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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-21 17:40:46 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-21 17:40:46 -0700 |
| commit | 99cc7ad46b62ef20b0478147677bebd1157bd9cf (patch) | |
| tree | f07f33826e6947108234707030867d969230611d /drivers/i2c/muxes/i2c-mux-mlxcpld.c | |
| parent | 0214f46b3a0383d6e33c297e7706216b6a550e4b (diff) | |
| parent | 19358d4488db7e6a04e940730cc75909d7d1e0d8 (diff) | |
Merge branch 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
- the core has now a lockless variant of i2c_smbus_xfer. Some open
coded versions of this got removed in drivers. This also enables
proper SCCB support in regmap.
- locking got a more precise naming. i2c_{un}lock_adapter() had to go,
and we know use i2c_lock_bus() consistently with flags like
I2C_LOCK_ROOT_ADAPTER and I2C_LOCK_SEGMENT to avoid ambiguity.
- the gpio fault injector got a new delicate testcase
- the bus recovery procedure got fixed to handle the new testcase
correctly
- a new quirk flag for controllers not able to handle zero length
messages together with driver updates to use it
- new drivers: FSI bus attached I2C masters, GENI I2C controller, Owl
family S900
- and a good set of driver improvements and bugfixes
* 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (77 commits)
i2c: rcar: implement STOP and REP_START according to docs
i2c: rcar: refactor private flags
i2c: core: ACPI: Make acpi_gsb_i2c_read_bytes() check i2c_transfer return value
i2c: core: ACPI: Properly set status byte to 0 for multi-byte writes
dt-bindings: i2c: rcar: Add r8a774a1 support
dt-bindings: i2c: sh_mobile: Add r8a774a1 support
i2c: imx: Simplify stopped state tracking
i2c: imx: Fix race condition in dma read
i2c: pasemi: remove hardcoded bus numbers on smbus
i2c: designware: Add SPDX license tag
i2c: designware: Convert to use struct i2c_timings
i2c: core: Parse SDA hold time from firmware
i2c: designware-pcidrv: Mark expected switch fall-through
i2c: amd8111: Mark expected switch fall-through
i2c: sh_mobile: use core to detect 'no zero length read' quirk
i2c: xlr: use core to detect 'no zero length' quirk
i2c: rcar: use core to detect 'no zero length' quirk
i2c: stu300: use core to detect 'no zero length' quirk
i2c: pmcmsp: use core to detect 'no zero length' quirk
i2c: mxs: use core to detect 'no zero length' quirk
...
Diffstat (limited to 'drivers/i2c/muxes/i2c-mux-mlxcpld.c')
| -rw-r--r-- | drivers/i2c/muxes/i2c-mux-mlxcpld.c | 28 |
1 files changed, 4 insertions, 24 deletions
diff --git a/drivers/i2c/muxes/i2c-mux-mlxcpld.c b/drivers/i2c/muxes/i2c-mux-mlxcpld.c index 12ad8d65faf6..f2bf3e57ed67 100644 --- a/drivers/i2c/muxes/i2c-mux-mlxcpld.c +++ b/drivers/i2c/muxes/i2c-mux-mlxcpld.c @@ -94,31 +94,11 @@ static int mlxcpld_mux_reg_write(struct i2c_adapter *adap, struct i2c_client *client, u8 val) { struct mlxcpld_mux_plat_data *pdata = dev_get_platdata(&client->dev); - int ret = -ENODEV; - - if (adap->algo->master_xfer) { - struct i2c_msg msg; - u8 msgbuf[] = {pdata->sel_reg_addr, val}; - - msg.addr = client->addr; - msg.flags = 0; - msg.len = 2; - msg.buf = msgbuf; - ret = __i2c_transfer(adap, &msg, 1); - - if (ret >= 0 && ret != 1) - ret = -EREMOTEIO; - } else if (adap->algo->smbus_xfer) { - union i2c_smbus_data data; - - data.byte = val; - ret = adap->algo->smbus_xfer(adap, client->addr, - client->flags, I2C_SMBUS_WRITE, - pdata->sel_reg_addr, - I2C_SMBUS_BYTE_DATA, &data); - } + union i2c_smbus_data data = { .byte = val }; - return ret; + return __i2c_smbus_xfer(adap, client->addr, client->flags, + I2C_SMBUS_WRITE, pdata->sel_reg_addr, + I2C_SMBUS_BYTE_DATA, &data); } static int mlxcpld_mux_select_chan(struct i2c_mux_core *muxc, u32 chan) |