Merge branch 'i2c/for-4.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:
 "This contains two bigger than usual tree-wide changes this time. They
  all have proper acks, caused no merge conflicts in linux-next where
  they have been for a while. They are namely:

   - to-gpiod conversion of the i2c-gpio driver and its users (touching
     arch/* and drivers/mfd/*)

   - adding a sbs-manager based on I2C core updates to SMBus alerts
     (touching drivers/power/*)

  Other notable changes:

   - i2c_boardinfo can now carry a dev_name to be used when the device
     is created. This is because some devices in ACPI world need fixed
     names to find the regulators.

   - the designware driver got a long discussed overhaul of its PM
     handling. img-scb and davinci got PM support, too.

   - at24 driver has way better OF support. And it has a new maintainer.
     Thanks Bartosz for stepping up!

  The rest is regular driver updates and fixes"

* 'i2c/for-4.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (55 commits)
  ARM: sa1100: simpad: Correct I2C GPIO offsets
  i2c: aspeed: Deassert reset in probe
  eeprom: at24: Add OF device ID table
  MAINTAINERS: new maintainer for AT24 driver
  i2c: nuc900: remove platform_data, too
  i2c: thunderx: Remove duplicate NULL check
  i2c: taos-evm: Remove duplicate NULL check
  i2c: Make i2c_unregister_device() NULL-aware
  i2c: xgene-slimpro: Support v2
  i2c: mpc: remove useless variable initialization
  i2c: omap: Trigger bus recovery in lockup case
  i2c: gpio: Add support for named gpios in DT
  dt-bindings: i2c: i2c-gpio: Add support for named gpios
  i2c: gpio: Local vars in probe
  i2c: gpio: Augment all boardfiles to use open drain
  i2c: gpio: Enforce open drain through gpiolib
  gpio: Make it possible for consumers to enforce open drain
  i2c: gpio: Convert to use descriptors
  power: supply: sbs-message: fix some code style issues
  power: supply: sbs-battery: remove unchecked return var
  ...

4 files changed, 56 insertions, 17 deletions

diff --git a/arch/blackfin/mach-bf533/boards/blackstamp.c b/arch/blackfin/mach-bf533/boards/blackstamp.c
index 0ccf0cf4daaf..fab69c736515 100644
--- a/arch/blackfin/mach-bf533/boards/blackstamp.c
+++ b/arch/blackfin/mach-bf533/boards/blackstamp.c
@@ -22,6 +22,7 @@
 #include <linux/irq.h>
 #include <linux/gpio.h>
 #include <linux/i2c.h>
+#include <linux/gpio/machine.h>
 #include <asm/dma.h>
 #include <asm/bfin5xx_spi.h>
 #include <asm/portmux.h>
@@ -362,11 +363,17 @@ static struct platform_device bfin_device_gpiokeys = {
 #if IS_ENABLED(CONFIG_I2C_GPIO)
 #include <linux/i2c-gpio.h>
 
+static struct gpiod_lookup_table bfin_i2c_gpiod_table = {
+	.dev_id = "i2c-gpio",
+	.table = {
+		GPIO_LOOKUP_IDX("BFIN-GPIO", GPIO_PF8, NULL, 0,
+				GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+		GPIO_LOOKUP_IDX("BFIN-GPIO", GPIO_PF9, NULL, 1,
+				GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+	},
+};
+
 static struct i2c_gpio_platform_data i2c_gpio_data = {
-	.sda_pin		= GPIO_PF8,
-	.scl_pin		= GPIO_PF9,
-	.sda_is_open_drain	= 0,
-	.scl_is_open_drain	= 0,
 	.udelay			= 40,
 }; /* This hasn't actually been used these pins
     * are (currently) free pins on the expansion connector */
@@ -462,7 +469,9 @@ static int __init blackstamp_init(void)
 	int ret;
 
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
-
+#if IS_ENABLED(CONFIG_I2C_GPIO)
+	gpiod_add_lookup_table(&bfin_i2c_gpiod_table);
+#endif
 	i2c_register_board_info(0, bfin_i2c_board_info,
 				ARRAY_SIZE(bfin_i2c_board_info));
 
diff --git a/arch/blackfin/mach-bf533/boards/ezkit.c b/arch/blackfin/mach-bf533/boards/ezkit.c
index 3625e9eaa8a8..d64d270e9e62 100644
--- a/arch/blackfin/mach-bf533/boards/ezkit.c
+++ b/arch/blackfin/mach-bf533/boards/ezkit.c
@@ -19,6 +19,7 @@
 #endif
 #include <linux/irq.h>
 #include <linux/i2c.h>
+#include <linux/gpio/machine.h>
 #include <asm/dma.h>
 #include <asm/bfin5xx_spi.h>
 #include <asm/portmux.h>
@@ -390,11 +391,17 @@ static struct platform_device bfin_device_gpiokeys = {
 #if IS_ENABLED(CONFIG_I2C_GPIO)
 #include <linux/i2c-gpio.h>
 
