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authorArnd Bergmann <arnd@arndb.de>2013-06-20 03:51:18 +0400
committerArnd Bergmann <arnd@arndb.de>2013-06-20 03:51:18 +0400
commitc3b693d1d63444afe4fbf809d8a311b63741e503 (patch)
tree5c0c264203967f1524ac28645f0b5cea57b624bc /drivers/pinctrl/pinctrl-coh901.c
parent596fd95ea606548adaa8310a7c05a6dcfec46f16 (diff)
parent7fca1f20c0f3e9d7a3b23ee1fc9e832f520f3f1a (diff)
downloadlinux-c3b693d1d63444afe4fbf809d8a311b63741e503.tar.xz
Merge tag 'u300-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/soc
From Linus Walleij: Device Tree and Multiplatform support for U300: - Add devicetree support to timer, pinctrl (probe), I2C block, watchdog, DMA controller and clocks. - Piecewise add a device tree containing all peripherals. - Delete the ATAG boot path. - Delete redundant platform data and board files. - Convert to multiplatform. * tag 'u300-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson: (40 commits) ARM: u300: switch to using syscon regmap for board ARM: u300: Update MMC configs for u300 defconfig spi: pl022: use DMA by default when probing from DT pinctrl: get rid of all platform data for coh901 ARM: u300: convert MMC/SD clock to device tree ARM: u300: move the gated system controller clocks to DT i2c: stu300: do not request a specific clock name clk: move the U300 fixed and fixed-factor to DT ARM: u300: remove register definition file ARM: u300: add syscon node ARM: u300 use module_spi_driver to register driver ARM: u300: delete remnant machine headers ARM: u300: convert to multiplatform ARM: u300: localize <mach/u300-regs.h> ARM: u300: delete <mach/irqs.h> ARM: u300: delete <mach/hardware.h> ARM: u300: push down syscon registers ARM: u300: remove deps from debug macro ARM: u300: move debugmacro to debug includes ARM: u300: delete all static board data ... Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/pinctrl/pinctrl-coh901.c')
-rw-r--r--drivers/pinctrl/pinctrl-coh901.c35
1 files changed, 19 insertions, 16 deletions
diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c
index d6b41747d687..eeff7f7fc920 100644
--- a/drivers/pinctrl/pinctrl-coh901.c
+++ b/drivers/pinctrl/pinctrl-coh901.c
@@ -22,7 +22,6 @@
#include <linux/slab.h>
#include <linux/pinctrl/consumer.h>
#include <linux/pinctrl/pinconf-generic.h>
-#include <linux/platform_data/pinctrl-coh901.h>
#include "pinctrl-coh901.h"
#define U300_GPIO_PORT_STRIDE (0x30)
@@ -58,8 +57,9 @@
#define U300_GPIO_PXICR_IRQ_CONFIG_RISING_EDGE (0x00000001UL)
/* 8 bits per port, no version has more than 7 ports */
+#define U300_GPIO_NUM_PORTS 7
#define U300_GPIO_PINS_PER_PORT 8
-#define U300_GPIO_MAX (U300_GPIO_PINS_PER_PORT * 7)
+#define U300_GPIO_MAX (U300_GPIO_PINS_PER_PORT * U300_GPIO_NUM_PORTS)
struct u300_gpio {
struct gpio_chip chip;
@@ -111,9 +111,6 @@ struct u300_gpio_confdata {
int outval;
};
-/* BS335 has seven ports of 8 bits each = GPIO pins 0..55 */
-#define BS335_GPIO_NUM_PORTS 7
-
#define U300_FLOATING_INPUT { \
.bias_mode = PIN_CONFIG_BIAS_HIGH_IMPEDANCE, \
.output = false, \
