-omap at vger.kernel.org
> Cc: linux-samsung-soc at vger.kernel.org
> Cc: bcm-kernel-feedback-list at broadcom.com
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> ARM SoC folks and Lee: it would be great if you could
> ACK the few lines hitting arch/arm/* and drivers/mfd/* in this
> so I can take it through the GPIO tree.
> ---
[...]
> drivers/gpio/gpio-brcmstb.c | 80 ++++-----
For brcmstb:
Acked-by: Gregory Fong <gregory.0xf0@gmail.com>
^ permalink raw reply [flat|nested] 18+ messages in thread
end of thread, other threads:[~2015-12-14 2:35 UTC | newest]
Thread overview: 18+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-12-09 13:12 [PATCH 004/182] gpio: generic: factor into gpio_chip struct Linus Walleij
2015-12-09 13:12 ` Linus Walleij
2015-12-09 15:45 ` Liviu Dudau
2015-12-09 15:45 ` Liviu Dudau
2015-12-09 18:10 ` Hartley Sweeten
2015-12-09 18:10 ` Hartley Sweeten
2015-12-09 19:49 ` Tony Lindgren
2015-12-09 19:49 ` Tony Lindgren
2015-12-09 23:08 ` Michael Welling
2015-12-09 23:08 ` Michael Welling
2015-12-13 20:15 ` Linus Walleij
2015-12-13 20:15 ` Linus Walleij
2015-12-10 2:19 ` Krzysztof Kozlowski
2015-12-10 2:19 ` Krzysztof Kozlowski
2015-12-10 8:06 ` Lee Jones
2015-12-10 8:06 ` Lee Jones
2015-12-14 2:35 ` Gregory Fong
2015-12-14 2:35 ` Gregory Fong
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