+static struct gpiod_lookup_table bfin_i2c_gpiod_table = {
+	.dev_id = "i2c-gpio",
+	.table = {
+		GPIO_LOOKUP_IDX("BFIN-GPIO", GPIO_PF1, NULL, 0,
+				GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+		GPIO_LOOKUP_IDX("BFIN-GPIO", GPIO_PF0, NULL, 1,
+				GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+	},
+};
+
 static struct i2c_gpio_platform_data i2c_gpio_data = {
-	.sda_pin		= GPIO_PF1,
-	.scl_pin		= GPIO_PF0,
-	.sda_is_open_drain	= 0,
-	.scl_is_open_drain	= 0,
 	.udelay			= 40,
 };
 
@@ -516,6 +523,9 @@ static struct platform_device *ezkit_devices[] __initdata = {
 static int __init ezkit_init(void)
 {
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
+#if IS_ENABLED(CONFIG_I2C_GPIO)
+	gpiod_add_lookup_table(&bfin_i2c_gpiod_table);
+#endif
 	platform_add_devices(ezkit_devices, ARRAY_SIZE(ezkit_devices));
 	spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 	i2c_register_board_info(0, bfin_i2c_board_info,
diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c
index 23eada79439c..27cbf2fa2c62 100644
--- a/arch/blackfin/mach-bf533/boards/stamp.c
+++ b/arch/blackfin/mach-bf533/boards/stamp.c
@@ -21,6 +21,7 @@
 #include <linux/gpio.h>
 #include <linux/irq.h>
 #include <linux/i2c.h>
+#include <linux/gpio/machine.h>
 #include <asm/dma.h>
 #include <asm/bfin5xx_spi.h>
 #include <asm/reboot.h>
@@ -512,11 +513,17 @@ static struct platform_device bfin_device_gpiokeys = {
 #if IS_ENABLED(CONFIG_I2C_GPIO)
 #include <linux/i2c-gpio.h>
 
+static struct gpiod_lookup_table bfin_i2c_gpiod_table = {
+	.dev_id = "i2c-gpio",
+	.table = {
+		GPIO_LOOKUP_IDX("BFIN-GPIO", GPIO_PF2, NULL, 0,
+				GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+		GPIO_LOOKUP_IDX("BFIN-GPIO", GPIO_PF3, NULL, 1,
+				GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+	},
+};
+
 static struct i2c_gpio_platform_data i2c_gpio_data = {
-	.sda_pin		= GPIO_PF2,
-	.scl_pin		= GPIO_PF3,
-	.sda_is_open_drain	= 0,
-	.scl_is_open_drain	= 0,
 	.udelay			= 10,
 };
 
@@ -848,6 +855,9 @@ static int __init stamp_init(void)
 
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
 
+#if IS_ENABLED(CONFIG_I2C_GPIO)
+	gpiod_add_lookup_table(&bfin_i2c_gpiod_table);
+#endif
 	i2c_register_board_info(0, bfin_i2c_board_info,
 				ARRAY_SIZE(bfin_i2c_board_info));
 
diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c
index 57d1c43726d9..acc5363f60c6 100644
--- a/arch/blackfin/mach-bf561/boards/ezkit.c
+++ b/arch/blackfin/mach-bf561/boards/ezkit.c
@@ -16,6 +16,7 @@
 #include <linux/interrupt.h>
 #include <linux/gpio.h>
 #include <linux/delay.h>
+#include <linux/gpio/machine.h>
 #include <asm/dma.h>
 #include <asm/bfin5xx_spi.h>
 #include <asm/portmux.h>
@@ -379,11 +380,17 @@ static struct platform_device bfin_device_gpiokeys = {
 #if IS_ENABLED(CONFIG_I2C_GPIO)
 #include <linux/i2c-gpio.h>
 
+static struct gpiod_lookup_table bfin_i2c_gpiod_table = {
+	.dev_id = "i2c-gpio",
+	.table = {
+		GPIO_LOOKUP_IDX("BFIN-GPIO", GPIO_PF1, NULL, 0,
+				GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+		GPIO_LOOKUP_IDX("BFIN-GPIO", GPIO_PF0, NULL, 1,
+				GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+	},
+};
+
 static struct i2c_gpio_platform_data i2c_gpio_data = {
-	.sda_pin		= GPIO_PF1,
-	.scl_pin		= GPIO_PF0,
-	.sda_is_open_drain	= 0,
-	.scl_is_open_drain	= 0,
 	.udelay			= 10,
 };
 
@@ -633,6 +640,9 @@ static int __init ezkit_init(void)
 
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
 
+#if IS_ENABLED(CONFIG_I2C_GPIO)
+	gpiod_add_lookup_table(&bfin_i2c_gpiod_table);
+#endif
 	ret = platform_add_devices(ezkit_devices, ARRAY_SIZE(ezkit_devices));
 	if (ret < 0)
 		return ret;