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Merge branch 'i2c/for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Browse Source 
Pull i2c updates from Wolfram Sang:
 "Features:

   - new drivers: Renesas EMEV2, register based MUX, NXP LPC2xxx
   - core: scans DT and assigns wakeup interrupts.  no driver changes needed.
   - core: some refcouting issues fixed and better API for that
   - core: new helper function for best effort block read emulation
   - slave framework: proper DT bindings and userspace instantiation
   - some bigger work for xiic, pxa, omap drivers

  .. and quite a number of smaller driver fixes, cleanups, improvements"

* 'i2c/for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (65 commits)
  i2c: mux: reg Change ioread endianness for readback
  i2c: mux: reg: fix compilation warnings
  i2c: mux: reg: simplify register size checking
  i2c: muxes: fix leaked i2c adapter device node references
  i2c: allow specifying separate wakeup interrupt in device tree
  of/irq: export of_get_irq_byname()
  i2c: xgene-slimpro: dma_mapping_error() doesn't return an error code
  i2c: Replace I2C_CROS_EC_TUNNEL dependency
  eeprom: at24: use i2c_smbus_read_i2c_block_data_or_emulated
  i2c: core: Add support for best effort block read emulation
  i2c: lpc2k: add driver
  i2c: mux: Add register-based mux i2c-mux-reg
  i2c: dt: describe generic bindings
  i2c: slave: print warning if slave flag not set
  i2c: support 10 bit and slave addresses in sysfs 'new_device'
  i2c: take address space into account when checking for used addresses
  i2c: apply DT flags when probing
  i2c: make address check indpendent from client struct
  i2c: rename address check functions
  i2c: apply address offset for slaves, too
  ...
This commit is contained in:
Linus Torvalds
2015-09-08 16:16:26 -07:00
parent c19176154b 5a73882fd2
commit acceba598e
46 changed files with 2189 additions and 524 deletions
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37
drivers/misc/eeprom/at24.c
View File

@@ -186,19 +186,11 @@ static ssize_t at24_eeprom_read(struct at24_data *at24, char *buf,
if (count > io_limit)
count = io_limit;
switch (at24->use_smbus) {
case I2C_SMBUS_I2C_BLOCK_DATA:
if (at24->use_smbus) {
/* Smaller eeproms can work given some SMBus extension calls */
if (count > I2C_SMBUS_BLOCK_MAX)
count = I2C_SMBUS_BLOCK_MAX;
break;
case I2C_SMBUS_WORD_DATA:
count = 2;
break;
case I2C_SMBUS_BYTE_DATA:
count = 1;
break;
default:
} else {
/*
* When we have a better choice than SMBus calls, use a
* combined I2C message. Write address; then read up to
@@ -229,27 +221,10 @@ static ssize_t at24_eeprom_read(struct at24_data *at24, char *buf,
timeout = jiffies + msecs_to_jiffies(write_timeout);
do {
read_time = jiffies;
switch (at24->use_smbus) {
case I2C_SMBUS_I2C_BLOCK_DATA:
status = i2c_smbus_read_i2c_block_data(client, offset,
count, buf);
break;
case I2C_SMBUS_WORD_DATA:
status = i2c_smbus_read_word_data(client, offset);
if (status >= 0) {
buf[0] = status & 0xff;
buf[1] = status >> 8;
status = count;
}
break;
case I2C_SMBUS_BYTE_DATA:
status = i2c_smbus_read_byte_data(client, offset);
if (status >= 0) {
buf[0] = status;
status = count;
}
break;
default:
if (at24->use_smbus) {
status = i2c_smbus_read_i2c_block_data_or_emulated(client, offset,
count, buf);
} else {
status = i2c_transfer(client->adapter, msg, 2);
if (status == 2)
status = count;

1
drivers/misc/eeprom/max6875.c
View File

@@ -191,6 +191,7 @@ static const struct i2c_device_id max6875_id[] = {
{ "max6875", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, max6875_id);
static struct i2c_driver max6875_driver = {
.driver = {