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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-15 04:52:21 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-15 04:52:21 +0300
commit4008e6a9bcee2f3b61bb11951de0fb0ed764cb91 (patch)
treee7e3202d6d156acb57845a1824c9a8249f288c53 /arch/mips
parent6aa2f9441f1ef21f10c41f45e6453b135e9cd736 (diff)
parentd82e99a6f9b38cb1a044b4cd979bd49fd3f67cd2 (diff)
downloadlinux-4008e6a9bcee2f3b61bb11951de0fb0ed764cb91.tar.xz
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 ...
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/alchemy/board-gpr.c23
-rw-r--r--arch/mips/ath79/mach-pb44.c16
2 files changed, 32 insertions, 7 deletions
diff --git a/arch/mips/alchemy/board-gpr.c b/arch/mips/alchemy/board-gpr.c
index 6fb6b3faa158..328d697e72b4 100644
--- a/arch/mips/alchemy/board-gpr.c
+++ b/arch/mips/alchemy/board-gpr.c
@@ -30,6 +30,7 @@
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/i2c-gpio.h>
+#include <linux/gpio/machine.h>
#include <asm/bootinfo.h>
#include <asm/idle.h>
#include <asm/reboot.h>
@@ -218,10 +219,27 @@ static struct platform_device gpr_led_devices = {
/*
* I2C
*/
+static struct gpiod_lookup_table gpr_i2c_gpiod_table = {
+ .dev_id = "i2c-gpio",
+ .table = {
+ /*
+ * This should be on "GPIO2" which has base at 200 so
+ * the global numbers 209 and 210 should correspond to
+ * local offsets 9 and 10.
+ */
+ GPIO_LOOKUP_IDX("alchemy-gpio2", 9, NULL, 0,
+ GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP_IDX("alchemy-gpio2", 10, NULL, 1,
+ GPIO_ACTIVE_HIGH),
+ },
+};
+
static struct i2c_gpio_platform_data gpr_i2c_data = {
- .sda_pin = 209,
+ /*
+ * The open drain mode is hardwired somewhere or an electrical
+ * property of the alchemy GPIO controller.
+ */
.sda_is_open_drain = 1,
- .scl_pin = 210,
.scl_is_open_drain = 1,
.udelay = 2, /* ~100 kHz */
.timeout = HZ,
@@ -295,6 +313,7 @@ arch_initcall(gpr_pci_init);
static int __init gpr_dev_init(void)
{
+ gpiod_add_lookup_table(&gpr_i2c_gpiod_table);
i2c_register_board_info(0, gpr_i2c_info, ARRAY_SIZE(gpr_i2c_info));
return platform_add_devices(gpr_devices, ARRAY_SIZE(gpr_devices));
diff --git a/arch/mips/ath79/mach-pb44.c b/arch/mips/ath79/mach-pb44.c
index be78298dffb4..6b2c6f3baefa 100644
--- a/arch/mips/ath79/mach-pb44.c
+++ b/arch/mips/ath79/mach-pb44.c
@@ -11,7 +11,7 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
-#include <linux/i2c-gpio.h>
+#include <linux/gpio/machine.h>
#include <linux/platform_data/pcf857x.h>
#include "machtypes.h"
@@ -33,16 +33,21 @@
#define PB44_KEYS_POLL_INTERVAL 20 /* msecs */
#define PB44_KEYS_DEBOUNCE_INTERVAL (3 * PB44_KEYS_POLL_INTERVAL)
-static struct i2c_gpio_platform_data pb44_i2c_gpio_data = {
- .sda_pin = PB44_GPIO_I2C_SDA,
- .scl_pin = PB44_GPIO_I2C_SCL,
+static struct gpiod_lookup_table pb44_i2c_gpiod_table = {
+ .dev_id = "i2c-gpio",
+ .table = {
+ GPIO_LOOKUP_IDX("ath79-gpio", PB44_GPIO_I2C_SDA,
+ NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+ GPIO_LOOKUP_IDX("ath79-gpio", PB44_GPIO_I2C_SCL,
+ NULL, 1, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+ },
};
static struct platform_device pb44_i2c_gpio_device = {
.name = "i2c-gpio",
.id = 0,
.dev = {
- .platform_data = &pb44_i2c_gpio_data,
+ .platform_data = NULL,
}
};
@@ -103,6 +108,7 @@ static struct ath79_spi_platform_data pb44_spi_data = {
static void __init pb44_init(void)
{
+ gpiod_add_lookup_table(&pb44_i2c_gpiod_table);
i2c_register_board_info(0, pb44_i2c_board_info,
ARRAY_SIZE(pb44_i2c_board_info));
platform_device_register(&pb44_i2c_gpio_device);