@@ -136,7 +133,7 @@ struct u300_gpio_confdata {
/* Initial configuration */
static const struct __initconst u300_gpio_confdata
-bs335_gpio_config[BS335_GPIO_NUM_PORTS][U300_GPIO_PINS_PER_PORT] = {
+bs335_gpio_config[U300_GPIO_NUM_PORTS][U300_GPIO_PINS_PER_PORT] = {
/* Port 0, pins 0-7 */
{
U300_FLOATING_INPUT,
@@ -630,13 +627,12 @@ static void __init u300_gpio_init_pin(struct u300_gpio *gpio,
}
}
-static void __init u300_gpio_init_coh901571(struct u300_gpio *gpio,
- struct u300_gpio_platform *plat)
+static void __init u300_gpio_init_coh901571(struct u300_gpio *gpio)
{
int i, j;
/* Write default config and values to all pins */
- for (i = 0; i < plat->ports; i++) {
+ for (i = 0; i < U300_GPIO_NUM_PORTS; i++) {
for (j = 0; j < 8; j++) {
const struct u300_gpio_confdata *conf;
int offset = (i*8) + j;
@@ -693,7 +689,6 @@ static struct coh901_pinpair coh901_pintable[] = {
static int __init u300_gpio_probe(struct platform_device *pdev)
{
- struct u300_gpio_platform *plat = dev_get_platdata(&pdev->dev);
struct u300_gpio *gpio;
struct resource *memres;
int err = 0;
@@ -707,9 +702,9 @@ static int __init u300_gpio_probe(struct platform_device *pdev)
return -ENOMEM;
gpio->chip = u300_gpio_chip;
- gpio->chip.ngpio = plat->ports * U300_GPIO_PINS_PER_PORT;
+ gpio->chip.ngpio = U300_GPIO_NUM_PORTS * U300_GPIO_PINS_PER_PORT;
gpio->chip.dev = &pdev->dev;
- gpio->chip.base = plat->gpio_base;
+ gpio->chip.base = 0;
gpio->dev = &pdev->dev;
memres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -750,11 +745,11 @@ static int __init u300_gpio_probe(struct platform_device *pdev)
((val & 0x0000FE00) >> 9) * 8);
writel(U300_GPIO_CR_BLOCK_CLKRQ_ENABLE,
gpio->base + U300_GPIO_CR);
- u300_gpio_init_coh901571(gpio, plat);
+ u300_gpio_init_coh901571(gpio);
/* Add each port with its IRQ separately */
INIT_LIST_HEAD(&gpio->port_list);
- for (portno = 0 ; portno < plat->ports; portno++) {
+ for (portno = 0 ; portno < U300_GPIO_NUM_PORTS; portno++) {
struct u300_gpio_port *port =
kmalloc(sizeof(struct u300_gpio_port), GFP_KERNEL);
@@ -768,8 +763,7 @@ static int __init u300_gpio_probe(struct platform_device *pdev)
port->number = portno;
port->gpio = gpio;
- port->irq = platform_get_irq_byname(pdev,
- port->name);
+ port->irq = platform_get_irq(pdev, portno);
dev_dbg(gpio->dev, "register IRQ %d for port %s\n", port->irq,
port->name);
@@ -806,6 +800,9 @@ static int __init u300_gpio_probe(struct platform_device *pdev)
}
dev_dbg(gpio->dev, "initialized %d GPIO ports\n", portno);
+#ifdef CONFIG_OF_GPIO
+ gpio->chip.of_node = pdev->dev.of_node;
+#endif
err = gpiochip_add(&gpio->chip);
if (err) {
dev_err(gpio->dev, "unable to add gpiochip: %d\n", err);
@@ -860,9 +857,15 @@ static int __exit u300_gpio_remove(struct platform_device *pdev)
return 0;
}
+static const struct of_device_id u300_gpio_match[] = {
+ { .compatible = "stericsson,gpio-coh901" },
+ {},
+};
+
static struct platform_driver u300_gpio_driver = {
.driver = {
.name = "u300-gpio",
+ .of_match_table = u300_gpio_match,
},
.remove = __exit_p(u300_gpio_remove),
};