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-rw-r--r--arch/arm/include/asm/hardware/iop3xx.h2
-rw-r--r--arch/arm/mach-iop32x/em7210.c3
-rw-r--r--arch/arm/mach-iop32x/glantank.c3
-rw-r--r--arch/arm/mach-iop32x/iq31244.c3
-rw-r--r--arch/arm/mach-iop32x/iq80321.c3
-rw-r--r--arch/arm/mach-iop32x/n2100.c2
-rw-r--r--arch/arm/plat-iop/i2c.c24
7 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/include/asm/hardware/iop3xx.h b/arch/arm/include/asm/hardware/iop3xx.h
index 64714c869f9f..3cb6f22f510b 100644
--- a/arch/arm/include/asm/hardware/iop3xx.h
+++ b/arch/arm/include/asm/hardware/iop3xx.h
@@ -302,6 +302,8 @@ extern struct platform_device iop3xx_dma_1_channel;
extern struct platform_device iop3xx_aau_channel;
extern struct platform_device iop3xx_i2c0_device;
extern struct platform_device iop3xx_i2c1_device;
+extern struct gpiod_lookup_table iop3xx_i2c0_gpio_lookup;
+extern struct gpiod_lookup_table iop3xx_i2c1_gpio_lookup;
#endif
diff --git a/arch/arm/mach-iop32x/em7210.c b/arch/arm/mach-iop32x/em7210.c
index 493de4fd8b2e..61a1e593f9ec 100644
--- a/arch/arm/mach-iop32x/em7210.c
+++ b/arch/arm/mach-iop32x/em7210.c
@@ -20,6 +20,7 @@
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
#include <mach/hardware.h>
#include <linux/io.h>
#include <linux/irq.h>
@@ -207,6 +208,8 @@ static void __init em7210_init_machine(void)
{
register_iop32x_gpio();
platform_device_register(&em7210_serial_device);
+ gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup);
+ gpiod_add_lookup_table(&iop3xx_i2c1_gpio_lookup);
platform_device_register(&iop3xx_i2c0_device);
platform_device_register(&iop3xx_i2c1_device);
platform_device_register(&em7210_flash_device);
diff --git a/arch/arm/mach-iop32x/glantank.c b/arch/arm/mach-iop32x/glantank.c
index 84cdb4587b34..5a45d616d9ac 100644
--- a/arch/arm/mach-iop32x/glantank.c
+++ b/arch/arm/mach-iop32x/glantank.c
@@ -21,6 +21,7 @@
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/io.h>
+#include <linux/gpio/machine.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
@@ -185,6 +186,8 @@ static void glantank_power_off(void)
static void __init glantank_init_machine(void)
{
register_iop32x_gpio();
+ gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup);
+ gpiod_add_lookup_table(&iop3xx_i2c1_gpio_lookup);
platform_device_register(&iop3xx_i2c0_device);
platform_device_register(&iop3xx_i2c1_device);
platform_device_register(&glantank_flash_device);
diff --git a/arch/arm/mach-iop32x/iq31244.c b/arch/arm/mach-iop32x/iq31244.c
index b177e3900616..8755aa87e591 100644
--- a/arch/arm/mach-iop32x/iq31244.c
+++ b/arch/arm/mach-iop32x/iq31244.c
@@ -22,6 +22,7 @@
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
#include <linux/io.h>
+#include <linux/gpio/machine.h>
#include <mach/hardware.h>
#include <asm/cputype.h>
#include <asm/irq.h>
@@ -281,6 +282,8 @@ void ep80219_power_off(void)
static void __init iq31244_init_machine(void)
{
register_iop32x_gpio();
+ gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup);
+ gpiod_add_lookup_table(&iop3xx_i2c1_gpio_lookup);
platform_device_register(&iop3xx_i2c0_device);
platform_device_register(&iop3xx_i2c1_device);
platform_device_register(&iq31244_flash_device);
diff --git a/arch/arm/mach-iop32x/iq80321.c b/arch/arm/mach-iop32x/iq80321.c
index 815b9f070007..e12699d1c540 100644
--- a/arch/arm/mach-iop32x/iq80321.c
+++ b/arch/arm/mach-iop32x/iq80321.c
@@ -19,6 +19,7 @@
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
#include <linux/io.h>
+#include <linux/gpio/machine.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
@@ -168,6 +169,8 @@ static struct platform_device iq80321_serial_device = {
static void __init iq80321_init_machine(void)
{
register_iop32x_gpio();
+ gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup);
+ gpiod_add_lookup_table(&iop3xx_i2c1_gpio_lookup);
platform_device_register(&iop3xx_i2c0_device);
platform_device_register(&iop3xx_i2c1_device);
platform_device_register(&iq80321_flash_device);
diff --git a/arch/arm/mach-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c
index 1948180594f4..26d76b377e79 100644
--- a/arch/arm/mach-iop32x/n2100.c
+++ b/arch/arm/mach-iop32x/n2100.c
@@ -27,6 +27,7 @@
#include <linux/reboot.h>
#include <linux/io.h>
#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
@@ -341,6 +342,7 @@ device_initcall(n2100_request_gpios);
static void __init n2100_init_machine(void)
{
register_iop32x_gpio();
+ gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup);
platform_device_register(&iop3xx_i2c0_device);
platform_device_register(&n2100_flash_device);
platform_device_register(&n2100_serial_device);
diff --git a/arch/arm/plat-iop/i2c.c b/arch/arm/plat-iop/i2c.c
index 7a79213db3e1..dfbd7c332866 100644
--- a/arch/arm/plat-iop/i2c.c
+++ b/arch/arm/plat-iop/i2c.c
@@ -16,6 +16,7 @@
#include <linux/tty.h>
#include <linux/serial_core.h>
#include <linux/io.h>
+#include <linux/gpio/machine.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/mach/map.h>
@@ -34,6 +35,29 @@
#define IRQ_IOP3XX_I2C_1 IRQ_IOP33X_I2C_1
#endif
+/*
+ * Each of the I2C busses have corresponding GPIO lines, and the driver
+ * need to access these directly to drive the bus low at times.
+ */
+
+struct gpiod_lookup_table iop3xx_i2c0_gpio_lookup = {
+ .dev_id = "IOP3xx-I2C.0",
+ .table = {
+ GPIO_LOOKUP("gpio-iop", 7, "scl", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("gpio-iop", 6, "sda", GPIO_ACTIVE_HIGH),
+ { }
+ },
+};
+
+struct gpiod_lookup_table iop3xx_i2c1_gpio_lookup = {
+ .dev_id = "IOP3xx-I2C.1",
+ .table = {
+ GPIO_LOOKUP("gpio-iop", 5, "scl", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("gpio-iop", 4, "sda", GPIO_ACTIVE_HIGH),
+ { }
+ },
+};
+
static struct resource iop3xx_i2c0_resources[] = {
[0] = {
.start = 0xfffff680,